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i TO THE OWNER This Owner’s Manual has been prepared to provide you with important oper- ation, maintenance and safety information relating to your UD Trucks vehi- cle. We urge you and others operating the vehicle to carefully read this manual and follow the recommendations for operation, maintenance, and safety. Failure to follow these recommendations could result in serious injury or death to those riding in this vehicle or bystanders. This manual should be considered a permanent part of the vehicle and must be kept with the vehicle at all times. This Owner’s Manual should accompany the vehicle when sold to provide future owners and opera- tors with important operation, safety and maintenance information. The characteristics and functions of this vehicle make its driving and han- dling different from that of a car. Before operating your vehicle, familiarize yourself and others operating the vehicle with these differences. The Warranty and Service Booklet provided with each vehicle contains important information about warranty and service matters. Keep it with your vehicle at all times and present it to your authorized UD Trucks dealer or other service facility when service is required. When service or other assistance is required, consult your UD Trucks dealer. If you have a problem that has not been handled to your satisfaction, contact UD Trucks North America, Inc., 7900 National Service Road Greensboro, NC 27409. All rights reserved. Reproduction by any means, electronic or mechanical including photocopying, recording or by any information storage and retrieval system or translation in whole or part is not per- mitted without written authorization from UD Trucks Corporation. UD Trucks may change the contents without notice and without incurring obligation. © 2012 UD Trucks Corporation 1206-20710-K1
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Page 1: Manual Nissan Ud

i

TO THE OWNER This Owner’s Manual has been prepared to provide you with important oper-ation, maintenance and safety information relating to your UD Trucks vehi-cle. We urge you and others operating the vehicle to carefully read thismanual and follow the recommendations for operation, maintenance,and safety. Failure to follow these recommendations could result inserious injury or death to those riding in this vehicle or bystanders.This manual should be considered a permanent part of the vehicle andmust be kept with the vehicle at all times. This Owner’s Manual shouldaccompany the vehicle when sold to provide future owners and opera-tors with important operation, safety and maintenance information.The characteristics and functions of this vehicle make its driving and han-dling different from that of a car. Before operating your vehicle, familiarizeyourself and others operating the vehicle with these differences.The Warranty and Service Booklet provided with each vehicle containsimportant information about warranty and service matters. Keep it with yourvehicle at all times and present it to your authorized UD Trucks dealer orother service facility when service is required.When service or other assistance is required, consult your UD Trucksdealer. If you have a problem that has not been handled to your satisfaction,contact UD Trucks North America, Inc., 7900 National Service RoadGreensboro, NC 27409.

All rights reserved. Reproduction by any means, electronic or mechanical including photocopying, recording or by any information storage and retrieval system or translation in whole or part is not per-mitted without written authorization from UD Trucks Corporation. UD Trucks may change the contents without notice and without incurring obligation.

© 2012 UD Trucks Corporation

1206-20710-K1

Page 2: Manual Nissan Ud

EDERAL HIGHWAY DMINISTRATION EGULATIONarious regulations relating to vehi-le performance, equipment, andafety have been issued by theepartment of Transportation. Thesegulations include, but are not lim-

ed to the Federal Motor Vehicleafety Standards and the Federalotor Carrier Safety Regulations.ther federal, state and local regula-

ons may also apply. Final stageanufacturers and motor carriersre responsible for knowing andomplying with all regulations thatay apply to the vehicle. A finished

ehicle may also require devices thatre not specified in the regulations.ody builders, subsequent stageanufacturers and carriers mustetermine what safety devices areecessary for the safe operation ofe vehicle.

ii

CLEAN IDLE CERTIFIED LABEL FOR U.S.Make sure that the following cleanengine idling certified label is affixedto the left side of the corner backouter. By the CARB regulation listedbelow, the label must be affixedthere to prove that the new vehiclewith diesel engine manufacturedfrom Jan., 2008 conforms to this reg-ulation.

CALIFORNIA PROPOSITION 65 WARNING

FARVcsDreitSMOtimacmvaBmdnth

CARB § 1956.8. Exhaust Emission Standard and Test Procedure (a) (b) Heavy-Duty Diesel Engine Idling Requirements

WARNING

Engine exhaust, some of itsconstituents, and certain vehi-cle components contain oremit chemicals known to theState of California to causecancer and birth defects orother reproductive harm. Inaddition, certain fluids con-tained in vehicles and certainproducts of component wearcontain or emit chemicalsknown to the State of Californiato cause cancer and birthdefects or other reproductiveharm.

Page 3: Manual Nissan Ud

iii

WARNING

Making modifications to vari-ous parts, components andsystems of the vehicle, suchas brake and steering systemcan adversely affect the qual-ity, reliability and operation ofyour vehicle and could resultin property damage, seriousinjury or death. Such modifica-tions must be avoided.

Page 4: Manual Nissan Ud

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Page 5: Manual Nissan Ud

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IN

ID

B

ED

er Window) .......................... 5-4

........................................6-1............................................. 6-1............................................. 6-5............................................. 6-7

CONTROLS .................7-1............................................. 7-3............................................ 7-5r ........................................ 7-15

ators................................... 7-26........................................... 7-30........................................... 7-31tor lights ............................. 7-43ns....................................... 7-53........................................... 7-69........................................... 7-75

.........................................8-1DITIONER CONTROL.........9-1............................................. 9-1

N .................................10-1ns...................................... 10-1s ........................................ 10-2........................................... 10-2

TABLE OF CONTENTSTRODUCTION AND SAFETY..................... 1-1When Reading the Manual................................. 1-1New Vehicles Break-in Period............................ 1-2Keys ................................................................... 1-2Fuel .................................................................... 1-3Metric Mismatch ................................................. 1-3Abbreviation ....................................................... 1-4

ENTIFICATION............................................ 2-1Vehicle Identification Number (VIN) ................... 2-1Unit Identification................................................ 2-2

EFORE DRIVING YOUR VEHICLE ............. 3-1Overloading........................................................ 3-2Towing Trailers ................................................... 3-3Safety Reminders............................................... 3-6Daily Maintenance.............................................. 3-6EGR System Operation.....................................3-11UD Trucks, US2010 Emissions solution............3-11Handling of the exhaust emissioncontrol system.................................................. 3-12Vehicle Labels .................................................. 3-24

NTERING AND LEAVING THE CAB ........... 4-1OORS AND WINDOWS ............................... 5-1

Door ................................................................... 5-1Keyless Entry System ........................................ 5-2

Door Window (Pow

DRIVING POSITIONSeats .....................Seat Belts ..............Steering Wheel ......

INSTRUMENTS ANDIgnition Key SwitchMeters and GaugesMulti-display MonitoWarnings and IndicBuzzers .................Warnings ...............Warning and indicaSwitches and ButtoDPF System ..........Levers and Control

ACCESSORIES......HEATER OR AIR CON

Air Conditioner.......

VEHICLE OPERATIOOperating PrecautioBreak-in PrecautionVehicle Loading.....

Page 6: Manual Nissan Ud

............................................ 11-60tem.................................... 11-62

............................................ 11-65

............................................ 11-67r Fluid................................ 11-68

............................................ 11-69Systems ............................. 11-70tem..................................... 11-73............................................ 11-75............................................ 11-78............................................ 11-80rs ....................................... 11-82........................................... 11-83........................................... 11-89

ENCY/G............................................12-1ng.......................................... 12-1.............................................. 12-3.............................................. 12-6.............................................. 12-9............................................ 12-13

.........................................13-1dard ..................................... 13-1............................................. 13-3.............................................. 13-5bricants ............................... 13-5

AE Viscosity Chart................ 13-6

vi

Towing Trailers ................................................. 10-3Starting the Engine........................................... 10-4Warming up Engine.......................................... 10-7Stopping the Engine......................................... 10-9Driving on Grades .......................................... 10-10Driving in Difficult Conditions ..........................10-11Operating with Manual Transmission ..............10-11Operating with Automatic Transmission......... 10-14Brake Operation ............................................. 10-33Parking your Vehicle ...................................... 10-35After Parking Your Vehicle.............................. 10-36In Cold Weather ............................................. 10-36Idle Shutdown ................................................ 10-38

VEHICLE SERVICE AND MAINTENANCE...11-1Clean Air Act .....................................................11-1Maintenance Intervals .......................................11-3Grease Lubrication Points...............................11-16Before Performing Maintenance .....................11-19Cab..................................................................11-20Engine Cooling System...................................11-24Engine Oil and Oil Filters ................................11-31Fuel System ....................................................11-37Air Cleaner Element ........................................11-44Drive Belt.........................................................11-46Aftertreatment DEF Filter ................................11-48CCV Filter........................................................11-50Transmission Gear Oil.....................................11-51Differential Gear Oil.........................................11-59

Steering System .Service Brake SysClutch .................Suspension.........Windshield WasheOutside Mirrors...Emission Control Noise Control SysBattery ................Lights..................Fuses..................Blower Motor FilteWheels and TiresAppearance Care

IN CASE OF EMERGTROUBLESHOOTIN

Engine OverheatiJump Starting .....Tire Change........Towing ................Troubleshooting..

SERVICE DATA....Maintenance StanTightening TorqueBulbs ..................Recommended LuRecommended S

Page 7: Manual Nissan Ud

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Refill Capacities ............................................... 13-7Conversion Factors.......................................... 13-8

REPORTING SAFETY DEFECTS ................14-1INDEX............................................................15-1

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INTRODUCTION AND SAFETY

IA ctions which have signs

“NOTE”. They are particularly

ptions, components and featuresdescribed in this manual may oral and may or may not be applica- any questions, consult your UD

hazardous situation which, if notath or serious injury.

azardous situation which, if notdeath or serious injury.

azardous situation which, if notminor or moderate injury.

ich, if not avoided, could result invehicle.

means “Do not do this” or ”.

NTRODUCTION ND SAFETY

WHEN READING THE MANUAL

In this manual, read very carefully those se“DANGER”, “WARNING”, “CAUTION” andimportant.

UD Trucks Corporation offers a variety of oon its vehicles. Therefore, the equipment may not be identified as standard or optionble to your particular vehicle. If you haveTrucks dealer.

DANGER Indicates an imminentlyavoided, will result in de

WARNING Indicates a potentially havoided, could result in

CAUTION Indicates a potentially havoided, could result in

CAUTION Indicates a situation whproperty damage to the

NOTE Indicates good practice.

If you see this symbol, it“Do not let this happen

- 1

Page 9: Manual Nissan Ud

1 - 2

INTRODUCTION AND SAFETY

KEYSDuplicate keys are provided withyour UD Trucks vehicle. Each keyoperates the door locks and ignitionkey switch. Record the key numberstamped on your keys and store in asafe place. Contact your UD Trucksdealer if key replacement becomesnecessary. The key number willenable the UD Trucks dealer to orderreplacement keys.See the “DOORS AND WINDOWS”section for door operation and Key-less Entry System.

Key number plate

The key number is engraved on thekey number plate so that only theowner will know the key number.Remove this from the key you nor-mally use and store it in a safe placeother than in the vehicle. (The keynumber is not engraved on the key.)

All information and specifications inthis manual are based on the prod-uct information in effect at the time ofprinting. The right is reserved to dis-continue models, change informa-tion, specifications or design withoutnotice and without incurring obliga-tion.We urge you to drive safely, use thesafety equipment provided with yourvehicle and observe traffic signs andlocal laws.Thank you for selecting a UD Trucksproduct. We sincerely hope that yourUD Trucks experience is safe, satis-factory and pleasant.

NEW VEHICLES BREAK-IN PERIODFor extended service life and reliableperformance, your UD Trucks vehi-cle requires proper handling duringthe first 600 miles (1,000 km) ofoperation. Special instructions forthis break-in period are described inthe "BREAK-IN PRECAUTIONS" onpage 10-2. After this initial break-inperiod, continued routine inspectionand maintenance as described inthis manual will help assure contin-ued dependable operation of yourUD Trucks vehicle.For details, refer to the “VEHICLESERVICE AND MAINTENANCE”section.

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INTRODUCTION AND SAFETY

N

TRIC MISMATCHr vehicle may utilize parts whiche either metric and/or SAE unitensions. Any fasteners e.g. bolts nuts, used to replace old ones,st have the same dimensions andngth as those removed.

WARNING

ismatched or incorrecthread fasteners can result inhread stripping and/or assem-ly weakness leading to vehi-le damage, malfunction orossible serious injury.

- 3

OTE:When leaving the car, be sureto remove the key and lock thedoors. This will prevent theft.

FUELYour UD Trucks vehicle is designedto operate on diesel fuel only.For details, refer to the "Fuel require-ments" on page 11-38.

MEYouhavdimandmustre

WARNINGDo not leave children alone inthe vehicle. If you must leavethe car, be sure to remove theignition key to avoid an acci-dent.

CAUTIONOnly use genuine part ignitionkeys to prevent accidents.

CAUTION

Do not use fuel additives,agents for removal of waterfrom the fuel, agents forimprovement of the fuel effi-ciency.This can cause smoke genera-tion or defects from defectivesliding of the sliding surfaceslubricated by fuel system.

Do not install devices forimprovement of the fuel effi-ciency inside the fuel tank.Wear particles, fragments fromthe installed devices (after-market parts) can causedefects of the fuel system.

Mttbcp

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INTRODUCTION AND SAFETY

ABBREVIATIONIn this manual, the following abbrevi-ations are used.

ATM: Automatic transmissionCAN: Controller Area NetworkCCV: Closed Crankcase VentilationDEF: Diesel Exhaust FluidDPF: Diesel Particulate FilterDTC: Diagnostic Trouble CodeEGR: Exhaust Gas RecirculationMTM: Manual transmissionMulti-display meter: Combination meter with multi-display functionOBD: On Board DiagnosticSCR: Selective Catalytic ReductionTCM: Transmission Control Module

Page 12: Manual Nissan Ud

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IDENTIFICATION

IVNT(Vth

- 1

DENTIFICATIONEHICLE IDENTIFICATION UMBER (VIN)he vehicle identification numberIN) plate is located on the riser ofe driver’s side.

The meaning of each character inthe vehicle identification number isgiven in the sample below.

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IDENTIFICATION

UNIT IDENTIFICATIONThe locations of the stamped chas-sis serial number, engine serial num-ber, and each assembly and serialnumber of transmission, differentialcarrier, front axle and rear axle areshown below:Chassis serial number location

Vehicle lines, series, Chassis, GVWR ClassCode InformationM1 UD1800 (MKA8F) with MLS63B transmission 4 x 2, Class 5M3 UD1800 (MKA8F) with 1000RDS transmission 4 x 2, Class 5L1 UD2000 (MKB8F) with MLS63B transmission 4 x 2, Class 5L3 UD2000 (MKB8F) with 1000RDS transmission 4 x 2, Class 5C1 UD2300DH (LKC8F) with MLS63B transmission 4 x 2, Class 6 C4 UD2300DH (LKC8F) with 2200RDS transmission 4 x 2, Class 6G1 UD2300LP (LKC8F) with MLS63B transmission 4 x 2, Class 6G4 UD2300LP (LKC8F) with 2200RDS transmission 4 x 2, Class 6A1 UD2600 (PKA8F) with MLS63B transmission 4 x 2, Class 6 A2 UD2600 (PKA8F) with MPS63B transmission 4 x 2, Class 6 A4 UD2600 (PKA8F) with 2200RDS transmission 4 x 2, Class 6A6 UD2600 (PKA8F) with 3000RDS transmission 4 x 2, Class 6D1 UD2600LP (PKA8F) with MLS63B transmission 4 x 2, Class 6D2 UD2600LP (PKA8F) with MPS63B transmission 4 x 2, Class 6D4 UD2600LP (PKA8F) with 2200RDS transmission 4 x 2, Class 6D6 UD2600LP (PKA8F) with 3000RDS transmission 4 x 2, Class 6 K1 UD3300 (PKC8F) with MLS63B transmission 4 x 2, Class 7K2 UD3300 (PKC8F) with MPS63B transmission 4 x 2, Class 7K5 UD3300 (PKC8F) with 2500RDS transmission 4 x 2, Class 7K6 UD3300 (PKC8F) with 3000RDS transmission 4 x 2, Class 7

Page 14: Manual Nissan Ud

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IDENTIFICATION

E

Tn

ATM (Allison 3000)

ferential carrier assembly and ial number location

D1800, UD2000 and UD2300LP

- 3

ngine serial number location

ransmission assembly and serial umber location

MTM (MLS63)

MTM (MPS63)

ATM (Allison 1000, 2200, 2500)

Difser

U

Page 15: Manual Nissan Ud

2 - 4

IDENTIFICATION

UD2300DH

UD2600 and UD3300

Rear axle assembly and serial number location

Front axle assembly and serial number location

Page 16: Manual Nissan Ud

3 - 1

BEFORE DRIVING YOUR VEHICLE

BEFORE DRIVING YOUR VEHICLE

WARNING

Be sure this vehicle includes required safety features. This vehiclemay be put to many uses, and UD Trucks Corporation cannot antici-pate all of them. Always consult safety regulations in effect for loca-tion and type of use of the vehicle. Below are two safety adaptationsrequired under certain circumstances. Other measures may berequired depending on the type of body built on the chassis and theuses expected for the final vehicle. Neglecting good safety measurescould cause a serious accident.

REAR IMPACT PROTECTIONSection 393.86 of the Federal Motor Carrier Safety Regulationsrequires certain vehicles to be equipped with rear impact protectionguards. Such guards must be installed in accordance with the FederalMotor Carrier Safety Regulations. Make sure your vehicle has rearimpact protection that meets or exceeds all applicable regulations forwherever it will be driven and that it is installed correctly.

VISIBILITY DEVICESFederal Motor Vehicle Safety Standards and Federal Motor CarrierSafety Regulations require certain vehicles to be equipped with ret-roreflective sheeting or other devices to insure the vehicle is clearlyvisible. Be sure you have visibility devices in compliance with the reg-ulations and take any other steps necessary to ensure that the vehicleis sufficiently conspicuous at night or in low lighting conditions.

Page 17: Manual Nissan Ud

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BEFORE DRIVING YOUR VEHICLE

R GAWR-Front GAWR-Rear

5 lb0 kg)

7,280 lb(3,300 kg)

13,660 lb(6,200 kg)

0 lb5 kg)

7,280 lb(3,300 kg)

13,660 lb(6,200 kg)

0 lb5 kg)

8,375 lb(3,800 kg)

15,430 lb(7,000 kg)

8,375 lb(3,800 kg)

16,535 lb(7,500 kg)

5 lb0 kg)

11,020 lb(5,000 kg)

20,280 lb(9,200 kg)

11,020 lb(5,000 kg)

20,280 lb(9,200 kg)

0 lb5 kg)

11,900 lb(5,400 kg)

21,000 lb(9,525 kg)

)

)

OVERLOADING

WARNING Model Tire GVW

Never load your vehicle inexcess of the Gross VehicleWeight Rating (GVWR) and theGross Axle Weight Ratings ofthe front and rear axle (GAWR).Overloading may cause loss ofvehicle control and result in seri-ous injury or death. It may alsovoid the new vehicle warrantyand shorten vehicle life.

UD1800 225/70R19.5 (F) 17,99(8,16

UD2000 225/70R19.5 (F) 19,50(8,84

UD2300 LP 245/70R19.5 (G)23,00

(10,43UD2300 DH 9R22.5 (G)

UD2600 11R22.5 (G)25,99

(11,79UD2600 LP 255/70R22.5 (H)

UD3300 11R22.5 (G) 32,90(14,92

NOTE:UD2300 LP

Tire specification: 245/70R19.5 (GUD2300 DH

Tire specification: 9R22.5 (G)UD2600

Tire specification: 11R22.5 (G)UD2600 LP

Tire specification: 255/70R22.5 (H

Page 18: Manual Nissan Ud

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BEFORE DRIVING YOUR VEHICLE

T

DGa(ffifoTG

GmtrvTtibaW

vehicle. The GCW must never

Weight Rating) — is the maxi-of the fully loaded vehicle (includ-ent, passengers, and cargo).

CAUTION

e Rating or Simplified Final-ification Label vehicle weight result in substandard vehiclermance, engine, transmissionamage, serious damage to thentrol and personal injury.

- 3

OWING TRAILERS

efinitions:AWR (Gross Axle Weight Rating) — is the maximumllowable weight that can be carried by a single axleront or rear). These numbers are shown on the Simpli-ed Final-stage Vehicle Certification Label that can beund on the inside of the driver’s door or the door frame.he total load on each axle must never exceed itsAWR.

CWR (Gross Combined Weight Rating) — is the maxi-um allowable weight of the vehicle and the loadedailer — including all cargo and passengers — that theehicle can handle without risking damage (Important:he towing vehicle's braking system is rated for opera-on at GVWR, not at GCWR). Separate functionalrakes should be used for safe control of towed vehiclesnd for trailers where the GCW (Gross Combinedeight) of the towing vehicle plus the trailer exceed the

GVWR of the towingexceed the GCWR.

GVWR (Gross Vehiclemum allowable weight ing all options, equipm

WARNING

Towing trailers beyond the maximum recom-mended trailer weight which exceeds the limit ofthe vehicle’s GCWR, GVWR, GAWR(s) or tire rat-ings could result in engine damage, transmissiondamage, structural damage, loss of vehicle con-trol, vehicle rollover and personal injury.

Exceeding the Tirstage Vehicle Certrating limits couldhandling or perfoand/or structural dvehicle, loss of co

Page 19: Manual Nissan Ud

3 - 4

BEFORE DRIVING YOUR VEHICLE

e based on the specific transmission

ATM

4) 26,000 (11,793)**

4) 26,000 (11,793)**

9) 26,000 (11,793)**

2) 26,000 (11,793)**

2) 26,000 (11,793)**

0) 26,000 (11,793)**

7) 26,000 (11,793)**

0) N/A

0) N/A

0) 57,770 (26,200)**

58,430 (26,500)**

57,990 (26,300)**

6) 26,000 (11,793)**

The following chart indicates the allowable GCWR for your UD Trucks vehiclmodel and specific rear axle ratio:

Maximum GCWR - Ib. (kg.)Vehicle Model Engine Type Rear Axle Ratio * MTM

UD1800

D (245hp)

3.90 / 4.11/ 4.33 29,000 (13,15

UD2000 3.90 / 4.11/ 4.33 29,000 (13,15

UD2300LP4.11 33,135 (15,02

4.33 / 4.56 34,000 (15,42

UD2300DH 4.88 / 5.29 34,000 (15,42

UD2600

5.14 34,945 (15,85

5.57 41,000 (18,59

E (280hp)

4.63 48,065 (21,80

4.88 50,715 (23,00

5.57 57,770 (26,20

5.86 N/A

6.17 N/A

UD2600LP D (245hp) 4.88 40,225 (18,24

Page 20: Manual Nissan Ud

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BEFORE DRIVING YOUR VEHICLE

*C**N

N/A

N/A

59,975 (27,200)**

64,385 (29,200)**

33,000 (14,968)**

N/A

N/A

N/A

57,770 (26,200)**

58,430 (26,500)**

57,990 (26,300)**

55,565 (25,200)**

ATM

- 5

onsult your authorized UD Trucks dealer for information on “Rear Axle Ratio”.GCWR rating limitations, as directed by AIlison Transmission./A - not applicable, no approved GCWR.

UD2600LP E (280hp)

4.33 50,490 (22,900)

4.63 53,800 (24,400)

5.14 N/A

5.86 N/A

UD3300

D (245hp)

5.14 34,945 (15,850)

5.57 41,005 (18,600)

5.86 43,100 (19,550)

6.83 50,000 (22,680)

E (280hp)

4.88 50,715 (23,000)

5.14 53,580 (24,300)

5.57 57,770 (26,200)

5.86 58,430 (26,500)

6.17 N/A

6.50 N/A

Vehicle Model Engine Type Rear Axle Ratio * MTM

Page 21: Manual Nissan Ud

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BEFORE DRIVING YOUR VEHICLE

objects embedded in treadgrooves.

Inspect disc wheels for damage.Check that wheel nuts are properly

installed and tightened.Drain condensate from air reser-

voir.Check if water has accumulated in

the primary fuel filter. Check whether a red signal shows

on air cleaner service indicator forclogging of the air cleaner.

Check that all light lenses areundamaged and clean.

Check levels of engine oil andpower steering fluid.

With the cab tiltedCheck drive belts for proper ten-

sion and for damage.Examine all oil and fluid reservoirs

for leaks.

Inside the cabCheck that mirrors are intact,

adjusted, and clean.Check that doors are securely

closed and locked.

SAFETY REMINDERSFor your safety and that of others,observe the following precautions:Never drive while under the influ-

ence of intoxicating beverages ordrugs which may affect your abilityto operate your vehicle safely.

Drive defensively. Expect theunexpected! Properly use the seatbelts and head restraints providedwith your vehicle.

Observe posted speed limits andother local laws. Never drive fasterthan conditions allow.

Know your vehicle and its operat-ing characteristics.

Maintain your vehicle according tothe schedules and instructiondescribed in this manual.See the “VEHICLE SERVICE ANDMAINTENANCE”.

DAILY MAINTENANCEDaily maintenance should be per-formed by the driver before or afterthe day’s operation in order toassure safe driving and preventproblems on the road.For complete details, refer to the“CHECK POINTS” (next page) and“VEHICLE SERVICE AND MAINTE-NANCE” section in this manual.If a problem with any part of the vehi-cle is noticed during daily inspection,it should be repaired immediately. Consult your authorized UD Trucksdealer or qualified service facility forrepairs.

Outside the vehicleCheck tire air pressure.Examine all tires for cracks, dam-

age, abnormal wear, and foreign

WARNING

Repair any malfunction beforeoperating your vehicle. Failureto do so can increase the riskof serious injury, death orproperty damage.

Page 22: Manual Nissan Ud

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BEFORE DRIVING YOUR VEHICLE

WRC

re sounding and no warningghts, warnings are on except fore PARKING BRAKE warning

ght.heck that all lights and turn sig-als function properly.

CReference

page

have the belt replacedrvice facility. 11-46

races of oil on the roadd contamination. 11-33

es of water on the roadheck the coolant level. light remains off while 11-25

indicator. When the red 11-44

ness. Inspect all hoses;lace them. –

fuel filter before water When water has accu- in the fuel tank. Drain 11-41

- 7

Check that seat belts are intact,undamaged and properly adjusted.Check that head restraints areintact and properly adjusted.ith engine startedefer to “INSTRUMENTS ANDONTROLS”.

Check the horn for proper opera-tion.

Check the operation of windshieldwipers and washer and the condi-tion of the wiper blades.

Check that each gauge on theinstrument panel is functioningproperly. Be sure that no buzzers

alithli

Cn

heck points

Items Check points

Drive beltCheck for belt tension, wear or cracks. If required,by your authorized UD Trucks dealer or qualified seAlways replace the two belts as a set.

Engine oil leakage and engine oil level

Check for oil leakage from engine. Also check for tdirectly under the engine. Check engine oil level an

Coolant leakage and engine coolant level

Check for leakage from engine. Also check for tracdirectly under the engine. If leakage is noticed, cCheck that the ENGINE COOLANT LEVEL warningthe engine is in operation.

Air cleaner service indica-tor

Check whether a red signal shows on the service signal is shown, replace the air cleaner element.

Water hoses and clamps Check all radiator and heater hose clamps for tightif they are swollen, cracked or otherwise worn, rep

Primary fuel filterCheck for water accumulation. Drain water from thereaches the upper portion of the transparent case.mulated in the fuel filter, it has also accumulatedwater from fuel tank when the fuel filter is drained.

Page 23: Manual Nissan Ud

3 - 8

BEFORE DRIVING YOUR VEHICLE

Reference page

. It is advisable to keep the 7-12

. It is advisable to keep the 7-10

peration is erratic or noisy,roblem. –

e system, clutch system,sing system for leakage of air leakage is sometimes

Leakage may be presentf leakage is noticed, checkpoint and correct the level

ny nut is missing or loose,pecified torque. 11-86

–te that air pressure differs

n matter caught in grooves.11-83

ir pressure gauge on thedepress the brake pedal. accompanied by discharg-d check for braking perfor-

7-8, 10-33

(Cont’d)

Items Check points

Fuel quantity Check the amount of fuel using the fuel gaugefuel tank full.

DEF quantity Check the amount of fuel using the DEF gaugeDEF tank full.

Starting ability and noise Check engine for smooth starting. If engine oimmediately stop and check the cause of the p

Oil, fluid, fuel, DEF, greaseand air leakage

Check the transmission and differential, brakpower steering system, fuel system and DEF dooil, fluid, fuel, DEF, grease and/or air. Fuel andhard to detect so careful checks are needed.only when the engine/vehicle is in operation. Ithe level of oil/fluid/coolant, repair the leaking as necessary.

Wheel nut Check all wheel nuts for proper tightness. If acheck that all wheel nuts are tightened to the s

Disc wheel Check for deformity, cracks or damage.

TireCheck the air pressure using a tire gauge. Nobetween the allowable load capacities of tires.Also check tread depth and for cracks or foreig

Service brake operation

Check for the specified air pressure of the ainstrument panel. With the vehicle stopped, Then, release the pedal to ensure the sound ising air. Next, drive the vehicle at low speeds anmance.

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BEFORE DRIVING YOUR VEHICLE

(CReference

page

pletely from air reser-

ryer may be faulty andre and after the day’s

11-63

the PARKING BRAKEe ON position and that 7-76

on and off to ensure

Clean dirty light lenses. 7-57

. 7-68

ge and engine coolantspecified ranges. Thecked after warming updriven.n response to the oper-ings and warning lights

7-1

e the windshield wiperid and add fluid as nec-

tly or does not contactplaced.

7-55

- 9

ont’d)

Items Check points

Draining water condensa-tion from air reservoir

Open the drain cocks and drain condensation comvoir. Close the drain cocks completely.If a large quantity of water accumulates, the air dshould be repaired. Drain the condensation befooperation.

Parking brake operationApply the parking brake on an upgrade. Ensure warning light illuminates with the ignition key in ththe brake firmly operates on the wheels.

Lighting and signal system Turn all switches of the lighting and signal systemheadlights, turn signal lights, etc. operate properly.

Horn Operate the horn button to ensure the horn sounds

Meters, indicator light, warning and warning light

Check cluster meters (such as the air pressure gautemperature gauge), to ensure they register the engine coolant temperature gauge should be chethe engine sufficiently or while the vehicle is being Also check the indicator light for proper operation iation of the corresponding control. Check that warnremain off while the engine is in operation.

Windshield wiper and washer

Operate the wiper and washer switches to ensurand washer operate. Check the level of washer fluessary.If the wiper does not wipe the windshield sufficienthe windshield well, the wiper blades need to be re

Page 25: Manual Nissan Ud

3 - 10

BEFORE DRIVING YOUR VEHICLE

Reference page

e and cleanliness; clean ifhield for cleanliness; clean 11-69

f hot-air discharge from theformed especially in rainy 9-8

ration of the buckle. Also 6-5

5-1lt lock mechanism. 11-21

(Cont’d)

Items Check points

Mirror and front windshieldCheck mirrors for proper angle of view, damagdirty and replace if damaged. Check the windsif dirty.

Heater defrosterOperate the car heater to check the condition odefroster. This check should be carefully perweather.

Seat belt Fasten the seat belt to check for proper opecheck the belt for damage.

Door lock Check door locks for proper operation.Cab tilt lock mechanism Check the condition and operation of the cab ti

Page 26: Manual Nissan Ud

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BEFORE DRIVING YOUR VEHICLE

E

TRUCKS, US2010 ISSIONS SOLUTION exhaust aftertreatment system

ually eliminates exhaust smoke.ite exhaust vapor (water conden-ion) may be visible during a coldrt. If black exhaust smoke visibleing engine operation, this indi-es a problem with the exhaustrtreatment system. Take theicle to an authorized UD Trucksler immediately.icles equipped with a 2010 emis-

n compliant engine have anaust aftertreatment system which

ludes an aftertreatment Selectivetalytic Reduction (SCR) system a Catalyzed aftertreatment Die-

Particulate Filter (DPF). Theertreatment DPF takes the place

the standard muffler, and ituces soot and particulate emis-ns into the atmosphere.ot and other particulate matter arelected by a filter where it is even-lly oxidized.icles equipped with an aftertreat-

nt DPF require the use of UDXtra VDS-4) specification high perfor-

- 11

GR SYSTEM OPERATION

Overheating of the engine coulddamage the EGR system compo-nents, so have them inspected andserviced by the nearest autho-rized UD Trucks dealer.

When a certain amount of soot accu-mulates in the aftertreatment DPF,the DPF automatically goes into theregeneration mode to burn the col-lected soot. To obtain the expectedDPF performance, please observethe following precautions. The fre-quency of the occurrence of theaftertreatment DPF regenerationmode differs according to how youdrive the vehicle.

UDEMThevirtWhsatstadurcataftevehdeaVehsioexhincCaandselAftof redsioSocoltuaVehme(or

WARNING

Do not carelessly touch theEGR system components (EGRvalves, EGR adapter, EGR pip-ing, EGR cooler, coolant pip-ing, etc.) when the engine ishot, such as during operationand immediately after driving.These components are hot andtouching them could causeburns, therefore touching themis very dangerous.

CAUTIONDo not rest your feet, etc., onthe EGR system components.Doing so could damage theEGR system components.

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BEFORE DRIVING YOUR VEHICLE

The following must be observed toprevent malfunctioning of this sys-tem.

mance diesel engine oil and UltraLow Sulfur Diesel (ULSD) fuel.

HANDLING OF THE EXHAUST EMISSION CONTROL SYSTEMThe exhaust emission control sys-

tem reduces PM (Particulate Mat-ter) and NOx by collecting PMthrough the filter that is installed inthe PM reduction device and bydissolving NOx into water andnitrogen using the aftertreatmentSCR system.

When a certain amount of sootaccumulates in the DPF, the DPFsystem automatically switches intothe cleaning mode to burn (regen-erate) the collected soot. The fre-quency of the occurrence of theaftertreatment DPF regenerationdiffers according to the manner inwhich the vehicle is driven.

The aftertreatment SCR systemreduces NOx by adding a mixtureof air and diesel exhaust fluid(DEF) in the exhaust muffler tomake NOx that is included inexhaust gas and is dissolved intowater and nitrogen.

Page 28: Manual Nissan Ud

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BEFORE DRIVING YOUR VEHICLE

cautions on handling the DPF

en a certain amount of soot thatncluded in the exhaust gas accu-lates in the aftertreatment DPF, DPF automatically burns (regen-tes) the collected soot.s prevents the excessive accu-lation of soot and keeps theaning function of the DPF in gooddition. DPF automatically burns

generates) the collected soot.

WARNING

mmediately after the vehicle istopped or while the system is

n the regeneration, the arearound the muffler andxhaust gas are extremely hot.o not stop the vehicle in a

ocation where there are flam-able materials such as driedrass or paper waste.

- 13

Pre

Whis imutheeraThimucleconThe(re

IsiaeDlmg

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3 - 14

BEFORE DRIVING YOUR VEHICLE

WARNING

Do not perform manual clean-ing in a location with poor ven-tilation. Exhaust gas maycause carbon monoxide poi-soning especially in anenclosed location, such as in agarage, indoors, etc.

Do not perform manual clean-ing in a location where thereare flammable materials suchas dried grass or paper waste.The temperature of the exhaustgas and the area around theexhaust pipe and mufflerbecome high during cleaning.Therefore, if there are flamma-ble materials nearby, a fire mayoccur. In addition, never allow yourbody to contact exhaust gasand the area around theexhaust pipe and muffler.Doing so may cause burn inju-ries.If the vehicle is stopped over aroad surface that is painted,the road surface may be dis-colored.

NOTE:Depending on the driving condi-

tions, the burning (DPF regener-ation) of the soot collected inthe DPF may not be completed.When both the DPF cloggingwarning light and the indicatorlight that is built in the manualforced regeneration switchblink, press the exhaust gascleaning device switch to manu-ally clean the soot.

While operating the aftertreat-ment DPF, the engine speed atidle may increase under the fol-lowing conditions. This is due toa temperature increase of theexhaust gas in order to burn(regenerate) the collected soot.This does not indicate a mal-function.・The engine exhaust gastemperature is low for a long

period of time. (For example, theengine idles too long.)If a gear is engaged to drive thevehicle, the operation of thedevice will stop. However, if theprocessing time is not sufficientto satisfy a specified duration,the operation of the device willresume after stopping the vehi-cle.・The cleaning modeautomatically turns on whiledriving.

When the DPF clogging warning light blinks, perform the DPF regen-eration manually.When both the DPF clogging warn-ing light that is located in the combi-nation meter and the indicator lightthat is built in the manual forcedregeneration switch blink, immedi-ately perform manual cleaning of theaftertreatment DPF to burn (regener-ate) the soot that has collected.

If there are flammable materi-als around the vehicle, a firemay occur. This could causeburns from the heated exhaustgas.

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BEFORE DRIVING YOUR VEHICLE

N

ontact your nearest authorizedD dealer. or the muffler that is equippedith the SCR catalyst system, nospections and maintenance areasically required. they must be replaced by neces-ity because they are damaged,se UD Trucks genuine parts.

- 15

OTE:The engine speed increaseswhile performing manual DPFregeneration. This is due to atemperature increase of theexhaust gas in order to burn(regenerate) the collected soot.This does not indicate a mal-function.While performing manual after-treatment DPF regeneration, theaftertreatment hydrocarbondoser system supports the man-ual DPF regeneration by inject-ing fuel in the exhaust pipe.

Handling of the aftertreatment diesel exhaust fluid (DEF) dosing system

The DEF dosing system (DEFpump, DEF dosing valve) contin-ues to operate for approximately120 seconds after the ignition keyis turned to OFF position. There-fore, wait for at least 120 secondsbefore disconnecting the batterycable or electrical system connec-tors when servicing the vehicle,etc.

Handling of the muffler

The muffler that is equipped withthe aftertreatment DPF for the PMreduction device needs to becleaned regularly to maintain itsperformance (either 155,000 miles[250,000 km] or 4,500 hours,whichever comes first). This isbecause unburnable ash that isdifferent from burnable soot willaccumulate in the DPF.For details about cleaning of themuffler equipped with the DPF,

cU

Fwinb

Ifsu

CAUTIONIf driving is continued, clog-ging in the DPF or a systemmalfunction may occur.

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BEFORE DRIVING YOUR VEHICLE

Do not modify the tailpipe.

CAUTIONChanging the orientation or

length of the tailpipe coulddegrade the exhaust gascleaning effect, so do not mod-ify the tailpipe. When the con-struction of the body requiresthat the tailpipe be modified,contact the nearest authorizedUD Trucks dealer for advice.

Do not touch the water that comes from the muffler.

Do not kick or strike the muffler.

The muffler has the following char-acteristics.NOTE:The aftertreatment system

cleans and discharges theexhaust gas, so the exhaust gassmells differently than that ofconventional diesel vehicles.

Some white smoke might comefrom the exhaust pipe when theengine is started, but this is juststeam and is not a problem.

White smoke may be emittedfrom the area around the mufflerduring the soot burning (DPFregeneration) process. This isdue to the emission of watervapor from the area around themuffler, and it does not indicatea malfunction.

When manual DPF regenerationis performed while driving inrain or after washing the vehicle,water vapor may be observedaround the muffler. This doesnot indicate a malfunction.

WARNINGDo not touch the water that

comes from the muffler. Theaction of the oxidizing catalystcontained in the catalyst inte-grated muffler makes the waterslightly acidic. If it gets on theskin, etc., flush well with waterto wash it off.

CAUTIONThe muffler contains a cata-

lyst, so do not kick or strikethe muffler. Doing so coulddamage the catalyst inside.

Page 32: Manual Nissan Ud

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BEFORE DRIVING YOUR VEHICLE

Hfl

FaOthm

TE:pilled DEF should beenleaned up in accordance withcal regulation.

ly use DEF that satisfies the 22241-1 specification.nly use DEF specified by UDrucks that satisfies theO22241-1 specification.

he specified DEF is colorless anddorless (urea 32.5%, water7.5%) and begins to freeze at2.2°F (–11°C). When the ambi-nt air temperature (AAT) is lownd the vehicle has been exposed cold temperatures for a long

me, the indicator in the cab mightot show the correct DEF level.

Do not drive the vehicle whenthe DEF tank is empty. This willnot only worsen exhaust gasemissions but will prevent theengine from being startedagain. Always fill the tankahead of time to leave plenty ofleeway for driving.

- 17

andling of the diesel exhaust uid (DEF)

ill the tank with the specified mount of DEF.nly add DEF to the DEF tank at is specified by UD Trucks andeets the ISO22241-1 specification.

5.3 gal (20 liter) tank

13.2 gal (50 liter) tankNOS

clo

OnISOO

TIS

To61eatotin

CAUTION If something other than the

specified substance (diesel,kerosene, etc.) is mistakenlyadded to the DEF tank, it couldcause a fire, so have itinspected and serviced by thenearest authorized UD Trucksdealer.

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BEFORE DRIVING YOUR VEHICLE

not lose water due to evaporation,etc., so as long as the container issealed, there is no particular concernabout an expiration date.Fuel for the vehicle equipped with the aftertreatment DPFDo not use any fuel other than thespecified fuel.

CAUTION

Use ultra low sulfur diesel(ULSD) fuel only. Use of anyother fuel may adversely affectthe engine, exhaust gas clean-ing device, etc., resulting inaftertreatment DPF cloggingand so on.Refer to "Fuel requirements"on page 11-38.

Precautions for handling of the DEF<Handling Precautions>Handle in accordance with good

industrial hygiene and safety prac-tices.

Only use DEF specified by UDTrucks that satisfies theISO22241-1 specification.

Use the UD Trucks genuine part5.3 qt (5 liter) portable tank or aspecial container recommended bythe DEF dealer to hold the DEF.General containers, containersthat have been used for otherapplications, and dirty containerswill not maintain the quality of theDEF, so absolutely do not usethem.

<Temporary Measures>DEF is a very safe liquid, but it mightcause a very slight irritation for somepeople. If it is spilled on the body,wash it off with water, and if it isdrunk mistakenly, drink 1 or 2 cupsof milk. if milk is not available, drinkwater. In all case, consult physician.<When Fires or Leaks Occur>DEF is nonflammable, but quickly

move it to a safe location if there isa fire.

If DEF is spilled, wash it away withwater. It can be disposed of with-out a problem by first diluting itwith a large amount of water andthen pouring it into the sewagesystem. It must be treated asindustrial waste in areas with nitro-gen restrictions.

<Storage Method>Seal the container and store it in acovered area with good ventilation.Even if it freezes, there will be nochange in its quality after it thaws, soit can be used as is.There are no problems with deterio-ration, etc., of DEF as long as it does

Page 34: Manual Nissan Ud

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BEFORE DRIVING YOUR VEHICLE

EeD

Dth

- 19

ngine oil for the vehicle quipped with the aftertreatment PF

o not use any engine oil otheran the recommended oil.

CAUTION

To obtain the expected mainte-nance life of the aftertreatmentDPF, it is necessary to use therecommended engine oil.Refer to "Engine oil recom-mendations" on page 11-31.

Page 35: Manual Nissan Ud

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BEFORE DRIVING YOUR VEHICLE

DPF Regeneration system

Page 36: Manual Nissan Ud

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BEFORE DRIVING YOUR VEHICLE

TtiWstioa

N

Turn the power takeoff (PTO)switch off if the vehicle isequipped with a PTO.Keep the engine running.Press the manual forced regener-ation switch to activate the after-treatment DPF regeneration.DPF regenerating warning andmessage are displayed. Idling speed will increase and theexhaust brake will be activated.

WARNING

ake sure that there are nolammable materials around ornder the exhaust systemomponents.

- 21

he status of DPF soot accumula-on: Level 0hen the Level 0 indication is

hown, the manual DPF regenera-on is not required. However, theptional manual DPF regeneration isvailable.

OTE:Press the mode select switch(located on the left side knob inthe combination meter) to checkthe DPF soot accumulation levelthat will be shown with the DPFsoot level gauge.The DPF clogging warning lightmay blink when soot does notaccumulate in the DPF. This mayoccur in order to maintain theperformance of the muffler.

The status of DPF soot accumula-tion: Level 1When the DPF clogging warninglight blinks, immediately perform themanual DPF regeneration (beforethe driving distance reaches 125miles [200 km]).

Operation procedure1. Stop the vehicle at a safe place,

apply the parking brake firmlyand put the shift lever in the N(neutral) position. For automatictransmission with the P (Park)position, put the selector leverinto the P (Park) position.

2.

3.4.

Mfuc

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BEFORE DRIVING YOUR VEHICLE

The status of DPF soot accumula-tion: Level 3If the DPF system warning (Red) isilluminated, the system will reducetorque to a specified value withinapproximately 10 seconds and abuzzer will sound. In this case, theacceleration pedal cannot be oper-

CAUTIONThe DPF may be damaged if

the vehicle is continuouslydriven while at level 2. Immediately contact your near-est UD Trucks dealer forinspection.

5. Wait approximately 25 minutes.(when it is operated after theengine has already warmed up.)When the DPF regeneratingwarning is no longer displayed onthe multi-display monitor, regen-eration is completed.

NOTE:Place the manual forced regen-

eration switch to the “CANCEL”side to deactivate the cleaningoperation.

If the vehicle is driven before thecleaning is completed, the DPFclogging warning light will blinkagain.

The status of DPF soot accumula-tion: Level 2When the engine control warninglight and the DPF system warning(Amber) and message are indicated,the system restricts engine torqueand reduces engine output. Immediately contact your nearestUD Trucks dealer for inspection.

CAUTIONDo not continue driving the

vehicle while at level 1. Thesystem restricts engine torqueand reduces engine output,depending on the amount ofsoot accumulation.

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BEFORE DRIVING YOUR VEHICLE

aaVdwcsCd

hite smoke may be emitted frome surface of the exhaust muffler

the aftertreatment DPF regener-tion is operated manually in thein.This is due to the fact that waterdhering on the surface of thexhaust muffler evaporates. any fuels other than the specifiedne are used, the emission ofhite smoke may continue.lways use ultra-low sulfur dieselLSD) fuel (S15) because any

ther fuel may adversely affect oramage the engine and the DPF. exhaust gas odor will not be e as that of previous diesel icles.he odor is different because thexhaust gas is passed through aatalytic converter and cleaned.

gularly clean the aftertreat-nt diesel particulate filter (DPF)

he DPF should be cleaned every55,000 miles (250,000 km) or,500 hours, which occurs first as

- 23

ted and the engine is forced to runt the idling speed.ehicle speed is graduallyecreased to protect the engine,hich will be shut down (automati-ally stopped) when the vehicle istopping or completely stops. ontact your nearest UD trucksealer immediately.

Handling of the diesel particulate filter (DPF)

The following phenomena does notindicate trouble.The idle speed varies and the exhaust brake operates the same time.When the vehicle is stopped for a

traffic signal or other reason theengine shifts to idle running. (Auto-matic DPF regeneration is in prog-ress.)

When the engine is idled continu-ously for a long time. (The idlespeed increases from time to timeto prevent the emission of whitesmoke.)

White smoke may sometimes be emitted.White smoke may be emitted from

the end of the exhaust muffler.・This is due to the emission ofwater vapor.・This will not occur when theengine exhaust gas temperatureincreases to a sufficient level.

Wthifara・ae

IfowA(Uod

ThesamvehT

ec

Reme

T14

CAUTIONWhen the DPF system warning(red) appears, immediatelystop the vehicle in a safe loca-tion and contact your nearestUD trucks dealer.

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BEFORE DRIVING YOUR VEHICLE

VEHICLE LABELSProducts safety labels are affixed toyour UD Trucks vehicle at the fac-tory. Labels with DANGER, WARNING orCAUTION are related to safety. Youmust follow the precautions in theselabels. In addition, you must replaceany labels that have been removedor are damaged. Contact your autho-rized UD Trucks dealer or UD TrucksNorth America, Inc. for replacementlabels.

necessary to ensure proper perfor-mance.

If the DPF Maintenance warning isilluminated, the vehicle should betaken to the nearest UD Trucksdealer as soon as possible.

Use ultra-low sulfur diesel (ULSD) fuel onlyFailure to use ultra-low sulfur die-

sel fuel in this vehicle may damagethe emission related parts, violatethe EPA and CARB regulationsand possibly void the UD Trucksvehicle warranty as listed in theWarranty & Service Booklet.

Always use genuine engine oil.Always use the specified engine oil

to maintain the performance of theDPF.

Page 40: Manual Nissan Ud

4

ENTERING AND LEAVING THE CAB

ELC

Bring your right foot up to the 2ndstep.

- 1

NTERING AND EAVING THE AB

Driver’s side

1. Open door and firmly grasp therear handle behind the dooropening with your right hand.

2. Firmly grasp either the lower orupper handle on the front of thedoor opening with your left handand place your left foot on the 1ststep.

3.

WARNING

Be careful when entering orleaving cab so you don’t slipor fall.Always keep your shoe solesand hands clean. Keep the cabsteps and handles clean andfree of ice, snow, oil, greaseand/or debris. Use extra carein bad weather.Use 3 POINT CONTACT at alltimes with at least 2 feet and 1hand or 2 hands and 1 footfirmly placed during all phasesof entering or leaving the cab.

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4 - 2

ENTERING AND LEAVING THE CAB

4. Bring your left foot up to the 2ndstep next to your right foot.If you grasped the lower handlewith your left hand then moveyour left hand to the upper han-dle.

5. Step to the cab floor with your leftfoot.

6. Bring your right foot to the cabfloor.

7. Position yourself in the driver’sseat and release your left handfrom the front upper handle.

8. Close door.9. To leave the cab, open the door

and reverse the procedure forentering the cab, using bothhands on the handles.

10.For passenger side, use oppositehand and foot positions.

Page 42: Manual Nissan Ud

5

DOORS AND WINDOWS

DW

OR

eration from outside of vehicle

ening dooren opening the door from theside, pull the outside handleile pressing the push button.

king and unlockingower door lock > power door lock system allows to lock or unlock all doors simul-eously.ning the driver side door key willk or unlock both doors.

- 1

OORS AND INDOWS

Using seat belts and keeping thedoors closed and locked providesgreater safety in the event of an acci-dent. It will also help keep childrenand other from unintentionally open-ing the doors and will help keep outintruders.

NOTE:Lock the door from the inside by

pushing the door lock knob in.To lock the door from the out-side, use the ignition key orpush the inside lock knob in andclose the door while pushing inthe outside handle push button.You may want to consider carry-ing a duplicate ignition key inyour billfold in the event youlock your ignition key in the cab.

DO

Op

OpWhoutwh

Loc<PTheyoutanTurloc

WARNING

Before starting to drive, besure cab doors are securelyclosed and locked. Before opening cab door, lookfor bystanders and approach-ing vehicles.

Page 43: Manual Nissan Ud

5 - 2

DOORS AND WINDOWS

KEYLESS ENTRY SYSTEMThe keyless entry system enablesyou to lock/unlock all doors awayfrom the vehicle (approximately 3.3to 9.9 ft [1 to 3 m]) using the remotecontrol.

Operation from inside of vehicle

Opening doorWhen opening the door from theinside, pull the inside handletoward you while pushing the dooroutward

Locking and unlockingThe power door lock system allowsyou to lock or unlock all doors simul-taneously.Pushing the driver side lock knob willlock both doors. Pulling the lockknob will unlock both doors.

Page 44: Manual Nissan Ud

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DOORS AND WINDOWS

N

H

DAthbArehsDAthbaoobTu

D Trucks dealer for batteryeplacement. (The battery used a CR1620 lithium battery.)

- 3

OTE:As many as 4 remote controlscan be used. Contact an autho-rized UD Trucks dealer for pur-chasing or how to start usingadditional remote controls.

ow to use remote control

oor lock button (LOCK):ll doors will be locked by pushinge button, and the hazard lights will

link once.fter locking the doors using themote control, operate the door

andle to confirm the door has beenecurely locked.oor unlock button (UNLOCK):ll doors will be unlocked by pushinge button, and the hazard lights will

link twice. All doors will be lockedutomatically unless any door ispened within approximately 30 sec-nds after pressing the UNLOCKutton.he remote control will not functionnder the following conditions.Any door is not completely closed.The remote control is too far awayfrom the vehicle.

The battery of the remote control iscompletely discharged.

The ignition key is in the ON orACC position.

NOTE:The operating range of the

remote control depends uponthe conditions around the vehi-cle. Make sure that the remotecontrol is within 9.9 ft (3 m) fromthe door to make it surely func-tion.

Though the remote control iswaterproof, it can be damagedwhen it gets wet. If the remotecontrol gets wet, immediatelywipe it off.Contact an authorized UDTrucks dealer if the remotecontrol was washed in a wash-ing machine or if it was soakedin water for a long time.

Do not drop or strike the remotecontrol.

Do not leave the remote controlfor a long time in a hot area.

In case the remote control doesnot function when pushing abutton, the battery may be dis-charged. Contact an authorized

Uris

Page 45: Manual Nissan Ud

5 - 4

DOORS AND WINDOWS

<Opening and closing the driver’s side>The driver’s side door window switchis used to open or close the windowmanually when pushed or pulled.The window stops in its current posi-tion when the switch is released.

When children are riding in thevehicle, for safety reasons, usethe power window lock switchto lock the windows.

DOOR WINDOW (POWER WINDOW)

Open/Close switch

This switch is used to open andclose the door windows on the driverand passenger’s side. It can beoperated when the ignition keyswitch is in the ON position.

Driver’s side

Passenger’s side

WARNINGWhen closing the windows,

make sure that no one hastheir head or hands extendedoutside the window beforeoperating the switch. Notdoing so could result in some-one being pinched and injuredby the windows.

Do not leave children alone inthe vehicle. If children must beleft in the vehicle, be sure toremove the ignition key.

Page 46: Manual Nissan Ud

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DOORS AND WINDOWS

<pAsawbre

W

Wsbooth

- 5

Opening and closing theassenger’s side> passenger’s side door windowwitch is provided in both the drivernd passenger’s side doors. Theindow moves while the switch iseing pushed and stops when it isleased.

indow lock switch

hen this switch is pushed, the pas-enger’s side door window cannote opened or closed even when thepen/close switch is operated. Topen or close the window, releasee window lock.

Page 47: Manual Nissan Ud

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DRIVING POSITION

Front seat base adjustment

The front of the driver’s seat can beraised by pulling up the lever at theleft side of the seat base.To lower the seat downward, pull thelever and push down on the seat.Rear seat base adjustment

DRIVING POSITION

SEATSFore and aft adjustment

The driver’s seat can be adjustedforward and backward by pulling upon the slide lever located on the frontof the seat base and sliding the seatto the desired position. Lock the seatin place by releasing the lever. Toassure that the seat is properlylocked in place, attempt to slide theseat fore and aft with the slide leverreleased.

WARNING

To prevent loss of vehicle con-trol, never adjust the driver’sseat while driving.

Page 48: Manual Nissan Ud

6

DRIVING POSITION

TraleTleL

Tsteopfudaa

clining adjustment

Driver’s seat

Passenger seat

tilt the seatback rearward, pull up lever located on the left side of driver’s seat base (right side forsenger seat) and apply a slight

- 2

he rear of the driver’s seat can beised by pulling up the lever at theft side of the seat base.o lower the seat downward, pull thever and push down on the seat.umbar support adjustment

urn the knob on the outside of theeat toward the front so that the cen-r portion of the seatback will come

ut slightly to support the lumbarortion of the body. This may be use-l in reducing fatigue during long

istance driving. The support isdjustable continuously within thedjusting range.

Riding comfort adjustment<Up-down air suspension>This improves riding comfort byautomatically adjusting the up-downmovements of the vehicle body.<Seat with fore-aft suspension>

Riding comfort in the fore-and-aftdirection is automatically adjusted.

Operate the lever on the front sideof the seat to lock the fore-aft sus-pension of the seat.

Re

To thethepas

Page 49: Manual Nissan Ud

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DRIVING POSITION

Headrest adjustment (Passenger seat)

The height of the headrest can beadjusted manually. Adjust the head-rest height while pressing the lockknob.

force to the seatback. To return theseatback to the upright position liftup the lever while leaning forward.

Forward and backward adjustment of cushion

Adjust the cushion to the desiredposition while pushing the lever tothe right. It is possible to adjust intwo stages in the forward directionfrom the standard position.

WARNING

Seat belts are less effectivewith the seatback reclined. Toreduce the risk of slidingunder the seat belt during anaccident or sudden stop, donot recline the seatback anymore than necessary for com-fort.

Page 50: Manual Nissan Ud

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DRIVING POSITION

Tc

o not rest on or put youreight on the headrest or headf the seatback when the seat-ack is folded forward. Doingo could result in an injury or itould damage the seat.hen lowering the seat coverith items placed in the spaceade by lifting the seat cover,

arefully lower the seat toake sure that it does not

trike any of the stored items.

- 4

o make fully flat / lift up the seat ushionIn addition to being used as a reg-ular assistant seat, the seatbackcan be folded forward (made fullyflat) to form part of the bed. Theseat cushion can also be lifted upto form a work space for changingclothes, etc., or space for storage.

To lift up the seat cushion, hold thefront edge of the cushion and raiseit until the lock engages.To release the cushion to lower it,pull up the cushion lock releaselever to release the lock and thensupport the cushion by the frontedge while lowering it. There is no

lock to keep the cushion in thedown position.

The cushion is locked when theseatback is folded forward. Pull thereclining lever and lift up the seat-back. Trying to forcefully pull upthe seatback could result in aninjury or it could damage the seat.

CAUTION

Make sure that the seat cush-ion is locked in place when it israised. It is dangerous if thecushion is not locked whenraised because it could falldown. This could also damagethe seat.

Do not use it as a seat whenthe seat cushion is raised.Doing so could result in aninjury or it could damage theseat.

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DRIVING POSITION

<Driver and passenger seat belts>The driver and passenger seat beltsare equipped with an ELR (Emer-gency Locking Retractor). Thesebelts are flexible under normal condi-tions; however, they automaticallylock in an emergency. Belt lengthadjustment is not necessary.NOTE:Slowly pull out the seat belt. If

pulled abruptly, it may lock.Slowly rewind the belt while

holding the tongue.

If the driver tries to drive withoutwearing the seat belt, the warninglight will illuminate to warn the driver.If the tongue of the driver’s side seatbelt is not completely locked into thebuckle, the warning light will illumi-nate when the ignition switch isturned to ON or START.

SEAT BELTS

To fasten the belt, position the seatand fit the seat belt snugly withouttwisting. Insert the open end of thetongue into the buckle until it snapsand engages.To unfasten the seat belt, push therelease button and disengage thebelt tongue from the buckle.

WARNING

Seat belts should be worn atall times. Before fastening afront seat belt, always adjustthe driver’s seat to the positionin which you will drive. Seatbelts should be worn acrossthe hips and adjusted snugly.Never adjust a seat belt acrossthe abdomen.

Never attempt to fasten seatbelts while the vehicle is inmotion.

Never let a passenger hold achild on his or her lap whilethe vehicle is moving.The passenger cannot protectthe child from injury in a colli-sion. Children should beseated in appropriate childrestraints.

Do not wear a twisted or loosebelt.

Never use the same belt formore than one person.

Replace damaged or inopera-tive belts.

Replace belts which were inuse during an accident unlessthe accident was minor.

Do not modify the seat belts.

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DRIVING POSITION

S

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nd restrained by the seat beltsrovided.

egnant woman restraint>regnant women should checkith their doctors before using seatelts. In you are in an accident andearing a seat belt, significantressure can be exerted on thebdominal area.regnant woman should place thep belt as low as possible, overe hips and not over the waist.

- 6

eat belt warning light

Center seat belt (Optional)>

o tighten the seat belt, pull theose end toward the belt anchoragentil it fits snugly.

To loosen the seat belt, raise thefront end of the adjuster and pull thebelt.NOTE:When the seat belt is not in use,

insert the tongue into thebuckle.

<Important child restraint precautions>U.S. law requires you to use safety

restraints for children who are rid-ing in this vehicle. Many statesrequire that children use a childrestraint system that complies withthe Federal Motor Vehicle SafetyStandards. Check your local andstate laws for specific require-ments regarding the safety of chil-dren in your vehicle.

Choose a child restraint systemthat complies with federal stan-dards and fits your vehicle. Installand use it in accordance with themanufacturer's instructions.

Children who are too large for childrestraint systems should be seated

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DRIVING POSITION

Seat belt maintenance1.Clean the seat belt webbing only

with mild soap or detergent. Avoiddirect sunlight when wiping anddrying the webbing.

2.Do not bleach or dye the seat beltsthat may significantly weaken thewebbing.

3.Periodically check the seat belts,metal parts, buckles, tongues andanchors for damage and properfunction. Replace the belt assem-bly if damaged or not functional.

STEERING WHEEL

The steering wheel telescopes 2.95inches (75 mm) and tilt angle 9.5°.Position the driver’s seat beforeadjusting the steering wheel. Loosenthe lock lever and adjust the steeringwheel to the desired position. Afteradjustment, securely tighten the locklever.

WARNING

If foreign material gets into thebuckle or it becomes dirty, theseat belt might not fasten orunfasten smoothly.Protect the buckles from for-eign material or dirt.

WARNING

To prevent loss of vehicle con-trol, Do not adjust steeringwheel while driving. Tighten locklever securely after adjustment.

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INSTRUMENTS AND CONTROLS

INSTRUMENTS AND CONTROLS

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INSTRUMENTS AND CONTROLS

24. Accelerator pedal25. Transmission gear shift lever26. Parking brake valve27. Cup holder28. Engine warm-up switch29. Manual forced regeneration switch30. Power mirror switch (Optional)31. Automatic transmission

selector lever (Allison 1000, 2000and 2500 series)

32. Automatic transmission selector switch (Allison 3000 series)

33. Ashtray34. Power window switch

1. Lighting, Dimmer, Passing, Turn sig- 11. Overhead boxnal, Accelerate and resume switch, 12. Room lightSet and coast button 13. Cigarette lighter

2. Combination meter with multi-display 14. Power socketfunction 15. Fuse lid

3. Horn 16. Transmission PTO switch4. Windshield wiper, Washer, (Optional)

Hazard warning flasher and 17. Engine throttle control knobExhaust brake switch 18. Ashtray

5. Multi-display select switch 19. Power window switch6. Air suspension dump switch (UD2600 20. Front lid knob

and UD3300 equipped with air 21. Clutch pedalsuspension) 22. Ignition key switch

7. Power mode switch (Allison 1000, 23. Brake pedal2000 and 2500 series)

8. Cruise Control main switch9. Mirror heater switch (Optional)10. Heater or Air conditioner control

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INSTRUMENTS AND CONTROLS

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L

A

WARNING

bsolutely do not move theehicle with the ignition keywitch removed or with it inhe LOCK position. The steer-ng wheel could lock and pre-ent steering.o not turn the ignition key tony position other than the ONosition while driving.

f turned to the ACC position,he engine will stop, which will

ake it very difficult to turn theteering wheel and operate thelutch pedal, and the brakesill not work as well as normal.nd if turned to the LOCKosition, the steering wheelould lock and prevent steer-ng, which is dangerous.

- 3

NITION KEY SWITCH

he ignition key switch, located one right side of the steering column,

as four positions:

OCK (OFF): This is the positionthat turns off the power to theengine. It is also the positionin which the key can beinserted and removed and inwhich the steering wheel canbe locked. Turning the steer-ing wheel after removing thekey will automatically lock thesteering wheel in the fixedposition to prevent theft.

CC: This is the position used tostop the engine. It is also theposition that is used to listen

to the radio, etc., whenparked, etc., while the engineis stopped.

ON: This is the position used whenthe engine is running. Abso-lutely do not turn the ignitionkey to any other position whiledriving.In addition, if the ambient airtemperature is low when start-ing the engine, it providespower to the intake air heaterand air dryer heater.

START: This is the position used tostart the engine. The ignitionkey automatically returns tothe ON position whenreleased.Absolutely do not turn the igni-tion key to the START positionafter the engine has started.

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INSTRUMENTS AND CONTROLS

NOTE: If the ignition key is difficult to

turn when inserting it and turn-ing it to the ON position, jigglethe steering wheel back andforth while turning the ignitionkey to release the steeringwheel lock and allow the key toturn smoothly.

Engine stop

Stop the engine using the ignitionkey switch. When it is turned fromON to LOCK (OFF), the engine willstop.Also when the ignition key is turnedfrom ON to ACC, the engine willstop.

CAUTION

To avoid damage to the start-ing system, do not turn theignition key to the START posi-tion during engine operation.

If the engine should turn overin the reverse direction, oper-ate the ignition key to stop theengine. When the engine hasturned over in the reversedirection, the engine soundwill change and exhaustsmoke will be emitted from theair intake pipe.

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INSTRUMENTS AND CONTROLS

Ms might move slightly when thed to ON position. This is doneosition of the meter indicatorslfunction.

- 5

ETERS AND GAUGES NOTE:The meter indicator

ignition key is turneto detect the zero pand this is not a ma

1.2.3.4.5.6.7.

8.

Fuel gaugeSpeedometerTurn signal indicator lightsTachometerAir pressure gauge (Front)DEF gaugeIndicator and warning lightsMode select switch

9.10.

11.

12.

Multi-display monitorIllumination control rheo-stat and odo/trip change-over switchIndicator and warning lightsAir pressure gauge (Rear)

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INSTRUMENTS AND CONTROLS

Odometer (Integrating distance meter)

The odometer indicates in mile thetotal distance the vehicle has beendriven.

NOTE:The maximum display is

1,999,999 miles. Pushing the odo/trip switch

when the ignition key is in OFFposition, odometer and TRIP A/B are displayed for about 45seconds.

Speedometer

The needle indicates the vehiclespeed in miles and kilometers perhour on the speedometer. Observethe speed limit and make an effort todrive safely.

Odo/trip change-over switch

Pushing the reset knob (less than 1second) changes the odometer andtrip meter displays as follows: ODO TRIP A TRIP B ODO ... If the reset knob is pushed for morethan 1 second in the trip metermode, only the displayed modemeter will be reset. (For example, if

TRIP A is displayed, this will bereset.) NOTE:The distance after refueling the

vehicle also can be measured inTRIP B while measuring the dis-tance from the vehicle startpoint in TRIP A.

This switch is combined withthe illumination control rheo-stat.It adjusts the brightness of theinstrument cluster. It can beused when the lighting switch isset to the 1st or 2nd position.

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INSTRUMENTS AND CONTROLS

T(I

TouTeBT9s“0

N

hometer

needle of the tachometer indi-es the engine speed in revolu-s per minute.he green zone is a guide for eco-omical driving. Drive in the greenone as much as possible to con-erve fuel.he red zone shows the overrunperation zone. Be careful that thedicator does not enter the red

one.ed zone is more than 2,600 rpm.hen the engine rpm exceeds the

llowable maximum rpm, a warn-g message will be displayed toarn the driver.

- 7

rip meterndividual trip distance meter)

he trip meter indicates the distancef individual trips in miles. (The fig-re shown at right is in 0.1 mile unit.) he trip meter can register two differ-nt trip distances; TRIP A and TRIP.he trip meter A and B displays up to999.9 miles. When the distanceurpasses this amount, it returns to”.

OTE:To reset the trip meter, keeppushing the reset knob until themeter displays “000.0”. Afterresetting, release the knob tostart measuring. The odometer

and another trip meter continuemeasuring.

Hour/Trip hour meter

Indicates the operating time of theengine.

The trip hour meter will be reset to0 when the mode select switch ispressed more than 1 second.

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INSTRUMENTS AND CONTROLS

WARNING

If the air pressure gauge indi-cator is in the red zone andeither the warning light illumi-nates or the warning buzzersounds, stop driving the vehi-cle. Not doing so could lead tothe brakes not working.

Do not drive until the air pres-sure gauge indicator showsthe normal air pressure.

Air pressure gauge

This gauge shows the air pressure inthe air reservoir.If the indicator shows the standardair pressure while driving, this is nor-mal.Normal air pressure is: 102 - 121 psi (706 - 834 kPa) (7.2 - 8.5 kgf/cm2)

CAUTIONPlease do not exceed the maxi-

mum allowable rpm. Drivingbeyond this range over-stresses the engine compo-nents and could cause theengine to malfunction.

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INSTRUMENTS AND CONTROLS

E(E

Tc

WARNING

f the cap is removed withoutllowing the pressure insidehe cooling system to drop,ou could be burned by hotteam or hot water, so be veryareful when opening the cap.

CAUTION

o not suddenly stop thengine when it has overheated.oing so could cause thengine to seize up. eep the engine idling until thengine coolant temperatureECT) drops before turning offhe engine.

- 9

ngine Coolant Temperature CT) gauge

his gauge indicates the engineoolant temperature (ECT).

When the gauge indicates nothing,the ECT is very cold.When the gauge indicatesbetween 1 to 8 point, the ETC isnormal. When the ECT becomes highwhile another screen is displayedon the multi-display, a beep willsound twice and the display willautomatically change to the ECTgauge (except when other warn-ings are displayed).

If the coolant temperature signifi-cantly increases, an overheatwarning with a 2-phase indication(amber: moderate, red: severe) willappear.

it is recommended to idle theengine until the ECT drops, thenstop the engine and check theengine coolant level (ECL), andthen inspect the cooling system forleaks.

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INSTRUMENTS AND CONTROLS

DEF empty

If the level of DEF becomes empty,the DEF warning light blinks. The25% of engine torque reduction issimultaneously performed.

Diesel exhaust fluid (DEF) gauge

The DEF gauge indicates theapproximate amount of DEF in theaftertreatment DEF tank.When the ignition key is turned

OFF position, the indicator returnsto E.

F denotes FULL, and E denotesEMPTY. Add DEF before the indi-cator reaches E.

Low level

When the level in the aftertreat-ment DEF tank is low, a warningmessage will be displayed and awarning light will illuminate to warnthe driver.

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INSTRUMENTS AND CONTROLS

D

CAUTION

nce the DEF Trigger ischieved, the vehicle will beimited to 5 mph (8 km/h) afterefuel up to the measurablemount, or keeping zero vehi-le speed for 20 minutes withngine off or idle.

- 11

EF empty + 1 hour

1 hour after the DEF becomesnearly empty, the engine controlwarning light illuminates, the 40%of engine torque reduction is per-formed.

True empty & Speed limit

Furthermore, if the warningchanges to the engine controlwarning, vehicle speed isrestricted to 5 mph (8 km/h).

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INSTRUMENTS AND CONTROLS

Fuel gauge

The fuel gauge indicates the approx-imate amount of fuel in the fuel tank. When the ignition key is turned

OFF position, the indicator returnsto E.

F denotes FULL, and E denotesEMPTY. Add fuel before the indica-tor reaches E.

If regenerate the DPF when thefuel gauge indicates less than E,engine system malfunction mightbe detected.In this case, refill the fuel andregenerate DPF again, and thenconfirm that this malfunction issolved.

Engine oil pressure gauge

This gauge shows the engine oilpressure.The range of 29 to 67 psi (200 to

460 kPa) (2.0 to 4.7 kgf/cm2) isshown while the engine is running. The pressure could exceed thestandard pressure when the oil iscold, but it will return to the stan-dard pressure when the enginewarms up.

If the engine oil pressure dropsbelow the specified pressure, theengine oil pressure warning with a2-phase indication (amber: moder-ate, red: severe) will be displayedto notify the driver.

For more information regarding thewarning, refer to “Warnings”.

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INSTRUMENTS AND CONTROLS

V

Ttisecru

gine oil temperature gauge

s gauge shows the engine oilperature.he range of 194 to 257 °F (90 to25 °C) is shown while the engine running. the engine oil temperaturexceeds the specified tempera-re, the engine oil temperaturearning a 2-phase indicationmber: moderate, red: severe) will

e displayed to notify the driver.or more information regarding thearning, refer to “Warnings”.

- 13

oltmeter

his meter operates when the igni-on key is in the ON position, and ithows the battery voltage when thengine is stopped and the generatorharge voltage when the engine isnning. The normal value is 12V when theengine is stopped and 14V when itis running.When charging is not possiblewhile the engine is running, thecharge warning is displayed tonotify the driver of the malfunction.For more information regarding thewarning, refer to “Warnings”.

NOTE:This will not decline below the

battery voltage while drivingeven if charging is insufficientor inoperable. Always be con-scious of the meter indicatorand check the state of charging.

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INSTRUMENTS AND CONTROLS

DPF Soot level gauge

Indicates the soot accumulationlevel in the diesel particulate filter(DPF).

For details on the diesel particulatefilter (DPF), refer to the “DPF sys-tem” section in “INSTRUMENTSAND CONTROLS”.

For details on how to display thegauge, refer to the “Multi-displaymonitor” section.

DPF ash level gauge

Indicates the ash accumulationlevel in the diesel particulate filter(DPF).

For details on the DPF ash levelgauge, refer to the “Regular main-tenance for the DPF system” sec-tion in “VEHICLE SERVICE ANDMAINTENANCE”.

For details on how to display thegauge, refer to the “Multi-displaymonitor” section.

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INSTRUMENTS AND CONTROLS

MTsd

multi-display monitor displays following information: enginelant temperature gauge, calen-, engine oil pressure and temper-re gauges, voltmeter, DPF soot ash level gauges, operation con- display, several maintenance inspection items. Furthermore,er setting items such as date andguage are displayed. If neces-y, the multi-display warns theer with display items that include

rnings and warning messages.

- 15

ULTI-DISPLAY MONITORhe multi-display monitor showseveral kinds of information in eachisplay area.

MTM specification vehicles:The left area of the monitor displays a calendar and the time.ATM specification vehicles:The left area of the monitor dis-plays ATM select positions, over-drive off (Allison 1000, 2200, 2500series) and power mode (Allison3000 series).The center area of the monitor dis-plays warnings and icons.The right area of the monitor dis-plays warning messages that oper-ate simultaneously with icons andseveral multi-gauges.The ODO area displays the ODOmeter and other operational mes-sages.

MTM specification vehicles

ATM specification vehicles

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INSTRUMENTS AND CONTROLS

The screens of the multi-display monitor can be toggled as follows.

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INSTRUMENTS AND CONTROLS

Cd

While settingBriefly press the

button (less than 1 second)

Press and hold the button (more than 1

second)The value is

increased by 1The value is continu-

ously increased

The digit shifts up The screen returns to normal

The digit shifts down

The screen returns to normal

- 17

hanging the screen of the multi-isplay monitorThe initial screen is displayedwhen the ignition key is turned tothe ON position.

The initial screen changes to thenext screen after 2 seconds.After the initial screen display dis-appears, a warning cannot be dis-played on the screen for 10seconds in order to display thegauge.

Normal modeBriefly press the

button (less than 1 second)

Press and hold the button (more than 1

second)

MODE Mode change Go to settings

SELECT Change in order Go to settings

RETURNChange sub-

screens in reverse order

Go to settings

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INSTRUMENTS AND CONTROLS

<Clock/Calendar display (ATM specification vehicles)>

<Engine oil pressure, Engine oil temperature gauge display>

NOTE: Inputting and modifying an item

cannot be done while a warningis displayed.To input or modify an item whilethe warning is displayed, pressthe mode select switch for lessthan 1 second so that the warn-ing display can be temporarilycancelled.The screen will return to thewarning display approximately60 seconds after the modeselect switch is pressed.

Setting is not available whiledriving the vehicle.Park the vehicle in a safe loca-tion, and then perform settingssuch as calendar change or datainput.

EACH SCREEN DISPLAY AND VALUE INPUT METHOD

<Engine coolant temperature gauge display>

<DPF soot level gauge display>

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INSTRUMENTS AND CONTROLS

<

<

the monitor is displaying a warn-g indicator, the operation controlotice will not interrupt the warningdicator display. However, whene mode switch is pressed to

hange the display or the warningdicator display is cancelled, theperation control notice will inter-pt and blink for 14 seconds.

the ignition key is turned to theFF position while the noticeppears and blinks, the notice willsume the next time the ignition

ey is turned to the ON position.TE:henever the select switch ore return switch is turned forore than 1 second while oper-

ting, the display will return toe normal screen.

he cursor returns to the thou-ands digit after the ones digit.he indicated remaining drivingistance may be different frome one that is displayed on tripeter A or B.etting is not available whileriving the vehicle.ark the vehicle in a safe loca-

- 19

Voltmeter display>

Trip management display>

To change the display to the dis-tance setting screen, push themode select switch or the selectswitch for more than 1 second orturn the return switch for more than

1 second while the operation con-trol screen is displayed. A cursorwill be displayed on the thousandsdigit.

Press the mode select switch tochange a number.

Press and hold the mode switch tocontinuously increase a number.

Turn the select switch or returnswitch to move the cursor.・The distance can be set by 1 milewithin the range of 0 to 5,000miles.・The remaining driving distance isdecreased by 1 mile.

Set the distance to “0” to reset theoperation control function.

When the remaining driving dis-tance reaches 50%, 10% or 0% ofthe set distance, a notice willappear on the screen and blink 14times.While the monitor displays ascreen other than the operationcontrol screen, an operation con-trol notice will interrupt the screenand blink for 14 seconds.

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INSTRUMENTS AND CONTROLS

<DPF ash level gauge display>

tion, and then input the dis-tance.

<Hour meter display>The hour meter indicates the totalrunning time of the engine at a des-ignated engine speed. This helpsdetermine maintenance and inspec-tion intervals.

The hour meter continuouslycounts and displays up to 199999hours.The minimum unit is 1 hour.

The trip hour meter displays up to999.9 hours, and then returns to0.0 hours.The minimum unit is 0.1 hour (6minutes).

When the mode switch is pressedfor more than 1 second while thehour meter is displayed, the triphour meter is reset to “0.0”.

NOTE:The trip hour meter indicates

000.0 while resetting.The trip hour meter does not

count while resetting.

<Maintenance and inspection dis-play>When turning the select switch (for

less than 1 second) while themaintenance and inspection dis-play appears, the ash level gaugeis displayed. Then, when turningthe switch more (for less than 1second), the general maintenanceand inspection screen is displayed.

For details on the DPF ash levelgauge, refer to the "Regular main-tenance for the DPF" on page 11-70.

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INSTRUMENTS AND CONTROLS

<ti

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gine belt

olant

- 21

Several maintenance and inspec-on screen displays>

ngine oil

ransmission oil

Differential oil

Tire

En

Co

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INSTRUMENTS AND CONTROLS

User setting 2

User setting 3

To change the display to the inputscreen of the periodic replacementintervals, push the mode selectswitch or the select switch for more

Air cleaner element

Fuel filter

Air dryer

User setting 1

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INSTRUMENTS AND CONTROLS

TE:henever the select switch ore return switch is turned forore than 1 second while oper-

ting, the display will return toe normal screen.

he number of the set distancer replacement may be differentom the one that is displayedn the trip meter A or B.etting is not available whileriving the vehicle.ark the vehicle in a safe loca-on, and then input the replace-ent interval.

ttings display>

- 23

than 1 second or turn the returnswitch for more than 1 secondwhile the maintenance and inspec-tion screen is displayed. A cursorwill be displayed on the year posi-tion.When the mode select switch ispressed, the number is changed.・The date can be set as follows. Year: 2008 to 2038Month: January to DecemberDay: 1 to 31・The distance can be set by 1 mile within the range of 1 to 6 digits (from 0 to 999,999 miles).・The remaining driving distance is decreased by 1 mile.When the mode select switch ispressed and held, the number iscontinuously increased.When the select switch or thereturn switch is turned, the cursoris moved.・The cursor returns to the distanceposition after the date position.When the remaining driving dis-tance reaches “0” (the vehicle has

been driven for the set distance) orthe set date comes, a warning andan item to be replaced are dis-played while the parking brake isapplied.

To reset the maintenance andinspection display, set the distanceto “0” or set the date to the presentor the past date.

The remaining driving distance ispreliminarily set to 600 miles in theuser setting 1 as a factory defaultsetting.Contact the nearest authorized UDTrucks dealer for the 600 milesinspection.

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INSTRUMENTS AND CONTROLS

than 1 second in the clock settingmode, the minutes of the clock willchange to "00" and the display willreturn to the normal screen.・When the minutes are in the 00 to29 range, the minutes will be resetto “00”.・When the minutes in the 30 to 59range, the hour will advance by 1hour and the minutes will be resetto “00”.

<Calendar and clock display>

To set the calendar and clock dis-play, press the mode select switchor the select switch for more than 1second or turn the return switch formore than 1 second while the cal-endar and clock display is shown.A cursor will be displayed and blinkon the year position.

Clock display: AM 12:00 - 11:59 PM 12:00 - 11:59

Press the mode select switch whilethe cursor blinks to change thenumber.

Press and hold the mode selectswitch to continuously increase thenumber.

Turn the select switch or returnswitch to move the cursor.

When the odo/trip switch locatedon the right side is pressed for less

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INSTRUMENTS AND CONTROLS

N

hile operating, the display willturn to the normal screen.

anguage can be selected fromnglish, Chinese and Japanese.TE:etting is not available whileriving the vehicle.ark the vehicle in a safe loca-on, and then select a language.

- 25

OTE:Whenever the select switch orthe return switch is turned formore than 1 second while oper-ating, the display will return tothe normal screen.The cursor returns to the yearposition after the minute posi-tion.Setting is not available whiledriving the vehicle.Park the vehicle in a safe loca-

tion, and then input the time anddate.

<Language setting screen>

To select language, push the modeswitch or the select switch for morethan 1 second or turn the returnswitch for more than 1 secondwhile the language setting screenis displayed. Press the modeswitch to select a language. Theselected language will blink.

When the mode switch or theselect switch is pressed for morethan 1 second or the return switchis turned for more than 1 second

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CAUTION

When setting the clock on thecalendar and clock display,always place the shift lever(MTM) or selector (ATM) in theneutral position. The combina-tion meter is equipped with theshift recognition function thatautomatically recognizes thetransmission specificationwhile setting the clock.If the clock is set while thetransmission is shifted in the R(Reverse) position, the shiftindicator may not be displayedcorrectly.

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INSTRUMENTS AND CONTROLS

e system nction Engine system

warning 7-38ct Dealer (or at Dealer)unication line Engine communica-

tion malfunction warning

7-40 at Dealer

ank is emptyDEF low level warning (True empty & Speed limit)

7-10le speed

ll DEF tankicient DEF y or failure

DEF insufficient quality warning(Initial detected)

7-34

ct Dealericient DEF y or failure DEF insufficient

quality warning(1 hour after)e is derated

ct Dealericient DEF y or failure DEF insufficient

quality warning(4 hours after)

le speed

ct Dealer

Name PageMessage

WARNINGS AND INDICATORS

Multi-display

DisplayName Page

Mark Color Message

Red or Amber

Engine overheatOverheat warning 7-9

12-1Reduce coolant temp

Amber

DEF level low DEF low level warning (Low level)

7-10

Re-Fill DEF TankDEF tank near empty DEF low level

warning (Near empty)

Engine is deratedRe-Fill DEF tankDEF tank is empty DEF low level

warning (True empty))

Before Re-FuelingRe-Fill DEF tank

Red Reduce engine revolution

Engine overrun warning 7-31

Red

Charging system error

Charge warning 7-32Check generator beltContact Dealer

Red or Amber

Engine oil pressure is low Engine oil pressure

warning 7-32Contact Dealer (or Check at Dealer)

Red or Amber

Engine oil temp too high Engine oil tempera-

ture warning 7-37Reduce engine oil temperature

Red or Amber

EnginmalfuContaCheck

Amber

CommerrorCheckDEF tVehiclimitedRe-Fi

Amber

InsuffqualitContaInsuffqualitEnginContaInsuffqualitVehiclimitedConta

DisplayMark Color

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INSTRUMENTS AND CONTROLS

Mrheat Starter overheat

warning 10-4eration PTO engine start

interrupt warning 10-4rt is not

ion oil igh ATM fluid

temperature warning 7-41l rem error ATM system

warning 7-42ealertem

nDPF system warning 3-22

7-74aler (or ealer)

enerating DPF regenerating warning

3-217-72

ion disabled

DPF regeneration restriction warning 7-72

enance DPF maintenance warning

3-2311-71ealer

e shut Idle shutdown information 10-38

- ATM O/D OFF indicator light 7-52

- ATM Power mode indicator light 7-52

Name Pageage

- 27

Amber

Insufficient DEF quality or failure

SCR system tamper-ing warning(Initial detected)

7-35

Contact DealerInsufficient DEF quality or failure SCR system tamper-

ing warning(1 hour after)Engine is derated

Contact DealerInsufficient DEF quality or failure SCR system tamper-

ing warning(4 hours after)

Vehicle speed limitedContact Dealer

AmberEngine system malfunction SCR system fault

warning 7-37Check at Dealer

Red or Amber

Vehicle electrical sys. malfunction Vehicle electrical

system malfunction warning

7-39Contact Dealer (or Check at Dealer)

AmberCommunication line error

Vehicle electrical system communica-tion malfunction warning

7-40Check at Dealer

AmberCommunication line error

Meter communica-tion malfunction warning

7-39Check at Dealer

Amber “Item to be replaced”Maintenance and inspection screen display

7-23

Amber PTO is in operation Transmission PTO indicator 7-64

DisplayName Page

ark Color Message

Amber Starter oveWaiting tim

AmberPTO is opeEngine stapossible

RedTransmisstemp too hReduce oitemperatu

Red ATM systeCheck at D

Red or Amber

Engine sysmalfunctioContact DeCheck at D

Amber DPF is reg

Amber Regeneratsystem is

Amber DPF maintCheck at D

IDLESTOP Amber Auto engin

downO/D OFF Amber

POWER Amber

DisplayMark Color Mess

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7 - 28

INSTRUMENTS AND CONTROLS

15 Spare

16 Spare

17Exhaust gas high temperature indicator light

7-50

18 Spare

19 Engine coolant level warning light 7-45

20 Tilt lock warning light 7-48

21 Cruise control “ON” indicator light 7-60

22Cruise control “SET” indicator light

7-60

23 Parking brake warning light 7-47

24 Brake warning light 7-47

25 ABS warning light 7-44

No Tell mark Name Page

Warning and indicator lights

No Tell mark Name Page

1Left turn signal and hazard indi-cator light

7-51

2 HIGH beam indi-cator light 7-52

3Right turn signal and hazard indi-cator light

7-51

4 Seat belt warning light 6-6

5 Spare

6 Spare

7 Spare

8 Spare

9 DEF low level warning light 7-10

10 Engine control warning light 7-43

11 Spare

12 Spare

13 DPF clogging warning light

3-217-70

14 Intake air heater indicator light 7-51

No Tell mark Name Page

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7

INSTRUMENTS AND CONTROLS

2

2

2

2

3

3

3

3

3

3

3

N

- 29

6 Spare

7 Exhaust brakeindicator light 7-51

8 Spare

9 ATM shift limit warning light 7-49

0 ATM maintenance information light 7-50

1 Spare

2 Spare

3 Spare

4 Spare

5 Spare

6 Spare

o Tell mark Name Page

37 Spare

38 Spare

39 Spare

40 Spare

41 Air pressure warning light 7-43

No Tell mark Name Page

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7 - 30

INSTRUMENTS AND CONTROLS

rmittent sound No.11. the intermittent buzzer of No.12 or

RemarksWarning light and synchronizing Warning message and synchronizingWarning light and synchronizing

Warning message and synchronizing

Warning light and synchronizing

Warning message and synchronizing

Select position “R” andsynchronizingDisplay switchingtiming

BUZZERS

Buzzer list in cabin

When multiple warnings occur at the same time.When two warnings from No.5 to 10 occur at the same time, it changes to inteIf the No.12 or No.13 warning occurs while the meter buzzer is sounding,No.13 is given priority.

No. Warning item Portion Pattern1 Low air pressure

In cabin Continuous sound

2 Brake

3 ATM fluid temperature

4 Tilt lock

5 Engine system

In combination meter

Continuous sound

6 Engine oil pressure7 Overheat

8 Engine coolant level

9 Engine oil temperature10 DPF system

11 Multiple inputs Intermittent sound 1(short intermittent sound)

12 ATM reverse Intermittent sound 2(normal intermittent sound)

13 Interrupting buzzer on engine coolant temperature gauge

Intermittent sound 3(intermittent sound twice)

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7

INSTRUMENTS AND CONTROLS

WWdinmw

N

CAUTION

lease do not exceed the maxi-um allowable rpm. Driving

eyond this range over-tresses the engine compo-ents and could cause thengine to malfunction.

- 31

ARNINGShen necessary, the multi-display

isplays warnings while also display-g a warning message and com-ents in order to warn the driver, orarning lights are illuminated.

The basic pattern for the warningdisplay contents is given below.

OTE:The multi-display also displayswarning messages, comments,a calendar, clock, trip manage-ment, inspection and servicingmessage display, range selectposition (ATM specificationvehicles) in addition to warningdisplays.

Engine overrun warning

When the engine rpm exceeds themaximum allowable rpm, the warn-ing and warning message displaywill turn on to warn the driver.

The tachometer’s red zone showsthe overrun speed range, so makesure that the indicator does notenter the red zone.

Pmbsne

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INSTRUMENTS AND CONTROLS

Engine oil pressure warning

If the engine oil pressure decreasesbelow a specified pressure while theengine is running, an amber warning(moderate), a warning message andcomments will be displayed.If the engine oil pressure decreasesfurther, the color of the warning willturn red (severe), and at the sametime a buzzer will sound to warn thedriver.

When this warning message is dis-played, immediately stop the vehi-cle in a safe location, stop theengine, and check the engine oillevel and look for oil leaks.

If there is an oil leak or other prob-lems, the vehicle must beinspected and repaired. Contactthe nearest authorized UD Trucksdealer.

Charge warning

If a problem occurs with the chargingcircuit while driving, the warning,warning message, and commentswill be displayed to warn the driver.

Immediately stop the vehicle in asafe location, stop the engine, andcheck the generator drive belt ten-sion and check for damage to thebelt.

If the belt is properly tensioned, thecharging system could be faulty, socontact the nearest authorized UDTrucks dealer. If the charging isinsufficient, refer to the EmergencyStarting items in “JUMP START-ING”.

CAUTION

Do not drive while the warningdisplay is shown. Doing socould result in damage to theelectronic components due toover-voltage or a dischargedbattery.

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INSTRUMENTS AND CONTROLS

F low level warning

en the level of DEF in the tank is, this warning and warning mes-e are displayed and a warningt illuminates to warn the driver.

dd the specified DEF as soon asossible when this warning is dis-layed.

- 33

DE

Whlowsagligh

App

WARNING

Be careful not to get burnedduring inspections conductedimmediately after drivingbecause the engine oil is stillvery hot.

CAUTION

The engine protection func-tion may provide torque derat-ing to prevent the engine frombeing damaged, so have itinspected and serviced by thenearest authorized UD Trucksdealer.

Absolutely do not drive whilethe warning display is shown.A drop in the oil pressurecould cause the engine toseize up.

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INSTRUMENTS AND CONTROLS

Initial detected + 1 hour1 hour after an insufficient DEF qual-ity is detected, engine torque isreduced by 25%.

NOTE:Try to add DEF ahead of time so

that the tank does not becomeempty.

After the ignition key is turnedto the ON position, the DEF lowlevel warning light will be illumi-nated for about 1 seconds tocheck the system.

DEF insufficient quality warning

When refilling the DEF tank with liq-uid other than the specified DEF, thewarning, warning message andwarning light illuminate. When thewarning illuminates, drain the liquidthat was used to refill the tank, andrefill again using the specified ureawater solution.

Initial detectedOnce an insufficient DEF quality isdetected, a warning will be dis-played, and a warning light will beilluminated to warn the driver.

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7

INSTRUMENTS AND CONTROLS

In4qrev(8ukmetore

R system tampering warning

R system is designed to be tam- resistant.en the SCR system malfunctions to the following causes, this

rning and warning message areplayed and the warning light illu-ates.isconnected DEF tank level ensorlocked DEF line or dosing unitisconnected DEF dosing unitisconnected DEF pumpisconnected SCR wiring harnessisconnected NOx sensorisconnected exhaust tempera-re sensorisconnected DEF temperatureensor

- 35

itial detected + 4 hours hours after an insufficient DEFuality is detected, engine torque isduced by 40%. Furthermore, the

ehicle speed is restricted to 5 mphkm/h) when diesel fuel is refueled

p to measurable level, or aftereeping zero vehicle speed for 20inutes with engine off or idle. How-ver, by first restart or with serviceol DTC cleaning, engine torque iscovered to 25% decrease.

NOTE:Only use DEF specified by UD

Trucks that satisfies theISO22241-1 specification.

SC

SCperWhduewadisminD

sBDDDDD

tuD

s

CAUTION

These warning messages aredisplayed, contact the nearestauthorized UD Trucks dealerfor inspection and mainte-nance.

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7 - 36

INSTRUMENTS AND CONTROLS

Initial detected + 4 hours4 hours after a tampering isdetected, engine torque is reducedby 40%.Furthermore, the vehicle speed isrestricted to 5 mph (8 km/h) whendiesel fuel is refueled up to measur-able level, or after keeping zero vehi-cle speed for 20 minutes with engineoff or idle.

Initial detectedOnce a tampering is detected, awarning will be displayed, and awarning light will be illuminated towarn the driver.

Initial detected + 1 hour1 hour after a tampering is detected,engine torque is reduced by 25%.

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7

INSTRUMENTS AND CONTROLS

gine oil temperature warning

en the engine oil temperatureeeds a specified temperature, anber warning (moderate), a warn- message and comments are dis-yed.the engine oil temperature

reases further, the color of therning will turn red (severe), and at same time a buzzer will sound torn the driver.

mediately stop the vehicle in aafe location and continue fastling until the engine oil tempera-re drops.fter the engine oil temperaturerops, stop the engine and checke engine oil level, and look for

ngine oil leaks. the engine oil temperature doesot decrease, have the systemspected and serviced by theearest authorized UD Trucksealer.

- 37

SCR system fault warning

When the SCR system fault, thiswarning and warning message aredisplayed and the warning light illu-minates to warn the driver.

En

WhexcamingplaIf incwathewa

Imsidtu

Adthe

Ifninnd

CAUTION

These warning messages aredisplayed, contact the nearestauthorized UD Trucks dealerfor inspection and mainte-nance.

CAUTION

This warning message is dis-played, contact the nearestauthorized UD Trucks dealerfor inspection and mainte-nance.

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INSTRUMENTS AND CONTROLS

Engine system warning

When the engine system malfunc-tions due to the following causes, anamber warning (moderate), a warn-ing message and comments are dis-played.If a malfunction becomes moresevere, the color of the warning willturn red (severe), and at the sametime a buzzer will sound to warn thedriver.

Engine control system malfunctionDPF system malfunction

WARNING

Be careful not to get burnedduring inspections conductedimmediately after drivingbecause the engine oil is stillvery hot.

CAUTION

The engine protection func-tion may provide torque derat-ing to prevent the engine frombeing damaged, so have itinspected and serviced by thenearest authorized UD Trucksdealer.

Do not continue driving whenthe warning is displayed andthe buzzer sounds.

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INSTRUMENTS AND CONTROLS

ter communication malfunction rning

en the meter communication mal-ctions, a warning, a warning mes-e and comments are displayed.en this warning appears, the fol-ing will or may occur.

ems that use CAN communica-on such as the tachometer,ngine oil pressure gauge, warn-gs for engine, etc. may not workroperly. the engine control warning lightluminates, all communicationsith the vehicle will stop.

- 39

Vehicle electrical system malfunction warning

When the vehicle electrical systemmalfunctions due to followingcauses, an amber warning (moder-ate) or red warning (severe), a warn-ing message and comments aredisplayed.Accelerator pedal position (APP)

sensor malfunctionPower relay malfunctionSwitch malfunction

This warning message is dis-played, have it checked at thenearest authorized UD Trucksdealer.

Mewa

WhfunsagWhlow

Ittieinp

Ifilw

CAUTION

Do not drive while the enginesystem warning is displayed.The engine protection func-tion may provide torque derat-ing to prevent the engine frombeing damaged, so have itinspected and serviced by thenearest authorized UD Trucksdealer.If the engine stops or is clearlyproducing an abnormal soundor vibration, contact the near-est authorized UD Trucksdealer.

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INSTRUMENTS AND CONTROLS

Vehicle electrical system communication malfunction warning

When the vehicle communicationmalfunctions, a warning, a warningmessage and comments are dis-played.When this warning appears, the fol-lowing will occur.

No warnings related to the vehicleelectrical system will appear.

This warning message is dis-played, have it checked at thenearest authorized UD Trucksdealer.

This warning message is dis-played, have it checked at thenearest authorized UD Trucksdealer.

Engine communication malfunction warning

When the engine communicationmalfunctions, a warning, a warningmessage and comments are dis-played.When this warning appears, the fol-lowing will occur.

No warnings related to the enginewill appear.

Engine control warning light willilluminate.

This warning message is dis-played, have it checked at thenearest authorized UD Trucksdealer.

Page 94: Manual Nissan Ud

7

INSTRUMENTS AND CONTROLS

A

Ifpthcw

perate the engine at a fast idleith the throttle control knobcated to the left of the steering

olumn.le the engine until the engine

oolant temperature (ECT) gaugeeedle points to the middle of theauge.hile idling the engine, check the

uid level. If the level is on the lowide of the HOT band, add fluidrough the filler tube. Do not over-

ll. the warning light still remains on,top the engine. Have the trans-

CAUTION

ilures to take the followingecautions may result in seri-s transmission damage:

hen the warnings are dis-layed and a warning buzzer isounding, do not stop thengine until you have per-ormed steps 2-5.ever operate the vehiclehen the warnings are dis-layed.

- 41

TM fluid temperature warning

automatic transmission fluid tem-erature rises above 250°F (121°C),e warning, warning message and

omments are displayed and thearning buzzer will sound.

1.When the warnings are displayedand the warning buzzer sounds,immediately move the vehicle to asafe place. Apply the parkingbrake and shift the transmission tothe neutral position.

2.Owloc

3.Idcng

4.Wflsthfi

5.Ifs

CAUTION

If the warning, warning mes-sage and comments are dis-played and the buzzer sounds,stop the vehicle and operatethe engine at fast idle until thefluid temperature returns tonormal. Do not stop the engineimmediately. If the warningsremains on, have the transmis-sion and cooling systemchecked and repaired. Do notoperate the vehicle.

FaprouW

psef

Nwp

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7 - 42

INSTRUMENTS AND CONTROLS

2.When a malfunction occurs andshifting becomes impossible in theN position, turn the ignition key toOFF position to stop the engineand restart it. When malfunction isintermittent, the TCM resets anddriving becomes possible.

3.If the warnings still remains on,stop the engine. Have the trans-mission checked by an authorizedUD Trucks dealer.

CAUTION

When a vehicle is stopped andengine speed is raised for along time with the gear shiftedto other than the N position,fluid temperature increasesand the transmission will bedamaged. Do not keep theengine in that circumstancemore than 30 seconds.

mission checked by an authorizedUD Trucks dealer.

ATM system warning

The automatic transmission systemwarning, warning message and com-ments will be displayed when thetransmission control module (TCM)detects a malfunction.

1.The automatic transmission sys-tem warnings will be displayedwhen the TCM detects a malfunc-tion. At this time a diagnostic trou-ble code (DTC) is set in the TCMand transmission cannot beshifted. Depending on the malfunc-tion, the TCM does not respond togear shifting operation and the cur-rent gear is fixed.

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INSTRUMENTS AND CONTROLS

WIN

A

Ifmzaththb

R

gine control warning light

s warning light illuminates when ablem occurs in the engine controltem.his light turns off after about 16econds or engine is started ande system is normal.

hts that illuminate when the igni- key is turned to the ON posi-.

peration status When normal

When abnormal

nition key ONefore start the

engine

ON(about 15 seconds)

-

ngine running d Engine stall OFF ON

- 43

ARNING AND DICATOR LIGHTS

ir pressure warning light

the air pressure drops and theeter indicator falls below the red

one, the warning light will turn onnd the buzzer will sound to warne driver. The buzzer will stop whene vehicle stops and the parking

rake is pulled to the park position.

ed zone: 78 psi (539 kPa) (5.5 kgf/cm2) or less.

If the warning light illuminates,immediately stop the vehicle in asafe location and leave the engineidling to increase the air pressure.If the warning light does not turn offeven though idling is continued,contact the nearest authorized UDTrucks dealer.

En

ThiprosysT

sth

Ligtiontion

WARNING Immediately stop driving if the

low air pressure warning lightilluminates, the warning buzzersounds, or the air pressuregauge indicator is in the redzone. Not doing so is very dan-gerous because the brakes,clutch, or gearshift could stopworking.

Immediately stop the vehicle ina safe location when this warn-ing light illuminates. Continu-ing to drive in this conditioncould cause the spring braketo operate, which would makedriving impossible.

O

Igb

Ean

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INSTRUMENTS AND CONTROLS

ABS warning light

The warning light comes on whenthere is an abnormality in the ABS(Anti-lock Brake System). Under nor-mal operation, the warning lightcomes on with the engine stoppedand the ignition key turned to the ONposition. The warning light goes outafter about 3.0 seconds if there is nomalfunction in the ABS.

NOTE:When the amount of aftertreat-

ment diesel exhaust fluid (DEF)

is empty (the level is zero) andthe engine control warning lightilluminates, add DEF. However,the engine control warning lightmay not turn off.In this case, turn the ignition keyto the OFF position, wait forabout 10 seconds and thenrestart the engine. Then, if theengine control warning lightturns off, there is no malfunc-tion in the engine control sys-tem. CAUTION

Do not drive while the enginecontrol light is illuminated.This could cause decreasedfuel economy or decreasedpower, so have it inspectedand serviced by the nearestauthorized UD Trucks dealer.

If the engine stops or is clearlyproducing an abnormal soundor vibration, contact the near-est authorized UD Trucksdealer.

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N

- 45

OTE:Take care since the anti-lockbrake system serves as only aconventional brake systemwhile the warning light is on.

Engine coolant level warning light

When the engine coolant leveldecreases below a specified level,the warning light comes on and atthe same time a buzzer will soundto warn the driver.

If the warning light comes on andthe temperature gauge indicator isstill within the normal zone, imme-diately stop the vehicle in a safelocation, stop the engine, and thenadd engine coolant. When supply-ing the coolant, also check thecooling system for leaks.

If the warning light comes on andthe temperature gauge indicator isapproaching to the high tempera-ture zone or in the high tempera-ture zone, keep the engine idlingand do not touch the coolant reser-voir tank cap until the engine cool-ant temperature drops to thenormal range.

WARNING

If the vehicle is operated withthe warning light illuminated,stable braking may not beobtained depending on roadconditions. Have the vehiclechecked and repaired by anauthorized UD Trucks dealer orother qualified service facility.

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INSTRUMENTS AND CONTROLS

4.Check the cooling system for cool-ant leaks and radiator blockage. Ifrequired have the cooling systemrepaired by an authorized UDTrucks dealer or other qualifiedservice facility.

Be extremely careful whenopening the radiator filler cap.Place a thick cloth on the capand slowly loosen it to allow areduction in pressure in thecooling system.

CAUTION

Do not add water or coolantwhen engine is hot to avoidserious damage to the cylinderblock or head.

Do not operate the engine for aprolonged period without cool-ant solution.

1.When the warning light comes onand the warning buzzer sounds,immediately move the vehicle to asafe place. Apply the parkingbrake and shift the transmission tothe neutral position or P (Park)position.

2.After the engine cooling systemcools down, open the radiator fillercap.If the engine coolant level is belowthe bottom of the filler neck, addthe proper coolant solution untilthe level reaches the bottom of thefiller neck.

3.Also check the engine coolantlevel in the coolant reservoir tank.If coolant level in the reservoir tank

is below the LOW line, coolant willbe insufficient. Add the coolant tothe HIGH line on the coolant reser-voir tank. If an emergency existsand it is not possible to add theproper coolant solution, then addplain municipally supplied water. Ifplain water is added in an emer-gency, restore the genuine LongLife Coolant that has been diluted50% as soon as possible.

CAUTION

Do not continue driving whenthe warning light is illuminatedand the buzzer sounds.

Continuing to drive with too lit-tle coolant should absolutelynot be done because it couldcause overheating.

WARNING

To avoid serious injury from hotcoolant or steam release:Do not open the radiator filler

cap while the engine coolingsystem is still hot; wait until itcools. If the radiator cap isremoved right after the engineis shut off, scalding fluid andsteam may blow out underpressure and cause seriousburn injuries.

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INSTRUMENTS AND CONTROLS

P

TthTp5sbIfmcsm

In“Ro

ke warning light

rake shoe clearance (Not applica- to UD3300)> warning light comes on and the

rning buzzer sounds if brake shoearance is excessive or if there is ake system malfunction. Thezer will stop when the vehicle is

pped and the parking brake isaged.

ve the brake system checked andaired by an authorized UD Trucksler or a qualified brake service

ility.

- 47

arking brake warning light

he warning light comes on whene parking brake valve is engaged.he light also comes on when airressure drops below approximately4 psi (373 kPa) (3.8 kgf/cm2). Beure that the warning light is offefore moving the vehicle. the air pressure drops to approxi-ately 40 psi (275 kPa) (2.8 kgf/

m2) in both front and rear brakeystem, the parking brake will auto-atically be applied.

this case, refer to the itemeleasing parking brake” in In case

f emergency / Trouble-shooting.

Bra

<BbleThewaclebrabuzstoengHarepdeafac

WARNING

Never operate the vehicle withthe warning light on. The ser-vice brake will not provide nor-mal braking action. The vehicleshould be towed and not todriven to the UD Trucks dealer.

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INSTRUMENTS AND CONTROLS

Tilt lock warning light

If the tilt lock of the cab is improperlylatched, the warning light will comeon and the warning buzzer willsound. When the tilt lock is secure, thewarning light will go off and the warn-ing buzzer will stop sounding.

When the warning light comes onand the warning buzzer sounds,immediately move the vehicle to asafe place. To do this, apply thebrake slowly.Correct the tilt lock of the cab, andmake sure that the cab is securelylocked and the warning light is off. Ifthe warning light does not turn off,have the tilt lock system checked at

<Brake fluid level (Not applicable to UD3300)>When the fluid level in the brake fluidreservoir drops below the normaloperating level, the warning lightcomes on and a warning buzzersounds. The buzzer stops when thevehicle is stopped and the parkingbrake is engaged.Have the brake system checked andrepaired by an authorized UD Trucksdealer or a qualified brake servicefacility.

WARNING

Never operate the vehicle withthe warning light on and awarning buzzer sounding. Thebrakes may provide less effec-tive action or become totallyineffective.

WARNING

Never drive the vehicle whilethe warning light is on and thewarning buzzer is sounding.The brakes will not providenormal braking effectivenessand may become totally inef-fective. Determine cause ofbrake fluid loss, repair system,and refill brake fluid.

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INSTRUMENTS AND CONTROLS

ao

ift limitder the following conditions, thesmission control module (TCM)

hibits gear shifting for the pur-e of transmission protection, as reaction of diagnostic troublee (DTC) or a safety measure ofional functions.ling too high: At 1,000 rpm or

igher, shifting from the Neutral isrohibited.orward/reverse change-over:hen the vehicle is moving at over

specified speed, forward/reversehange-over is prohibited. If thisccurs, stop the vehicle, and shiftrst to P or N. then depress therake pedal and shift to theesired driving range.ransmission failure: When theCM receives abnormal signals,ear shifting is limited to protect

CAUTION

o not drive the vehicle if thearning light remains on. Have

he vehicle checked by anuthorized UD Trucks dealer

- 49

n authorized UD Trucks dealer orther qualified service facility.

ATM shift limit warning light(Allison 1000, 2200 and 2500 series)The warning light comes on whenthere has been an error in operationor when the safety circuit has beenactivated. It indicates that thechange from the current range toanother specified range cannot bedone.For Allison 3000 series, refer to the"SHIFT LIMIT warning message" onpage 10-30.

ShUntranproposthecodopt1.Id

hp

2.FWacofibd

3.TTg

WARNING

Do not operate the vehiclewhen the warning light is onand the warning buzzer issounding. Otherwise, if thebrake is used during driving,the cab could raise, causing aserious accident.

Dwta

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INSTRUMENTS AND CONTROLS

ATM maintenance information light

This light will illuminate when theATM should be serviced as soon aspossible for its components such asfluid, filter or clutch.

For details, refer to the section"Automatic transmission mainte-nance schedule" on page 11-12.

CAUTION

Do not continue driving thevehicle with the ATM mainte-nance information light on.Doing so may cause damageto the ATM.

the system from major troubles.The SHIFT LIMIT warning lightand the ATM SYSTEM warninglight illuminate and transmission isfixed to a safety range. When thelock up clutch is engaged, it will bedisengaged.

Exhaust gas high temperature indicator light

This indicator does not indicate asystem malfunction, however italerts the driver of the high tempera-ture of the system.

DANGER

Exhaust component andexhaust gas are at extremelyhigh temperature when thiswarning light becomes on.

When parking vehicle keepaway from people, or any flam-mable materials, vapors orstructures.

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INSTRUMENTS AND CONTROLS

Tli

Waflflplig

ake air heater indicator light

indicator light will come on when ignition key is turned to the ONition to preheat intake air. When light goes off, the engine is readytart.

TE:o not crank the engine until thedicator light goes off.

intake air heater will not activateess the engine coolant tempera- drops below normal operatingperature. engine coolant temperature

ermines whether the indicatort stays off or comes on when theition key is turned to the ON posi-.

- 51

urn signal and hazard indicator ght

hen the turn signal switch is oper-ted, the left or right indicator lightashes. When the hazard warningasher switch is turned to the ONosition, the left and right indicatorhts flash simultaneously.

Exhaust brake indicator lightThe indicator light will come on if theexhaust brake switch is turned onand the exhaust brake is operating.

Int

Thethepostheto s

NOD

in

TheunlturetemThedetlighigntion

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INSTRUMENTS AND CONTROLS

POWER MODE indicator light

The indicator light will come on whenthe power mode switch is set to thepower mode.

While operating, the indicator light inthe switch come on. (Allison 1000,2200, 2500 series)

Allison 1000, 2200, 2500 series

While operating, both the indicatorlight in the power mode switch andthe indicator light on the multi-dis-play monitor come on. (Allison 3000series)

High beam indicator light

This indicator light comes on whenthe dimmer switch is set to the highbeam position with the lightingswitch in the second position or thepassing switch is operated.

Automatic transmission O/D OFF indicator light (Allison 1000, 2200 and 2500 series)

This indicator comes on when theoverdrive switch is turned OFF. Theoverdrive switch is located on theselector lever.

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INSTRUMENTS AND CONTROLS

automatic adjustment of engine ng speedhen the knob is turned all theay to the left (counterclockwise),utomatic idling mode will beached, and the engine idling

peed will be adjusted automati-ally according to the temperaturef the engine coolant.ormally, this should be turned alle way to the left (counterclock-ise).

- 53

Allison 3000 series

Allison 3000 series

SWITCHES AND BUTTONS

Engine throttle control knob

The engine throttle control knob,located to the left of the steering col-umn, can be used to adjust engineidling speed. Normal engine idlingspeed is 550 rpm. If equipped withautomatic transmission, make surethe engine idling speed is 550 rpm atthe forward range.

TheidliW

waresco

Nthw

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INSTRUMENTS AND CONTROLS

Engine warm-up switch

The engine warm-up system oper-ates the exhaust shutter duringidling to shorten the engine warm-up time and temperature of theengine coolant.Note that the engine warm-up sys-tem can only be used when thevehicle is stopped.

For information regarding the oper-ation method, refer to the section“To quickly warm up the engine” ofVehicle Operation.

The manual adjustment of engine idling speedStop the vehicle and apply the

parking brake before performingmanual adjustment.

When the knob is turned to theright (clockwise), the modechanges from automatic idlingmode to manual adjustment mode,the engine speed will increase,and adjustment up to about 980rpm will become possible.

CAUTION

The manual adjustment modeis canceled while driving. Setto the automatic adjustmentmode while driving.

Turn the knob carefully, or theengine speed may increase tooquickly.

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N

ndshield wiper, washer and aust brake switch

dshield wiper and washer

windshield wiper control isated on the lever mounted on thet side of the steering column.

urning this switch turns on theipers, and washer liquid isprayed while pushing the switchn the end of the lever.

INT: Intermittent operationLO: Operates at a low speedHI: Operates at a high speed

- 55

OTE:Even if the engine warm-upswitch is ON, the engine warm-up system will cancel it if thevehicle is being driven, the

engine speed is increased, orthe clutch pedal is depressed.

If the engine coolant tempera-ture rises abnormally when theengine warm-up switch is ON,the engine warm-up system willautomatically cancel it.

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WARNING

Do not warm up the engine inareas with poor ventilation.

CAUTION

When not warming up theengine, leave the engine warm-up switch OFF. Leaving it oncould worsen the fuel econ-omy when idling.Leave the engine warm-upswitch OFF when the transmis-sion PTO is operating.When turning ON the enginewarm-up switch, put the throt-tle control knob in the AUTOposition. Turning the enginewarm-up switch to ON when athigh speed could generateblack smoke, although thisonly occurs rarely.

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INSTRUMENTS AND CONTROLS

Exhaust brake

Operating instructions for exhaust brakeExhaust brake provides additionalengine braking effect. Use it as anauxiliary brake when descending aprolonged grade or when decelerat-ing from high speeds. The exhaustbrake is controlled by the exhaustbrake switch lever located on theright side of the steering column.

To apply the exhaust brake, movethe lever upward to the ON positionwith the accelerator and clutch ped-als released and shift gear in otherthan neutral. An indicator light on theinstrument panel comes on when the

Operating the wipers when thewiper blades are stuck or frozen tothe glass will cause the wiper stopfunction to operate and temporarilystop the wipers (for about 10 sec-onds). When this happens, be sureto turn off the wiper switch andremove what is causing the wiperblades to stick before operatingthe wipers again.

WARNING

Do not use cooling systemsolution in the windshieldwasher fluid reservoir. Whensprayed on the windshield,cooling system solution cansignificantly affect visibility.

To reduce the possibility ofwasher fluid freezing on thewindshield which may reducevisibility, use the defroster towarm the windshield.

CAUTION

Do not operate the windshieldwipers when the windshield isdry. Dry wiper operation willscratch the windshield.

To avoid damage to the washermotor, do not operate thewindshield washer continu-ously for more than 20 sec-onds or with no washer fluid inthe tank.

To avoid damage to the wiperblades, do not operate the wip-ers when the windshield isiced over.

The windshield wiper motor isprotected by a circuit breakerin addition to a fuse. If themotor overheats, due to over-load caused by heavy snow,etc., the wiper will remainstopped until the motor cools.Be sure to have the cause ofthe overload corrected.

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leeTwpthe

TthtitoeubN

hting, dimmer, passing and n signal switch

s switch lever mounted on the lefte of the steering column operates dims the headlights. It alsoves as a turn signal and passingitch.

hting

n the knob on the end of theitch lever to the 1st or 2nd positionperate the following lights.

- 57

ver is in the ON position and thexhaust brake is operating.he exhaust brake is activated onlyhen both clutch and acceleratoredals are released. The purpose ofese provisions is to protect the

ngine and to improve driveability.

o release the exhaust brake, movee lever downward to the OFF posi-

on. Depressing either the accelera-r or clutch pedal can release the

xhaust brake, but it is preferable tose the lever to release the exhaustrake.OTE:The wheels could slip whenusing the exhaust brake whiledriving on slippery roads orover bumps, etc., which couldcause the ABS to operate andthe exhaust brake to be tempo-rarily cancelled and the indica-tor light to turn off, but this isnormal ABS operation and isnot a problem. Try to drive care-fully taking into considerationthe road conditions, the inter-vehicular distance, and otherfactors.

If the exhaust brake is released bydepressing the accelerator pedalsuddenly and not by operating thelever, it may cause fuel injection intothe engine with a blocked exhaustsystem and subsequent puff of blacksmoke and possible exhaust pipeoverheating.

While the vehicle is stationed, con-firm exhaust brake actuation by fol-lowing procedures:

1.Move the exhaust brake switchlever upward to the ON position

2.Confirm that the exhaust brakeindicator light illuminates andthat the engine sound changesat the same time.

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INSTRUMENTS AND CONTROLS

Dimmer, passing and turn signal

To operate the left turn signal, pullthe turn lever on the left side of thesteering column down beyond theresistance. To operate the right turnsignal, push the lever up beyond theresistance. The lever will automati-cally return to the neutral positionafter the turn is completed. Whenoperating the left or right signal, con-firm that the TURN SIGNAL ANDHAZARD indicator light flashes.When the ON-OFF intervals areunusually short, the bulb is probablyburned out.

* The daytime running lights comeson when:

The ignition key is turned ON.The headlight is turned off (with

the lighting switch in the OFF or1st position).

The parking brake is released.(After the headlight comes on, itwill not turn off when operating theparking brake.)

NOTE: If the lighting switch is in the 1st

position, daytime running lightdoes not go out by turning offthe key switch. The light goesout when the lighting switch isturned off.

Light nameKnob

position1st 2nd

Tail light

License plate light

Front position light

Instrument cluster illumi-nation light

Heater or Air conditioner control illumination light

Automatic transmission selector control illumina-tion light

Clearance and identifica-tion light

Headlight

*Daytime running light

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INSTRUMENTS AND CONTROLS

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ise Control

ise Control is a device that allowsehicle to be driven at a set con-nt speed without depressing theelerator pedal with your foot. This

useful when driving on express-ys and at other times when thereo need to accelerate or brake fre-ntly. Cruise Control is engagedswitching it on at the speed yount to maintain.

- 59

o change the headlights to higheam, push the turn lever forward.o return the headlights to low beamull the lever to its normal position.n indicator light on the instrumentanel comes on when the headlightsre on high beam.

he headlight high beams can beomentarily operated as a signalhen passing another vehicle byulling the turn lever towards theriver. The lever will return to theeutral position when released.eturn the headlights to the loweam position as a courtesy whenvertaking vehicles or meetingncoming traffic.

Hazard warning flasher switch

The hazard warning flasher switch islocated on the lever mounted on theright side of the steering column.Use the switch to warn approachingvehicles during an emergency stop orother extraordinary conditions. Pull theswitch lever to activate the hazardwarning flashers. When the switch isoperated, both the outside left andright turn signals and TURN SIGNALAND HAZARD indicator lights flash.Pull the switch lever to turn off theflashers. The switch can be used withthe ignition key in any position.NOTE:Turn flasher signals do not work

when the switch is operating.

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WARNING

Replace the burned-out bulbas soon as possible.

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INSTRUMENTS AND CONTROLS

3.When the preferred speed isreached, press and release theCruise Control Set and Coast But-ton located at the end of the com-bination switch.

Cruise Control operation instruc-tions

To set Cruise Control to preferred constant speed1.Make sure the exhaust brake

switch is in the OFF position.2.Turn the Cruise Control main

switch to the ON position. Confirmthat the Cruise Control ON indica-tor light is illuminated.

WARNING

To prevent loss of control and anaccident, do not use Cruise Con-trol under the following roadconditions.When the roads are slippery,

such as when they are icy orsnowy or wet.

When descending steepslopes and engine braking isnot sufficient, thus allowingthe vehicle to exceed the setspeed.

When driving in traffic condi-tions that require frequentacceleration and deceleration,such as roads with heavy traf-fic on city streets, windingroads or roads with sharpcurves.

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4

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cceleration pedal operation>epress the accelerator pedal tocrease to the preferred speeduickly, and when the preferredpeed is reached, press andlease the Set and Coast Button set the speed.

decrease the set speedre are three ways to decreaseed:

p down operation>ress and immediately releaseithin 0.5 second) the Set and

oast Button to decrease the setpeed 0.6 mph (1 km/h) at a time.

- 61

.Remove your foot from the accel-erator pedal.

o temporarily accelerateccelerate by depressing the accel-rator pedal.ou can then return to the originallyet speed by removing your footom the accelerator pedal andllowing the vehicle to gradually slowown to the set speed.

To increase the set speedThere are three ways to increasespeed:

<Tip up operation>Press and immediately release

(within 0.5 second) the Accelerateand Resume switch to increasethe set speed 0.6 mph (1 km/h) ata time.

<Set acceleration operation>Press and hold the Accelerate and

Resume switch until the preferredspeed is reached, and thenrelease the switch to set thespeed.

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INSTRUMENTS AND CONTROLS

NOTE:Cruise Control will be temporarilycancelled in the following situa-tions.When the Set and Coast Button

and the Accelerate and Resumeswitch are pressed at the sametime.

When a malfunction occurswithin the system.

<Set and Coast operation>Press and hold the Set and Coast

Button until the preferred speed isreached, and then release the but-ton to set the speed.

NOTE: If you continue to press and

hold the Set and Coast Button,the speed will not drop belowapproximately 22 mph (35 km/h),it is set at a speed of approxi-mately 22 mph (35 km/h).

<Brake pedal operation>Depress the brake pedal to

decrease to the preferred speedquickly. When the preferred speedis reached, press and release the

Set and Coast Button to set thespeed.

To temporarily cancel the Cruise ControlCruise Control will be temporarilycancelled in the following situations.When you depress the brake

pedal.When you depress the clutch

pedal.When the gear shift lever or selec-

tor lever is moved to neutral.When the exhaust brake switch is

switched to the operation position.When the vehicle speed drops

below approximately 22 mph (35km/h).

When the Cruise Control is tempo-rarily cancelled, Cruise Control ONindicator light continues to illuminateand Cruise Control SET indicatorlight turns off.

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INSTRUMENTS AND CONTROLS

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hen the ignition key is turned toe OFF position.

WARNING

o prevent the vehicle fromccidentally starting to move,hen not using Cruise Control,witch the Cruise Control mainwitch to the OFF position.

- 63

o resume the speed that was set efore cancellationhen Cruise Control has been tem-

orarily cancelled, pressing andleasing the Accelerate andesume switch will cause the vehi-le to resume the speed that was setefore cancellation.esume cannot be performed whenehicle speed is less than 19 mph0 km/h).

To cancel the Cruise ControlThe following situations will cancelthe Cruise Control and cause theCruise Control ON and SET indicatorlights to turn off. When the Cruise Control main

switch is switched to the OFF posi-tion.

Wth WARNING

Before cancelling the CruiseControl, make sure that no caris too close. Cancelling theCruise Control can signifi-cantly reduce vehicle speed.

WARNING

When resuming your setspeed, do not press and holdthe Accelerate and Resumeswitch for any length of time.Doing so causes the set speedto increase.

Tawss

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INSTRUMENTS AND CONTROLS

Transmission PTO switch

This switch located on the instru-ment panel to the left of the steeringcolumn, couples and uncouplespower flow to the transmission PTO.To turn the PTO ON, idle the engine,depress the clutch pedal fully, anddepress the switch. The PTO indica-tor and operation message will comeon. To turn the PTO OFF, idle theengine, depress the clutch pedalfully, and depress the switch. ThePTO indicator and operation mes-sage will go out.

Illumination control rheostat

The illumination in the combinationmeter turns on when the lightingswitch is in the 1st or in the 2ndposition.

The brightness can be adjusted byturning the switch to the right andleft. Turn it to the right for brighterillumination and to the left fordarker illumination.

When the brightness is adjustedwhile the combination meter is illu-minated, the brightness of themulti-display meter screen issimultaneously adjusted.

NOTE:When the combination meter is

not illuminated, the brightnessof the multi-display meterscreen cannot be adjusted.

If a warning or an indicator lightinterrupts the monitor display ofthe multi-display meter, themonitor screen is brightened toalert the driver regardless of theadjusted illumination.

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INSTRUMENTS AND CONTROLS

s switch is located on the instru-nt panel to the right of the steer- column (Allison 1000, 2200 and0 series) or on the selector

itch to the right of the driver’s seatlison 3000 series).lect the normal or power modeh the mode change switchending on the driving condition. en the switch is pushed once, theer mode will operate. When the

itch is pushed again, operationps (normal mode). While operat-, the indicator light in the switchminates and also the indicator on multi-display comes on (Allison0 series only).

- 65

Power mode switch (ATMspecification vehicles)

Allison 1000, 2200, 2500 series

Allison 3000 series

Thimeing250sw(AlSewitdepWhpowswstoingilluthe300

CAUTION

Never operate the PTO whiledriving the vehicle. Operate the PTO switch onlywhen the vehicle is stopped.The transmission gears maybe damaged if the switch isoperated while the vehicle ismoving.Turn the PTO switch off beforestarting the vehicle.Depress the clutch pedal fullybefore activating the PTOswitch to the ON or OFF posi-tion.

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INSTRUMENTS AND CONTROLS

Procedure for returning the bed to the normal driving height1.Check that there is no person or

object under or near the vehicle. 2.After ensuring the safety around

the vehicle, start the engine andpush off the air suspension dumpswitch. The bed is returned to thenormal driving height.

CAUTION

Before operating the air sus-pension dump switch, checkthat there is no person orobject under or near the vehi-cle.

Before turning ignition key tothe OFF position or releasingthe parking brake, make surethat the bed is in the normaldriving height. If the ignition key is turned tothe OFF position or the parkingbrake is released while the bedis in the lowered state, the bedwill be automatically returnedto the normal driving height.

Air suspension dump switch

<UD2600 and UD3300 equipped with air suspension>

This switch is located at the rightside of the heater control.By operating this switch, the vehiclebed can be lowered by exhaustingair from the air spring at the rear axleto facilitate loading/unloading work.

Operation procedure

Operation procedure for lowering the bed1.Stop the vehicle on a level ground. 2.Pull up the parking brake valve

and turn the ignition key to the ONor ACC position.

3.Before operating the air suspen-sion switch, check that there is noperson or object under or near thevehicle.

4.After confirming the safety, pushthe air suspension dump switch.Air is exhausted from the air springat the rear axle and the bed is low-ered.

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INSTRUMENTS AND CONTROLS

CAUTION

fter removing the fogging ofhe mirrors, immediately turnff the switch.

f not, the battery may go dead.

- 67

Mirror heater switch (Optional)

This switch is located at the rightside of the steering column.By turning on the mirror heaterswitch, the heaters incorporated inthe right and left outside mirrors areenergized and the mirrors aredefogged. While the heaters are energized, theindicator light in the switch stays illu-minated.

The air suspension dumpswitch will be activated onlywhen the parking brake valveis pulled up and the ignitionkey is turned to the ON or ACCposition.If the air suspension dumpswitch is accidentally pressedduring driving, the bed will notbe lowered for safety but awarning buzzer will sound. BY pressing the dump switchagain, the warning buzzerstops.

AtoI

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INSTRUMENTS AND CONTROLS

Horn

The horn pad is mounted in the cen-ter of the steering wheel. Press onthe pad to sound the horn.

Power mirror switch (Optional)

This switch is located on the instru-ment panel below the heater control.This switch is used to adjust theangle of the rear view mirrors on thedriver’s side and passenger side. Itwill operate when the ignition key isturned to the ON position.

Push the right/left selection switchand then move the operationswitch up or down, left or right toadjust the view to the rear.

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INSTRUMENTS AND CONTROLS

D

- 69

PF SYSTEM

The PM reduction device collectsthe soot (particulate matter) that ispart of exhaust gas through theaftertreatment diesel particulate fil-ter (DPF) located in the muffler,and then continuously regenerates(burns) the soot by oxidation catal-ysis.When continuous DPF regenera-tion cannot be performed due tolow speed driving, the automaticDPF regeneration starts to burn(regenerate) the soot to preventexcessive accumulation in theDPF that is located inside the muf-fler.When automatic regenerationdoes not operate due to low speeddriving or starting/stopping theengine many times while driving,manual regeneration must be per-formed after stopping the vehicle.Based on the amount of soot accu-mulated in the DPF, perform DPFregeneration following the tablebelow.

NOTE: If a certain amount of soot from

exhaust gas accumulates in theDPF, the PM reduction deviceautomatically burns (regener-ates) the collected soot.Depending on the driving condi-tion, soot may not be com-pletely burned (regenerated). Inthat case, the DPF cloggingwarning light and the indicatorlight that is built in the manualforced regeneration switch willflash to indicate that manualDPF regeneration is needed.

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INSTRUMENTS AND CONTROLS

DPF clogging warning lightThe DPF clogging warning light

will blink if manual DPF regenara-tion should be performed due tosoot accumulation in the DPF.When the warning light blinks, per-form the following procedure.

Also, when the ignition key isturned to the ON position, it illumi-nates for 1 second for a bulbcheck.

ProcedureStop the vehicle in a safe location,and then perform manual DPF

method

rformed while driving at a high fore, soot is burned and

is accumulated, the soot is ed.

on, and then perform manual

s dealer for inspection.

Device information

Manual forced regeneration switch

Soot deposit accumulation Status of the vehicle Cleaning

Little

Large

Normal driving(Continuous regeneration is pespeed or with a high load, therecleaned.)

Automatic DPF regeneration When a certain amount of sootautomatically burned and clean

Flashing of the DPF clogging warning light and the indicator light that is built in the manual forced regeneration switch

Stop the vehicle in a safe locatiDPF regeneration.

DPF system warning (Amber) and warning message are displayed Contact your nearest UD Truck

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INSTRUMENTS AND CONTROLS

reu

M

TE:hile performing automatic

egeneration, engine noise willary and engine speed at idleill increase. This does not indi-ate a malfunction.

WARNING

mmediately after the vehicle istopped or while the system isn the cleaning mode, the arearound the muffler andxhaust gas are extremely hot.o not stop the vehicle in a

ocation where there are flam-able materials such as dried

rass or paper waste.f there are flammable materi-ls around the vehicle, a fireay occur. This could cause

urns from the heated exhaustas.

- 71

generation by operating the man-al forced regeneration switch.

anual forced regeneration switchBy operating this switch, the sootcollected in the DPF is manuallyburned (regenerated) to keep thefunction of the exhaust gas clean-ing device properly. For details on how to use thisswitch, refer to the “Manual DPFregeneration operation” section.The indicator light that is built inthe switch will blink just as the DPFclogging warning light blinks ifmanual cleaning should be per-formed due to soot accumulationin the DPF.

DPF soot level gaugeThe DPF soot level gauge indi-

cates the accumulation level of thesoot in the DPF. Check if neces-sary.

For details on how to display, referto the “Multi-display monitor” sec-tion in “INSTRUMENT AND CON-TROLS”.

Automatic DPF regeneration

To prevent excessive accumula-tion of soot in the DPF, the soot isautomatically burned and cleaned.Though engine noise and enginespeed at idle will vary, the vehiclecan be driven as usual.

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INSTRUMENTS AND CONTROLS

The approximate time required formanual DPF regenerationdepends on the conditions the lasttime the vehicle was driven andthe engine idling status, howevernormally it takes 25 minutes.

1.Stop the vehicle in a safe location,and then keep the engine idling.

2.Be sure to apply the parking brake.Place the gearshift lever in theneutral position. Do not depressthe accelerator pedal.

3.Press the ON side of the manualforced regeneration switch.

4.When the DPF regeneration starts,the warning of DPF regenerationappears on the multi-display moni-tor. The engine speed at idle willincrease.

Manual regeneration (when the DPF clogging warning light blinks)

If the vehicle is driven at a lowspeed or the engine is started/stopped many times while driving,the soot in the DPF may not beburned and cleaned automatically.

In this case, the DPF cloggingwarning light informs the driverthat the soot in the DPF must beburned and cleaned manually.

NOTE: If the vehicle is driven under any

of the following conditions, theDPF clogging warning light mayblink many times because theautomatic regeneration may notoperate.・The vehicle is frequently drivenat a low speed.・The engine is started/stoppedmany times while driving.・The vehicle is driven manytimes for only a short distance.・The engine is always stoppedbefore it warms up.

Manual DPF regenerationoperation

When the DPF clogging warninglight blinks, perform manual DPFregeneration according to the fol-lowing procedure, and then burnand clean the soot in the DPF.Note that manual regeneration canbe performed when the indicatorlight blinks or automatic DPFregeneration is started.

CAUTION

When the DPF clogging warn-ing light blinks, operate themanual forced DPF regenera-tion switch to perform thecleaning manually, and thenburn and clean the soot in theDPF.If driving is continued, clog-ging in the DPF or a systemmalfunction may occur.

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5

6

7

WARNING

o not perform manual DPFegeneration in a location withoor ventilation. Exhaust gasay cause carbon monoxide

oisoning especially in annclosed location, such as in aarage, indoors, etc.o not perform manual DPF

egeneration in a locationhere there are flammableaterials such as dried grass

r paper waste. The tempera-ure of the exhaust gas and therea around the exhaust pipend muffler become high dur-ng the cleaning mode. There-ore, if there are flammable

aterials nearby, a fire mayccur.

n addition, never allow yourody to contact the exhaustas and the area around thexhaust pipe and muffler.oing so may cause burn inju-

ies. If the vehicle is stoppedver a road surface that isainted, the road surface maye discolored.

- 73

.When the warning of DPF regener-ation by the exhaust gas cleaningdevice is no longer displayed onthe multi-display monitor, manualDPF regeneration is completed.The engine speed at idle will returnto normal.

.After manual regeneration is com-pleted, the vehicle can be drivenas usual.

.To stop manual regeneration part-way, press the CANCEL side ofthe manual forced DPF regenera-tion switch. When manual DPFregeneration is stopped partway,the warning of regeneration restric-tion of the exhaust gas cleaning

device appears on the multi-dis-play monitor.

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INSTRUMENTS AND CONTROLS

partway, it is not completed.Resume manual regenerationsoon.

If the vehicle is driven before theregeneration is completed, theDPF clogging warning light willblink again.

Manual DPF regeneration can beperformed as stated above evenif automatic cleaning is beingperformed.

When the DPF system warning is displayed

If the soot accumulation levelreaches a specified limit by drivingthe vehicle with the DPF cloggingwarning light blinking, the DPFsystem warning, warning messageand comment are displayed on themulti-display monitor to alert thedriver. The warning appears in twodifferent steps, amber and red.

When it appears, clogging in theDPF or system malfunction mayoccur.

NOTE:The engine speed at idle

increases while manual DPFregeneration is being per-formed. This is due to a temper-ature increase of the exhaustgas to burn (regenerate) the col-lected soot. This does not indi-cate a malfunction.

While performing manual DPFregeneration, the aftertreatmenthydrocarbon doser system sup-ports the manual DPF regenera-tion by automatically injectingfuel in the exhaust pipe.

If the temperature of the insideof the muffler is higher, the man-ual DPF regeneration is com-pleted in a shorter time.

Manual DPF regeneration iscompleted in a shorter timewhen the engine is hot immedi-ately after the vehicle is stoppedthan when the engine is cool.When the engine is cool, thetime required for DPF regenera-tion takes longer because theDPF regeneration is performedafter the engine warms up. The time spent for warming up

the engine depends on the out-side temperature, but generallyit takes about 5 to 10 minutes.Therefore, manual DPF regener-ation should be performedimmediately after the vehicle isstopped (while the engine is stillwarm).

Manual cleaning cannot be per-formed under the following con-ditions.・The engine coolant temperature (ECT) is low. (Perform after the engine warms up.)・The accelerator pedal (AP) is depressed.・The parking brake is released.・The transmission gear is placed in any position other than the neutral position.

For the models equipped withthe PTO switch, be sure to turnthe PTO switch off when turningthe manual forced aftertreat-ment DPF regeneration switchon. The regeneration processdoes not start.

When manual aftertreatmentDPF regeneration is stopped

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VERS AND CONTROL

nsmission gear shift lever

transmission gear shift lever isated on the right of the driver’st. When shifting gears, depress clutch pedal fully and move theer firmly. When the shift lever isved into reverse, the backupts come on and the backupzer sounds. The backup lights buzzer are located on the rear of

vehicle.

- 75

When the amber DPF systemwarning appears, contact yournearest UD Trucks dealer forinspection.While the amber DPF systemwarning appears, engine torque isreduced to protect the DPF.When the red DPF system warningappears, immediately stop thevehicle in a safe location and con-tact your nearest UD Trucksdealer.

NOTE: If the DPF system warning

appears, the exhaust gas clean-ing device may be damaged.Manual DPF regeneration is notpossible.

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CAUTION

If the vehicle is continued to bedriven, the engine shutdownwill operate.

Do not drive the vehicle withthe DPF system warning dis-played. The DPF that isequipped with muffler may bedamaged.

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INSTRUMENTS AND CONTROLS

Parking brake valve

The parking brake valve is located tothe rear of the gear shift lever. Pullthe knob up to operate the parkingbrake. When the knob is pulled up,the PARKING BRAKE warning lightcomes on. To release the parkingbrake, press the knob down. Thewarning light will go out.

Automatic transmission selector lever (switch)

Allison 1000, 2200 and 2500 series

Allison 3000 series

The selector lever (switch) is locatedon the right of the driver’s seat.

When the selector lever (switch) ismoved (pushed) into R (Reverse)position, the backup lights come onand the backup buzzer sounds andthe back buzzer sounds in the cabin.The backup lights and buzzer arelocated on the rear of the vehicle.The engine starts in the N (Neutral)or P (Park) position.

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- 77

WARNING

Never apply the parking brakewhen the vehicle is moving.Such application will lock therear wheels and may result inloss of vehicle control, couldcause damage to the drivelineand/or brake drum on thetransmission.Do not operate the parkingbrake valve with a person nearthe rear axle. The movement ofthe parking brake actuatingrod can cause serious injury.

When parking on a grade,apply chocks to the wheels inaddition to using the parkingbrake.

CAUTION

Release the parking brakebefore driving the vehicle. Fail-ure to release the parkingbrake can cause brake dam-age.

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8 - 1

ACCESSORIES

CAUTION

To avoid damage to the lighter,do not hold the lighter in man-ually.

Avoid deforming the cigarettelighter. Using a deformedlighter could be dangerous, asit will not pop out. Make surethat defective parts arereplaced with genuine parts orequivalent.

If the cigarette lighter does notpop out within 20 secondsafter it has been pushed in,remove it immediately andhave it checked at an autho-rized UD Trucks dealer or otherqualified service facility.

Never leave your vehicle withthe cigarette lighter pushed in.

ACCESSORIES Cigarette lighter

The cigarette lighter is located at theright side of the heater control. Tooperate the lighter, push it in. Thelighter will pop out to its normal posi-tion when heated.

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ACCESSORIES

P

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htray

ashtray is located inside of thet and left doors.open the ashtray, pull the tabard.

remove the ashtray for cleaning,l the tray upward.

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WARNING

o prevent fire, ensure that anyit or smoldering materials inhe ashtray are completelyxtinguished.

- 2

ower socket

he power socket is located at theght side of the cigarette lighter.se the power socket in the cab toonnect commercially available carccessories. Remove the cap beforese. The following devices can beonnected to the socket.

As

TherighTo upwTo pul

Device Rated currentharger for mobile hone 2A

PS 2AV 9.5Aireless device 2.2Aomputer 7A

CAUTION

Do not use a TV while driving.The use of a TV may shortenthe life of the battery depend-ing on operating or use condi-tions. Keep the use of a TV to aminimum when ever possible.

WARNING

The use of any device with ahigher current than the allow-able load can heat the socketand cord and cause fire. Usedevices with the allowable loadcurrent.

The socket is for 12 volts only.Do not use any car accessoryfor 24 volts with the socket. Atrouble may be caused in thedevice.

The socket can be used whilethe ignition key switch is in theACC position. Before leavingthe vehicle, disconnect thedevice from the socket.

Tlte

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8 - 3

ACCESSORIES

Cup holder

This is used to hold bottle and cupfor drinks, etc.

CAUTIONAvoid abrupt starting and brak-

ing to prevent a drink frombeing spilt when it is stored inthe cup holder.

Overhead box

Store only lightweight items, such asthe vehicle inspection certificate andmagazines, in the large box with thelid.

CAUTIONThe standard weight of objectsstored in the overhead is indi-cated below. Storing objectswith the weight exceeding thefollowing limit may damage theconsole and lid. Overhead box: 6.6 Ib (3 kg) or

less

Be sure to keep the overheadbox closed while driving.Driving with it open couldallow the items in the box tofall over and hinder driving.

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ACCESSORIES

R

rd holder

s can be used to hold such cardstelephone cards and highway

ds.

CAUTIONo prevent theft, do not leaveredit cards in the card holderhen away from the vehicle.

- 4

oom light

Turning on the room light switchto ON turns on the room lightregardless of whether or not adoor is open or closed.The room light turns off whenthe room light switch is turnedto OFF.When the room light switch is inthe DOOR position, the roomlight will turn on when thedriver’s seat door or the pas-senger seat door is opened,and will turn off when the door isclosed.

Ca

Thias car

State of the doors Room light switch position

Driver’s side

Passen-ger side ON OFF DOOR

Close

Turnon

Turnoff

Turnoff

Open CloseTurnonClose Open

Open

Tcw

Page 135: Manual Nissan Ud

8 - 5

ACCESSORIES

Door pocket

Door pockets are located in the leftand right doors. Place road maps,magazines, etc. inside it.

Console box (optional)

When the seatback of the centerseat is folded forward, some docu-ments, small items, etc. can bestored on the reverse side of theseatback.

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9 - 1

HEATER OR AIR CONDITIONER CONTROL

TROL

become clogged, so inspect andclean them periodically.

For information about how to cleanthe air filter, refer to "BLOWERMOTOR FILTERS" on page 11-82.

HEATER OR AIR CONDITIONER CONAIR CONDITIONER

Air vent

Use the air conditioner when theengine is running.

The engine coolant is used to heatthe air used for heating. The aircoming from the air vent will not bewarm until the engine coolant tem-perature.

<Handling the blower motor filters>Both the outside and inside air

intakes have a cartridge air filter.The air conditioner will not be aseffective if these air filters

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9

HEATER OR AIR CONDITIONER CONTROL

M

C leasant.

O

- 2

anual air conditioner

hange the switch and dial selections to match the season to make your driving p

peration Panel

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9 - 3

HEATER OR AIR CONDITIONER CONTROL

d Function

compressor. However, the fan continuesen the mode dial is in the “Defrost” posi-

djusted manually.Reduces airflow

ugh the heater core.

fter passing the air through the heater core.

match the temperature control dial setting.n left: Lowers temperature

the Vent position.

he air outlet to the Vent & Foot position.

tlet to the Foot position.

et the air vents to the Foot & Defrost posi-

tion.defrost vents than from the foot vents.)

vents to the Defrost position.ke vents to outside air.mpressor.an dial is set to OFF.

Name Position Purpose an

Dial

Fan dialOFF

To stop fan operation: This stops the air from the fan and the

operating at the minimum air level whtion.

– HI To adjust the fan speed: The fan speed is a Turn right: Increases airflow, Turn left:

Temperature control dial

COLD Use maximum cooling: Blows a cool air without passing the air thro

HOT Use maximum heating: Blows a warm air a

COLD - HOTAdjust the temperature of the air: This changes the temperature of the air to Turn right: Increases temperature, Tur

Mode dial

Vent Send air from the vent: Set the air outlet to

Vent & Foot Send air from the vent and foot vents: Set t

Foot Send air from the foot vents: Set the air ou

Foot & Defrost 1 Send air from the foot and defrost vents: Stion.

Foot & Defrost 2Send air from the foot and defrost vents: Set the air vents to the Foot & Defrost posi(This divides the air to blow more from the

Defrost

Send air from the defrost vents:Set the air Set the inta Run the co

The minimum air will blow even if the f

Page 140: Manual Nissan Ud

9

HEATER OR AIR CONDITIONER CONTROL

N

light on) and heater mode (light off).

s not operating)

letting in the outside air.n.r.

nction

- 4

OTE:Do not operate the dials or switches while driving.

Switch

Air conditioner switch

The light turns on/off each time this is pushed.

This switches between the dehumidifier mode ( Light on: Compressor is operating normally Light off: Heater is operating (compressor i

Fresh/Recircula-tion switch

Alternates between turning on the inside air light and outside air light each time this is pushed.

It switches between insider air recirculation and Inside air light: Set to inside air recirculatioOutside air light: Set to let in the outside ai

Name Position Purpose and Fu

Page 141: Manual Nissan Ud

9 - 5

HEATER OR AIR CONDITIONER CONTROL

Heating

Moving the mode dial to the Footposition will blow warm air on thefeet.

The temperature control dial isused to adjust the air temperature,and the fan dial is used to adjustthe fan speed as desired.

When you want to heat up the cabquickly or when you are in a dustylocation, push the Fresh/Recircula-tion switch to select the inside air.

When the windshield fogs up eas-ily, set the air vents to Foot &Defrost.

NOTE:Mode dial Foot & Defrost 1

blows more air through the footvents than the defrost vents,and Foot & Defrost 2 blowsmore air through the defrostvents than through the footvents.

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9

HEATER OR AIR CONDITIONER CONTROL

WU old weather.

Illustration

I ing step.

- 6

hen resting in the seatse the heater as instructed below when idling the engine to heat the cab during c

No. Operation method and description

1

Adjust the air conditioner temperature higher than normal. The air temperature in the cabin rises according to the adjustment of the tem-

perature control dial.NOTE: The air temperature in the cabin tends to decrease because the tempera-

ture of the engine coolant becomes low. Set the air conditioner tempera-ture higher beforehand to keep the air temperature comfortable.

2

Push the air conditioner switch and turn off the position light (heater mode). The air conditioner compressor stops.NOTE:When the position light is on (dehumidifier mode), the air conditioner

cools the incoming air before warming it. Thus, the air temperature fromthe vent becomes low.

3

Push the fresh/recirculation switch to illuminate the position light of the inside air recir-culation mode. The intake vent is fixed at inside air recirculation.NOTE: The air temperature from the vent becomes low when the outside air mode

is selected because the cold outside air is warmed. However, the air tem-perature from the vent becomes high when the inside air recirculationmode is selected because the warm inside air is warmed again.

f the air temperature in the cabin is cool after performing steps 1 to 3 above, perform the follow

Page 143: Manual Nissan Ud

9 - 7

HEATER OR AIR CONDITIONER CONTROL

lant temperature gauge may indicate awever, performing the steps above will

per-

theitch

LE

e osi-

cir-

Illustration

NOTE: The heater utilizes heat from the engine coolant. While idling, the engine coo

lower value because the temperature of engine coolant tends to decrease. Hoallow sufficient performance of the heater.

4

Turn the warm-up switch to the ON position. The exhaust brake operates, and the idle speed increases and then the tem

ature of engine coolant rises.NOTE:While parking the vehicle for a long period of time, the temperature of

engine coolant tends to decrease. However, using the warm-up swallows sufficient performance of the heater.

For details on how to use the warm-up switch, refer to the “VEHICOPERATION” chapter.

5

If it is still cold, even when the warm-up switch is turned on, operate the enginthrottle control knob to turn idle speed up with the warm-up switch in the ON ption.

<When resting in the seat after driving>Push the fresh/recirculation switch to illuminate the position light of the inside air reculation mode. The intake vent is fixed at inside air recirculation.

No. Operation method and description

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9

HEATER OR AIR CONDITIONER CONTROL

V

itching between inside and side air

rmally, the intake vents use out-e air, but when you want toid dust, exhaust fumes, etc.,h the Fresh/Recirculation

itch to switch to inside air recir-ation.

WARNING

o not use inside air recircula-ion for a long time. Doing soill cause the air inside theab to become foul or theindshield to fog up, etc.

- 8

ent & Foot (Cool head, warm feet)

Moving the mode dial to the Vent &Foot eliminates the discomfortcaused by the warm air making theheat too hot, etc.The temperature control dial isused to adjust the air temperature,and the fan dial is used to adjustthe fan speed as desired.

Defrost

Putting the mode dial in the Defrostposition will blow warm air from thedefroster on the inside of the wind-shield.

NOTE:When the mode dial is moved to

the Defrost position, the com-pressor begins to run and theintake vents are set to outsideair. Note that the compressormight not turn on due to certainconditions, such as the outsideair temperature.

When the mode dial is moved tothe Defrost position, the mini-mum amount of air will bloweven if the fan dial is set to OFF.

Swout

Nosidavopusswcul

Dtwcw

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9 - 9

HEATER OR AIR CONDITIONER CONTROL

Cooling and dehumidifying

Cooling and dehumidifying can bedone by pushing the air condi-tioner switch.

The temperature control dial isused to adjust the air temperature,the fan dial is used to adjust thefan speed, and the mode dial isused to select the air vents asdesired.

When you want to quickly cooldown the cab, push the Fresh/Recirculation switch to switchinside air recirculation.

Information regarding automobile refrigerant

The cooling performance coulddrop causing poor cooling if thereis insufficient refrigerant or therefrigerant compressor belt isloose.

If refrigerant is leaking, have itinspected by the nearest autho-rized UD Trucks dealer. Also, if thebelt is loose, have it adjusted.

CAUTION

Use Freon HFC134a to helpprotect the environment. Onlyuse the specified refrigerant tocharge the cooling system.

To protect the global environ-ment, do not discharge refrig-erant into the atmosphere.

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VEHICLE OPERATION

VO

ERATING PRECAUTIONSlowing a few precautions will helpgthen the life and reliability ofr vehicle.fter starting, warm up the enginentil it runs smoothly.o not race the engine during thearm-up period.void sudden starts and abrupttops.hen you start a loaded vehicle,

se 1st gear. When you go uphill,se an appropriate lower gear.se the same gears going down arade as you used or would useoing up.

0 - 1

EHICLEPERATION

OPFollenyouA

uD

wA

sW

uu

Ugg

WARNING

Never drive the vehicle with the engine stopped. the clutch disengaged (not

applicable to automatic trans-mission).

the transmission gear shiftlever in neutral.These are very hazardous andcan cause loss of controlresulting in death or seriousinjury. This is because:1.You cannot use the engine

brake.2.When the engine is not run-

ning, the brake system willnot function properly, andthis can result in a longerstopping distance.

3.The power steering systemwill not function, and muchgreater effort is needed tocontrol the steering.

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VEHICLE OPERATION

WARNING

The vehicle’s stopping dis-tance will increase as the loadof the vehicle increases. Accel-eration performance will alsobe reduced. In addition, aloaded vehicle’s handlingcharacteristics differ fromthose of an unloaded vehicle.Depending on the loading, dif-ferences in steering responseand vehicle leaning while turn-ing and in curves may occur.Anticipate these differencesand operate your vehicleaccordingly. Always balanceand secure the vehicle load.

The muffler (catalyst system inthe muffler) become very hot.Do not touch it, also do not letit come in contact with thesheets or ropes on the rearbody or dry grass on theground as they may ignite andcause a fire.

BREAK-IN PRECAUTIONSDuring the initial 600 miles (1,000km) of operation: Observe the “OPERATING PRE-

CAUTIONS” section above.Do not exceed 75% of the vehicle

GVWR. See the “BEFORE DRIV-ING YOUR VEHICLE” section fordetails.

VEHICLE LOADINGDo not exceed the GVWR or thefront and rear GAWRs of the vehicle.The vehicle GAWRs may beexceeded before the vehicle loadreaches the GVWR depending onthe body and equipment on the vehi-cle. Confirm that the vehicle’s tires,springs and axles are not over-loaded. Always balance and securethe vehicle load. Loading and bal-ance of the load will affect the brak-ing, handling, stability and othercharacteristics of your vehicle.

Page 148: Manual Nissan Ud

1

VEHICLE OPERATION

T

TEmsaifmIfbtrdteoavlicainN

TTto

o not exceed the GCWR rating oransmission damage may occur.

rvicing after towing

ou tow a trailer for long distances,r vehicle will require more fre-nt service intervals. Refer to thehicle Service and Maintenance”tion for “Type 1” vehicle opera-.

iler towing safety tips

neralnsure that the trailer, safetyhains and electrical connectorsre securely fastened.ake sure the truck receiver, drawar, and coupler are properly con-ected and adjusted.heck side mirrors for proper visi-ility, especially when towing aailer wider than the truck.hen towing, operate the vehicle

t lower speeds than you wouldhen not towing a trailer. The like-

hood of trailer sway is greater atigher speeds.

0 - 3

OWING TRAILERS

railer brakeslectric brakes and manual, auto-atic or surge-type trailer brakes are

afe if installed properly anddjusted to the manufacturer’s spec-ications. The trailer brakes musteet local and Federal regulations. you own a trailer with a hydraulicrake system, do not connect theailer’s hydraulic brake systemirectly to your vehicle’s brake sys-m. The vehicle’s brake system is

nly designed to carry the appropri-te amount of brake fluid for theehicle alone. Connecting a hydrau- trailer braking system could

dversely affect your vehicle’s brak-g performance.OTE:The braking system of the towvehicle is rated for operation atthe GVWR not GCWR.

railer lampsrailer lamps are required on mostwed vehicles. Make sure all run-

ning lights, brake lights, turn signalsand hazard lights are working. Con-sult your authorized UD Trucksdealer or the authorized dealer/man-ufacturer of your trailer for instruc-tions to connect the trailer lamps tothe tow vehicle.

Safety chainsAlways connect the trailer’s safetychains to the frame or hook retainersof the vehicle hitch.To connect the trailer's safety chains,cross the chains under the trailertongue and allow slack for turningcorners. If you use a rental trailer,follow the instructions that the rentalagency provides to you.

Driving while you towWhen towing a trailer:Turn off and do not use the cruise

control.Consult your local motor vehicle

speed regulations for towing atrailer.

Anticipate stops and brake gradu-ally.

Dtr

Se

If yyouque“Vesection

Tra

GeE

ca

Mbn

Cbtr

Wawlih

Page 149: Manual Nissan Ud

10 - 4

VEHICLE OPERATION

STARTING THE ENGINE

Before starting the engine, check tobe sure that:The MTM is shifted to the neu-

tral position. The engine canonly be started when the shiftlever is in the N (Neutral) posi-tion.For ATM, put the selector lever(switch) into the P (Park) or N(Neutral) position.

The transmission PTO switch(optional) is turned off.

The parking brake is pulled tothe PARK position.

The power steering fluid levelis proper.

The engine oil level and enginecoolant level are proper.

Normal temperature conditions:Depress the clutch pedal (Not avail-able with automatic transmission)fully, and then turn the ignition key tothe START position.

When turning, make wide turns toallow trailer tires to properly clearany obstacles.

Be prepared for trailer sway due tobuffeting when larger vehiclespass in either direction.

LoadingKeep the center-of-gravity low for

best handling.Trailer loads should be evenly dis-

tributed front to back and left toright.

Never exceed truck, trailer,receiver, ball, tongue, tire or cou-pler loading recommendations.

BrakingThe trailer brakes must be

inspected and serviced at intervalsspecified by the trailer manufac-turer. This includes shoes, drums,and trailer brake magnets.

Electric brakes also require peri-odic adjustment to keep the shoesproperly spaced.If the brakes get hot when driving

or if they will not hold, chances arethat they need adjustment.

Anticipate the need to stop; allowadditional distance and time tostop than normal.

Do not apply the trailer brakes forextended periods of time as theycan overheat and lose their effec-tiveness.

Backing upPractice backing up, particularly if

you are a novice. Turn the steeringwheel to the right to move thetrailer’s rear end to the right.

Sharp steering movements maycause the trailer to jackknife or goout of control.

TiresAll trailer tires should be of the

same size and construction.Select tires that meet the trailer

loading requirements.Always check tow vehicle and

trailer tire pressure before towing.

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1

VEHICLE OPERATION

Cwe1

2

N

urn the ignition key to ON posi-on before depressing theccelerator pedal. When thenition key is at LOCK or ACC

osition, the fuel system func-on for cold weather will notperate.ight after stalling the engine,e engine start control systemhibits the cranking for about 1

econd to avoid the damage fore starter.hen the engine does not start

n the first attempt, wait approx-ate 30 seconds before trying

gain.

0 - 5

old weather conditions (Vehicle ith intake air heater system: If so quipped):.When the engine coolant tempera-ture is low, turn the ignition key toON position. The indicator lightturns on and pre-heating is carriedout.

.After the indicator light turns off,turn the ignition key to the STARTposition and start the engine. Afterstarting the engine, the indicatorlight will illuminate again and after-heating will be performed for a settime.OTE:The engine start control systemis equipped with an automaticanti-overheating device. (Gener-ally, when attempting to start theengine for about 15 secondsand doing so three or four timesin a row, this will cause theoperation of the automatic anti-overheating device.)When the anti-overheatingdevice is operated, a warningand a warning message will bedisplayed. These warnings indi-

cate that the anti-overheatingfunction is operating.This message displays the cool-ing time (10 to 15 minutes regu-larly) that is required for thestarter to operate again.

When the PTO engine start inter-rupt warning is operated, awarning and a warning messagewill be displayed. These warn-ings indicate that the engine isunable to start because the PTOswitch is in the ON position.If this occurs, turn the PTOswitch to the OFF position, andthen start the engine.

Ttiaigptio

Rthinsth

Woima

Page 151: Manual Nissan Ud

10 - 6

VEHICLE OPERATION

3.When the engine starts, make surethe gearshift lever is still in neutralIf the vehicle is equipped withautomatic transmission, the selec-tor lever is still in the N (Neutral) orP (Parking) position, and releasethe clutch pedal (Not available withautomatic transmission).

Do not keep the starter engagedfor more than 15 seconds at atime.

WARNING

Do not start or idle the enginein inadequately ventilatedareas. Carbon monoxide poi-soning can cause uncon-sciousness and is potentiallylethal.

Avoid breathing exhaustfumes. If you suspect thatexhaust fumes are entering thecab, stop the vehicle immedi-ately. Open all windows, andhave the vehicle inspected andrepaired immediately. Do notdrive the vehicle if you noticethe presence of any exhaustfumes in the cab.

Do not use ether or other start-ing aids which are flammable.

Avoid attempting to start yourvehicle by pushing or towing.Instead, use the jump startingprocedure or tow your vehicle,as described in this manual, tothe nearest service station.

Page 152: Manual Nissan Ud

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VEHICLE OPERATION

hen the knob is turned to theght (clockwise), the modehanges from automatic idlingode to manual adjustment mode,e engine speed will increase,

nd adjustment up to about 980m will become possible.

0 - 7

WARMING UP ENGINE

To avoid shortening engine life,engine warm-up is necessary. Thewarm up is performed by adjustingthe engine throttle control knob.

Adjusting engine idling speed

The automatic adjustment of engine idling speed.When the engine throttle control

knob is turned all the way to theleft, automatic idling mode will bereached, and the idling speed willbe adjusted automatically accord-ing to the temperature of enginecoolant.Refer to "Engine throttle controlknob" on page 7-53.

Normally, the knob should beturned all the way to the left (coun-terclockwise). W

ricmtharp

CAUTION

Do not attempt to start theengine with a power source ofmore than 12 volts. After the engine starts, do notturn the ignition key to theSTART position. This couldcause damage to the startermotor and/or engine.Do not attempt to start thevehicle until the intake airheater indicator light goes out.

Page 153: Manual Nissan Ud

10 - 8

VEHICLE OPERATION

Activation1.Put the parking brake in the PARK

position.2.Shift the gear shift lever to the “N”

position.3.Start the engine and turn the

warm-up switch to ON to engagethe exhaust brake, and the idlespeed increases and begin enginewarm-up. During this time, theswitch’s built-in indicator light willilluminate.

WARNING

Do not warm up the engine inan insufficiently ventilatedlocation such as a garage orindoors. This can be danger-ous and can cause carbonmonoxide poisoning.

The standard idling speed is 550rpm.

Warm-up has been completedwhen the idling speed drops.

The manual adjustment of engine idling speed.When the engine has started,

gradually release the acceleratorpedal and set a slightly higheridling speed with the throttle con-trol knob.

Perform warm-up operation untilthe needle of the engine coolanttemperature gauge starts to move.

When the needle of the enginecoolant temperature gauge startsto move, return the throttle controlknob to the standard idling speed.

NOTE:Never drive with higher idling

speed than standard. That couldresult in excessive fuel con-sumption and reduced clutchlife.

Failure to warm up the enginewill shorten engine life.

To warm up more quickly

If you wish to make the heater ordefroster work more quickly afterstarting the engine, or to enhancethe effectiveness of the heater incold weather, activate the exhaustbrake and the idle speed increases.

WARNING

Driving with the throttle con-trol knob set to any speedhigher than standard idlingspeed is dangerous and couldcause the vehicle to suddenlyaccelerate, even when thevehicle is stopped with theengine running.

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VEHICLE OPERATION

N

OPPING THE ENGINEer vehicle operation, idle theine for 3 to 5 minutes before

pping the engine. After the engineooled by idling, stop the engine.low the instructions in the "Enginep" on page 7-4. Turn the ignition to the OFF position.

0 - 9

OTE:For information regarding pre-cautions when using thewarm-up switch, refer to the"Engine warm-up switch" onpage 7-54.

DeactivationTurn the warm-up switch to OFF toturn off the indicator lights and can-cel engine warm-up.

STAftengstois cFolstokey

Page 155: Manual Nissan Ud

10 - 10

VEHICLE OPERATION

4.Check the operation of the brakesbefore you begin the descent of anextended or steep grade.

WARNING

Operating the engine in the redzone of the tachometer cancause severe engine damageand serious injury.

Do not downshift if the enginespeed is in the red zone of thetachometer.

DRIVING ON GRADES1.When driving up a grade, operate

the vehicle in a lower transmissiongear at the engine speed (about1,400 rpm) for which the enginedevelops its maximum torque.Sustained high speed operationmay cause severe engine failure.

2.When descending a grade, firstuse engine braking by selectingthe same gear which was used orwould be appropriate for going upthe grade. Supplement the enginebraking with exhaust braking andfinally with service brakes, as nec-essary, to maintain a safe vehiclespeed.

3.When downshifting, wait untilengine speed corresponds to theroad speed of the next lower gearbefore shifting. Do not allow theengine to overspeed. Do not oper-ate the engine at speeds within thetachometer red zone.

WARNING

Do not rest your foot on thebrake pedal or use the footbrakes for extended periods.Such can cause the brakedrums to overheat, the liningsto wear excessively and/orcause a drop in braking pres-sure resulting in a reduction inbraking effectiveness andincreased stopping distances.

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VEHICLE OPERATION

DC1

2

3

ERATING WITH MANUAL ANSMISSIONr UD Trucks vehicle is equipped

h a manual transmission with 6ard and 1 reverse gears. Ther shift pattern is shown on the

ft lever knob.

iliarize yourself and others oper-g the vehicle with the manualsmission, the gear shift pattern clutch operation. When using

clutch, be sure that the clutch isy engaged or disengaged. Neverrate the vehicle with the clutchtially engaged.

0 - 11

RIVING IN DIFFICULT ONDITIONS.Ice, snow, loose sand, mud or wetsurfaces present hazardous driv-ing conditions. Tire traction isdecreased, stopping distancebecomes unpredictable and heavybraking, sudden maneuvers orexcessive speeds can result inloss of vehicle control.

.On slippery surfaces, avoid quickmovements of the steering wheelor transmission shift lever. Gentlyapply the brakes steadily andevenly to avoid skidding and wheellockup. Decrease your vehiclespeed and allow for extra stoppingdistances.

.Always make sure your tires are ingood condition. Badly worn or

improperly inflated tires providepoor traction and increase the haz-ards of driving on slippery sur-faces.

4.A loaded vehicle handles differ-ently from an empty one. Be pre-pared for longer stoppingdistances, slower acceleration,more leaning on curves, differentsteering response. A vehicleshould be evenly loaded.

5.When driving on slippery surfacesor on curves, be sure to use theservice brake together with theexhaust brake.

OPTRYouwitforwgeashi

Famatintranandthefullopepar

CAUTION

When a wheel spins when trac-tion is poor, do not spin thewheels for a long time or thedifferential could seize up. CAUTION

Never drive the vehiclethrough a flooded area. If thewater is deep enough to reachthe bottom of the oil pan, thiswill cause failure of the coolingfan, slippage of the drive belts,or failure of the engine due towater sucked into the airintake.

Page 157: Manual Nissan Ud

10 - 12

VEHICLE OPERATION

WARNING

To avoid engine and clutch fail-ure which may result in seriousinjury: Do not operate your vehicle

with a worn or damagedclutch.

Do not operate the vehicle withyour foot resting on the clutchpedal.

Do not use the clutch to holdyour vehicle on a grade.

To reduce the possibility of lossof vehicle control:Do not allow the vehicle to

coast with the clutch pedaldepressed or with the trans-mission in neutral.

Do not operate the vehicle withthe clutch partially engaged.

Always use 1st gear whenstarting to move the vehicle.

CAUTION

Do not ride the clutch pedal.“Riding the clutch” by restingyour foot on the clutch pedalwhile driving can lead to pre-mature clutch failure.

Avoid shifting the transmis-sion into first gear while thevehicle is moving. Shifting intofirst gear while moving maydamage the transmission.

Stop the vehicle completelybefore shifting from forward toreverse or from reverse to for-ward.

When shifting down or up, shiftthe lever being careful not topass the correct shift gate.When shifting from 6th to 5thgear, push the shift lever to theright. If this is not done duringshifting 6th to 5th, a misdown-shift to 3rd gear may occur,resulting in engine overspeed-ing and possible engine orclutch damage.

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VEHICLE OPERATION

D

U

1

2

elease the clutch pedal. Whenownshifting, wait until enginepeed corresponds to the roadpeed of the next lower gearefore shifting. Do not overspeede engine.

0 - 13

ouble-clutch operation

se the following double-clutch technique when shifting:

.Fully depress the clutch pedal todisengage the clutch.

.With the clutch pedal fullydepressed, shift the gear shift leverto the neutral position.

3.Release the clutch pedal. Whendownshifting, raise the enginespeed using the accelerator pedal.

4.Fully depress the clutch pedalagain.

5.While holding the pedal down, shiftto the next gear.

6.Rdssbth

Page 159: Manual Nissan Ud

10 - 14

VEHICLE OPERATION

1000 and 2200 series

2500 series

(P): Park Position —This position is used when starting

the engine, for warming up theengine, and when stopped orparked. The engine can only be

OPERATING WITH AUTOMATIC TRANSMISSIONYour UD trucks vehicle may beequipped with an optional automatictransmission. The automatic trans-mission has the operation flexibilityof manual selecting and holding inlower driving ranges.This permits the driving selection ofthe most suitable forward gear rangeto match varying road and load con-ditions.

ALLISON 1000, 2200 and 2500 automatic transmission (1000: Optional for UD1800 and UD2000)(2200: Optional for UD2300 and UD2600)(2500: Optional for UD3300)

The Allison 1000, 2200 and 2500automatic transmissions have 5 for-ward and 1 reverse gear ranges.

Page 160: Manual Nissan Ud

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VEHICLE OPERATION

U

Tinp(R

TE:hen shifting from Neutral to

ny other range, approximately second is required for theansmission clutch to connect. the accelerator pedal isepressed during this time,xcessive stress is placed one transmission. Wait until the

lutch has connected and thenradually depress the accelera-r pedal.

: Driving Position —his is the position used duringormal driving.ears will change from 1 - 5 whene overdrive (O/D) switch is on,

nd from 1st to 4th when it is off.

0 - 15

started when the shift lever is inthe P (Park) or N (Neutral) posi-tion.When shifting from Park to anyother range, depress the brakepedal while shifting. Shifting is not done if the enginespeed is high (1,000 rpm or more).

se P (Park) for the following.to turn on or turn off the engineto check vehicle accessoriesto operate the engine in idle forlonger than five minutesfor stationary operation of thepower takeoff (if your vehicle isequipped with a PTO)his position places the transmission N (Neutral) and engages the parkawl.): Reverse Position —This position is used when movingthe vehicle backwards. You mustfirst stop the vehicle before shiftingfrom a forward gear to Reverse, orfrom Reverse to a forward gear.This range cannot be shifted towhile driving (although the shift

lever will move). At this time theSHIFT LIMIT warning light comeson. If this occurs, stop the vehicle,and shift first to P (Park) or N(Neutral). Then depress the brakepedal and shift to the desired driv-ing range.

(N): Neutral Position —This position is used when starting

the engine, for warming up theengine, and when stopped. Theengine can only be started whenthe shift lever is in the P (Park) orN (Neutral) position.

When shifting from Neutral to adriving range, depress the brakepedal while shifting. At this timethe SHIFT LIMIT warning light illu-minates. If this occurs, return theshift lever to the P (Park) or N(Neutral) position, then depressthe brake pedal and shift to thedesired driving range.

Shifting will not be done if theengine speed is high (1,000 rpm ormore).

NOW

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VEHICLE OPERATION

WARNING

Without applying the servicebrakes, parking brake, or emer-gency brake:Do not make shifts from R

(Reverse) to N (Neutral).Selecting N (Neutral) does notapply vehicle brakes unless anauxiliary system to apply theparking brake is installed.

Do not make shifts from N(Neutral) to a forward range orfrom N (Neutral) to R (Reverse)to avoid sudden movement ofthe vehicle.

Do not make shifts from a for-ward range to N (Neutral).Selecting N (Neutral) does notapply vehicle brakes unless anauxiliary system to apply theparking brake is installed.

(3): Third Range —This position is used when engine

braking is needed while the vehicleis descending a slope. Shiftingbetween gears 1 - 3 is done auto-matically.

(2): Second Range —This position is used when strong

engine braking is needed. Shiftingbetween gears 1 - 2 is done auto-matically.

(1): First Range — This position can be used during

rough road conditions, when free-ing the vehicle from mud or deepsnow, when driving at very slowspeed through narrow spaces,when climbing or descendingsteep slopes, or when the maxi-mum amount of engine brakingforce is required. The transmissionremains in 1st gear and does notshift.

WARNING

Always apply the servicebrakes when selecting R(Reverse). The range selectedmay not be obtained, resultingin unexpected vehicle motion.

Do not allow the vehicle tocoast in N (Neutral). If you letthe vehicle coast in N (Neu-tral), there is no engine brak-ing and you could lose control.Coasting can also causesevere transmission damage.

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VEHICLE OPERATION

perating with automatic nsmission>

eck before engine startlways use the right foot to oper-te the accelerator pedal and therake pedal in order to preventepressing either by accident.ift lock systemodel without P position00 series)>hen shifting the selector lever fore first time after turning the igni-

on key to the ON position, theelector lever cannot be shiftedom N to another position if therake pedal is not depressed.oreover, when the shift lever is

CAUTION

o not idle in R (Reverse) or DDrive) for more than 5 min-tes. Doing so may causeransmission overheating andamage. Always use P (Park)r N (Neutral) if you need to

dle over 5 minutes.

0 - 17

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WARNING

D (Drive) and other forwardranges may not be obtaineddue to an active inhibitor. Therange selected may not beobtained, resulting in unex-pected vehicle motion. Alwaysapply the service brakes whenselecting D (Drive) or other for-ward ranges.The transmission incorpo-rates a hold feature to prohibitupshifting above the rangeselected during normal driv-ing. For downhill operation,select a lower transmissionrange. If the engine-governedspeed is exceeded in the heldrange, however, the transmis-sion may upshift to the nexthigher range. To avoid loss ofvehicle control, use the vehiclebrakes to prevent exceedingengine governed speed in theheld range.

WARNING

If you just downshift or justuse service brakes when goingdownhill, you can lose controland cause injury and/or prop-erty damage. To avoid loss ofcontrol, use a combination ofdownshifting, braking, andother retarding devices.Downshifting to a lower trans-mission range increasesengine braking and helps youto maintain control. The trans-mission has a feature to pre-vent automatic upshiftingabove the lower rangeselected. However, duringdownhill operation, if enginegoverned speed is exceeded inthe lower range, the transmis-sion may upshift to the nexthigher range. This will reducebraking and could cause a lossof control. Apply the vehiclebrakes or other retardingdevice to prevent exceedingengine governed speed in thelower range selected.

D(utdoi

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VEHICLE OPERATION

<Model with P position (1000 and 2200 series)>The selector lever cannot be

shifted from the P position if thebrake pedal is not depressed.

When the ignition key is in theACC or LOCK position, the selec-tor lever cannot be shifted from theP position even if the brake pedalis depressed.

When the selector lever is in anyposition other than the P position・The key cannot be removed from

the ignition key switch. Place theselector lever in the P positionand then remove the key.

・The ignition key cannot be turnedfrom ACC to the LOCK position.

When shifting the selector leverfrom P to another position,depress the brake pedal first andthen operate the lever. If the leveris operated first, it does not moveso that the shift lock mechanism isnot released.

If the selector lever cannot beshifted from the P position evenwhen the brake pedal is

left engaged in the N position forabout 5 minutes even after shiftingthe selector lever for the secondtime, it cannot be shifted from theN position. In this case, depressthe brake pedal and operate theselector lever.

When the ignition key is in theACC or LOCK position, the selec-tor lever cannot be shifted from Nto another position even if thebrake pedal is depressed.

When the selector lever is in anyposition other than the N position・The key cannot be removed from

the ignition key switch. Placethe selector lever to the Nposition and then remove the key.

・The ignition key cannot be turnedfrom ACC to the LOCK position.

When shifting the selector leverfrom N to another position,depress the brake pedal first andthen operate the lever. If the leveris operated first, it does not moveso that the shift lock mechanism isnot released.

If the selector lever cannot beshifted from N to another positioneven when the brake pedal isdepressed, press the shift lockrelease button. While pressing thebutton, the selector lever can beshifted.

NOTE: If this situation occurs, contact

your nearest UD Trucks dealerfor inspection.

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VEHICLE OPERATION

N

E

S

hen parking, first stop the vehi-le, then shift to P (Park) or N

eutral). Then slowly release therake pedal and check that theck has been engaged. Then

rmly set the parking brake.ach time you park the vehicle orave the operator’s station withe engine running, do the follow-g..Bring the vehicle to a completestop using the service brake.

.Ensure that the engine is at lowidle rpm.

.Put the transmission in P (Park)or N (Neutral).

.Engage the P (Park) range byslowly releasing the servicebrake.

.Apply the emergency brake and/or parking brake, if present, andmake sure it is properlyengaged.

.If the operator’s station will beunoccupied with the engine run-ning, chock the wheels and takeany other steps necessary tokeep the vehicle from moving.

0 - 19

depressed, press the shift lockrelease button. While pressing thebutton, the selector lever can beshifted.OTE:If this situation occurs, contactyour nearest UD Trucks dealerfor inspection.

ngine startCheck that the parking brake hasbeen pulled up.Check that the shift lever is in theP (Park) or N (Neutral) position,then start the engine. (The enginewill not start if the lever is inanother position.) Check that thewarning light turns off after theengine has started.tarting to move the vehicleDepress the brake pedal with yourright foot. Select a gear range. Tomove the vehicle forward, select D(Drive), to move backwards selectR (Reverse). The gear will not shift if the enginespeed is high.

Release the parking brake. Liftyour foot off of the brake pedal.

When traveling forward, accelera-tion begins from 1st gear. Accord-ing to the engine load and speed,the transmission will automaticallyshift from 1st gear, to 2nd, to 3rd...up to the maximum gear for theselected range.

NOTE:The engine protection function

may provide torque derating toprevent the engine from beingdamaged, in this case, also shiftshock might occur.

Stopping and parkingWhen stopping temporarily, leave

the shift lever in the D (Drive) posi-tion. Be sure to keep the brakepedal depressed with the rightfoot. In this way, there is no needto return the shift lever to N (Neu-tral).

When stopping for 5 minutes orlonger, shift to the N (Neutral) or P(Park) position.

Wc(Nblofi

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2

3

4

5

6

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VEHICLE OPERATION

Downshift or reverse inhibitor fea-tureThe transmission hydraulic systemwill not permit a shift into any forwardgear at a speed that will causeexcessive engine overspeed. Anylower forward range may be selectedat any time, but the actual engage-ment of the gears in that range willnot occur until road speed is reduced— downshifting is progressive asroad speed decreases. The inhibitoreffect will cause downshifts to occurat slightly higher speeds than normalautomatic downshifts.If the shift lever is accidentallymoved to reverse while traveling for-ward, the transmission is designednot to shift into reverse gear untilroad speed is very low. To avoid shiftshock, always come to a full stopbefore shifting from forward toreverse or from reverse to forward.

NOTE:When the vehicle is in motion,

attempting to shift to the P(Park) range may produce only aclicking sound without actuallyshifting. Be sure to use thebrake to stop the vehicle beforeshifting to P (Park).

Accelerator pedal controlThe position of the accelerator pedalinfluences the automatic shifting.When the pedal is fully depressed,the transmission will automaticallyupshift near the governed speed ofthe engine. A partially depressedposition of the pedal will cause theupshifts to occur at a lower enginespeed.

WARNING

When depressing the accelera-tor pedal or when the enginespeed is higher than the idlingspeed, do not shift the selectorlever from N to the forward orR range.It is very dangerous as thevehicle might jump suddenlyforward or backward. Thetransmission might also bedamaged.

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UTsramuvwdPTtraathDHprehalowtovtiuItlo

WARNING

o avoid injury or propertyamage caused by suddenovement of the vehicle, do

ot make shifts from N (Neu-ral) to a forward range or RReverse) when the acceleratoredal is depressed. The vehi-le will lurch forward or rear-ard and the transmission cane damaged. Avoid this condi-ion by making shifts from NNeutral) to a forward range or (Reverse) only when the

hrottle is closed.

0 - 21

sing the engine to slow the vehicleo use the engine as a braking force,hift the selector to the next lowernge. If the vehicle is exceeding theaximum speed for a lower gear,se the service brakes to slow theehicle to an acceptable speedhere the transmission may beownshifted safely.arking brake (2500 series)here is no park position in theansmission shift pattern. Therefore,lways put the selector in neutralnd apply the parking brake to holde vehicle when it is unattended.riving on ice or snowere is where all of your ability as arofessional driver comes into focusgardless of what transmission you

ave. If possible, reduce your speednd select a lower range before youse traction. Select the range thatill not exceed the speed you expect maintain. Accelerate or decelerate

ery gradually to prevent losing trac-on. It is very important to slow grad-ally when a lower range is selected. is important that you reach thewer range selected before attempt-

ing to accelerate. This will avoid anunexpected downshift during accel-eration.Rocking outIf the vehicle is stuck in deep sand,snow, or mud, it may be possible torock it out. Shift to D (Drive) andapply steady, light throttle (never fullthrottle). When the vehicle hasrocked forward as far as it will go,apply and hold the vehicle servicebrakes. Allow the engine to return toidle; then select R (Reverse).Release the brakes and apply asteady, light throttle and allow thevehicle to rock in R (Reverse) as faras it will go. Again, apply and holdthe service brakes and allow theengine to return to idle. This proce-dure may be repeated in D (Drive)and R (Reverse) if each directionalshift continues to move the vehicle agreater distance. Never make N(Neutral)-to-D (Drive) or directionalshift changes when the engine rpmis above idle.

Tdmnt(pcwbt(Rt

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VEHICLE OPERATION

<PTO engagement — Sliding gear PTOs>

Engage the PTO drivetrain as fol-lows.

CAUTION

Do no use or install a slidinggear PTO where the slidinggear meshes directly with thePTO driver gear. The PTOdriver gear may be damagedwhen the sliding gear slidesinto the PTO drive gear, pro-ducing metal particles that cancause transmission damage.

CAUTION

Never engage the sliding gearPTO by clashing the gearteeth. This may damage thePTO unit. Stop the clashing byreleasing the vehicle brakesand allowing the vehicle tomove slightly or by moving theshift selector from a driverange to N (Neutral) and backto a drive range.

Converter driven PTO

<PTO configuration>The PTO is mounted on the left and/or right side of the transmissionhousing. The PTO drivetrain consistsof a large drive gear in the transmis-sion, an idler gear arrangement, anda smaller driven gear in the PTO.The drive gear is integral to thetransmission rotating clutch hous-ing, which rotates at the same speedas the torque converter turbine. Withthis drive configuration the PTO

rotates in the same direction as theengine.Two types of transmission-mountedPTOs may be used with these trans-mission models.A constant-drive PTO is used in

applications which require full-timePTO operation. The PTO drivengear is in constant mesh with thedrive gear and cannot be disen-gaged.

Clutch drive and sliding gear PTOsare used in applications whichrequire only part-time operation ofthe PTO or the capability toengage or disengage the drivenequipment. For clutch drive PTOs,the following applies: 1) theengagement/disengagement pro-vision is facilitated by a hydraulicclutch mechanism in the PTOassembly; 2) the PTO can beengaged or disengaged at anytime (except at engine speeds thatexceed drive speed limits imposedon the driven equipment).

CAUTION

If the wheels are stuck and notturning, do not apply fullpower for more than 30 sec-onds in either D (Drive) or R(Reverse). Full power for morethan 30 seconds under theseconditions will cause thetransmission to overheat. If thetransmission overheats, shiftto N (Neutral) and operate theengine at 1,200 to 1,500 rpmuntil it cools (2 to 3 minutes).

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VEHICLE OPERATION

Dlo

<TPtios

transmission operates in eitherverter mode or torque converter

tch mode. In converter mode, theue converter (lockup) clutch is

engaged and the PTO is drivenugh the torque converter, pro-ing a torque at the PTO driver that is always greater than the

ut torque. In torque convertertch mode, the torque converterkup) clutch is engaged, the PTOetrain is driven at a speed pro-tional to the engine speed. PTO drive is normally in contin-s converter mode operation

en the transmission is in P (Park) R (Reverse). Torque converter

tch operation in N (Neutral) isilable for some applications. If PTO is used with the transmis-n in D (Drive) or another forwardge, transmission shifts (both con-ter/torque converter clutch modefts and shifts between gears) areed on the automatic shiftuence of the transmission shifttrols. PTO drive gear speed willaffected each time a shift occurs.h the vehicle stopped and theine at idle, PTO output speed is

0 - 23

Turn the PTO switch on.Set the engine speed at idle.Place shift selector lever in D(Drive).Shift the PTO power shift clutchlever to Drive.Bring the engine up to speed.Shift to N (Neutral).

isengage the PTO drivetrain as fol-ws.Stop the vehicle.Idle the engine.Set the brake.Place the shift selector in a driverange.Stop the PTO-driven equipment.Disengage the power takeoff.Return the transmission shiftselector to N (Neutral).Turn the PTO switch to off.

PTO Engagement—Clutch Driven>he PTO will engage only when theTO switch is on, the throttle posi-on is low, and engine speed andutput speed are within the limitspecified by body builders.

<PTO operation> Theconclutorqnotthroducgeainpclu(locdrivporTheuouwhandcluavathesioranvershibasseqconbe Witeng

CAUTION

Do not exceed the engagementand operational speed limitsimposed on the driven equip-ment during the operation ofthe PTO. Exceeding the speedlimits produces high hydraulicpressure in the PTO that candamage the PTO components.Consult the vehicle manufac-turer’s literature for thesespeed limits.

Some vehicles creep in rangeat low vehicle speeds whilemaintaining a specified enginespeed for PTO operation (e.g.,paint stripers and feed lottrucks). For PTO operation atlow speeds, do not use thebrakes to limit vehicle speedwhile using the throttle tomaintain an engine speedabove idle when the transmis-sion is in range. Such opera-tion will cause thetransmission to overheat.Extended operation at elevatedtemperatures will result intransmission damage.

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VEHICLE OPERATION

ALLISON 3000 automatic transmission (Optional for UD2600 and UD3000)

The Allison automatic transmissionshave 6 forward and 1 reverse gearranges.

Selector switchThe Range selector switch is used toshift the gear to the desired drivingrange from among 6 forward rangesand the reverse range. When theswitch is pushed, the selected rangeis displayed on the left side of thedigital display of the selector. Withthe or switch, the range canbe selected. While driving forward,each time the switch is pushedonce, the selector range is shifteddownward by one gear, and eachtime the switch is pushed once,the selector range is shifted upwardby one gear. The selected range isdisplayed on the left side of the digi-tal display of the selector, and therange in operation on the right side.

dependent upon the transmissiongear selection. If the transmission is in D (Drive)

or R (Reverse), the PTO outputspeed is zero.

If the transmission is in N (Neutral)or P (Park), the PTO output willrotate slowly.

In some vehicles, the transmissionwill shift into N (Neutral) regardlessof the shift selector position underthe following conditions. the PTO is enabled the transmission output speed is

near zero the throttle position is near zeroTo reselect a range, the operatormust shift into N (Neutral), then shiftto the desired range.

<PTO overspeed protection>

CAUTION

Do not exceed the engagementand operational speed limitsimposed on the driven equip-ment during the operation ofthe PTO. Exceeding the speedlimits produces high hydraulicpressure in the PTO-drivencomponents that can damagethe PTO-driven components.Consult the vehicle manufac-turer’s literature for thesespeed limits.

When the PTO is disengageddue to overspeed, the PTO willbe automatically re-engaged atuser specified speed, which istypically relatively low. Theresultant re-engagement shockcould cause damage to a high-inertia PTO system.

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VEHICLE OPERATION

n and digital display

tomatic transmis-sion range

RN

1 to 6

1 to 5

1 to 4

1 to 3

1 to 2

1

0 - 25

Relationship between switch operatio

Range operation

Digital displayAu

Selection range

Range in operation

R R RN N ND 6 1 to 6

Once 5 1 to 5

Twice 4 1 to 4

3 times 3 1 to 3

4 times 2 1 to 2

5 times 1 1

Page 171: Manual Nissan Ud

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VEHICLE OPERATION

WARNING

Always apply the servicebrakes when selecting R(Reverse). The range selectedmay not be obtained, resultingin unexpected vehicle motion.

Do not allow the vehicle tocoast in N (Neutral). If you letthe vehicle coast in N (Neu-tral), there is no engine brak-ing and you could lose control.Coasting can also causesevere transmission damage.

WARNING

Without applying the servicebrakes, parking brake, or emer-gency brake:Do not make shifts from R

(Reverse) to N (Neutral).Selecting N (Neutral) does notapply vehicle brakes unless anauxiliary system to apply theparking brake is installed.

(R): Reverse Position —This position is used when moving

the vehicle backwards. Thebackup light comes on and theback buzzer sounds and the backbuzzer sounds in the cabin.

(N): Neutral Position —This position is used when starting

the engine, for warming up theengine, and when stopped.

(D): Driving Position —This is the position used during

normal driving. Shifting betweengears 1 - 6 is done automatically,according to engine load andspeed.

(5): Fifth Range —This position is used when a small

amount of engine braking isneeded. Shifting between gears 1 -5 is done automatically.

(4): Fourth Range —This position is used when engine

braking is needed while the vehicleis descending a slope. Shiftingbetween gears 1 - 4 is done auto-matically.

(3): Third Range —This position is used when strong

engine braking is needed while thevehicle is descending a slope.Shifting between gears 1 - 3 isdone automatically.

(2): Second Range —This position is used when strong

engine braking is needed. Shiftingbetween gears 1 - 2 is done auto-matically.

(1): First Range —This position can be used during

rough road conditions, when free-ing the vehicle from mud or deepsnow, when driving at very slowspeed through narrow spaces,when climbing or descendingsteep slopes, or when the maxi-mum amount of engine brakingforce is required. The transmissionremains in 1st gear and does notshift.

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VEHICLE OPERATION

ownshifting to a lower trans-ission range increases

ngine braking and helps youo maintain control. The trans-ission has a feature to pre-

ent automatic upshiftingbove the lower rangeelected. However, duringownhill operation, if engineoverned speed is exceeded inhe lower range, the transmis-ion may upshift to the nextigher range. This will reduceraking and could cause a lossf control. Apply the vehiclerakes or other retardingevice to prevent exceedingngine governed speed in theower range selected.

0 - 27

Do not make shifts from N(Neutral) to a forward range orfrom N (Neutral) to R (Reverse)to avoid sudden movement ofthe vehicle.Do not make shifts from a for-ward range to N (Neutral).Selecting N (Neutral) does notapply vehicle brakes unless anauxiliary system to apply theparking brake is installed.

WARNING

D (Drive) and other forwardranges may not be obtaineddue to an active inhibitor. Therange selected may not beobtained, resulting in unex-pected vehicle motion. Alwaysapply the service brakes whenselecting D (Drive) or other for-ward ranges.

The transmission incorpo-rates a hold feature to prohibitupshifting above the rangeselected during normal driv-ing. For downhill operation,select a lower transmissionrange. If the engine-governedspeed is exceeded in the heldrange, however, the transmis-sion may upshift to the nexthigher range. To avoid loss ofvehicle control, use the vehiclebrakes to prevent exceedingengine governed speed in theheld range.

WARNING

If you just downshift or justuse service brakes when goingdownhill, you can lose controland cause injury and/or prop-erty damage. To avoid loss ofcontrol, use a combination ofdownshifting, braking, andother retarding devices.

Dmetmvasdgtshbobdel

Page 173: Manual Nissan Ud

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VEHICLE OPERATION

<Operating with automatic trans-mission>

Check before engine startAlways use the right foot to oper-

ate the accelerator pedal and thebrake pedal in order to preventdepressing either by accident.

Engine startCheck that the parking brake has

been pulled up.Before starting the engine, make

sure that “N N” is displayed on thedigital display. The engine can onlybe started when “N N” is displayedon the digital display. If “N N” is notdisplayed, push the N switch todisplay “N N”.

NOTE:You must first stop the vehicle

before shifting from a forwardgear to Reverse, or fromReverse to a forward gear.

The maximum speed varies byrange. Select an appropriaterange depending on situations.

When shifting to lower speedgears, the transmission is donewithin the range where anengine overrun is not caused.

When the vehicle speed getsexcessively high on adownslope, etc., the transmis-sion may upshift to a higherrange than the selected rangedue to activation of the safetydevice. In that case, use the ser-

vice brake to drive at a safespeed. CAUTION

Do not idle in R (Reverse) or D(Drive) for more than 5 min-utes. Doing so may causetransmission overheating anddamage. Always use N (Neu-tral) if you need to idle over 5minutes.

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VEHICLE OPERATION

N

S

g to the engine load and speed,e transmission will automatically

hift from 1st gear, to 2nd, to 3rd...p to the maximum gear for theelected range.TE:hifting with the power modewitch can be done only duringe engine running.

he engine protection functionay provide torque derating to

revent the engine from beingamaged, in this case, also shifthock might occur.

CAUTION

f the phenomenon in whichpshifts and downshifts areepeated (shift hunting) occurshile driving, shift to a lowerpeed gear range using the

switch.

0 - 29

OTE:After the engine is started, warmup the engine. When the fluidtemperature is low during win-tertime, only “N”, “R” and thelowest speed gear of “D” can beused. When the engine can be startedin any range other than “N”,there is something wrong. Con-tact the nearest authorized UDTrucks dealer. Avoid attempting to start yourvehicle by pushing or towing.

tarting to move the vehicleWith the power mode switch,select normal or power mode.

Keeping the brake pedaldepressed with the right foot, pushthe switch and select the range. Tomove the vehicle forward, select D(Drive), to move backwards selectR (Reverse).

If the engine speed is high, thegear is not engaged. Then, turnthe engine throttle control knob tothe AUTO position to lower thespeed.

To start the vehicle on a levelground, select the “D” range.

Release the parking brake. Liftyour foot off of the brake pedal.

When traveling forward, accelera-tion begins from 1st gear. Accord-

inthsus

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sth

Tmpds

Iurws

Page 175: Manual Nissan Ud

10 - 30

VEHICLE OPERATION

Stopping and parkingWhen stopping temporarily, leave

the shift lever in the D (Drive) posi-tion. Be sure to keep the brakepedal depressed with the rightfoot. In this way, there is no needto return the selector switch to N(Neutral).

When stopping for 5 minutes orlonger, shift to the N (Neutral) posi-tion.

When parking, first stop the vehi-cle, then shift to N (Neutral). Thenslowly release the brake pedal andcheck that the lock has beenengaged. Then firmly set the park-ing brake.

Each time you park the vehicle orleave the operator’s station withthe engine running, do the follow-ing.

1.Bring the vehicle to a completestop using the service brake.

2.Ensure that the engine is at lowidle rpm.

3.Put the transmission in N (Neu-tral).

SHIFT LIMIT warning messageThe selector digital display, LH(selection range) character (can be“R”, “6”, “5”, “4”, “3”, “2” or “1”)flashes when there has been anerror in operation or when the safetycircuit has been activated. It indi-cates that the change from the cur-rent shift to another specified shiftcannot be done.

When the accelerator pedal isgradually depressed to accel-erate the vehicle or to maintainthe constant speed whenclimbing slopes, kickdownmay occur, leading to anincrease of the engine speed,but it is not a failure.

Before shifting the range from“N” to “D” or “R” or from “D”to “R”, allow the engine to idle.Before shifting the range to theposition above the 1st gear,release the accelerator pedal.

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VEHICLE OPERATION

4

56

ATinWthuthpus

he selector switch is accidentallyhed to reverse while traveling for-

rd, the transmission is designed to shift into reverse gear untild speed is very low. To avoid shiftck, always come to a full stopore shifting from forward toerse or from reverse to forward.

ing the engine to slow the vehi-

use the engine as a braking force,ft the selector to the next lowerge. If the vehicle is exceeding theximum speed for a lower gear, the service brakes to slow theicle to an acceptable speed

ere the transmission may benshifted safely.

rking brakere is no park position in thesmission shift pattern. Therefore,ays put the selector in neutral apply the parking brake to hold

vehicle when it is unattended.

ving on ice or snowre is where all of your ability as afessional driver comes into focus

0 - 31

.Apply the emergency brake and/orparking brake, if present, andmake sure it is properly engaged.

.Slowly release the service brake.

.If the operator’s station will beunoccupied with the engine run-ning, chock the wheels and takeany other steps necessary to keepthe vehicle from moving.

ccelerator pedal controlhe position of the accelerator pedalfluences the automatic shifting.hen the pedal is fully depressed,e transmission will automatically

pshift near the governed speed ofe engine. A partially depressed

osition of the pedal will cause thepshifts to occur at a lower enginepeed.

Downshift or reverse inhibitor fea-tureThe transmission hydraulic systemwill not permit a shift into any forwardgear at a speed that will causeexcessive engine overspeed. Anylower forward range may be selectedat any time, but the actual engage-ment of the gears in that range willnot occur until road speed is reduced— downshifting is progressive asroad speed decreases. The inhibitoreffect will cause downshifts to occurat slightly higher speeds than normalautomatic downshifts.

If tpuswanotroashobefrev

UscleTo shiranmausevehwhdow

PaThetranalwandthe

DriHepro

WARNING

When depressing the accelera-tor pedal or when the enginespeed is higher than the idlingspeed, do not shift the selectorswitch from N to the forward orR range.It is very dangerous as thevehicle might jump suddenlyforward or backward. Thetransmission might also bedamaged.

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10 - 32

VEHICLE OPERATION

When descending slopes or down-shiftingWhen descending a slope, down-

shift to D54321 depend-ing on the conditions of the slopeand use engine braking. In addi-tion, use exhaust braking in combi-nation for safe driving.

Be careful not to let the engineoverrun while driving (especially,descending slopes).

CAUTION

If the wheels are stuck and notturning, do not apply fullpower for more than 30 sec-onds in either D (Drive) or R(Reverse). Full power for morethan 30 seconds under theseconditions will cause thetransmission to overheat. If thetransmission overheats, shiftto N (Neutral) and operate theengine at 1,200 to 1,500 rpmuntil it cools (2 to 3 minutes).

regardless of what transmission youhave. If possible, reduce your speedand select a lower range before youlose traction. Select the range thatwill not exceed the speed you expectto maintain. Accelerate or deceleratevery gradually to prevent losing trac-tion. It is very important to slow grad-ually when a lower range is selected.It is important that you reach thelower range selected before attempt-ing to accelerate. This will avoid anunexpected downshift during accel-eration.

Rocking outIf the vehicle is stuck in deep sand,snow, or mud, it may be possible torock it out. Shift to D (Drive) andapply steady, light throttle (never fullthrottle). When the vehicle hasrocked forward as far as it will go,apply and hold the vehicle servicebrakes. Allow the engine to return toidle; then select R (Reverse).Release the brakes and apply asteady, light throttle and allow thevehicle to rock in R (Reverse) as faras it will go. Again, apply and holdthe service brakes and allow the

engine to return to idle. This proce-dure may be repeated in D (Drive)and R (Reverse) if each directionalshift continues to move the vehicle agreater distance. Never make N(Neutral)-to-D (Drive) or directionalshift changes when the engine rpmis above idle.

WARNING

To avoid injury or propertydamage caused by suddenmovement of the vehicle, donot make shifts from N (Neu-tral) to a forward range or R(Reverse) when the acceleratorpedal is depressed. The vehi-cle will lurch forward or rear-ward and the transmission canbe damaged. Avoid this condi-tion by making shifts from N(Neutral) to a forward range orR (Reverse) only when thethrottle is closed.

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BUaapwaAbaS1

WARNINGo not rest your foot on therake pedal while driving.void extended braking with

he service brakes only. Eitheray cause the brake drums to

verheat, the linings to wearxcessively, and/or cause arop in braking pressureesulting in a reduction inraking effectiveness and

ncreased stopping distances.epeated brake pedal pumpingses air needed for brakingction and reduces brakingffectiveness.ever operate the vehiclehen the AIR PRESSUREarning light is on or the lowir pressure warning buzzer isounding.heck the low air pressurearning system regularly.hen the vehicle has been

arked for long periods in coldlimates, moisture on therake linings may freeze, mak-

ng the brakes inoperative.heck braking action by oper-ting the brakes while drivinghe vehicle at a low speed.

0 - 33

RAKE OPERATIOND1800 thru UD2600 equipped withir-over-hydraulic service brakesnd spring-activated rear wheelarking brakes. UD3300 equippedith full-air service brake and spring-ctivated rear wheel parking brake.uxiliary exhaust braking and engineraking provide additional brakingction.ervice brakes.For normal stops, supplement theservice brakes with engine brakingby downshifting the transmissionat the same time that the servicebrakes are applied.

2.When descending a grade, firstuse engine braking by selectingthe same transmission gear whichwould be appropriate for going upthe grade. Supplement the enginebraking with exhaust braking andfinally with service brakes as nec-essary to maintain a safe vehiclespeed.

3.Do not abruptly apply the brakesexcept in an emergency. Alwaysmaintain sufficient distance fromthe vehicle in front of you. Allow foradditional stopping distance asvehicle load increases and whenoperating your vehicle on slipperyroad surfaces.

WARNING

Avoid applying the servicebrakes when the manual trans-mission/automatic transmis-sion is in neutral. When thetransmission is in neutral,there is neither engine brakingnor exhaust braking. Thisresults in an increased load onthe service brakes and even-tual reduced braking effi-ciency.

CAUTIONDriving through deep water

may get the wheel brakes wetand stopping distance will belonger than normal.Make sure there is no othervehicles around you, then drythe brakes by applying themgently several times while thevehicle is moving slowly.

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VEHICLE OPERATION

may lock the driving wheel, andthe vehicle can become unstable.In this case, release the clutch,and apply the brake.

When decelerating on slippery oruneven road surface with the auxil-iary brake (exhaust brake) applied,if wheel slippage occurs, the auxil-iary brake may be automaticallyreleased and the indicator lightgoes out. This is a normal opera-tion of ABS, and it is not a malfunc-tion. Pay attention to the roadconditions and the distancebetween vehicles, and alwaysdrive safely.

CAUTION

When installing an electronicdevice such as radio or com-munication equipment, becareful not to affect the func-tion of the ABS. Contact anauthorized UD Trucks dealer ifyou have any unclear points.

(ABS) Anti-lock Brake System

The ABS, when it activates, properlycontrols the slippage of wheels andeffectively utilizes frictions betweentires and road surfaces. It is a devicethat enhances safety, but it does notenable you to drive beyond the limi-tations. Follow the precautionsbelow, and always drive safely.

Confirm that the warning light illu-minates when the ignition key isturned to the ON position and thatit goes out after about 3.0 sec-onds.

The motor operating sound maybe temporarily heard from theframe side when the vehicle speedreaches 4 mph (7 km/h) each timeafter the engine is started. This isthe sound of the ABS operationcheck, and it is not a malfunction.

When the ABS is in operation, theoperating sound is intermittentlyheard. This is not a malfunction.

The stopping distance on slipperyroad surfaces will be longer thanon normal, dry, paved road sur-

faces. Also, in deep snow, on gravelroads, or when tire chains areinstalled, if the ABS activates, thestopping distance may be slightlylonger than the models withoutABS. Always take into account the roadconditions, tire conditions, etc.,maintain a safe distance from thevehicle in front of you, and drive atsafe speeds.

The ABS helps to prevent thewheel slippage when the brake isapplied, and it does not function forthe slippage when the acceleratorpedal is applied or when turning.Also, even if the ABS activates, ona frozen and very slippery road,the steering wheel operation canbe difficult due to the loss of con-trol.Always drive at safe speeds,and avoid abrupt braking or steer-ing operations as much as possi-ble.

When driving with the transmissionin a lower gear position on a frozenand slippery road, engine braking

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VEHICLE OPERATION

P

<inTmsapcgto

RKING YOUR VEHICLEenever it is possible, park theicle on a level ground. Whenking on a slope or off the road, wheel chocks in addition to theking brake.

WARNING

lways place the transmissionn neutral position (Manualransmission) or P (Park) or NNeutral) position (Automaticransmission) to prevent unin-ended engine startup result-ng from sudden ornexpected vehicle movement.lways set the parking brake.o not leave the vehicle unat-

ended with the engine run-ing.void parking in a place where

here are flammable objectsuch as dry grass, etc. Theyay ignite and cause a fire due

o the high temperature of thengine and exhaust system.

0 - 35

arking brake

Spring-activated rear wheel park-g brake>he rear axle brake shoes areechanically actuated by a spring

ystem when the parking brake arepplied. To apply the parking brake,ull the parking brake valve on theab floor in rear of the transmissionear shift lever. Push the valve down release the parking brake.

PAWhvehparusepar

WARNING

Never apply the parking brakewhen the vehicle is moving.Such application will lock therear wheels and may result inloss of vehicle control, couldcause damage to the drivelineand/or brake drum on thetransmission.Do not operate the parkingbrake valve when someone isworking near the rear axle. Themovements of the parkingbrake actuating rod may causeserious injury.

Before operating the vehicle,release the parking brake.Make sure that the PARKINGBRAKE warning light goes out.If the parking brake is notreleased, the brake systemmay be damaged resulting in aloss of braking effectiveness.

When parking on a slope or offthe road, use wheel chocks inaddition to the parking brake.

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VEHICLE OPERATION

IN COLD WEATHER

Starting the engine in cold weather

The diesel engine utilizes a com-pression ignition system and there-fore starting the engine in coldweather may be difficult compared toa gasoline engine.In order to facilitate cold weatherstarting, adhere to the following pro-cedures.

Starting method

Fuel

Use diesel fuel ASTM 1-D in coldweather.

Avoid getting water in the fuel sys-tem. Water in the fuel system willfreeze and make starting the

WARNING

Do not use ether to assist withstarting since it is highly toxicand flammable and couldcause a fire or explosion.

To park the vehicle1.Shift the transmission to the neu-

tral position (Manual transmission)or P (Park) or N (Neutral) position(Automatic transmission).

2.Apply the parking brake.3.Idle the engine for 3 to 5 minutes

to lower the engine temperaturebefore stopping the engine.

4.Stop the engine and turn allswitches to OFF.

5.Remove the ignition key.6.Lock the doors.

AFTER PARKING YOUR VEHICLE 1.Check for oil, water and fluid leaks.2.Drain any condensate from the air

reservoir.3.In cold climates drain water from

the fuel filter. If water remains, itmay freeze resulting in damage tothe fuel filter.

4.Perform all necessary service andrepairs. CAUTION

Neglecting to idle the engineproperly may damage theengine especially after com-pleting a high-load or high-speed run.

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O

B

ay be faulty and should bepaired.

WARNING

ailure to drain water couldause freezing in the air linesnd result in serious injury dueo insufficient braking power.

0 - 37

engine impossible. At the end ofeach daily operation, drain waterfrom the fuel filter.Always fill the fuel tank up to itsspecified level to prevent conden-sation.

il

The lubricating oil thickens as itgets colder, slowing engine crank-ing speed. Be sure to use properlubricating oil in order to offer lessresistance to the cranking effort ofthe engine.See the "Oil viscosity and relationbetween viscosity and tempera-ture:" on page 11-32.

attery

If the battery is not fully charged,the battery electrolyte may freezeand the resultant expansion maydamage the battery.To maintain maximum efficiency,the battery should be checked reg-ularly, at least once a month, and

maintained in the fully-chargedcondition.

Anti-freeze

Check the UDXtra Long Life DieselEngine Antifreeze/Coolant toassure proper winter protection.For details, see the "ENGINECOOLING SYSTEM" on page 11-24.

Draining air reservoir

At the end of each daily operation,always drain water from the airreservoir. If a large quantity ofwater accumulates, the air dryer

mre

WARNING

Do not attempt to jump start avehicle having a frozen bat-tery; the battery may rupture orexplode. If a frozen battery issuspected or if ice can be seenin each cell, do not attempt tostart the vehicle with jumpercables.

Fcat

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VEHICLE OPERATION

IDLE SHUTDOWN (Optional)The Idle shutdown function savesfuel consumption and reduces emis-sion gas when a vehicle is standingstill and ignition key is ON position.<Function Overview>This function stops the engine auto-matically if a predefined time haselapsed since the entry conditionsare fulfilled when the vehicle isstanding still and the ignition keyposition is ON. The warning period is 30 secondsbefore the engine stops. The dis-played message and audible alarmwarn the driver during this period.The warning to the driver continuesuntil turn the ignition key to OFFposition.

Cold Weather Operation of Allison Automatic TransmissionThe following chart is the minimumfluid temperature at which the trans-mission may be safely operated in aforward or reverse range. Whenambient air temperature is below theminimum fluid temperature limit andthe transmission is cold, warm-up isrequired.Run the engine at idling for at least20 minutes with the transmission inneutral before operating in a forwardor reverse range.

Coolant heaterAt temperatures below –4°F

(–20°C), an engine block immer-sion coolant heater is recom-mended to aid cold weatherstarting by keeping the enginewarm. For details, please consultyour UD trucks dealer.

CAUTION

Failure to observe the mini-mum fluid temperature limitcan result in transmission mal-function or reduced transmis-sion life.

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VEHICLE OPERATION

<Ttia

AA AA <Tsin

0 - 39

Entry Condition>he idle shutdown function starts themer to stop the engine if followingll conditions are fulfilled.

ND Engine has been warmed up.ND The engine is running and the vehicle is standing still.ND Accelerator pedal is released.ND Parking brake is applied. (This condition can be applied according to the customer needs.)Override Condition>he idle shutdown function does nothutdown the engine if any of follow-g conditions is fulfilled.

PTO switch is ON.DPF is being regenerated.Brake pedal is depressed during

the warning period. Engine load is over the threshold.External lever is in use.Any of the entry conditions is not

fulfilled. Just after engine was run at high

load.Any failure occurs in the engine

system.<Engine restart>1.Turn the ignition key to LOCK

(OFF) position, and a audiblealarm will stop sounding.

2.Turn the ignition key to the STARTposition.

CAUTION

If the vehicle is left as it is afterengine was shut down auto-matically by this function, itresults in low battery.It is not easy to operate steer-ing because the power steer-ing is not available just afterengine shutdown.

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VEHICLE SERVICE AND MAINTENANCE

a.In accordance with the originalengine manufacturer's instruc-tions; or

b.Where data or other reasonabletechnical basis exists that suchparameter adjustment or designelement change, when performedon the engine or similar engines, isnot expected to adversely affect in-use emissions.

2.When an engine is being rebuiltand remains installed or is rein-stalled in the same vehicle, it mustbe rebuilt to a configuration of thesame or later model year as theoriginal engine. When an engine isbeing replaced, the replacementengine must be an engine of (orrebuilt to) a configuration of thesame or later model year as theoriginal engine.

3.At time of rebuild, emissions-related diagnostic trouble codes(DTCs) or signals from on-boarddiagnostic (OBD) monitoring sys-tems may not be erased or reset

VEHICLE SERVICE AND MAINTENANCECLEAN AIR ACT

Heavy-duty engine rebuilding practices.

§ 86.004-40The provisions of this section areapplicable to heavy-duty enginessubject to model year 2004 or laterstandards and are applicable to theprocess of engine rebuilding (orrebuilding a portion of an engine orengine system). The process ofengine rebuilding generally includesdisassembly, replacement of multipleparts due to wear, and reassembly,and also may include the removal ofthe engine from the vehicle andother acts associated with rebuildingan engine. Any deviation from theprovisions contained in this sectionis a prohibited act under section 203(a) (3) of the Clean Air Act (42U.S.C. 7522 (a) (3)).

1.When rebuilding an engine, por-tions of an engine, or an enginesystem, there must be a reason-able technical basis for knowingthat the resultant engine is equiva-lent, from an emissions standpoint,to a certified configuration (i.e., tol-erances, calibrations, specifica-tions) and the model year(s) of theresulting engine configurationmust be identified. A reasonablebasis would exist if:

A.Parts installed, whether the partsare new, used, or rebuilt, are suchthat a person familiar with thedesign and function of motor vehi-cle engines would reasonablybelieve that the parts perform thesame function with respect toemissions control as the originalparts; and

B.Any parameter adjustment ordesign element change is madeonly:

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VEHICLE SERVICE AND MAINTENANCE

4

5

on that they cannot reasonablyccess.

arties may keep records of theirbuilding practices for an enginemily rather than on each individ-

al engine rebuilt in cases whereose rebuild practices are fol-wed routinely.

ecords must be kept for a mini-um of two years after the engine rebuilt.

1 - 2

without diagnosing and respondingappropriately to the DTCs, regard-less of whether the systems areinstalled to satisfy requirements in§ 86.004-25 or for other reasonsand regardless of form or inter-face. Diagnostic systems must befree of all such DTCs when therebuilt engine is returned to ser-vice. Such signals may not be ren-dered inoperative during therebuilding process.

.When conducting a rebuild with-out removing the engine from thevehicle, or during the installation ofa rebuilt engine, all critical emis-sions-related components listed in§ 86.004-25 (b) not otherwiseaddressed by paragraphs 1through 3 of this section must bechecked and cleaned, adjusted,repaired, or replaced as neces-sary, following manufacturer rec-ommended practices.

.Records shall be kept by partiesconducting activities included in

paragraphs 1 through 4 of this sec-tion. The records shall include atminimum the mileage and/or hoursat time of rebuild, a listing of workperformed on the engine andemissions-related control compo-nents including a listing of partsand components used, engineparameter adjustments, emis-sions-related DTCs or signalsresponded to and reset, and workperformed under paragraph 4 ofthis section.

A.Parties may keep records in what-ever format or system they chooseas long as the records are under-standable to an EPA enforcementofficer or can be otherwise pro-vided to an EPA enforcement offi-cer in an understandable formatwhen requested.

B.Parties are not required to keeprecords of information that is notreasonably available through nor-mal business practices includinginformation on activities not con-ducted by themselves or informa-

tia

C.Prefauthlo

D.Rmis

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VEHICLE SERVICE AND MAINTENANCE

are and maintenance.ed at the indicated intervals (miles

Trucks dealer or qualified servicehapter.

MAINTENANCE.ng will be required.

airs should be genuine UD Trucks

T = Tighten to specified torque L = Lubricate

MAINTENANCE INTERVALS

NOTE: It is the owner’s responsibility to see that the vehicle receives proper cThe maintenance or lubrication services shown below are to be perform

or months, whichever occurs first). Items indicated by “♦” should be performed only by your authorized UD

facility. For other items, the maintenance procedures are given in this c Items marked with “*” are related to the EMISSION CONTROL SYSTEMUnder the following severe operating conditions, more frequent servici

– Operation in heavy dust conditions– Operation at extremely low or high ambient air temperature– Extended high-speed operation with vehicle fully-loaded to its GVWR– Extended low-speed operation– Frequent stop-and-go operation

Any replacement parts used for required maintenance service or repparts or equivalent in quality and design to genuine UD Trucks parts.

Abbreviations:A = Check and adjust if I = Inspect, clean and correct or

necessary replace as necessaryR = Replace or change

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VEHICLE SERVICE AND MAINTENANCE

E

N

Months(every)

Reference page

0 36 50 728 60 80 120

A 24

A 36

A 36

A -

cements - 11-39

R R:36 11-43

12

11-331266

1 - 4

ngine

OTE: 1. Non-UDXtra engine oil details refer to page 11-31.

Items

First EveryMiles x 1,000 3 6 9 10 12 15 18 20 24 3Kilometers x1,000 5 10 15 16 20 25 30 32 40 4

BASIC MECHANICAL SYSTEM♦ Valve clearance

♦*Cylinder compression pressure

♦*Engine mounting

FUEL SYSTEM♦Low and High idle speed *Fuel filters (Main and primary fuel filter) Once for every 2 engine oil and filter replaFuel hose and pipe(Fuel filter to supply pump, Fuel tank to fuel filter, Engine to fuel tank)

A

LUBRICATION*Engine oil and oil filter: Type 1 R(With UDXtra Engine oil) Type 2 R*Engine oil and oil filter: Type 1 R(With Non-UDXtra Engine oil) Type 2 (Refer to note 1.)

R

Type 1/Type 2: For type of operation details refer to page 11-33

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VEHICLE SERVICE AND MAINTENANCE

Months(every)

Reference page

30 36 50 7248 60 80 120

I 12 11-27m)

11-46R 12

00 km) 48 11-28A 12 11-24

R 12 11-44R 24 11-75

6 11-27I 24

I 24

12 11-75

r 4,500 hours - 11-70

0 km) 12 11-50

or 7,000 hours - 11-48

36

12 11-71

Engine (Cont’d)

Items

First EveryMiles x 1,000 3 6 9 10 12 15 18 20 24Kilometers x1,000 5 10 15 16 20 25 30 32 40

COOLING SYSTEM *Cooling fan

*Drive belts Initial inspection at first 6,000 miles (10,000 k

Engine coolant R: Every 320,000 miles (500,0 *Radiator and heater hoses and clampsINTAKE AND EXHAUST SYSTEM*Air cleaner elementIntake air hose and clamps*Charge air cooler body I

♦*Charge air cooler hoses

♦ Turbocharger rotor operationExhaust pipe and muffler attachment loose and damage A

♦*DPF I: Every 155,000 miles (250,000 km) o

♦*CCV filter R: Every 62,000 miles (100,00

♦*DEF filter R: Every 150,000 miles (240,000 km)

♦*DPF sensor hose R: Every 36 months

♦*DPF regeneration system I: Every 12 months

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VEHICLE SERVICE AND MAINTENANCE

E

Months(every)

Reference page

0 36 50 728 60 80 120

I 12I 24

m) -

1 - 6

ngine (Cont’d)

Items

First EveryMiles x 1,000 3 6 9 10 12 15 18 20 24 3Kilometers x1,000 5 10 15 16 20 25 30 32 40 4

ELECTRICAL EQUIPMENT Starter bearing grease

♦ Starter brush

♦ Alternator assy R: Every 218,000 miles (350,000 k

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11 - 7

VEHICLE SERVICE AND MAINTENANCE

Reference page30 36 50 7248 60 80 12012

R 11-6611-65

I

I

R 11-56

I

I

I

R 11-60

Chassis

Items

First EveryMiles x 1,000 3 6 9 10 12 15 18 20 24Kilometers x1,000 5 10 15 16 20 25 30 32 40Months (every) 1 2 4 6 8 10

CLUTCHClutch fluid IClutch pedal play I

♦ Clutch disc I

♦ Clutch piping

MANUAL TRANSMISSION♦ Breather

Manual transmission gear oil RAUTOMATIC TRANSMISSION (UD1800 thru UD3300)Automatic transmission fluid & filter Refer to 11-12PROPELLER SHAFT Sliding shaft

♦ Universal joint

♦ Center bearing

♦ Condition of propeller shaft T

DIFFERENTIAL GEARDifferential gear oil R

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VEHICLE SERVICE AND MAINTENANCE

C

N spection, the inspection

ance procedure also

Reference page0 36 50 728 60 80 1202

11-6211-60

11-86

1 - 8

hassis (Cont’d)

OTE: 1. If the mileage is 2,500 miles (4,000 km) or less in 6 months just before the 6 month in can be skipped. 2. Perform maintenance after the first 1,000 miles (1,600 km) of operation. This mainten applies whenever a tire is replaced.

Items

First EveryMiles x 1,000 3 6 9 10 12 15 18 20 24 3Kilometers x1,000 5 10 15 16 20 25 30 32 40 4Months (every) 1 2 4 6 8 10 1

STEERING SYSTEM♦ Gear box TPower steering fluid and filter R I RSteering wheel free play I♦ Steering linkage T

♦ Power steering rubber hose R: Every 24 monthsAXLE AND WHEEL♦ Front axle (I-beam) I

♦ Clearance between front axle and knuckle I

♦ Kingpin cotter pin T

♦ Wheel alignment I

♦ Rear axle housing I

♦ Breather I

♦ Front wheel bearing (Refer to note 1.) I

♦ Front wheel bearing grease R

♦ Rear wheel bearing (Refer to note 1.) I

♦ Rear wheel bearing grease RWheel nut (Refer to note 2.) I

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VEHICLE SERVICE AND MAINTENANCE

ore frequent inspections

Reference page24 30 36 50 7240 48 60 80 12010 12

I11-64

hs

I

I

hs

hsR 11-62

hs

m) or 1 month

I

I

hs

Chassis (Cont’d)

NOTE: 1. During periods of severe service operation or frequent stop-and-go operation, m of the brake system should be performed.2. Spring-activated rear wheel parking brake.

Items

First EveryMiles x 1,000 3 6 9 10 12 15 18 20Kilometers x1,000 5 10 15 16 20 25 30 32Months (every) 1 2 4 6 8

AIR-OVER-HYDRAULIC BRAKE SYSTEM (UD1800 thru UD2600)♦ Service brake valveAir dryer I♦ Air dryer repair kit R: Every 12 mont

♦ Air compressor and air pressure governor (air dryer integrated model)

♦ Brake piping

♦ Brake hose R: Every 12 mont

♦ Air booster repair kit R: Every 12 montBrake fluid I♦ Wheel cylinder repair kit R: Every 12 mont

♦ Brake lining clearance (Refer to note 1.) I: Every 2,500 miles (4,000 k

♦ Brake lining I

♦ Brake drum

♦ Parking brake system (note 2.)

♦ Parking brake chamber diaphragm (note 2.) R: Every 24 mont

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VEHICLE SERVICE AND MAINTENANCE

C

N more frequent inspections of the brakestment to ensure correct braking.

Reference page30 36 50 7248 60 80 12012

I

11-64

I

I

r 1 month

I

I

1 - 10

hassis (Cont’d)

OTE: 1. During periods of severe service operation or stop-and-go high volume operation, system should be performed. Always maintain correct push rod stroke and brake adju2. Non-disassembling

Items

First EveryMiles x 1,000 3 6 9 10 12 15 18 20 24Kilometers x1,000 5 10 15 16 20 25 30 32 40Months (every) 1 2 4 6 8 10

AIR BRAKE SYSTEM (UD3300)♦ Service brake valveAir dryer I

♦ Air dryer repair kit R: Every 12 months

♦ Air compressor and air pressure governor

♦ Brake piping

♦ Brake hose R: Every 12 months

♦ Rear and front brake chamber diaphragm R: Every 24 months

♦ Brake chamber push rod stroke (Refer to note 1.) I: Every 2,500 miles (4,000 km) o

♦ Rear brake chamber spring cylinder (Refer to note 2.) R: Every 36 months

♦ Brake lining I

♦ Brake drum

♦ Parking brake system

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11 - 11

VEHICLE SERVICE AND MAINTENANCE

Reference page30 36 50 7248 60 80 12012

11-6711-68

I 11-68I 11-68I 11-68

I 11-68

11-7611-7711-77

I

r 1 month 11-16

Chassis (Cont’d)

Items

First EveryMiles x 1,000 3 6 9 10 12 15 18 20 24Kilometers x1,000 5 10 15 16 20 25 30 32 40Months (every) 1 2 4 6 8 10

SUSPENSIONLeaf spring IShock absorber I

♦ U-bolt and nut T I

Air bellows (Air suspension) I ILeveling valve (Air suspension) I IAir leakage (Air suspension) I I

♦ Looseness and damage (Air suspen-sion) I I

Shock absorber (Air suspension) IELECTRICAL SYSTEMBattery electrolyte level IBattery terminal ISpecific gravity of battery electrolyte IOTHERS♦ Acoustical shieldingGrease lubrication L: Every 5,000 miles (8,000 km) o

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VEHICLE SERVICE AND MAINTENANCE

A

C ollowing chart.U

#

T f the transmission fluid, when there 100 percent moving downwardto pon each initialization of the TCM,a of a drive range, until service ispF e next 100 hours of transmissiono TM maintenance light). Any timeth

Lube/Auxiliary

Gange filter when indicated controller or 48 months, whichever comes first.

** omes first.

1 - 12

utomatic transmission maintenance schedule

hange the automatic transmission fluid and filter at the intervals specified in the fD1800 thru UD3300 (Allison 1000, 2200 and 2500 series)

1 OIL LIFE MONITOR

he ATM maintenance indicator will be illuminated, denoting a required change omaining fluid life reaches approximately 2 percent (the parameter begins atwards the lowest threshold). The ATM maintenance indicator will be lit steadily u

nd will remain on steady for approximately two minutes after the initial selectionerformed and the indicator is reset.ailure to perform maintenance and reset the ATM maintenance indicator within thperation will result in the illumination of the ATM system light (in addition to the Ais light is illuminated.

Vocation Fluid* (#1)Filters (#2)

Control Main** Internal

eneral or severeChange fluid when indi-cated by controller or 48

months, whichever comes first.

Change filter when indi-cated by controller or 48

months, whichever comes first.

OverhaulChby

Allison Prognostics must only be used with Allison approved TES 295 fluid.* Allison Prognostics must only be used with Allison P/N 29539579 control main spin-on filter. Control Main Spin-on Filters Only - Initial 10,000 miles (16,000 km) or 400 hours, whichever c

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11 - 13

VEHICLE SERVICE AND MAINTENANCE

tion after reaching the time and mile-ife. The indicator will continue to flashl illuminate and flash upon each TCM) each time, until service is performed

r an additional 100 hours of transmis-n to the ATM maintenance light). Any

tch maintenance, when the remainingds a maximum value which may indi-tion of the TCM, and will remain on

ed and indicator is reset. If reset doesn to the ATM maintenance light) and

ondition which initiated it.

#2 FILTER LIFE MONITORThe ATM maintenance indicator will flash beginning with the first TCM initializaage parameters, indicating that the filter has reached the end of its designed lfor two minutes after D (Drive) has been selected. Thereafter, the indicator wilinitialization, continuing to flash for two minutes after the selection of D (Driveand the indicator is reset. Failure to perform maintenance and reset the ATM maintenance indicator aftesion operation will result in the illumination of the ATM system light (in additiotime this light is illuminated.

TRANSMISSION HEALTH MONITORThe ATM maintenance indicator will be illuminated, indicating the need for cluclutch life reaches approximately 10 percent, or if the running clearance exceecate a non-wear-related issue. The indicator will be lit steadily upon initializasteady at all times, continuing to operate in this manner until service is performnot occur within 100 hours, the ATM system light will be illuminated (in additiothe TCM will register a diagnostic trouble code (DTC).The indicator will reset automatically upon elimination of the clutch clearance c

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U

TT and alerts you when clutch main-te sswork out of scheduling routinetr aximum performance level. Thec lculated running clearance of thetr

and nter- Suction Filter Assembly

Change Interval

Ati

e

the and D

*

At time of transmission overhaul

1 - 14

D2600 and UD3300 (Allison 3000 series)

RANSMISSION HEALTH MONITOR (TM)his prognostic feature determines clutch life status of the transmission’s clutchesnance is required. It helps avoid costly repairs and downtime by taking the gueansmission maintenance, and it ensures your transmission is operating at its mlutch life status is determined by monitoring the cumulative changes and the caansmission clutches.

Filter Type

Fluid and Filter Change Interval

Fluid Change IntervalsHigh capacity** MainLube Filter Change I

vals

disassembled ype (Incorporated n the oil pan)

TES 295 Fluids* (includes TranSynd® )

Whichever is first of the following:・If the wrench icon in the selec-tor is illuminated steady for 2 minutes after D (Drive) is selected ・60 calendar months**

NOTE: Always replace main and lube filters with the fluid change**.

Whichever is first of thfollowing:・If the wrench icon inselector is flashing onoff for 2 minutes after (Drive) selected ・Any time the fluid is changed ・60 calendar months*

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VEHICLE SERVICE AND MAINTENANCE

(except lockup) reaches a remainingexcept lockup) exceeds a maximumter ignition key on until ignition key is an “ok” or “Lo” is displayed. The “ok”ans an unacceptable clutch life status

ts if multiple warnings have occurred the ATM system light.

CLUTCH MAINTENANCE NOTIFICATIONThe TM determines when clutch maintenance is needed. If any of the clutcheslife of approximately 10 percent or if any of the clutch running clearances (value, then the wrench icon in the selector is steadily illuminated from just afturned the OFF position. if TM mode has been accessed via the shift selector,message means no clutch maintenance is needed, and the “Lo” message meexists and clutch maintenance is required.DTC (Diagnostic Trouble Code) P2789, Clutch Adaptive Learning at Limit, sedue to the TM actively detecting issues with the clutch system and illuminating

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G

R

point No. of points

1

2RL

2RL

ble to UD1800 1RL

arm shaft00 and UD2000) 1RL

d slack adjuster 2RL

nd slack adjuster 2RL

N

N

1 - 16

REASE LUBRICATION POINTS

ecommended lubricants (Chassis grease)

Lubrication point No. of points Lubrication

1 Rear helper spring 2RL 9 Steering column

2 Rear spring pin & shackle pin 3RL 10 Door hinge

3 Propeller shaft journal & yoke 3 to 6 11 King pin

4 Clutch release shaft 2 12 Tie rod end (Not applicathru UD2300)

5 Clutch release sleeve 1 13 Parking brake chamber(Not applicable to UD18

6 Cab mounting front torsion bar contact seat 1RL 14 Rear brake camshaft an

(UD3300)

7 Front spring pin & shackle pin 3RL 15 Front brake camshaft a(UD3300)

8 Cab mounting main hook & pin 1

Specifications Parts

LGI No. 1 1, 6, 8, 10

LGI No. 2 or NLGI No. 3 2, 3, 4, 5, 7, 9, 11, 12, 13, 14, 15

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VEHICLE SERVICE AND MAINTENANCE

UD2300

UD2600

: Lubricate with a grease gun.

: Apply grease manually with a stick. Do not apply with finger or hand.RL : Lubrication points located on both left and right sides of vehicle.x 2 : Number of grease nipples or points.* : Refer to enlarged view.

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1 - 18

UD3300

UD3300

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VEHICLE SERVICE AND MAINTENANCE

Used oil, coolant, fuel, etc.It is illegal and harmful to the envi-ronment to dispose of used oil orcoolant, fuel, etc., by pouring it onthe ground, into sewers, or into bod-ies of water. Only use authorizedrecycling facilities that may be pro-vided by the local government or aservice facility. If any doubt, contactlocal government authorities or yourauthorized UD Trucks dealer or qual-ified service facility.

BEFORE PERFORMING MAINTENANCE

Use care when inspecting, servicingor repairing the vehicle. Heed thewarnings and follow the instructionsgiven on the labels and in this man-ual. If you have any questions, contactyour authorized UD Trucks dealer orqualified service facility before pro-ceeding. Assure that the service orrepair has been completed properly.Before performing any service ormaintenance on your UD Trucksvehicle;Park the vehicle on a level ground.

Shift the transmission to the NEU-TRAL position (Manual transmis-sion) or P (Park) or N (Neutral)position (Automatic transmission).

Apply the parking brake and chockthe wheels.

Allow the engine to cool beforeattempting to service the vehicle.

Whenever possible, performinspections with the engine off andcooled.

WARNING

Incomplete or improper ser-vice or repair could causevehicle malfunction resultingin serious injury or vehicledamage.

If you must work under thevehicle while it is jacked up,use safety stands and wheelchocks.

WARNING

When you must inspect or ser-vice a part or system with theengine running:Remove neckties, rings,

watches, other jewelry andloose articles.

Keep articles, hands, clothes,hair and tools away from thedrive belts and fan.

Avoid shorting the battery ter-minals.

Be sure that sufficient ventila-tion is available.

Avoid contact with hot sur-faces.

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C

O

hen opening the front lid, be sure set the lever into the hole that isdicated with the mark located one front lid.

1 - 20

AB

pening and closing the front lid

Opening the front lid1.Pull the lever located near the

underside of the left front pillar torelease the front lid lock.

2.Disengage the front lid hook. Pushup the front lid and secure it withthe rod.

3.Wtointh

CAUTION

Crush hazard. Turn off wipersbefore servicing.Before opening the front lid,set the wiper arms to their nor-mal positions. If the front lid isopened with the wiper armstilted forward, the front lid willcontact the wiper arms. Thiscould damage the wiper armsand front lid.Before driving, make sure thefront lid is securely locked.

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VEHICLE SERVICE AND MAINTENANCE

1.Stop the vehicle on a level ground.2.Shift the transmission to the neu-

tral position and apply the parkingbrake.

3.Make sure the engine is not run-ning.

4.Chock the wheels as necessary.5.Remove loose or heavy articles

from the cab.6.Close the cab doors.

Closing the front lid1.Put away the rod.2.Lower the front lid slowly.3.Push down the front lid until it

clicks into place.4.Make sure that the front lid is

locked.

Tilting the cab

Your UD Trucks vehicle provideseasy access for routine service andmaintenance. Many inspection andmaintenance procedures can be per-formed without tilting the cab. Forthose that require tilting, the cab ofyour UD Trucks vehicle can be liftedwith one person. The torsional springlifting system raises the cab auto-matically after it is released with littleor no upward pressure from theoperator.Before tilting the cabBefore tilting the cab indoors, makesure that there is sufficient clearanceabove the cab (height clearance; H)and in front of the cab (advanceclearance; F). The vehicle requiresminimum clearances of 13.1 ft (4 m)in height and 4.9 ft (1.5 m) forward ofthe cab.

WARNING

When opening the front lid, besure to set the lever into thehole that is indicated with themark located on the front lid. If the lever is placed on otherlocations, the lever may disen-gage and the front lid may thenclose. This may cause aninjury.

CAUTION

To prevent possible damage,before washing inside the frontlid, close the heater air inlet toprotect it from water.

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T

1

2

ilt the cab all the way forward untile tilt strut is straight and inserte safety pin into the pin hole one side of the tilt strut.

1 - 22

ilting the cab

.Remove the lock pin from the tiltlock lever.

.Pull the tilt lock lever out all theway. This releases the main hookwhich holds the cab body to the

cab frame. The torsional springswill cause the cab to raise slightly.

3.While holding the grip (located onthe lower left side of the cab) onthe cab, pull the sub hook lever outall the way. When the sub hooklever is fully extended, the cab willfloat up. If the cab does not floatup, push the cab body up manu-ally.

4.Tththth

WARNING

Do not stand in front of orunder the cab while tilting orlowering the cab. Put thesafety pin into the pin holeimmediately after tilting toavoid accidental lowering ofthe cab.

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VEHICLE SERVICE AND MAINTENANCE

3.While supporting the cab with yourhand on the grip, under the leftside of the cab, pull the tilt strutrearward and lower the cab.

4.Lower the cab all the way to itsnormal position.

5.Check to be sure that the mainhook on the rear center portion of

WARNING

When the tilt strut is pulledrearward, the weight of the cabmay cause it to lower. Maintainyour secure grip on the gripand lower the cab in a con-trolled manner.

NOTE:Cover the air cleaner opening to

prevent dust or rainwater fromentering when leaving the cabtilted for a long time.

Lower the cab

1.Check that no cloth, gloves, ortools are left on or around theengine, the exhaust manifold orother hot surfaces.

2.Remove the safety pin from the pinhole and store it in the storagehole on the tilt strut.

WARNING

To avoid the chance of seriousinjury and/or property damagewhen working on engine with thecab tilted:Make sure that the parking

brake is firmly applied, thewheels are blocked, and thetransmission shift lever is in N(Neutral), before startingengine.

Be careful not to touch thetransmission control cablewhen the engine is running.Otherwise, the transmissiongears could engage and thevehicle could move suddenly.

Keep yourself, your clothingand your tools away from mov-ing parts such as the coolingfan and drive belts when theengine is running.

CAUTION

Tools left in the engine com-partment can damage the vehi-cle.

Flammable materials left on ornear hot surfaces can be a firehazard.

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6

GINE COOLING SYSTEM

engine cooling system was filledthe factory with UDXtra Long Lifesel Engine Antifreeze/Coolanth a 50/50 antifreeze/water mix-. UDXtra Long Life Diesel Engine

tifreeze/Coolant contains rust androsion inhibitors. UDXtra Long Diesel Engine Antifreeze/Cool- provides protection againstzing to approximately –31°F (–C). UDXtra Long Life Diesel

gine Antifreeze/Coolant mustain in the system within 4 years320,000 miles (500,000 km) tovide protection against freezing,ling, rust and corrosion. Do not additional cooling system addi-s or inhibitors. They may interfere

h the proper operation of the cool- system. eck the engine, radiator, hoses pipes daily. Repair any leaks.

place swollen and worn hoses tighten loose clamps.

eck the ENGINE COOLANTVEL warning light daily. If therning light comes on, follow the

1 - 24

the cab firmly engages the mainhook pin, located at the center ofthe cab mounting bracket.

.Replace the lock pin in the tilt locklever.

EN

Theat DiewittureAncorLifeantfree35°Enremor proboiusetivewitingChandReandChLEwa

WARNING

If the cab has not been com-pletely locked, when the igni-tion key is turned ON, thewarning light will come on andthe warning buzzer will soundat the same time. Relock thecab.

Do not operate the vehiclewithout engaging the lock pinin the tilt lock lever. If the lockpin cannot be inserted, thenthe main hook is not engagedwith the main hook pin. If notproperly engaged, then the cabcould rise accidentally whilethe vehicle is moving whichcould cause loss of vehiclecontrol and serious injury.

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VEHICLE SERVICE AND MAINTENANCE

NOTE:Coolant will automatically be

supplied from the reservoir tankto the radiator. Do not removethe radiator filler cap.

Long Life CoolantFor the coolant, use UDXtra LongLife Diesel Engine Antifreeze/Cool-ant that has been diluted 50% yearround. The LLC has an additive forrust prevention and anti-freezing. Itis not necessary to add commerciallyavailable antifreeze or rustproofagent.

Precautions for use of LLC The service period of LLC is 4

years or 320,000 miles

instructions in the “INSTRUMENTSAND CONTROLS” of this manual.

Checking engine coolant level

Open the front lid.Check the engine coolant level dailyonly when the engine is cool. Checkthe coolant level in the coolant reser-voir tank located behind the front lid.The coolant level should be betweenthe MAX and MIN lines. If the cool-ant level is below the MIN line, addthe proper coolant solution to theMAX line.

WARNING

To avoid serious injury from hotcoolant or steam release:Do not open the radiator filler

cap while the engine coolingsystem is hot; wait until itcools.

Be extremely careful whenopening the radiator filler cap.Place a thick cloth on the capand slowly loosen it to allow areduction in pressure in thecooling system.

WARNING

Never drink Long Life Coolant,as it is toxic.If you drink it by mistake,immediately induce vomitingand then consult with yourdoctor.

If the coolant gets into the eye,immediately rinse it away withfresh water and take medicaltreatment promptly.

Wash the coolant off withclean water and then with soapimmediately when the coolantgets on to your skin or cloth.

Tighten the coolant containercap and store it out of thereach of children.

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DDsac

ecking and cleaning radiator

maintain cooling system effi-ncy and keep the engine fromrheating, always keep the frontface of the radiator core clean.move insects, dirt and otherris by directing pressurized air at

rear surface of the radiator core.

CAUTION

f the coolant should getxtremely low and the engineery hot, let the engine coolefore adding coolant; then,ith the engine running, addoolant slowly. Adding coldoolant to a hot engine mayrack the cylinder head or cyl-nder block. Never use waterlone.

1 - 26

(500,000 km). After the serviceperiod, clean the cooling sys-tem completely and replace thecoolant.When the engine coolant levelhas dropped due to naturalwater dissipation while usingLong Life Coolant, add genuineLong Life Coolant that has beendiluted 50%.

ilution Waterilution water for the cooling systemhould be clean, free from depositnd scale forming materials, andorrosive chemicals.

Ch

To cieovesurRedebthe

CAUTION

Antifreeze made with methoxypropanol or propylene glycolis not recommended for usewith UD Trucks engines. Thesetypes of antifreeze can damageengine internal seals and cool-ant hoses and create a poten-tial fire hazard due to lowerflash points than ethylene gly-col type antifreeze.

Use only municipally suppliedwater in the cooling system.River, well or other water pro-duces scale in the cooling sys-tem, which may cause damageto the engine or cooling sys-tem.

Do not add water without add-ing ethylene glycol antifreezeto the engine cooling system,except in an emergency. Ifplain water is added in anemergency, restore the propermixture of antifreeze and wateras soon as possible.

Ievbwcccia

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VEHICLE SERVICE AND MAINTENANCE

Cooling fan and fan shroud

Check the cooling fan and fanshroud for proper installation, cracksor damage. Replace or repair faultyparts or damage.

Clean charge air cooler body

The charge air cooler is used to coolthe overheated intake air charged bythe turbocharger, and is installed atthe front of the radiator.

When mud, debris, etc., becomesattached to the front of the core, thepassage of cooling air is impaired, soit is recommended that this materialshould be removed completely bywashing with a non corrosive deter-gent and water solution. (Refer toinstructions on the detergent con-tainer.)

Deformed fins also can impair cool-ing, and should be repaired.Clean the inside by blowing with airwhen changing charge air coolerhoses.

NOTE:Do not use water to clean the

inside of the charge air coolerbody. Using water will impaircooling due to corrosion.

CAUTION

Do not direct pressurized air tothe front surface of the radiator(that is, with the air hosepointed toward the engine).Doing so will force insects, dirtand other debris into the radia-tor core and possibly causeengine overheating.

CAUTION

Precautions when washing nearthe alternator.Using a moist alternator brush

may shorten the life of thealternator. Use an alternatorthat has been sufficiently driedby using an item such as anair-blower.

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VEHICLE SERVICE AND MAINTENANCE

anging coolant

ry 4 years or 320,000 miles0,000 km) the UDXtra Long Lifesel Engine Antifreeze/Coolant orequivalent in the cooling systemuld be drained and thoroughlyhed.

WARNING

avoid serious injury from hotolant or steam release:o not open the radiator fillerap and drain cocks while thengine cooling system is hot;ait until it cools.e extremely careful whenpening the radiator filler cap.lace a thick cloth on the capnd slowly loosen to allow aeduction in pressure in theooling system.e careful not to spill coolantver the hot exhaust systemhich can cause fire, serious

njury and/or property damage.

1 - 28

Ch

Eve(50Dieits shoflus

WARNING

To prevent hand injury, neverget your hand near the fanwhen the engine is running. Ifvehicle has an automatic fanclutch, the fan may slow whenthe coolant is cool, but it canstill cause hand injury.

CAUTION

Do not modify the crankshaftor fan pulleys to increase therated speed of the engine orfan. Doing so may cause thecooling fan blades to breakpossibly resulting in injury.Also, such modification consti-tutes tampering with the noisecontrol system.

TocoD

cew

BoParc

Bowi

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VEHICLE SERVICE AND MAINTENANCE

Except for Allison 3000 series specification vehicles

Unless the cooling system is treatedwith corrosion preventive, rust andscale will eventually clog up pas-sages in the radiator and water jack-ets. This condition is aggravated insome localities by formation of insol-uble salts from the water used.

To clean the cooling system1.Open the radiator filler cap.2.Place containers under the radia-

tor drain cock and the cylinderblock drain cock.

CAUTION

Do not use chemical mixturesto stop radiator leaks except inan emergency. Never use suchsolutions in place of neededradiator repair.

WARNING

Never drink Long Life Coolant,as it is toxic.If you drink it by mistake,immediately induce vomitingand then consult with yourdoctor.

If the coolant gets into the eye,immediately rinse it away withfresh water and take medicaltreatment promptly.

Wash the coolant off withclean water and then with soapimmediately when the coolantgets on to your skin or cloth.

Tighten the coolant containercap and store it out of thereach of children.

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3

N

tart the engine and run it at aoderate speed in the same man-er as described in step 6.top the engine. Open the drainocks and drain the rinsing water.Repeat the rinsing procedure 2 or times until the discharged rinsingater appears clean.Close the drain cocks.fill up the cooling system (With lant)

e the following refill procedure toove air from the system and pro-

e proper engine coolant level.ill the radiator slowly with theroper coolant solution up to theller opening. Add coolant solutionp to the MAX level of the coolantservoir tank. Capacities are

hown below.

1 - 30

Allison 3000 series specification vehicles

.Open the radiator drain cock andthe cylinder block drain cock.OTE:The radiator drain cock has aspecified turning direction andmust be turned to the positiondirectly below the mark whendraining water.Drain water by turning the radia-tor drain cock round approxi-mately 7 to 8 times.Be careful not turn the radiatordrain cock round more than 9times. Doing so may cause thedrain cock to fall off.

4.Drain all coolant solution from thesystem into the containers.For Allison 3000 series specifica-tion vehicles, drain coolant fromtwo drain cocks: one is located onthe oil cooler coolant hose and theother is located under the radiator.

5.Shut the drain cocks. Fill the cool-ing system with a proper mixture ofwater and a good quality coolingsystem detergent. (Refer to theadditional instructions on thedetergent container)

6.Start the engine and run it at a highidling speed until the indicatorpoints to the middle region of theengine coolant temperaturegauge. Maintaining the aboveengine coolant temperature withthe thermostat open, run theengine and allow the detergent tocirculate throughout the coolingsystem for at least 15 minutes.

7.Stop the engine. Open the draincocks and completely drain thedetergent from the system.

8.Shut the drain cocks and fill thecooling system with plain water.

Smn

9.Sc

10.3w

11.To cooUsremvid1.F

pfiures

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VEHICLE SERVICE AND MAINTENANCE

ENGINE OIL AND OIL FILTERS

Engine oil recommendations

To extend the lubrication perfor-mance of your engine “UDXtraEngine oil” or equivalent is available,which has been specifically testedand approved for UD Trucksengines.Please contact an authorized UDTrucks dealer for further detailsabout “UDXtra Engine oil”.Please consult the following instruc-tions to select and use the properlubricant from a reliable supplier toenhance trouble-free operation andservice life of the engine.

Oil grade: VDS-4Oil qualityUD TRUCKS North America recog-nizes engine oils that meet orexceed the standards given byAmerican Petroleum Institute (API)for the oil classifications listed in thismanual.Only oils licensed to carry the APIsymbol should be used. Lubricantsmeeting API standards have pro-

Then properly close the radiatorfiller cap and the reservoir tankcap.

2.Operate the engine at a slightlyhigher than normal idling speedwith the throttle control knob untilthe engine coolant temperatureindicator points the middle regionof the gauge. Run the engine anadditional 10 minutes to allow theair to escape from the engine cool-ing system.

3.Stop the engine. After the enginehas completely cooled down,remove the radiator filler cap andcheck the engine coolant level inthe radiator. If low, add coolant tothe radiator filler opening.Reinstall the radiator filler cap.

4.Check the engine coolant level inthe coolant reservoir tank. If thelevel is between the MIN and MAXlines, it is normal. If it is below theMIN level, add coolant solution upto the MAX level.

5.If the added coolant solution ismore than 16.9 US fl oz (500 milliliter), check and correct for anysign of leakage, then repeat steps1 to 4.

6.Check the drain cock for leaks.

US mea-sure

Liters

With manual transmission 6.9 gal 26

With auto-matic trans-mission

Except for Allison 3000 series

6.6 gal 25

Allison 3000 series 7.9 gal 30

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VEHICLE SERVICE AND MAINTENANCE

vumvUiseUAFsA4N

OvTththep

CAUTION

se of diesel fuel other thanLSD (Ultra Low Sulfur Diesel

uel) and engines oils otherhan UDXtra (or VDS-4), willdversely affect performance,fficiency and durability of theftertreatment DPF systemnd the engine may not run atll.anufacture’s warranties canlso be rendered void due tosage of improper fuel.napproved fuel additives

including engine oil) are NOTermitted.

1 - 32

ided maximum engine life whensed together with the recom-ended oil and oil filter change inter-

als.DXtra (or VDS-4) diesel engine oil mandatory for use in all 2010mission compliant engine.DXtra (or VDS-4) oils exceed thePI CJ-4.or a complete list of approved oils,ee your UD TRUCKS dealer.lso, refer to Technical Bulletin EN-2, Approved Oils, UDNA.OTE:UD Trucks recommends usingthe engine oil designated abovefor the proper function of theDPF system, and also use ultralow sulfur diesel fuel (0.0015%[15 ppm] by weight) only andlow-ash fuel must be less than1% in weight.

il viscosity and relation between iscosity and temperature:he viscosity grade defines theickness of the oil. The oil must bein enough at low temperatures for

asy cold starts and thick enough torotect at high temperatures. An oil

is not fully defined until both the APIquality classification and the viscos-ity grade are specified.Choose the viscosity grade for thetypical ambient air temperature(AAT) for the application.Multi grade oils have a broad rangethat suit operation in changing tem-perature.The standard oil weight for UDTRUCKS engines is 10W/30.UD TRUCKS recommends the vis-cosities shown in the viscosity/ tem-perature table for UD TRUCKSengines.NOTE:Select the oil viscosity accord-

ing to the next diagram, basingyour selection on the maximumand the minimum ambient airtemperatures.

UUftaeAaa

MauU(p

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VEHICLE SERVICE AND MAINTENANCE

Checking engine oil level

Check the engine oil level beforedriving your vehicle each day. Checkthe oil level with the engine off.When checking the oil level afterstopping the engine, wait at least 30minutes to allow the oil to return tothe oil pan.

To check the engine oil level1.Park the vehicle on a level ground.2.Remove the oil level gauge (dip-

stick) located on the left hand sideof the engine. Wipe the gaugeclean with an oil rag and reinsert it.Remove the gauge and check theoil level. Maintain the engine oillevel between the MAX and MIN

WARNING

To avoid serious injury fromhot engine and engine oil, onlycheck engine oil level and per-form maintenance after enginehas cooled.

Periodic service interval

*Non-UDXtra engine oil refer to page11-31.

Type of operation

Type 11.Unpaved road2.Dusty road3.Heavy long distance transport4.Mountain road operations5.Sort-haul distribution operations6.Construction operations (off-road)

7.Light duty in city operations8.Annually mileage up to 65,000

miles (100,000 km)

Type 21.Light long duty distance transport2.Mainly on motor ways and express

highways3.Annually mileage over 65,000

miles (100,000 km) 4.Paved and flat road operations

DO NOT add extra oil addi-tives. Additives such as break-in oils, top oils, graphitizes,and friction - reducing liquidsare not necessary and canharm the engine.

Type of operation

UDXtra Engine oil

*Non-UDXtra Engine oil

Type 1 24,000 mile(40,000 km)

15,000 mile(25,000 km)

Type 2 30,000 mile(48,000 km)

20,000 mile(32,000 km)

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3anging engine oil

CAUTION

o not drive the vehicle withhe engine oil level below theOW mark on the engine oil

evel gauge. An insufficientuantity of engine oil canause engine seizure.se care to keep dirt andebris from entering the crank-ase through the oil filler porthen adding engine oil.

WARNING

o avoid serious injury fromot engine and engine oil, onlyhange oil after engine hasooled.

CAUTION

ry to avoid direct skin contactith used oil. If skin contact isade, wash thoroughly with

oap or hand cleaner as soons possible.

1 - 34

marks on the engine oil levelgauge.

.If oil level is low, add engine oil ofthe proper viscosity for the antici-pated temperature range duringthe service interval through the oilfiller port located on the valvecover on top of the engine. Do notadd oil above the MAX mark onthe engine oil level gauge.

4.Change the oil if it shows signs ofcontamination such as discolor-ation and changes in oil texture.See the instructions under the cap-tion "Changing engine oil"on page11-34.

5.After adding oil, wait at least 10minutes, then recheck the oil level.

6.After checking, securely insert theengine oil level gauge.

Ch WARNING

Be careful not to spill oil. Donot add oil if engine or exhaustsystem are hot. Spilling oil onhot parts can result in a fire.

DtLlqc

Udcw

Thcc

Twmsa

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11 - 35

VEHICLE SERVICE AND MAINTENANCE

plug in the drain hole and tightenthe drain plug.Replace washer with new ones foreach remove the drain plug.Tightening torque:

40 to 44 ft·lbf (54 to 59 N·m) (5.5 to 6.0 kgf·m)

5.Replace the oil filter. Refer to "Oilfilter"on page 11-36 for the instruc-tions.

6.Add engine oil through the oil fillerport.

7.After refilling the engine oil, wait forat least 10 minutes, then using theoil level gauge (dipstick) check theoil level. If the engine oil level islow, add additional oil. Wait 10minutes, then recheck the oil level.Repeat this procedure until theengine oil reading on the engine oillevel gauge is between MAX andMIN.

Engine oil capacity

The engine oil change interval varieswith the type of engine oil used andvehicle driving conditions. If the vehi-cle is driven for extended periods oftime at high or low speeds, in dustyareas, with frequent idling or carryingheavy loads, engine oil will deterio-rate faster and require more frequentchanging.As the temperature rises, the engineoil’s viscosity decreases, reducing itslubricating effect. To choose an oilwith the proper viscosity for theanticipated ambient air temperaturerange, refer to "Oil viscosity and rela-tion between viscosity and tempera-ture:"on page 11-32.

To change the engine oil1.Park the vehicle on level ground.2.Remove the oil filler cap.

3.Place a container under the drainplug in the bottom of the oil pan.Remove the plug and drain the oilinto the container.

4.When all the oil has been drainedfrom the oil pan, replace the drain

USmeasure Liter

With oil filter 18.4 qt 17.4Withoutoil filter 18.0 qt 17.0

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O

N

he oil will drain within approxi-ately 5 minutes and the cartridge

an then be removed.ighten the drain plug.ightening torque:.4 to 16.7 ft·lbf (12.8 to 22.6 N·m).3 to 2.3 kgf·m)lace a new cartridge, turn it 3/4 to time after the seal contacts.TE:ake sure the oil drain plug isghtened to the listed specifica-on prior to the installation ofe new cartridge.

dd approximately of engine oilnd install the filler cap tightly.

tart the engine and check for oilaks.

USmeasure Liter

th oil filter 18.4 qt 17.4thout filter 18.0 qt 17.0

1 - 36

il filter

OTE:Use genuine UD Trucks filter orequivalent in quality and design.Use of an inferior filter coulddiminish operation of the engineand emission controls.Always replace the oil filter atthe same time that the engine oilis replaced.

To replace the filter

As oil is full in the cartridge after anengine stops, it is needed to drainthe oil. The following is an outline ofthe procedure.

1.Remove the air draining plug, andloosen the drain plug until it spinsfree.

2.Tmc

3.TT9(1

4.P1

NOM

titith

5.Aa

6.Sle

CAUTION

Do not handle hot oil filterwithout hand protection. Fail-ure to do so may result in burninjury.

CAUTION

Just after driving, the engineoil is still hot and can burnyou. Before changing orchecking the oil, let it cooldown until you can touch theoil without getting burned.

WiWioil

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VEHICLE SERVICE AND MAINTENANCE

Fuel tank

Water in the diesel fuel will accumu-late at the bottom of the fuel tank. Asmall area near the drain cock trapsthe water. When water has accumu-lated in the fuel filter, it has alsoaccumulated in the fuel tank. Drainthe accumulated water from the fueltank when the fuel filter is drained.To minimize loss of fuel, drain thefuel tank as it approaches empty. Donot re-use any fuel drained with thewater.To drain water from the fuel tank1.Put a container under the fuel tank

drain plug.2.Remove the drain plug from the

bottom of the fuel tank.

7.Stop the engine and wait at least10 minutes.Recheck the level and fill to theMAX mark if necessary.

Wipe any spilled oil off the engine.Do not run the engine with the oil

level below the MIN mark, or withthe filler cap and/or level gaugeremoved.

FUEL SYSTEM

A problem with the components thatsupply fuel to the engine can causelow fuel pressure. This can decreaseengine performance.1.Check the fuel level in the fuel

tank. Make sure the breather valveof the fuel tank is not clogged withdirt.

2.Check the fuel lines for fuel leak-age. Be sure the fuel supply linedoes not have a restriction or abad bend.

WARNING

After replacement of the oil fil-ter, operate the engine tocheck if there is any oil leak-age around the oil filter. Oilleakage can cause a fire.

WARNING

Keep flames and heat awayfrom the fuel system since thefuel is flammable and cancause a fire or explosion.

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3

4

TE:uel additives should not besed.or prolonged idling operation,peration in temperatures below2°F (0°C), or operation in highltitude areas (above 5,000 ft.,,500 m), winterized 2-D may besed. gasoline is put into the fuelnk by mistake, completelyrain the fuel system to removee gasoline.

WARNING

o not use ether or other start-ng aids which are flammable.

CAUTION

se diesel fuel only. Do notse gasoline or any other non-iesel fuel.

1 - 38

.Allow all the water to drain fromthe tank.

.When fuel begins to drain from thetank, replace the drain plug.Tighten the drain plug.Tightening torque:

36 to 51 ft·lbf (49 to 69 N·m) (5 to7 kgf·m)

Fuel requirements

Use only ultra-low sulfur diesel fuelwhich contains less than 15 ppm(parts per million) by volume of sul-fur.

DPF*: Diesel Particulate Filter sys-tem

Use good quality ASTM 2-D

Use diesel fuel with cetane number45 or higher. Check with the serviceestablishment to be sure you get theproperly blended fuel for the season.

NOF

uF

o3a1u

Iftadth

WARNING

Wipe off any leaked fuel, as itcould cause a fire.

CAUTION

Check the packing of the drainplug for damage. If damaged,replace with a new one.

CAUTION

The aftertreatment DPF*requires diesel fuel with a sul-fur content of less than 15 ppm(0.0015%) by weight. If the sul-fur content is higher than 15ppm (0.0015%) by weight, theDPF system and engine maybe damaged.

Expectedtemperature Preferred fuel grade

Above+20°F (-7°C)

Grade Ultra Low SulfurGrade 2-D S15

Below+20°F (-7°C)

Grade Ultra Low SulfurGrade 1-D S15

Di

Uud

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VEHICLE SERVICE AND MAINTENANCE

Fuel filter

Your UD Trucks vehicle is equippedwith a main fuel filter and primaryfuel filter with water separator.The fuel filters remove dirt and thewater separator removes water fromthe fuel.NOTE:Failure to perform periodic

maintenance can cause fuel fil-ters to clog and the fuel supplyto decrease or to stop.

Periodic maintenance of the fuel fil-ter should be performed.If the fuel is contaminated with dirt,more frequent maintenance on fuel

CAUTION

Never operate your vehiclewithout a fuel cap. If the fuelcap needs to be replaced, usea UD Trucks cap or an equiva-lent. Use of an incorrect fuelcap could result in a fuel sys-tem or emission control sys-tem malfunction.

Keep fuel clean and prevent water from entering the fuel system.

Feeding clean fuel to the enginedepends both upon the supplier andthe user.For example, when fuel is suppliedfrom a corroded storage tank, thefuel should be filtered before it is putinto the fuel tank of the vehicle.Water in fuel adversely affects thefuel injection system and engine.Water and dirt should be removedfrom fuel contaminated during stor-age.When filling the fuel tank in the rainor snow, care should be taken not toallow water in the fuel tank.Do not forget to screw on the fueltank cap securely.

Fuel filling

Keeping your fuel tank filled with fuelwill help reduce condensation withinthe tank.

Fuel cap

WARNING

Keep flames and heat awayfrom the fuel system since thefuel is flammable.Any of these can result in seri-ous injury and/or propertydamage due to fire.

Wipe off any leaked fuel, as itcould cause a fire.

WARNING

Use of an incorrect fuel cap oroperating the vehicle without afuel cap could result in a fire.

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fi"EIfpriUCdin

in filterreplace the fuel filter

lean outside the filter not to getust into the filter at the disassem-ly. Prepare a tray for drained fuelpprox. 2.1 qt [2.0 liter]) and a

ose (inner diameter 0.2 in [5 mm],ngth 3.3 ft [1 m]).ut the hose in the drain plug, andose the drain plug and air purgelug to drain the fuel. The fuel wille received by the tray. [loosenntil you can see an o-ring on thelug (approx. 0.2 in [5 mm]).fter draining, loosen the case andmove the case and element frome housing.

Fft

1 - 40

lter is required as shown inngine"on page 11-4.

you are not certain concerning theroper interval, contact your autho-zed UD Trucks dealer. Use genuineD Trucks fuel filters or equivalent.onsult your authorized UD Trucksealer regarding the quality andterchangeability of fuel filters.

Inspect the water level in the fuel fil-ter daily through the transparentcase. Drain water before it reachesthe upper portion of the transparentcase.

MaTo

1.Cdb(ahle

2.Plopbup

3.Areth

WARNING

uel is flammable and can causeire or explosion. To minimizehis hazard, do the following: Be sure to drain the fuel into acontainer and dispose of itproperly. If fuel is spilled on engineparts, wipe it off entirely.Do not smoke when perform-ing maintenance on the fuelsystem. Keep flame and heataway from the fuel system.

Use a filter wrench to loosenthe fuel filter. Use of an ordi-nary tool (for example, chain-type tool) can scratch or dentthe peripheral surface of thefuel filter. If the fuel filter isdamaged, it can cause fuel toleak.

After replacing the filter,inspect the external surface ofthe fuel filter checking forscratches and dents. It is dan-gerous to use a scratched ordented fuel filter, since it cancause fuel to leak.

After replacement of the ele-ment, operate the engine tocheck if there is any fuel leak-age around the fuel filter.

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VEHICLE SERVICE AND MAINTENANCE

Primary fuel filterTo drain water from the fuel filter

1.Stop the engine, prepare a tray toreceive drained water.

2.Loosen the drain plug and drainthe water (approx. 6.8 USfl oz [200milli liter] into the tray).

3.After finish the draining, tighten thedrain plug securely by hand.

4.Install a new o-ring for the caselubricating it with clean diesel fuel.

5.After putting a new element intothe case, place it to the housingand tighten the case to the follow-ing torque.Tightening torque:26 to 29 ft·lbf (35 to 40 N·m)(3.6 to 4.1 kgf·m)

6.Tighten the drain plug and airpurge plug securely by hand.

7.After the filter change, purge theair from the fuel system. For airpurging details, refer to "Purgingair from fuel system"on page 11-43.

8.Start engine and check the fuelsystem for leaks.

WARNING

Using improper fuel filters canshorten the life of the engineand/or fuel injection system.Such fuel filters can becomedamaged or may leak fuelwhich can result in seriousinjury and/or property damagedue to fire.

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T

1

2

3

4

5

WARNING

sing improper fuel filters canhorten the life of the enginend/or fuel injection system.uch fuel filters can becomeamaged or may leak fuelhich can result in serious

njury and/or property damageue to fire.

1 - 42

o replace the fuel filter

.Clean outside the filter not to getdust into the filter at the disassem-bly. Prepare a tray for drained fuel(approx. 2.1 qt [2.0 liter]).

.Loosen the drain plug to drain thefuel. The fuel will be received bythe tray.

.After draining, loosen the case andremove the case and element fromthe housing.

.Change the o-ring for case to newone and put some clean diesel onthe new o-ring.

.After putting a new element intothe case, place it to the housingand tighten the case to the follow-

ing torque.Tightening torque:26 to 29 ft·lbf (35 to 40 N·m)(3.6 to 4.1 kgf·m)

6.Tighten the drain plug surely byhand.

7.Remove the fuel inlet plug on topof the filter and pour diesel fuelfully in it, and tighten the plug tothe following torque.Tightening torque:1.7 to 2.5 ft·lbf (2.3 to 3.4 N·m)(0.2 to 0.3 kgf·m)

8.After the filter change, purge theair from the fuel system. For airpurging details, refer to "Purgingair from fuel system"on page 11-43.

9.Start engine and check the fuelsystem for leaks.

UsaSdwid

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VEHICLE SERVICE AND MAINTENANCE

Fuel hose and clamp

Check the fuel rubber hose andclamp of the fuel system for loose-ness cracks or damage. Replacefaulty parts if necessary.

Fuel tubing

Check the fuel tubing for fractures,damage or improper installation.Replace faulty parts if necessary.Whenever the fuel tubing is discon-nected, be sure to purge air from thefuel system.

WARNING

Keep flames and heat awayfrom the fuel system since thefuel is flammable.Any of these can result in seri-ous injury and/or propertydamage due to fire.

Wipe off any leaked fuel, as itcould cause a fire.

Purging air from fuel system

If air gets into the fuel system, it willcause inconsistent fuel injection andpossible engine malfunction. It istherefore necessary that any air bebled off which may have found itsway into the fuel system whilechanging fuel filters, or when the fuellines have been otherwise discon-nected.

To purge air from the fuel system

1.Prepare a tray for drained fuel(approx. 2.1 qt [2.0 liter]) and ahose (inner diameter 0.2 in [5 mm],length 3.3 ft [1 m]).

2.Put the hose in the air purge plugand loose the plug. Let the otherside of the hose get into the tray. (loosen until you can see an o-rings on the plug).

3.Push the priming pump then thefuel is pumped up from the tankand get into the filter.

4.Keep pushing the priming pumpuntil clear fuel with no air is exitingthe air purge plug.

5.After the air has been removed,tighten the air purge plug securelyby hand.

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VEHICLE SERVICE AND MAINTENANCE

nlock the clips and remove their cleaner cover.

emove the element.

CAUTION

f the viscous type (wet type)lement is sprayed with com-ressed air, washed, hit, ortruck, the filter function cane seriously deteriorated, andarly clogging may occur.

1 - 44

AIR CLEANER ELEMENTTo inspect the air cleaner service indicatorThe air cleaner service indicator isinstalled near air cleaner.Check whether a red signal is shownon the service indicator for cloggingof the air cleaner element.If the dust indicator signal is red, andif it often becomes red after resettingby pushing the button on the end,replace the element.

To replace the air cleaner element

Never clean the viscous type (wettype) air cleaner element.

1.Ua

2.R

WARNING

Keep flames and heat awayfrom the fuel system since thefuel is flammable.Any of these can result in seri-ous injury and/or propertydamage due to fire.Wipe off any leaked fuel, as itcould cause a fire.

Iepsbe

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VEHICLE SERVICE AND MAINTENANCE

or be damaged by excessivetightening.

7.Reinstall the new element in thereverse sequence of removal.

Be sure that all three clips arelocked securely when replacingthe element and housing cover.

Install the rubber seal so that itmay not be twisted.

8.After finishing replace of the ele-ment, press the reset button at theend of the indicator to reset.

CAUTION

Failure to completely installthe clips may cause a defect inthe element packing surface,allow dust into the engine, andcause premature wear of pis-tons and liners.

3.Clean the cover and inside of thecase with a clean, dry cloth.

4.Clean the vacuator valve. Be sureit is not broken or missing.

NOTE: If the vacuator valve is broken

or missing, water and dirt caneasily enter the air cleaner.Install a new vacuator valve.

5.Check the rubber seal and hosefor breakage and the clamps forlooseness. If broken, replace itwith a new part. If the clamps areloose, tighten them.

6.Replace the element.NOTE:Be sure to use genuine UD

Trucks element. Do not use aninferior element because it mayaspirate dust due to a bad seal

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D

EVcpaoN

1 - 46

RIVE BELT

ngage the parking brake securely.isually check the drive belt daily forracks and damage. If a belt is inoor condition, have it replaced byn authorized UD Trucks dealer orther qualified service facility. OTE:The belt tension measurementis recommended to be per-formed using a “sonic tension

meter”. For daily inspectionswithout the sonic tension meter,checking the amount of deflec-tion of the belt using a hand isallowed.

Check air conditioner belts for propertension by applying pressure of 22lbf (98 N) (10 kgf) with your finger tothe belt at measuring as shown inthe figure. If necessary, adjust themto their specified tensions.

WARNING

Do not check or adjust drivebelt, unless engine is off andthe transmission is in N (Neu-tral).

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VEHICLE SERVICE AND MAINTENANCE

Fan beltBecause this engine is equippedwith a belt tensioner, the adjustmentof belt deflection is not necessary.However, it is necessary to confirmthat the indicator (engraved line) ofthe belt tensioner is in the beltusable range by performing thevisual check from the X position (Xarrow view). Also, check the belt fordamage at this time.

Belt deflection22 lbf (98 N) (10 kgf) by

depressingin (mm)

0.32 - 0.36 (8.2 - 9.1)0.39 - 0.43 (10 - 11)

Air conditioner belt tension

To adjust belt tension

Air conditioner belt:

1.Loosen the lock nut A of the idlerpulley.

2.Adjust the adjusting bolt B andadjust the deflection of the belt atmeasuring point Y so that it comeswithin the standard range.The tension of the belt can beincreased by turn the adjusting boltB clockwise. 3.After adjustment, securely tighten

the lock nut A.Tightening torque:Lock nut A22.4 to 28.9 ft·lbf (30.4 to 39.2 N·m) (3.1 to 4.0 kgf·m)

Belt

When measuring with a sonic tension meter

Frequency(Hz) Number of ribs Length of span

in (mm)

Specific weight of the belt(gf/rib·m)

When new 202 - 2164 10.7 (272) 14.5

When adjusted 175 - 187

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VEHICLE SERVICE AND MAINTENANCE

Ifsisn

TPleswTsthfoRo

TERTREATMENT DEF TER

placement of DEF filter

main filter is provided under theply module (DEF pump).

place the filter on a regular basis.

TE:EF is a very safe liquid, but itight cause a very slight irrita-on for some people. If it ispilled on the body, wash it offith water, and if it is drunk mis-kenly, drink 1 or 2 cups ofilk. If milk is not available,

rink water. In all case, consult ahysician.

1 - 48

the indicator (raised line) is out oftretched belt indicator, or if the belt damaged, replace the belt with aew one.

o inspect the belt tensionerush down the belt between the pul-ys with a constant force. Check toee that the tension pulleys moveith constant speed.hen release the belt and check toee that the tension pulleys return toe original position by the springrce.eplace the belt tensioner when anyf the following conditions exist.If the pulleys do not move whenpushing down the belt.

If there are any abnormalities ofpulleys motion.

If the pulleys do not return whenreleasing the belt.

AFFIL

Re

ThesupRe

NOD

mtiswtamdp

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VEHICLE SERVICE AND MAINTENANCE

6.Clean the sealing surface of thehousing with water only.

7.Install the new filter.

To prevent dirt getting into theDEF system, clean the DEF linesand the DEF tank before remov-ing them.

Always plug DEF lines to pre-vent dirt getting into the DEFsystem and the crystallization ofthe DEF.

Replacement procedure1.Switch off the engine. NOTE:Wait at least two minutes before

removing DEF hoses to allowthe automatic draining of theDEF system and to depressurisethe DEF system.

2.Disconnect all electrical power tothe vehicle by disconnecting thebattery negative (–) terminal.Fetch equipment and place a suit-able container under the DEFpump.

3.Remove the filter cover from thepump.

4.Remove the equalizing element.

5.Insert the puller, and remove thefilter using the puller.

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VEHICLE SERVICE AND MAINTENANCE

8

9

V FILTER

placement of CCV filter

CCV (blow-by gas reducing sys-) filter captures oil contained in

w-by gas. Replace it on a regularis.

lean the area around the CCV fil-r cap to prevent dirt from enter-g during replacement.urn the filter cap counterclock-ise for removal and replace thelement.fter replacing the cap O-ring with new one, apply engine oil lightlynd install the cap. Tighten the cap

1 - 50

.Apply a thin film of engine oil to theo-ring on the new equalizing ele-ment.Install the new equalizing element.

.Install the filter cover. Tighten thefilter cover to the torque specified

on the cover.Tightening torque:15 to 18 ft·lbf (20 to 25 N·m)(2.0 to 2.5 kgf·m)

10.Connect the battery negative (–)terminal.

11.Start the engine and ensure thereis no leakage.

NOTE: If any DEF splashed onto any

part, completely wipe it off.

CC

Re

Thetemblobas

1.Ctein

2.Twe

3.Aaa

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VEHICLE SERVICE AND MAINTENANCE

TRANSMISSION GEAR OIL

Check the vehicle daily for transmis-sion oil leakage. If there is any evi-dence of oil leakage, locate andcorrect the cause. Visually check thetransmission oil level. If low, add oiluntil the level reaches the bottom ofthe filler plug hole.To check the manual transmission gear oil level1.Remove the transmission filler

plug and visually check that the oillevel reaches the bottom of thefiller hole.

WARNING

To avoid possible burn injury,allow the transmission to coolbefore checking or changingthe transmission oil.

securely until it is raised andstopped.

NOTE:Since blow-by gas, which is

reduced after intake, includes atrace of oil mist, oil comes incontact with the inner surfacesof the air intake parts evenunder normal operation environ-ment due to operation over along period of time. This is not afailure.

CAUTION

Be sure to turn the filter cap byhand. Use of a tool may dam-age the cap.

Be sure to replace the elementat the specified time. Use ofthe element after the replace-ment period may cause clog-ging of the element, resultingin increase of oil mist in theblow-by gas that is reducedafter intake.

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VEHICLE SERVICE AND MAINTENANCE

2

check the automatic transmis-n fluid level (Allison 1000, 2200 2500 series)heck the fluid while the vehicle isn level ground and the parkingrake applied. Start the engine andn for at least one minute at 900 1,000 rpm to clear the system of

ir. Shift the transmission to Drive,everse, and then to Neutral to fille clutch cavities and fluid pas-

ages.lways clean around the end ofe filler tube before removing the

ipstick. Dirt or foreign matter mustot be permitted to enter the fluidystem. It can cause valves totick, cause undue wear of trans-ission parts, or clog passages.heck the fluid level by one of thellowing procedures and report

ny abnormal fluid level to youraintenance personnel.

1 - 52

.After checking the oil level, replacethe filler plug gasket with a newone.

3.Reinsert the plug and tighten theplug.Tightening torque:UD1800 thru UD3300 MLS63 72 to 89 ft·lbf (98 to 120 N·m)

(10 to 12 kgf·m)UD2600 and UD3300

MLS63 72 to 94 ft·lbf (98 to 130 N·m)

(10 to 13 kgf·m) MPS63 87 to 101 ft·lbf (118 to 137 N·m)

(12 to 14 kgf·m)

To sioandC

obrutoaRths

AthdnssmCfoam

CAUTION

To prevent dirt and debris fromentering the transmission,clean the filler plug, transmis-sion housing, and surroundingarea before checking.If the transmission oil level islow, the transmission will notoperate normally and couldmalfunction. Check to deter-mine the cause of low oil level.Correct the condition beforeoperating the vehicle.

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VEHICLE SERVICE AND MAINTENANCE

NOTE:The fluid must be hot to ensure

an accurate check. The fluidlevel rises as temperatureincreases.

Park the vehicle on a level spot,shift to (N) neutral and apply theparking brake. Let the engine runat idle speed.

Wipe the dipstick clean and checkthe fluid level. The safe operatinglevel is any level within the HOTband on the dipstick.

If not within this range, add ordrain fluid as necessary to bringthe level to the middle of the HOTband.

<COLD CHECK>NOTE:The purpose of the cold check is

to determine if the transmissionhas enough fluid to be safely

operated until a hot check canbe made.

A cold fluid check may be madewhen engine coolant temperaturegauge starts to move. (Reference;approximately 86°F: 30°C)

Run the engine for at least 1 min-ute to clear the fluid system of air.

With the engine running at idle,wipe the dipstick clean and checkthe fluid level. Any level within theCOLD band is satisfactory foroperating the vehicle. If the level isnot within the COLD band, add ordrain fluid as necessary to bringthe level to the middle of the COLDband.

Perform a hot check at the firstopportunity after driving vehicle forat least 30 minutes. (Reference;Sump temperature is 160 to200°F: 71 to 93°C.)

<HOT CHECK>Operate the transmission in a drive

range for at least 30 minutes to getoperating temperature. (Refer-ence; 160 to 200°F: 71 to 93°C)

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VEHICLE SERVICE AND MAINTENANCE

Ts

In

uid level is within the COLD bandnge. If the fluid level is not withine range, refill fluid.

OT CHECK>fter warming up the engine andriving for about 10 to 15 minutes,ull the fluid dipstick out of the fillerbe, wipe fluid off the dipstick sur-ce, and then insert the dipstick

ack in the original position. ull out the fluid dipstick again tospect the fluid level. Check (atast twice) to make sure that the

uid level is within the HOT bandnge.

the fluid level is within the HOTand range, the inspection is com-leted. If the fluid level is not withine range, refill fluid.

1 - 54

o check the automatic transmis-ion fluid level (Allison 3000 series)

spection with the fluid dipstickCheck the fluid while the vehicle ison level ground and the parkingbrake applied. Start the engine andrun for at least one minute at 900to 1,000 rpm to clear the system ofair. Idle the engine. With the engine at idle, depressthe brake pedal and shift the rangeto D (Drive) or R (Reverse) to fillthe whole hydraulic circuit withfluid. Shift the range to N (Neutral). With the engine at idle and therange in the N (Neutral) position,inspect the fluid level.

<COLD CHECK>Pull the fluid dipstick out of the filler

tube, wipe fluid off the dipstick sur-face, and then insert the dipstickback in the original position.

Pull out the fluid dipstick again toinspect the fluid level. Check (atleast twice) to make sure that the

flrath

<HA

dptufab

Pinleflra

Ifbpth

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VEHICLE SERVICE AND MAINTENANCE

Fluid level is proper:“O L” “O K” “O K” are displayed bytwo letters in sequence, 6 letters intotal, on the digital display. Fluid level is low: “O L” “L O” “O 1” are displayed bytwo letters in sequence, 6 letters intotal, on the digital display. If the lastfigure is 1, 1 quart of fluid must beadded. Fluid level is high:“O L” “H I” “O 2” are displayed by twoletters in sequence, 6 letters in total,on the digital display. If the last figureis 2, 2 quarts of fluid must bereleased.

Inspection with the electronic fluid level sensorWarm up the engine, drive the

vehicle for about 10 to 15 minutes,

stop on a level ground, and thenshift to the N (Neutral) range.

The vehicle has been stationary forabout 2 minutes to allow the fluidto settle.

Run the engine at an idle. Push the and switches of

the selector at the same time.

NOTE:To recover the fluid level check

mode, push the N switch of theselector.

If the measuring conditions havebeen satisfied, the results will bedisplayed on the digital displayabout 2 minutes later.

CAUTION

Before the inspection, be sureto apply the parking brake.Then, while the engine is run-ning at idle, conduct theinspection. If the inspection isconducted while the enginestops, the apparent amountbecomes large.

If the fluid temperatureincreases, the fluid levelincreases. Be sure to conducta final check while the fluidtemperature is high afterwarming-up.

Before the inspection, cleanaround the end of the fillertube to prevent dust, mud orwater from entering the fillertube. If dust, mud or waterenters, a failure of the trans-mission may be caused.

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VEHICLE SERVICE AND MAINTENANCE

nual transmission gear oil nge

change the manual transmis-n gear oil

lace a container under the drainlug. Remove the drain plug andompletely drain the transmissionil.

WARNING

o avoid possible burn injury,llow the transmission to coolefore checking or changing

he transmission oil.

1 - 56

If the measuring conditions havenot been satisfied, “O L” “ -- ” “E L” are displayed by two lettersin sequence, 6 letters in total, onthe digital display. The meaningsof the last two figures are as indi-cated in the following table.

Macha

To sio

1.Ppco

Tabt

: The display is a flashing numeral, counting down from 8 to 1 until thewaiting period is complete.

Code Cause of code

“O L” “ -- ”

“X * ” Waiting period is not complete

“E L” Engine speed (rpm) too low

“E H” Engine speed (rpm) too high

“S N” N (Neutral) must be selected

“T L” Sump fluid temperature too low

“T H” Sump fluid temperature too high

“S H” Output shaft rotation

“F L”Sensor failure (may be speed sensor, throttle sensor, temperature sensor, or oil level sensor - but this indi-cation does not identify which has failed)

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VEHICLE SERVICE AND MAINTENANCE

Automatic transmission fluid filter (Allison 1000, 2200 and 2500 series)

To replace the filter1.Drain the fluid when the transmis-

sion is at normal operating sumptemperature 160 to 200°F (71 to93°C). Hot fluid flows quicker anddrains more completely.

WARNING

Do not handle hot filter withouthand protection. Failure to doso may result in burn injury.

2.After draining, replace the gasketof the drain plug with a new one.Reinsert the plug and tighten theplug.Tightening torque:UD1800 thru UD3300 MLS63 72 to 89 ft·lbf (98 to 120 N·m)

(10 to 12 kgf·m)UD2600 and UD3300

MLS63 72 to 94 ft·lbf (98 to 130 N·m)

(10 to 13 kgf·m) MPS63 87 to 101 ft·lbf (118 to 137 N·m)

(12 to 14 kgf·m)

NOTE:The drain plug contains a mag-

net. Remove any iron filings onthe plug before reinstalling theplug.

3.Fill the transmission with fresh oilthrough the filler plug hole locatedon the side of the transmission.

Oil refill capacity (Approximately)

4.Visually check the oil level and addoil, if necessary, until it reaches thebottom of the filler plug hole.

Automatic transmission fluid change

Have the automatic transmissionfluid changed by an authorized UDTrucks dealer or other qualified ser-vice facility. Use only the transmis-sion fluid listed in the"RECOMMENDED LUBRI-CANTS"on page 13-5.

PTO Oil capacitiesUS qt (liters)

MLS63Without 7.2 (6.8)With 7.8 (7.3)

MPS63Without 8.3 (7.8)With 8.8 (8.3)

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2

3

4

5

6

7

8

9

ison 3000 seriesisassembled type of filter is used incorporated in the oil pan.

lean the periphery of the filterover to prevent dust from enteringt the time of removal of the filter. emove the mounting bolts of thelter cover and pull out the covernd filter downward. eplace the filter, O-ring and sealith new ones and install to theover. When installing, apply aght coating of clean oil to thentire perimeter of O-ring and seal.Install the cover and filter com-ined in one unit into the transmis-ion body.

1 - 58

.Remove the drain plug from the oilpan and allow the fluid to drain intoa suitable container.

.Using a filter wrench, remove thecontrol-main filter by rotating itcounterclockwise.

.Remove the magnet from the filterattachment tube or from the top ofthe filter element.

.Clean any metal debris from themagnet. Report any metal pieceslarger than dust to your mainte-nance personnel.

.Reinstall the magnet onto the filterattachment tube.

.Lubricate the O-ring on the control-main filter with transmission fluid.

.Install, by hand, the control-mainfilter until the O-ring on the control-main filter touches the converterhousing.

.Turn the filter ONE FULL TURNONLY by hand, after O-ring con-tact.

10.Reinstall the drain plug and seal-ing washer.Tightening torque:

22 to 30 ft·lbf (30 to 40 N·m) (3.1to 4.1 kgf·m)

11.After refill, check the fluid leveland add the proper fluid, if neces-sary.For the fluid check procedure,refer to "To check the automatictransmission fluid level (Allison1000, 2200 and 2500 series)"onpage 11-52.

12.Start the engine. Check the filterand seal for leaks.

AllA dand

1.Cca

2.Rfia

3.Rwclie

4. bs

CAUTION

Turning the filter more thanONE FULL TURN after gasketcontact will damage the filter.

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VEHICLE SERVICE AND MAINTENANCE

2.Add oil, if necessary.3.Replace the gasket of the filler

plug with a new one. Reinsert theplug and tighten the plug.Tightening torque:

95 to 108 ft·lbf (128 to 147 N·m)(13 to 15 kgf·m)

CAUTION

Before removing the differen-tial filler plug, clean the plugand surrounding area to pre-vent dirt and debris from enter-ing filler hole.

Tightening torque:37.6 to 45.0 ft·lbf (51 to 61 N·m)(5.2 to 6.2 kgf·m)

5.After replacement, be sure to refillfluid. After refilling, check the fluidlevel.

DIFFERENTIAL GEAR OIL

Gear oil

Inspect the vehicle daily for differen-tial oil leakage. If there is any evi-dence of leakage, locate and correctthe cause. Check oil level and, if low,add oil.

To check the differential gear oil level1.Remove the filler plug and visually

check the oil level. The levelshould reach the bottom of thefiller plug hole.

WARNING

Check and/or change the dif-ferential gear oil only after therear axle cools to avoid possi-ble burn injuries.

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O

1

2

EERING SYSTEM

eel free play

check for free-play, start and idle engine. Set the front wheels to straight-ahead position andtly rotate the steering wheel to right and left until the fronteels move. Steering wheel playthe circumference of the steeringeel should be 0.39 to 1.57 inches to 40 mm) for UD1800, UD2000 UD2300 or 1.18 to 1.97 inches to 50 mm) for UD2600 and3300. If the play exceeds 1.57hes (40 mm) for UD1800,2000 and UD2300 or 1.97 inches mm) for UD2600 and UD3300,e it corrected by an authorized Trucks dealer or other qualifiedvice facility.

1 - 60

il change

.Place a container under the differ-ential drain plug. Remove the drainplug and drain the oil completely.

.After draining, replace the gasketof the drain plug with a new one.Install the plug and tighten theplug.

Tightening torque: 95 to 108 ft·lbf (128 to 147 N·m)(13 to 15 kgf·m)

NOTE:The drain plug contains a mag-

net. Remove any iron filings onthe plug before reinserting theplug.

3.Fill the differential with fresh oil.Check the oil level. Add oil until thelevel reaches the bottom of thefiller plug hole.

Oil refill capacity (Approximately)

ST

Wh

To thethelighthewhon wh(10and(30UDincUD(50havUDser

WARNING

Check and/or change the dif-ferential gear oil only after therear axle cools to avoid possi-ble burn injuries.

US measure Liters

UD1800,UD2000 and UD2300LP

6.9 qt 6.5

UD2300HD 9.5 qt 9

UD2600 and UD3300 13.8 qt 13

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VEHICLE SERVICE AND MAINTENANCE

To inspect the steering fluid level1.Visually inspect the steering sys-

tem for fluid leaks.2.The fluid level should be between

the HIGH and LOW lines. If thefluid level is below the LOW line,add steering fluid to the HIGH line.

CAUTION

Do not allow dirt or debris toenter the fluid reservoir whenopen. Always clean the fluidreservoir and cap beforeremoving the cap.

Check for proper fluid levelbefore engine start.

Steering fluid level

If the steering fluid is low or contami-nated, the power steering may notoperate normally which couldadversely affect steering control. Ifthe fluid level is low, check the steer-ing system for leaks and correct thecondition before operating the vehi-cle. If the fluid is contaminated, haveit replaced by an authorized UDTrucks dealer or qualified servicefacility. WARNING

Do not operate your vehiclewith excessive steering wheelfree-play. If free-play exists,have the vehicle thoroughlyinspected by an authorized UDTrucks dealer or qualified ser-vice facility.

WARNING

To avoid possible burn injury,allow the steering system tocool before checking or chang-ing the steering fluid.

Do not operate the vehiclewhen the steering fluid is lowor contaminated.

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S

HcTso

WARNING

rake fluid loss may indicate aeak in the brake system. Havehe brake system checkedmmediately by an authorizedD Trucks dealer or otherualified brake repair facility.o avoid fire hazard, do notllow brake fluid to contact theot parts of the exhaust sys-em.o avoid possible burn injury,llow the engine and brakeystem to cool before check-ng or changing brake fluid.f the brake (and clutch) fluid isccidentally ingested, forcehe person to vomit and secure

edical help immediately. Ifhe brake (and clutch) fluidets in an eye, flood the eyeith lots of water and get med-

cal attention immediately.

1 - 62

teering fluid and filter change

ave the steering fluid and filterhanged by an authorized UDrucks dealer or other qualifiedteering system repair facility. Usenly DEXRON®II or higher fluid.

SERVICE BRAKE SYSTEM

Brake fluid level check

Maintain the fluid level in the reser-voir between the HIGH and LOWmarks on the brake fluid reservoir. Ifthe fluid level is below the LOW markthen add brake fluid.

BltiUq

Taht

Tasi

Iatmtgwi

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VEHICLE SERVICE AND MAINTENANCE

Draining air reservoir

To drain accumulated water from the air reservoir1.Open the drain cocks.

2.Allow the water to drain.3.After draining, release the drain

cock rings and close the draincocks.

WARNING

Do not drive vehicle unlessaccumulated water has beendrained. If not, water could getinto brake system andadversely effect brake func-tion.

Brake fluid change

Have the brake fluid changed by anauthorized UD Trucks dealer orother qualified brake system repairfacility. Use only DOT 3 fluid from asealed container.NOTE:After the brake fluid has been

changed, operate the servicebrakes several times to assureproper operation.

CAUTION

Remove any dirt accumulationfrom the brake fluid reservoircap and surrounding areabefore removing the reservoircap. Do not allow dirt, debris,water or other foreign materi-als to enter the reservoir whileit is open.

Use only approved DOT 3 fluidfrom a sealed container.

Do not add brake fluid abovethe HIGH mark.

Do not allow brake fluid to con-tact the painted surfaces ofyour vehicle. Brake fluid con-tact may result in paint dam-age.

Remove the reservoir strainerand clean any foreign matterfrom it. If the reservoir con-tains sediment, have the reser-voir inspected and cleaned byan authorized UD Trucksdealer or other qualified brakerepair facility.

CAUTION

Do not expose the brake fluidto moisture when checking,adding or changing the brakefluid. Brake fluid absorbsmoisture. When it does, itsboiling point drops which cancause vapor lock and corro-sion of brake system compo-nents.

Do not add brake fluid whichhas been exposed to moistureto the system. Use fresh DOT 3fluid from a sealed containeronly.

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e the air dryer repaired by anhorized UD Trucks dealer orer qualified brake system repairility.he drained liquid contains a largeount of oil, additionally have thecompressor checked.

WARNING

avoid brake failure:isually check to be sure thatater or air is discharged fromottom drain port.eplace desiccant, filters andasket annually.o not allow drain port to clogith foreign material.

1 - 64

Air dryer

Visually check to be sure that waterdrains from the drain port of the airdryer. Water will drain when the airpressure governor stops pressuriza-tion. The governor stops pressuriza-tion when the air pressure in thereservoir reaches the upper level ofthe normal operating pressurerange. When the sound of air sup-plied to the reservoir can no longerbe heard, or when the sound of theengine changes, this condition hasbeen reached.If no water drains from the air dryer,drain the water from the air reservoir.If a large amount of water is drained,

havautothfacIf tamair

CAUTION

As vehicles are equipped withan air dryer, water will nor-mally not drain from the airreservoir when the drain cockis opened. However, a smallamount of water may drain outunder humid conditions. If alarge amount of water isdrained, the air dryer may notbe functioning properly. Checkthe air dryer.

ToV

wb

Rg

Dw

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11 - 65

VEHICLE SERVICE AND MAINTENANCE

To adjust the outer lever assemblyAfter adjusting the clutch master cyl-inder, adjust the clutch booster outerlever assembly located at the leftside of the transmission.1.Remove the return spring.2.Loosen the push rod lock nut.3.Adjust the play of the outer lever to

0.177 to 0.217 inches (approx. 4.5to 5.5 mm) by turning the push rod.

MLS63

CLUTCH

Clutch pedal free play

To check clutch pedal free play,depress the clutch pedal by handuntil resistance is felt. The play, thedistance from the point where theclutch pedal normally rests andwhere resistance is felt should be1.18 to 1.97 inches (30 to 50 mm). Ifthe play is less than 1.18 inches (30mm) or more than 1.97 inches (50mm), then adjust the clutch pedalfree play.

Adjusting clutch pedal free play

To adjust the clutch master cylinderFirst adjust the master cylinderlocated on the clutch pedal.1.Loosen the lock nut on the push

rod.2.Turn the push rod until it touches

the piston and there is no play.Under this condition, return thepush rod 4/5 turn and make surethe free play is approximately 0.04inches (1 mm).

3.Tighten the lock nut while holdingthe push rod stationary with awrench.

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456

ecking clutch fluid

TE:OT 3 brake fluid is used aslutch fluid. Be sure to handle itarefully. (Refer to "Brake fluidvel check"on page 11-62.)

clutch fluid level should beween the HIGH and LOW marksthe fluid reservoir located behind front lid. If the fluid level is low, DOT 3 brake fluid until the levelbetween the HIGH and LOWrks. Also check the clutch fluid fortamination. If the fluid appearstaminated, have the clutch fluidnged.

1 - 66

MPS63

.Tighten the lock nut.

.Reinstall the return spring.

.Check clutch disc wear with thewear indicator installed near theleft side clutch booster. Clutch discwear is within acceptable limitswhen the pointer at the wear indi-cator is between MIN and SET. Ifthe pointer goes past MIN, havethe clutch disc replaced by anauthorized UD Trucks dealer orqualified service facility.

MLS63

MPS63

Ch

NOD

ccle

Thebeton theaddis maconconcha

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VEHICLE SERVICE AND MAINTENANCE

SUSPENSION

Leaf spring

Check the leaf spring for damage,displacement of leaves or loose-ness. If loose, align the leaves andtighten bolts and nuts to the speci-fied torque. Periodically have the U-bolt nut retightened by an authorizedUD Trucks dealer or qualified servicefacility.

Tightening torque:Front spring U-bolt nut

UD1800, UD2000 and UD2300174 - 203 ft·lbf(235 - 275 N·m) (24 - 28 kgf·m)

UD2600 and UD3300362 - 398 ft·lbf(490 - 539 N·m) (50 - 55 kgf·m)

Rear spring U-bolt nutUD1800, UD2000 and UD2300

195 - 239 ft·lbf(265 - 324 N·m) (27 - 33 kgf·m)

UD2600 and UD3300362 - 398 ft·lbf

(490 - 539 N·m) (50 - 55 kgf·m)

Changing clutch fluid

Have the clutch fluid changed by anauthorized UD Trucks dealer orother qualified brake system repairfacility. Use only DOT 3 fluid from asealed container.

WARNING

To avoid fire hazard, do notallow clutch fluid to contactthe hot parts of the exhaustsystem.

CAUTION

Do not expose the clutch fluidto moisture when checking,adding or changing the clutchfluid. Clutch fluid absorbsmoisture. When it does, itsboiling point drops which cancause corrosion of clutch sys-tem components.

Do not add clutch fluid whichhas been exposed to moistureto the system. Use fresh DOT 3fluid from a sealed containeronly.

Do not allow clutch fluid tocontact the painted surfaces ofyour vehicle. Clutch fluid con-tact may result in paint dam-age.

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VEHICLE SERVICE AND MAINTENANCE

A

CavPreTfa

T

S

Cinleaaif

it is low, add more washer fluidia reservoir cap opening

TE:o not overfill the windshieldasher reservoir.

WARNING

o not use cooling systemolution in the windshieldasher reservoir. Whenprayed on the windshield,ooling system solution canignificantly diminish visibility.

1 - 68

ir spring

heck the air bellows for damage,ir leakage, looseness and levelingalve for proper functioning.eriodically have the U-bolt nuttightened by an authorized UD

rucks dealer or qualified servicecility.

ightening torque:U- bolt nut

406 - 455 ft·lbf(550 - 617 N·m) (56 - 63 kgf·m)

hock absorber

heck the shock absorber for properstallation, damage or leakage. Ifakage is present, have the shockbsorber checked or replaced by anuthorized UD Trucks dealer or qual-ied service facility.

WINDSHIELD WASHER FLUID

Open the front lid, and check thefluid level in the windshield washerreservoir daily. If low, add an appro-priate washer fluid solution. Also,check that fluid is properly sprayedonto the windshield.In cold weather, use a windshieldwasher anti-freeze with water at theproper mixture ratio. Follow the anti-freeze manufacturer’s instructionsfor the mixture ratio.Replenishing washer fluidThe windshield washer reservoirlocated behind the front lid.

1.Open the front lid, and check thewasher reservoir fluid level.

2.Ifv

NOD

w

Dswscs

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VEHICLE SERVICE AND MAINTENANCE

To check the mirror heater (Optional)

On a vehicle equipped with a mirrorheater, check the following points.Check the heater harness for slack

and twist.

CAUTION

Do not yank the heater har-ness by hand or hang on theheater harness. The heaterharness may be broken.

OUTSIDE MIRRORS

Check the outside mirrors daily fordamage, position and visibility. Alsocheck that the mirror mounting boltsare properly tightened.

Adjusting outside mirrors1.Set the stay by aligning it with the

matching mark. 2.Adjusting the outside mirror posi-

tion.Since the plain mirror on the upper

side cannot be adjusted using themirror alone, adjust it by movingthe mirror housing. The convexmirror on the lower side can beadjusted using the mirror alone.

For vehicles equipped with powermirror, refer to the "Power mirrorswitch (Optional)"on page 7-68.

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ES

TtrenAth

gular maintenance for the DPF

he muffler that is equipped withe DPF needs to be cleaned regu-rly to maintain its performanceither every 155,000 miles50,000 km] or 4,500 hours). This because unburnable ash willccumulate in the filter duringgeneration; otherwise, the soot

ccumulated in the DPF can beurned to regenerate the filter.or details on the cleaning infor-ation about the muffler that isquipped with the DPF, contactour nearest UD trucks dealer.he DPF ash level gauge that isisplayed on the multi-displayonitor indicates the amount ofsh accumulation.

1 - 70

MISSIONS CONTROL YSTEMS

o maintain efficient emissions con-ol systems operation, have themission control system mainte-ance in the VEHICLE SERVICEND MAINTENANCE performed ate intervals indicated.

Exhaust Aftertreatment System MaintenanceThe vehicle must be taken to anauthorized UD Trucks dealer toremove the ash from the Aftertreat-ment Diesel Particulate Filter andclean the Aftertreatment Hydrocar-bon Doser.Emissions MaintenanceEmissions Maintenance Interval –EPA / CARB defines this as theadjustment, cleaning, repair, orreplacement shall be recommendedat intervals no less than describedbelow.Injector tips (cleaning only), crank-case ventilationvalve, EGR filters and coolers:Medium Heavy Duty:Miles: 50,000Hours: 1500

Injectors, Turbocharger, ECM, sen-sors, actuators, EGR components(except filter and coolers), Aftertreat-ment DPF plus related components,this includes ash cleaningMedium Heavy Duty:Miles: 150,000Hours: 4500

Re

Tthla(e[2isareab

Fmey

Tdma

CAUTION

Do not modify, alter, discon-nect or remove any part of thevehicle which could affect,directly or indirectly, vehicleemissions.Do not operate your vehicle ifyou notice engine misfire, asignificant loss of performanceor other improper operation.Consult your UD Trucks dealeror other qualified service facil-ity for service.

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VEHICLE SERVICE AND MAINTENANCE

NOTE:Ash is mainly generated from

the elements included in engineoil additives. Always use thespecified engine oil to minimizeash generation.

The soot collected in the DPFthat is built in the muffler for thePM reduction device is burnedto be regenerated. However, ashis unburnable during regenera-tion and accumulates in the fil-ter. Thus, the filter must becleaned regularly.To keep the DPF efficiency, itrecommend that the manual

CAUTION

The muffler that is equippedwith the DPF for the PM reduc-tion device needs to becleaned regularly (either every155,000 miles [250,000 km] or4,500 hours) even if the DPFash level gauge does not reach“H”. If not, poor fuel economy andengine output decrease mayoccur.

DPF ash level gauge

The DPF ash level gauge indicatesthe accumulation level of the ashin the filter.

For details on how to display themeter, refer to the “Multi-displaymonitor” section in “INSTRUMENTAND CONTROLS”.

When the level reaches “H”, it indi-cates that the filter should becleaned. The system simultane-ously indicates the DPF mainte-nance warning, warning messageand comment to alert the driver ofcleaning the DPF.

DPF maintenance warning

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1 - 72

forced regeneration is per-formed once a year even if theDPF soot level indicates. Fordetails on the manual forcedregeneration, refer to the "DPFSYSTEM"on page 7-69The accumulation level shownin the DPF ash level gauge iscalculated by the control unitusing the fuel consumptiondata. Therefore, the gauge indi-cation may differ from the filtercleaning interval of the mufflerthat is equipped with the filterfor the PM reduction device(either every 155,000 miles[250,000 km] or 4,500 hours).Use the DPF ash level gaugeindication as a reference.

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VEHICLE SERVICE AND MAINTENANCE

device or element of design hasbeen removed or rendered inopera-tive by any person.Among those acts presumed to con-stitute tampering are the acts listedbelow.

WARNING

To avoid serious injury fromhot engine and exhaust sys-tem, perform maintenanceafter engine has cooled.

NOISE CONTROL SYSTEM

To assure noise control systemintegrity, the maintenance servicesshown in the following chart must beperformed at the intervals indicated.When inspecting the exhaust systemconfirm that all components areintact and securely fitted. Also checkall exhaust system components forholes, leaks and corrosion. Do notperform any prohibited act to thenoise control system as described inthe following chart.

Tampering with Noise Control System ProhibitedFederal law prohibits the followingacts or the causing thereof:

(1) The removal or rendering inoper-ative by any person other than forpurposes of maintenance, repair, orreplacement, of any device or ele-ment of design incorporated into anynew vehicle for the purpose of noisecontrol prior to its sale or delivery tothe ultimate purchaser or while it is inuse, or (2) the use of the vehicle after such

Control System Prohibited Acts

Air Intake System Removal or rendering inoperative air cleaner, intake resonator or intake duct, and piping.

Acoustical Shielding Removal of cab shields or acoustical insulation.Removal of engine enclosures.

Cooling System Removal or rendering inoperative fan clutch.Removal of fan shrouds or radiator side shields.

Engine and Drive Line SystemRemoval or rendering engine speed governor inoperative so as to allow engine speed to exceed manufacturer specifications.

Exhaust SystemRemoval or rendering inoperative exhaust system components including muffler, pipe shield or pip-ing.

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NSInre

intenance at the intervals shownhe following maintenance chart.

Mc

oling fanheck the cooling fan for damage,nd replace it when damaged.heck the cooling fan mountingolts for looseness, and tightenem if necessary.

A R = Replace or change

Months(every)

0 24 30 36 50 722 40 48 60 80 120

H A 12C A 12A 4A R 12E T 12M 6S A 12

1 - 74

oise Control System Maintenance chedule order to comply with federal noisegulation, the UD Trucks vehicle

may be equipped with the followingitems.To avoid or minimize the degradationof noise emission level, it is essentialto perform proper inspection and

main t

aintenance of noise emission ontrol system

Splash shield, under hood insulationCheck shields and under hood insu-lation for damage or looseness.Repair, replace or clean if necessary.

CoC

aC

bth

bbreviations:A = Check and adjust if T = Tighten to specified torque

necessary

Items

First EveryMiles x 1,000 3 6 9 10 12 15 18 2Kilometersx1,000 5 10 15 16 20 25 30 3

igh idling speedooling fanir intake system hose and clamps Air cleaner elementxhaust manifolds mounting nutsuffler with catalyst and exhaust pipe clamps Aplash shields, under hood insulator

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VEHICLE SERVICE AND MAINTENANCE

BATTERY

Your UD Trucks vehicle is equippedwith a maintenance-free battery atthe factory.Below are the specifications for thetwo 12 volt batteries installed at thefactory. Their reserved capacity (RC)and cold cranking amperes (CCA)are rated at 159 minutes and 622amperes.

Intake system Check the intake system compo-

nents such as ducts, hoses, reso-nator air cleaner, intake manifold,clamps and fasteners for damage.Replace if necessary. Check to besure that hose clamps and fasten-ers are tight.

Check to be sure that the aircleaner dust cover is installedsecurely.

Check the rubber gasket in thedust cover for deterioration.Replace if necessary.

Exhaust systemCheck the complete exhaust system.Check for damage, missing or mis-positioned parts, loose connections,open seams, holes, loose fasteners,or deformed or plugged outlets.Replace or tighten if necessary. Inspect for leaks at various joint con-nections and tighten clamp. Makevisual inspection for crack or holes inDPF cleaner and tail pipe. Alwaysreplace with UD Trucks recom-mended parts. Tail pipe elbow or off-set tail pipe orientation must not be

changed from standard position asoriginally received. To avoid abnormal changes in vehi-cle sound level, maintenance is nec-essary at the intervals shown in themaintenance schedules, and recordon the inspection verification formprovided. Please consult an autho-rized UD Trucks dealer.

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add distilled wateremove the cell plugs using a suit-ble tool.dd distilled water up to the uppervel.ighten cell plugs.

1 - 76

Battery electrolyte level

The battery electrolyte should bemaintained between the upper andlower levels on the case. If low, adddistilled water to the specified leveland charge the battery for at least 30minutes with the engine idling.

To 1.R

a2.A

le3.T

W 6.81 in (173 mm)

L 12.05 in (306 mm)

H 8.03 in (204 mm)

d

Positive (+) terminal:0.756 - 0.768 in(19.2 - 19.5 mm) Taper

1/9Negative (–) terminal:0.693 - 0.705 in(17.6 - 17.9 mm)

h 0.67 - 0.79 in (17 - 20 mm)

DANGER

Batteries produce explosivegases. To minimize risk of seri-ous injury or death:Keep sparks and open flame

away from the batteries. Neversmoke when working on oraround the batteries.

Make sure that adequate venti-lation is provided when work-ing on or around the battery inan enclosed area.

Do not permit metal tools tosimultaneously contact thepositive battery terminal andany other metal on either vehi-cle at the same time.

Always wear eye protectionwhen working near batteries.

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VEHICLE SERVICE AND MAINTENANCE

Cleaning battery terminals

Periodically inspect the batterycables and connectors for corrosionand tightness. When inspecting thecables and connections:1.Stop the engine.2.Remove the battery cables and

clean contaminated or corrodedterminals. Badly corroded termi-nals can be cleaned by discon-necting the cables and rubbingwith a wire brush or sandpaper.Flush any white powder from theterminals with lukewarm water andwipe clean.

WARNING

When disconnecting the bat-tery cables, remove the cablefrom the negative (–) terminalfirst. When reconnecting thecables, attach the cable to thenegative (–) terminal last.

Specific gravity of battery electro-lyte

The specific gravity of the batteryelectrolyte determines the batterycondition. The specific gravitydecreases as the battery dischargesand increases as it is charged. Theelectrolyte temperature also affectsthe specific gravity. The specificgravity of a fully-charged battery is1.280 at 68°F (20°C). Check thespecific gravity of the battery electro-lyte in each cell with a hydrometer. Ifnecessary, have the battery checkedand charged by an authorized UDTrucks dealer or other qualified ser-vice facility.

CAUTION

Avoid battery acid contact witheyes, skin, wearing materialsor painted surfaces. Immedi-ately and thoroughly flush anycontacted area with water. Ifacid is swallowed or comesinto contact with your eyes,secure medical help immedi-ately.

CAUTION

Do not add water above thespecified level. If the batteryelectrolyte spills, it can causedamage to the vehicle equip-ment and body.

Do not add diluted sulfuricacid to the battery. Thisincreases the specific gravityof the battery electrolyte andshortens the service life of thebattery. It also affects specificgravity readings made todetermine battery charge.

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3

Aieydrea

moval. During this operation, doot touch the bulb with bare hands.

TE:hen the headlight is changed,e light axis must be adjusted.

you inevitably replaced it,ring the vehicle for inspection

mediately at the nearestuthorized UD Trucks dealer.

1 - 78

.After tightly connecting the cables,apply a thin coat of grease to theterminals to prevent corrosion.

lways dispose of automotive batter-s in a responsible manner. Followour local authorized standard forisposal. Call your local authorizedcycling center to find out more

bout recycling automotive batteries.

LIGHTSOccasionally it may become neces-sary to replace a burned out bulb onyour vehicle. When replacing bulbswith a lens, take care not to over-tighten lens screws. Overtighteningthe screws could damage the lens.NOTE:Use the same number and watt-

age as originally installed.Refer to "BULBS"on page 13-5.

Headlights

Your vehicle is equipped with halo-gen headlights.To replace a burned out headlightbulb:

1.Turn the ignition key and lightingswitch to OFF.

2.Tilt the cab.3.Turn the bulb cover toward OPEN

and remove it.4.Disconnect the harness connector.5.While pressing on the set spring,

bring it to the center to take it out.6.Insert a new bulb into the socket.

Install it in the reverse order of

ren

NOW

thIfbima

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11 - 79

VEHICLE SERVICE AND MAINTENANCE

Rear combination light

Rear turn signal light

Front turn signal light

1.Remove the fixing clips (2 loca-tions) from the rubber and turnover the rubber.

2.Remove the fixing clip from thelower cover, slide the lower coverdownward and remove it.

3.Turn the socket counterclockwiseto remove it and replace the bulbwith new one.

Front side turn signal light

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VEHICLE SERVICE AND MAINTENANCE

L

B

SES fuse box is located on the lower

tion of main dash and consists ofi-type fuses.o, they are stored in the fusible box that is located in front of theF with the muffler installed on thet side of the chassis.

en the lid or cover. Labels aboveh fuse specify the circuit currentacity of the fuse to be used in theuit. fuses are color coded: 5 amp -

; 10 amp - red; 15 amp - blue; 20p - yellow; 25 amp - natural andamp - Green; for easy identifica- of current capacity.

Lower portion of main dash

1 - 80

icense plate light

ack-up light

Clearance and identification light

Room light

FUTheporminAlslinkDPrighOpeaccapcircThetanam30 tion

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VEHICLE SERVICE AND MAINTENANCE

2.Install a new fuse with the samecurrent rating as that specified forthe circuit.

A new fuse that burns out immedi-ately could indicate other problemsin the electrical system. If thisoccurs, have the electrical circuitschecked by an authorized UD Trucksdealer or other qualified service facil-ity.

Inside fusible link box To replace a blown fuse1.Use the fuse puller to remove the

blown fuse. WARNING

When replacing a fuse, neveruse a fuse with a higher cur-rent rating than that specifiedfor the circuit. Heat producedby currents in excess of circuitcapacity can cause fire.

CAUTION

Never connect add-on electri-cal accessories (or electricalcircuits) to engine controlfuses or circuits. Doing socould cause fuses to burn out,thereby causing a possibleloss of engine and ABS func-tion.

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VEHICLE SERVICE AND MAINTENANCE

BAtilid

e handle into the hole of thease.

ide air intake filter

ull the upper and lower two filtersward you.fter cleaning, insert the filter intoe filter slot of the case until it iscked.

TE:logging of the air filter lowersir flow, resulting in poor perfor-ance of the heater and the air

onditioner.lean the air filter every 6onths or when performance ofe heater or the air conditions poor.

1 - 82

LOWER MOTOR FILTERSir filters for a heater or an air condi-oner are installed behind the front at the right side of the cab front.

The air filters for outside air intakeand inside air intake may causeclogging due to dirt or dust. Cleanthem.The installation and removal of theair filter is a cartridge type.Clean the air filter with water or air.

Outside air intake filter

<Method for removal>1.Hold the upper and lower centers

of the filter with left hand and bendthe filter toward you.

2.Hold the handle at the right end ofthe filter with right hand and pull ittoward you.

<Installation method>1.Hold the handle at the left of the fil-

ter and insert the tab around thehandle into the hole of the case.

2.Hold the upper and lower centersof the filter and bend the filtertoward you.

3.Hold the handle at the right end ofthe filter and insert the tab around

thc

Ins

1.Pto

2.Athlo

NOC

amc

Cmthis

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VEHICLE SERVICE AND MAINTENANCE

WHEELS AND TIRESTiresNote that the size charts on the fol-lowing pages are examples of typicaltire sizes and do not necessarilyapply to your vehicle.

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VEHICLE SERVICE AND MAINTENANCE

L

d

RES

I units Current SI units Current SI units

760 790 830

110) 115 (115) 120 (120)

(8.05) (8.40)

– – – – –

– – – – –

– – – – –

– – – – –

950 kg300 lb) – – – –

060 kg540 lb) – – – –

– – – – 2,120 kg(4,675 lb)

– – – – 2,240 kg(4,940 lb)

– – – – 2,300 kg(5,070 lb)

– – – – 2,500 kg(5,510 lb)

1 - 84

oad specification

Tire sizeesignation

TIRE LOAD LIMITS AT VARIOUS COLD INFLATION PRESSU(The pressure is minimum for the load.)

Current SI units Current SI units Current SI units Current SI units Current S

kPa 660 670 690 720

psi 90 (95) 95 (95) 100 (100) 105 (105) 110 (

kgf/cm2 (6.30) (6.65) (7.00) (7.35) (7.70)

Rad

ial T

ires

225/70R

19.5 (F)

Dual – 1,550 kg(3,415 lb) – – – – – – –

Single – 1,650 kg(3,640 lb) – – – – – – –

11R22.5 (G)

Dual – – – – – – – 2,650 kg(5,840 lb) –

Single – – – – – – – 2,800 kg(6,175 lb) –

245/70R

19.5 (G)

Dual – – – – – – – – – 1,(4,

Single – – – – – – – – – 2,(4,

9R22.5 (G)

Dual – – – – – – – – –

Single – – – – – – – – –

255/70R

22.5 (H)

Dual – – – – – – – – –

Single – – – – – – – – –

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VEHICLE SERVICE AND MAINTENANCE

3.Check the tires for uneven orunusual tread wear. Consult thetable below to determine the causeof uneven or unusual wear andcorrective action to be taken. Cor-rect the cause of the wear and, ifnecessary, replace the tire.

Cause Correction InflateReduce speedReduce loading

g Inflate Apply brakes slowly

Adjust toe-in Inspect and adjust service brake

Adjust toe-in or camber Inflate

Checking the tire pressure and tire condition1.Check the pressure of each tire

with a tire gauge daily. For accu-rate measurement, check the tireswhen they are cool. Be sure toinflate tires to proper pressureaccording to the load and inflationpressure table. Check tire valvesregularly for air leaks. Replace

valves when damaged or leaking.Replace missing valve caps.

2.Check the tire sidewall and treadfor cuts, cracks and damage daily.Remove any foreign objects suchas metal, glass and stoneswedged in the tread grooves andcheck for tire damage.Repair or replace as necessary.

Condition Cause Shoulder wear Underinflation

Sharp turning at high speed Excessive loading

Center wear Overinflation Slippage due to abrupt brakin

Diagonal wear Incorrect toe-in Imbalanced braking force

Heel/toe wear Incorrect toe-inUnderinflation

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VEHICLE SERVICE AND MAINTENANCE

ECdtr

ecking and retightening the eel nutsse wheel stud nuts may cause

mmy and vibration which canse damage to the wheel bear-

s. Retorque the wheel stud nutshe first 1,000 miles (1,600 km) ofration. Thereafter, check the nutstightness every 6,000 miles

,000 km) or two months of opera-, whichever occurs first and, ifessary, retorque to specification.

ing a torque wrench, alternatelyten wheel nuts. Do not exceed

eel nut torque specification. Over-tening the wheel nuts will elon-e the bolts, deform the wheels prevent tightening to the speci- torque.htening torque:UD1800 and UD2000

273 - 310 ft·lbf (370 - 420 N·m)(38 - 43 kgf·m)

UD2300, UD2600 and UD3300398 - 435 ft·lbf (540 - 590 N·m)(55 - 60 kgf·m)

1 - 86

ach tire has six wear indicators.heck the tread grooves of each tireaily. Replace a tire when any of theead indicators become visible.

<Front wheel alignment>If abnormal tire wear or ride and han-dling characteristics such as vehiclelead or wander are experienced withproperly inflated tires, the front wheelalignment should be checked.

ChwhLooshicauingat topefor (10tionnecUstighwhtighgatandfiedTig

WARNING

Be sure to confirm that thewheel has not been damagedor deformed before putting anew tire on it. Follow industryand government safety regula-tions when assembling andinflating new tires. Failure todo so could result in seriousinjury or death.

WARNING

Do not operate your vehicle:With tires inflated in excess of

the recommendations of thetire or wheel manufacturer.

With cut, cracked or damagedtires.

When any of the tire tread wearindicators are visible.

Improperly inflated and dam-aged tires, and tires with unevenor excessive wear may causeblowouts, loss of vehicle con-trol and reduced braking effec-tiveness. Inspect tires carefullyand make any necessary repairsor replacements.

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VEHICLE SERVICE AND MAINTENANCE

When tire tread pattern is identicalall the way around:

When tire tread pattern differsbetween front and rear:

NOTE:The wheel nuts on the right side

of the vehicle have right-handedthreading; the left side wheelnuts have left-handed threading.

Re-tightening procedures for reardual nuts

1.Loosen the outer wheel nuts.2.Tighten the inner wheel nuts.3.Tighten the outer wheel nuts.

Tire position rotationNOTE:For removal and mounting of

tires, refer to "TIRE CHANGE"onpage 12-6.

After rotating the position of thetires, drive the vehicle a dis-tance of 30 to 60 miles (50 to 100km) to settle the wheel disc withhub, and then retighten thewheel nuts to the specifiedtorque.

The wheel must not be over-loaded. Pay attention to the totalvehicle load, the weight distribu-tion related to individual axleloading and the matching of tirepressures in the case of dualwheels.

Tire wear differs depending onwhere the tire is mounted. Rotate thetire position to allow more even wearand extend tire life.Tire rotation is recommended every6,000 miles (10,000 km). Shown aretwo types of rotation patterns. Usethe one best suited to your needs.After rotation, adjust individual tirepressure as specified in the "Loadspecification"on page 11-84. Tightenwheel stud nuts to the requiredtorque specification and after 1,000miles (1,600 km), retorque again tospecification.

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N

anging wheel types

WARNING

e only the same type and styleeels and mounting hardware

replace original parts. not use unauthorized wheelmponents. Failure to do soay result in an assembly whiches not fit together properlysulting in premature wheel orstener failures. Mismatched orcorrect fasteners can result ine vehicle damage or possiblerious injury.asteners like bolts and nutsemoved from the vehiclehould be re-used in the samepot whenever possible. f not possible, new fastenerselected must match thoseeplaced and obtain goodetal-to-metal contact. Do not

ttempt to use the fastenersemoved from the vehicle forhe vehicle other than UD1800-D3300.

1 - 88

OTE:Mount less worn tires on frontwheels, and it is advisable tocheck the front wheels for thedynamic balance.New tires should be used inpairs and mounted on the frontwheels first.The inflation pressure of a newtire must be adjusted afterbreak-in operation.

Replace the hub bolts and nutsor wheel disc if the threads aredamaged or deformed or thewheel disc is deformed orcracked.

When replacing both dualwheels, make sure that the innerwheel nuts are securely tight-ened before installing the out-side wheel.

When installing the outsidewheel, place the air valve 180°apart from the inside wheel.

Ch WARNING

Never mix different tire size,construction or patterns on thesame axle.If tires of different patterns areto be used for the front andrear, the best combination is touse rib type tires for the frontwheels and traction type tiresfor the rear wheels.Do not use radial and bias tirestogether.After mounting dual tires,ensure that tires do not con-tact each other under a loadedcondition.

UswhtoDocomdorefainthseF

rssIsrmartU

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VEHICLE SERVICE AND MAINTENANCE

NOTE:Use only soft water for cleaning

the vehicle as the use of hardwater promotes the deteriora-tion of rubber parts and fittings.

Scrubbing with hard brushesand the like can scratch thevehicle’s painted surfaces.

Avoid getting electrical equip-ment wet. Also, close all doorsand windows so that water willnot find its way into gaps.

Carefully wash the vehicle withwater if it has come into contactwith brine, been exposed to sea-water for extended periods, orafter traveling salted winterroads.

Repair (paint) chips and otherdamage to the vehicle’s paintedsurfaces resulting from flyingpebbles and such as early aspossible.

Avoid parking the vehicle indirect sunlight, as this can alsoadversely affect the body finish.

Do not wipe the vehicle’s finishwith gasoline or alcohol.

When replacing wheels, consult yourUD Trucks dealer or qualified servicefacility before attempting any wheelor fastener changes.

APPEARANCE CARENeglecting body maintenance canbe a major cause of corrosion, whichnot only makes the vehicle unsightly,but can also bring about weakeningof the vehicle’s body and consider-ably shorten the vehicle’s life. Inorder to prevent corrosion fromoccurring and/or spreading, wewould like to suggest the observanceof the points listed below. If you should notice any abnormali-ties, such as excessive rusting,please contact your nearest autho-rized UD Trucks dealer or other qual-ified service facility.Wash away any accumulated dust,sand, mud, etc., with water, payingspecial attention to joints in the sheetmetal, wheel wells and runners, andedges. After washing, use chamoisor soft cloth to wipe away remainingwater droplets. Waxing the vehiclesurface also promotes corrosion pre-vention.We would also like to suggest rinsingthe vehicle with water after driving inrainy weather or on bad roads.

It is imperative to identify anduse only those fasteners des-ignated for use with therespective vehicle being ser-viced.

Do not attempt to mix ball seatwheels or fasteners with flangenut wheels or fasteners.

The non-domestic wheel com-ponents on this vehicle aresimilar, but not exactly thesame as domestic wheels. Donot mix non-domestic anddomestic parts.

Do not change from steelwheels to aluminum.

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VEHICLE SERVICE AND MAINTENANCE

1 - 90

Be cautious with the use ofgarage heaters as their use canalso promote corrosion.

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IN CASE OF EMERGENCY/TROUBLE-SHOOTING

IETS

GINE OVERHEATING

gine coolant temperature ge

his gauge indicates the engineoolant temperature.hen the engine coolant tempera-re becomes high while another

creen is displayed on the multi-isplay, a beep will sound and theisplay will automatically change the engine coolant temperature

auge (except when warning isisplayed).

CAUTION

o not suddenly stop thengine when it has overheated.eizure of the engine mayccur, so keep the engine

dling until the engine coolantemperature drops before turn-ng off the engine.

2 - 1

N CASE OF MERGENCY/ROUBLE-HOOTING

Proper operation of your vehicle,together with regular inspection andmaintenance, will provide safe anddependable service for many years.Occasionally a problem may arisewhich requires operator action toprevent serious injury, accident and/or damage to the vehicle. When aproblem arises, consult the followingpages for information to assist youwith the problem.Hazard Warning FlasherUse the hazard warning flasher towarn other drivers when your vehiclepresents a safety hazard. If needed,use flares, portable reflectors, andother appropriate warnings.To activate the hazard warning flash-ers, pull the switch lever located onthe right side of the steering column.The flasher will operate with the igni-tion key in any position. To turn offthe hazard warning flashers, pull theswitch lever again.

EN

Engau

Tc

Wtusddtogd

DeSoiti

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SE OF EMERGENCY/TROUBLE-SHOOTING

the neutral position or P (Park)position.

2.Operate the engine at a fast idlewith the engine throttle knoblocated to the right of the steeringcolumn.

3.Following instructions in this man-ual tilt the cab to provide ventila-tion.

4.Stop the engine when the enginecoolant temperature drops to thenormal range on the gauge.

5.After the engine and cooling sys-tem have cooled, open the radiatorcap.If the engine coolant level is belowthe bottom of the filler neck, addcoolant and take necessary caresby following instructions steps 2-4in the section, "Engine coolantlevel warning light" on page 7-45.

IN CA

If the engine coolant tempera-ture (ECT) significantlyincreases, an overheat warningwith a 2-phase indication(amber: moderate, red: severe)will appear.

Warning message or light

If the temperature gauge indicator isin the high temperature zone, keepthe engine idling and do not stop theengine until the indicator falls intothe suitable range.When the engine overheats, an

overheat warning with a 2-phaseindication (amber: moderate, red:

severe) will appear and at thesame time, a buzzer sounds.

1.Immediately stop the vehicle in asafe place. Apply the parkingbrake and shift the transmission to

CAUTION

Do not drive while the engineoverheat warning is displayed.The engine protection func-tion may provide torque derat-ing to prevent the engine frombeing damaged, so have itinspected and serviced by thenearest authorized UD Trucksdealer.

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IN CASE OF EMERGENCY/TROUBLE-SHOOTING

MP STARTING

ergency Starting

Tc

DANGER

tteries produce explosiveses. To minimize risk of seri-s injury or death:eep sparks and open flameway from the batteries. Nevermoke when working on orround the batteries.ake sure that adequate venti-

ation is provided when work-ng on or around the battery inn enclosed area.o not permit metal tools toimultaneously contact theositive battery terminal andny other metal on either vehi-le at the same time.lways wear eye protectionhen working near batteries.

2 - 3

JU

Em

WARNING

o avoid serious injury from hotoolant or steam release:Do not open the radiator fillercap while the engine coolingsystem is still hot; wait until itcools.If the radiator cap is removedright after the engine is shutoff, scalding fluid and steammay blow out under pressureand cause serious burn inju-ries.

Be extremely careful whenopening the radiator filler cap.Place a thick cloth on the capand slowly loosen it to allow areduction in pressure in thecooling system.

BagaouK

asa

Mlia

Dspac

Aw

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SE OF EMERGENCY/TROUBLE-SHOOTING

WARNING

Do not attempt to jump start avehicle having a frozen bat-tery; the battery may rupture orexplode.

Route the jumper cables toavoid parts such as fans andbelts which will move when theengines are started.

Your vehicle has a 12-volt neg-ative ground electrical system(two 12 volt batteries con-nected in parallel). Make surethat the other vehicle also hasa 12-volt negative ground elec-trical system. Do not attemptto jump start either vehicle ifyou are unsure of the othervehicle’s voltage or groundingsystem.

Do not use jumper cableswhich have been damaged orare not properly insulated.

IN CA

Before attempting to jump start avehicle, check the battery cables andconnections for corrosion and tight-

ness. Tighten the connectors andremove corrosion as necessary.Turn off all electrically operatedequipment and accessories andattempt to start the engine.When the engine still cannot bestarted because of a discharged bat-tery, use the following procedure tojump start the vehicle with the dis-charged battery.

WARNING

Do not use ether or other start-ing aids which are flammable.

The engine should never bestarted by pushing or towingthe vehicle. Since with theengine stopped the effective-ness of the service brake sys-tem is seriously reduced andthe power steering requiresgreater effort than in normalconditions.

CAUTION

Do not hold the ignition key atthe START position continu-ously for more than 15 sec-onds. Extended cranking willshorten the life of the batteryand damage the starting sys-tem. If the engine cannot bestarted on the first try, wait 30seconds and try again.

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IN CASE OF EMERGENCY/TROUBLE-SHOOTING

<

1

2

3

4

fter your engine is started,move the jumper cables in theverse order of connection.harge the discharged battery atn authorized UD Trucks dealer orther qualified service facility.

2 - 5

To jump start a vehicle>

.Position the vehicles so that thejumper cables can be attached. Donot allow the vehicles to come intocontact with one another.

.Turn off the ignitions of both vehi-cles and apply the parking brakes.

.Connect one end of one jumpercable to the red positive (+) termi-nal of the discharged battery andthe other end to the red positiveterminal of the good battery.

.Connect one end of the secondjumper cable to the groundedblack negative (–) terminal of thegood battery. Connect the otherend of the second cable to theframe of the vehicle with the dis-charged battery at a location asdistant from the battery as possi-ble. Confirm that the cables arerouted such that they will not comeinto contact with fans, belts, orother moving parts when theengines are started.

5.Start the engine of the vehicle withthe good battery. After increasingto a moderate engine speed, startthe vehicle with the dischargedbattery.

6.Arere

7.Cao

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SE OF EMERGENCY/TROUBLE-SHOOTING

WARNING

To avoid serious injury whenjacking up your vehicle:Never start the engine or get

under your vehicle while it issupported by a jack.

Select a flat, hard surfacewhen using a jack.

Place chocks at both the frontand back of the tire diagonallyopposite the tire beingreplaced.

While jacking up the vehicle,do not load or unload cargo.The jack might come off byvibration and shifting of thecenter of gravity.

When lowering the vehicle, donot open the release valve fullyat one time. The vehicle mightdrop rapidly, causing the jackto come off.

IN CA

TIRE CHANGE

Damaged tire

To replace a tire, refer to the follow-ing instructions.Jack operating instructionsFollow the jacking instructions in thismanual as well as the instructions ofthe jack manufacturer.

WARNING

Avoid full or panic braking ifyou have a flat tire while driv-ing since this may cause lossof vehicle control.Cautiously pull your vehicle offthe road while paying attentionto other traffic. Hold the steer-ing wheel firmly and park thevehicle in a level and safeplace. Apply the parking brakefirmly, turn on the hazard warn-ing flasher switch and stop theengine.

If the vehicle is operated con-tinuously with a flat tire, it maybecome hot, causing the tire toignite or burst. This is verydangerous.

An inflated tire contains airunder high pressure. Aninflated tire and wheel can bedangerous if misused, and canresult in serious injury and/orproperty damage.The maintenance of a dam-aged tire and wheel requiresthe use of proper tools, safeequipment, and tire serviceexpertise.

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IN CASE OF EMERGENCY/TROUBLE-SHOOTING

Jp

<Wa

anging tiresemoving a tire>ark on a level ground. Stop thengine and set the parking brake.urn on the hazard warningasher.lace chocks at both the front andack of the tire diagonally oppositee tire to be replaced.lace the jack(s) directly beneathe axle or other main structuredembers. Do not attempt to raisee vehicle by the bumper.sing the wheel nut wrench,osen but do not remove theheel nuts (or the outer wheel nuts working on a dual wheel) of theheel to be removed.

2 - 7

acking up the vehicle with air sus-ension

Before jacking up>hile the engine stops, operate the

ir suspension dump switch repeat-

edly to discharge air from the tankand air spring till the vehicle heightcannot be returned to the normalposition. After that, turn the ignition key to theOFF position and start the jack-upoperation.

Ch<R1.P

eTfl

2.Pbth

3.Pthmth

4.Ulowifw

CAUTION

Do not allow any person tostay in the vehicle while it is onthe jack.Remove oil and grease, if any,before using the jack.Place the jack directly underthe jack-up point.If leaving the vehicle jacked upfor a considerable time, sup-port the vehicle with woodenblocks or stands for safety.

CAUTION

If the jack-up operation is con-ducted without discharging air,the vehicle height may changeduring the operation. It is dan-gerous.

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SE OF EMERGENCY/TROUBLE-SHOOTING

not use molybdenum grease forthis purpose.

Make sure that the nut sphericalsurface faces the wheel disc.

1.Using a lever, raise and fit thewheel to the hub by aligning thewheel disc bolt holes to the hubbolts.

2.Position the wheel so that the hubbolts are in the middle of the boltholes, and then tighten the wheelnuts temporarily.

3.Loosen the jack and lower thewheels slowly.

4.Tighten the wheel nuts a little at atime in the numerical sequenceshown below to the specifiedtorque.

UD1800 and UD2000273 to 310 ft·lb (370 to 420N·m) (38 to 43 kgf·m)

UD2300, UD2600 and UD3300398 to 435 ft·lb (540 to 590N·m) (55 to 60 kgf·m)

IN CA

NOTE:The wheel nuts on the right side

of the vehicle have right-handedthreading; the left side wheelnuts have left-handed threading.

5.Raise the vehicle to the heightwhere an inflated tire will just clearthe surface.

6.Remove the wheel nuts (or theouter wheel nuts) and wheel. Ifreplacing an inside dual wheel: a) Lower the axle and loosen the

inner wheel nuts.b) Raise the vehicle again to the

height where an inflated tire willclear the surface.

c) Remove the inner wheel nutsand inner wheel.

<Installing a tire>NOTE:Replace the hub bolts and nuts

or wheel disc if the threads aredamaged or deformed or thewheel disc is deformed orcracked.

Clean the wheel mounting sur-faces with a wire brush andclean waste cloth. Dirty mount-ing surfaces may cause thewheel nut to loosen.

Before reinstalling the wheel,apply a small amount of engineoil or grease to the threadedportions of the hub bolts andwheel nuts and the sphericalsurfaces of the ball seats. Do

Page 284: Manual Nissan Ud

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IN CASE OF EMERGENCY/TROUBLE-SHOOTING

(U

(U

WING

TE:urn signals do not work whene hazard warning flasher

witch is operating.

ing the vehicleere is a need to tow your vehicle:nload your vehicle.urn the ignition key to the OFFosition.elease the parking brake.hift the transmission to the NEU-RAL position.se a qualified towing service with suitable lift and towing equip-ent.hen possible, tow the vehicle

om the front.

WARNING

hen towing your vehicle,bserve all state and local lawsnd regulations.

2 - 9

D1800 and UD2000)

D2300)

(UD2600 and UD3300)

NOTE:When replacing both dual

wheels, make sure that the innerwheel nuts are securely tight-ened before installing the out-side wheel.

When installing the outsidewheel, place its air valve 180°apart from the inside wheel.

After changing the wheels, drivethe vehicle a distance of 30 to 60miles (50 to 100 km) to settle thewheel disc with hub, and thenretighten the wheel nuts to thespecified torque.

TO

NOT

ths

TowIf th1.U2.T

p3.R4.S

T5.U

am

6.Wfr

Woa

Page 285: Manual Nissan Ud

12 - 10

SE OF EMERGENCY/TROUBLE-SHOOTING

be removed or the rear wheels mustbe raised.Releasing parking brake(With spring-activated rear wheel parking brake vehicles)In case of an emergency when theair pressure cannot be restored andthe vehicle must be towed the park-ing brakes must be released manu-ally as follows:

WARNING

To avoid serious injury orproperty damage, be sure toblock the wheels so that thevehicle cannot move when thebrakes are manually released. For towing, make sure thevehicle is securely connectedto the tow vehicle beforereleasing the parking brakes.

Do not operate the vehiclewhen the parking brake acti-vates automatically.Have the brake systemchecked and repaired by anauthorized UD Trucks dealer ora qualified brake repair facility.

IN CA

Towing with front axle off ground or with all wheels on ground. To tow the vehicle from the front,remove either the propeller shaft orthe rear axle shafts. If the rear axleshafts are removed, drain lubricantto prevent it from leaking from therear axle housing. Cover both endsof the rear axle housing to keep outdirt. Attach the chains to or place ajack or jacks directly under the mainstructural members of the vehicle.

Towing with rear axle off groundTo tow the vehicle from the rear,secure the steering wheel so that thefront wheels are straight. If this can-not be done, do not tow the vehiclefrom the rear. If the vehicle isequipped with the manual transmis-sion, drain about 1.1 US pt (0.5 liter)of oil from the transmission so that itdoes not enter the clutch housing.Attach the chains to or place a jackor jacks directly under the mainstructural member of the vehicle.To tow a vehicle with an inoperativerear axle, it is necessary to raise therear wheels. If the transmission isinoperative, the propeller shaft must

CAUTION

Do not raise the vehicle by itsbumpers. Always use towingchains or jacks. When usingtowing chains, attach thechains to a main structuralmember. When using a jack orjacks, place directly under amain structural member.

When towing the automatictransmission model, raise therear wheels or remove thedrive shaft.

CAUTION

Do not attempt to secure thetow chains to the bumper. Lift-ing or towing by the bumpercould result in the vehiclebreaking loose and vehiclerunaway. Attach the chains tothe main structural membersof the vehicle and use a bum-per protector bar.

Page 286: Manual Nissan Ud

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IN CASE OF EMERGENCY/TROUBLE-SHOOTING

N

[UM1

2

3

UD2600

3300]nual Release Procedure

lock the wheels to prevent theehicle from moving.

2 - 11

OTE:If the air pressure drops toapproximately 40 psi (275 kPa)(2.8 kgf/cm2) in both front andrear brake system, the parkingbrake will automatically beapplied.

D1800 and UD2000]anual Release Procedure.Block the wheels to prevent thevehicle from moving.

.Loosen the lock nuts. (See figurebelow.)

.Turn the turnbuckle to extend thepush rod until the brake shoes arereleased from the drum.

[UD2300 and UD2600]Manual Release Procedure1.Block the wheels to prevent the

vehicle from moving.2.Loosen the lock nut. (See figure

below.)3.Turn the release nut to extend the

push rod until the brake shoes arereleased from the drum.

UD2300

[UDMa

1.Bv

CAUTION

Do not apply excessive forceto the clevis. Doing so maydamage the wheel cylinder.

Page 287: Manual Nissan Ud

12 - 12

SE OF EMERGENCY/TROUBLE-SHOOTING

IN CA

2.Release the release nut by turningit counterclockwise by the speci-fied release amount (Do not useimpact wrench).

3.To ensure the compression springis fully caged, the stud lengthshould be approximately 2.95 in(75 mm).

CAUTION

The release nut is secured onthe release bolt with the knockpin. Do not remove the knockpin for securing. If it isremoved, the spring brake can-not be released.

Page 288: Manual Nissan Ud

1

IN CASE OF EMERGENCY/TROUBLE-SHOOTING

T

T corrective action to be taken whena

E

W

Cause Correction

En

eplacecurely and remove corrosionund connectionth proper engine oil

ake air heater until light goes outl filter element

ine with hot waterom fuel system cleaner element

Cause Correction

Ea

throttle control knob

l filter element cleaner element

2 - 13

ROUBLESHOOTING

he information in the following charts may be helpful in identifying the cause and problem arises.

ngine starting problems

arm-up

Problem Possible Cause

ngine does ot turn

Starter does not turn, or turns at low speed

Battery discharged Charge or rBattery terminals disconnected, loose, or corroded Connect seGround is disconnected Secure groImproper viscosity engine oil used Replace wi

Starter turns, but engine does not start

No fuel Add fuelInsufficient preheating time Operate intFuel filter is clogged Replace fueFuel is frozen Warm fuel lAir in fuel system Bleed air frAir cleaner is clogged Replace air

Problem Possible Cause

ngine stops immediatelyfter starting

Low idling speed Adjust withNo fuel Add fuelFuel filter clogged Replace fueAir cleaner clogged Replace air

Page 289: Manual Nissan Ud

12 - 14

SE OF EMERGENCY/TROUBLE-SHOOTING

Cause Correctione parking brake completely if problem per-onsult an authorized UD Trucks dealer or ualified service facilitye fuel filter elemente air cleaner elementrakes checked and adjusted by an autho-D Trucks dealer or other qualified service

lutch checked and adjusted by an autho-D Trucks dealer or other qualified service

e at an authorized UD Trucks dealer or ualified service facility

olant solutionbelt tension or replace belts at an authorized UD Trucks dealer or other d service facility

IN CA

OperationProblem Possible Cause

Engine lacks power

Parking brake is not completely releasedReleassists, cother q

Fuel filter clogged ReplacAir cleaner clogged Replac

Brakes are draggingHave brized Ufacility

Clutch slippingHave crized Ufacility

Engine overheats

Fan clutch malfunctioning Replacother q

Radiator front is clogged with insects and debris CleanRadiator is clogged with scale CleanInsufficient coolant solution Add coDrive belt loose Adjust

Defective thermostat Checkqualifie

Page 290: Manual Nissan Ud

1

IN CASE OF EMERGENCY/TROUBLE-SHOOTING

OCause Correction

E

system and tighten connections if

cleaner elementoper pressures checked and adjusted by an autho-ucks dealer or other qualified service

checked and adjusted by an autho-ucks dealer or other qualified service

Es

th proper engine oilne oil level properlycation system and tighten connections ry

Sr teering system

Sir pressure to normal level

Ev

pecified torquermal air pressuresadjust at an authorized UD Trucks her qualified service facilityadjust at an authorized UD Trucks her qualified service facility

2 - 15

peration (Cont’d)Problem Possible Cause

xcessive fuel consumption

Fuel leaks Check fuel loose

Air cleaner clogged Replace airTire air pressure low Adjust to pr

Brakes are draggingHave brakerized UD Trfacility

Clutch slippingHave clutchrized UD Trfacility

xcessive engine oil con-umption

Improper grade or viscosity engine oil used Replace wiToo much engine oil Adjust engi

Oil leaks Check lubrias necessa

teering wheel does not eturn smoothly Insufficient lubrication of steering system Lubricate s

teering wheel is heavyTire air pressure low Adjust the aLack of power steering fluid Add fluid up

xcessive steering wheel ibration

Wheel nuts loose Tighten to sTire air pressure low or uneven Adjust to noTires partially worn Replace tire

Improperly adjusted wheel balance Check and dealer or ot

Excessive steering wheel play Check and dealer or ot

Page 291: Manual Nissan Ud

12 - 16

SE OF EMERGENCY/TROUBLE-SHOOTING

Cause Correction

at an authorized UD Trucks dealer or other d service facility

and adjust at an authorized UD Trucks or other qualified service facilitye at an authorized UD Trucks dealer or ualified service facility

air from brake system at an authorized UD dealer or other qualified brake service

or replace at an authorized UD Trucks or other qualified brake service facility loose connections. If still leaking, check

pair at an authorized UD Trucks dealer or ualified brake service facility air pressuree tiresat an authorized UD Trucks dealer or other d brake service facilityat an authorized UD Trucks dealer or other d brake service facility

at an authorized UD Trucks dealer or other d brake service facility

IN CA

Operation (Cont’d)Problem Possible Cause

Vehicle vibrates excessively

Bolts and nuts connecting propeller shafts loose Tighten

Excessive propeller shaft deflection Checkqualifie

Wheel balance out of adjustment Checkdealer

Loose propeller shaft universal joints Replacother q

Poor braking action

Air in brake systemBleed Trucksfacility

Worn liningsIncorrect shoe clearance

Adjust dealer

Brake system leaks air or fluidTightenand reother q

Brakes on one side operate more than on other

Uneven tire pressure Adjust Tires partially worn Replac

Incorrect shoe clearance Adjust qualifie

Brakes dragIncorrect shoe clearance Adjust

qualifieWheel cylinder returns improperly. Broken return spring

Checkqualifie

Page 292: Manual Nissan Ud

1

IN CASE OF EMERGENCY/TROUBLE-SHOOTING

O

O

Cause Correction

Lse connections. If still leaking, check at an authorized UD Trucks dealer or ied brake service facility

B

curely and remove corrosion

tterytension or replace beltsitch

Cause Correction

Llbe

tighten ground terminal

2 - 17

peration (Cont’d)

ther

Problem Possible Cause

oss of brake fluid Brake system leaks fluidTighten looand adjust other qualif

attery runs down

Battery terminals disconnected, loose, or corroded Connect seInsufficient battery fluid Add fluidBattery life has expired Replace baLoose or slipping drive belt Adjust belt Light or electrical device left on Turn off sw

Problem Possible Cause

ights do not come onBulb burned out Replace buFuse blown Replace fusLoose connection at system ground Clean and

Page 293: Manual Nissan Ud

13 - 1

SERVICE DATA

SERVICE DATA MAINTENANCE STANDARD

Items Maintenance Standard Remarks

Engine

Valve clearanceIntake 0.012 - 0.016 in (0.30 - 0.40 mm)

While coldExhaust 0.018 - 0.020in (0.45 - 0.50 mm)

Drive belt tensionAuto adjusting Fan belt deflection

See page 11-47. Air conditioner belt tensionEngine low idling speed 550 rpmEngine high idling speed 2,750 rpm

Chassis

Steering wheel free play0.39 - 1.57 in (10 - 40 mm) UD1800, UD2000 and UD23001.18 - 1.97 in (30 - 50 mm) UD2600 and UD3300

Wheel alignment

Toe-in0 - 0.08 in (0 - 2 mm) UD1800, UD2000 and UD2300

0 in (0 mm) UD2600 and UD3300

Camber1.5° UD1800, UD2000 and UD2300

1° UD2600 and UD3300Caster 3°20′

Brake pedal play 0.12 - 0.28 in (3 - 7 mm)Clearance between service brake drum and lining Auto adjusting

Page 294: Manual Nissan Ud

13 - 2

SERVICE DATA

MAINTENANCE STANDARD (CONT’D)

WARNING

Automatic brake slack adjusters should not be manually adjusted in an effort to correct excessive push-rod chamber stroke.This condition indicates that a problem exists with the automatic brake slack adjuster, the installation ofthe adjuster, or with the related foundation brake components, which manual adjustment will not cor-rect. The manual adjustment of automatic brake slack adjusters is a dangerous practice that could haveserious consequences, because it gives the vehicle operator a false sense of security about the brakeeffectiveness, which may likely go out of adjustment again.

Items Maintenance Standard Remarks

ChassisTire tread groove depth More than 0.063 in (1.6 mm)Clutch pedal free play 1.18 - 1.97 in (30 - 50 mm)Clutch outer lever free play 0.177 - 0.217 in (4.5 - 5.5 mm)

Page 295: Manual Nissan Ud

13 - 3

SERVICE DATA

or inlet g bolt

8.6 - 10.1 (11.7 - 13.7)

(1.2 - 1.4)

r body t

155 - 170(210 - 230) (21 - 24)

UD1800, UD2000 and UD2300

251 - 288(340 - 390) (35 - 40)

UD2600 and UD3300

rain and 95 - 108(128 - 147) (13 - 15)

unting 103 - 111

(140 - 150) (14 - 15)UD1800, UD2000 and UD2300

111 - 118(150 - 160) (15 - 16)

UD2600 and UD3300

273 - 310(370 - 420) (38 - 43)

UD1800 and UD2000

398 - 435(540 - 590) (55 - 60)

UD2300,UD2600 and UD3300

Maintenance Standard

ft·lbf (N·m) (kgf·m)Remarks

TIGHTENING TORQUE

ItemsMaintenance

Standardft·lbf (N·m) (kgf·m)

Remarks

Engine

Oil pan drain plug 40 - 44 (54 - 59) (5.5 - 6.0)

Oil filter drain plug9.4 - 16.7

(12.8 - 22.6)(1.3 - 2.3)

Valve clear-ance adjust screw nut

Rocker arm 18 (25) (2.5)

Cross-head 18 (25) (2.5)

Valve cover mount-ing bolt

8.6 - 10.1 (11.7 - 13.7)

(1.2 - 1.4)

Fuel filter case 26 - 29 (35 - 40) (3.6 - 4.1)

Primary fuel filter case

26 - 29 (35 - 40) (3.6 - 4.1)

Primary fuel filter fuel inlet plug

1.7 - 2.5 (2.3 - 3.4) (0.2 - 0.3)

Air conditioner com-pressor tension pul-ley lock nut

22.4 - 28.9 (30.4 - 39.2)

(3.1 - 4.0)

DEF filter cover 15 - 18 (20 - 25) (2.0 - 2.5)

Crankcase ventila-tion pipe mounting bolt

8.6 - 10.1 (11.7 - 13.7)

(1.2 - 1.4)

Engine Air compresspipe mountin

Chassis

Steering geamounting bol

Differential dfiller plug

Axle shaft mobolt

Wheel nut

Items

Page 296: Manual Nissan Ud

1

SERVICE DATA

T

C

g

22 - 30(30 - 40) (3.1 - 4.1)

Allison 1000, 2200 and 2500 seriesUD1800 thru UD3300

18.5 - 23.6(25 - 32) (2.5 - 3.3)

Allison 3000 seriesUD2600 and UD3300

r 37.6 - 45.0(51 - 61) (5.2 - 6.2)

Allison 3000 seriesUD2600 and UD3300

65 - 80(88 - 108) (9 - 11)

UD1800 UD2000 and UD2300

156 - 177(211 - 240)

(21.5 - 24.5)UD2600 and UD3300

36 - 51(49 - 69) (5 - 7)

25 - 33(34 - 45) (3.5 - 4.6)

UD1800 and UD2000

90 - 105(122 - 142)

(12.4 - 14.5)UD2300 and UD2600

Maintenance Standard

ft·lbf (N·m) (kgf·m)Remarks

3 - 4

IGHTENING TORQUE (Cont’d)

ItemsMaintenance

Standardft·lbf (N·m) (kgf·m)

Remarks

hassis

Chassis spring U-bolt nut

Front

174 - 203(235 - 275) (24 - 28)

UD1800, UD2000 and UD2300

362 - 398(490 - 539) (50 - 55)

UD2600 and UD3300

Rear

195 - 239(265 - 324) (27 - 33)

UD1800, UD2000 and UD2300

362 - 398(490 - 539) (50 - 55)

UD2600 and UD3300

406 - 455(550 - 617) (56 - 63)

UD2600 and UD3300 with air suspension

Front spring cen-ter bolt

35 - 53(47 - 72) (4.8 - 7.3)

UD1800, UD2000 and UD2300

80 - 94(108 - 127) (11 - 13)

UD2600 and UD3300

Rear spring center bolt

80 - 94(108 - 127) (11 - 13)

Manual transmis-sion drain and filler plug

72 - 89(98 - 120) (10 - 12)

MLS63UD1800 thruUD3300

87 - 101(118 - 137) (12- 14)

MPS63UD2600 andUD3300

Chassis

Automatic trans-mission drain plu

Automatic trans-mission filter covemounting bolt

Propeller shaft mounting bolt

Fuel tank drain plug

Actuator lock nut

Items

Page 297: Manual Nissan Ud

13 - 5

SERVICE DATA

LUBRICANTS

fe Diesel Engine Antifreeze/Coolant

Specifications Remarks

VDS-4 See page 11-31API :GL-4 #80W/90

Refer to "RECOM-MENDED SAE VIS-COSITY CHART" on page 13-6.

APIGL-5

MIL-L2105B

See the Allisonautomatic transmissionfluid recommen-dations next page.

UD1800 thru UD3300

DEXRON® II or higher grade

GM ATF type

NLGI No. 1Lithium soap baseh a NLGI No. 2 or

NLGI No. 3

DOT 3 US FMVSSNo. 116

- (1)

BULBS RECOMMENDED

Remarks:(1) UDXtra Long Li

Items Wattage (W)

Trade No.

Headlight (Halogen) 60/55 HB2Front turn signal light 21 -Front side turn signal light 21 -Front clearance light 5 168Front identification light 5 168Rear combination light Tail & stop light 8/27 1157Rear turn signal light 27 1156License plate light 8 67Back-up light 27 1156Room light 10 -

Lubricant/Fluid

Engine oil

Gear oil

Manualtransmission

Differential

Automatic transmis-sion fluid

Power steering fluid

GreaseApply greaseLubricate witgrease gun

Brake and clutch fluid

Antifreeze

Page 298: Manual Nissan Ud

1

SERVICE DATA

Ati

HinAreT

S

SaeeqTthnrae

E VISCOSITY CHART

3 - 6

llison automatic transmission fluid recommenda-ons

ydraulic fluids used in the transmission are importantfluences on transmission reliability and durability.llison TranSynd fluids or TES-295 approved fluids arecommended.

his vehicle is factory filled with TranSynd fluid.

ynthetic Lubrication

ynthetic oils are offered by some oil suppliers as anlternative to the traditional, petroleum based oils forngines. These oils may be used in UD TRUCKSngines, provided UDXtra and VDS-4 they meet theuality levels specified in “Oil Quality”.he use of synthetic oils does not permit the extension ofe recommended oil change intervals. It is the contami-

ation rate, i.e., soot, and the depletion of additives,ther than base oil quality that determines the useful

ngine oil life and therefore the oil change intervals.

RECOMMENDED SA

Page 299: Manual Nissan Ud

13 - 7

SERVICE DATA

d are approximate. When filling,cified level.

US measure Liter Remarks

6.9 qt 6.5 UD1800, UD2000and UD2300LP

9.5 qt 9 UD2300DH

13.8 qt 13 UD2600 and UD3300

32.8 gal 124 UD1800 and UD2000

32.8 gal 124 UD2300

48.9 gal 185 Optional for UD2300DH only

48.9 gal 185 UD2600 and UD3300

id 4.3 qt 4

on

6.9 gal 26 With manual transmission

6.6 gal 25With Allison 1000, 2200 and 2500 series

7.9 gal 30 With Allison 3000 series

REFILL CAPACITIES (Cont’d)

NOTE:Quantities liste

observe the spe

Item US measure Liter Remarks

Engine oilWith oil filter 18.4 qt 17.4Without oil filter 18.0 qt 17.0

Power steering fluid 5.9 qt 5.5

Manual transmis-sion gear oil

UD1800 thru UD3300

Without PTO 7.2 qt 6.8

MLS63With PTO 7.8 qt 7.3

UD2600 and UD3300

Without PTO 8.3 qt 7.8

MPS63With PTO 8.8 qt 8.3

Automatic transmis-sion fluid (system total)

UD1800 thru UD3300 16.3 qt 15.4

Allison 1000, 2200 and 2500 series

UD2600 and UD3300 31.6 qt 29.9

Allison 3000 series

Item

Differential gear oil

Fuel tank

Windshield washer flu

Cooling system soluti

Page 300: Manual Nissan Ud

1

SERVICE DATA

CL

P

T

W

V

T

3 - 8

ONVERSION FACTORSength

1 inch (in) = 25.40 millimeters (mm)ressure

1 kilopascal (kPa) = 0.1450 pound/square-inch (psi)= 0.01020 kilogram/square-centimeter (kgf/cm2)

orque1 newton-meter (N·m)= 0.7375 feet-pound (ft·lbf)= 0.1020 kilogram-meter (kgf·m)

eight1 pound (lb) = 0.4536 kilogram (kg)

olume1 US pint (US pt) = 0.4732 liter1 US quart (US qt) = 0.9463 liter1 US gallon (US gal) = 3.785 liter

emperaturedegrees Fahrenheit (°F)= 1.8 x degrees Celsius (°C) + 32

Page 301: Manual Nissan Ud

14 - 1

REPORTING SAFETY DEFECTS

REPORTING SAFETY DEFECTSIf you believe that your vehicle has a defect which couldcause a crash or could cause injury or death, you shouldimmediately inform the National Highway Traffic SafetyAdministration (NHTSA) in addition to notifying UDTrucks North America, Inc. If NHTSA receives similarcomplaints, it may open an investigation, and if it findsthat a safety defect exists in a group of vehicles, it mayorder a recall and remedy campaign. However, NHTSAcannot become involved in individual problems betweenyou, your dealer, or UD Trucks North America, Inc.

To contact NHTSA, you may either call the Auto SafetyHotline toll-free at 1-800-424-9393 (or 366-0123 inWashington, D.C. area) or write to: NHTSA, U.S. Depart-ment of Transportation, Washington, D.C. 20590. Youcan also obtain other information about motor vehiclesafety from the Hotline.

Page 302: Manual Nissan Ud

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A - C

I

AAAAAsAAA

AAAAAAAAAA

Pedal play ............................13-1 ak-in............................. 1-2, 10-2

lbs ..............................11-78, 13-5 zzers .....................................7-30

bAccessories............................8-1 Air conditioner ....................... 9-1Doors & windows ...................5-1 Driving position ......................6-1 Entering & leaving cab ...........4-1 Front lid .............................. 11-20 Instruments & controls ...........7-1Lower the cab .................... 11-23Tilting the cab..................... 11-21 lendar..............................7-18, 24mber .....................................13-1 rd holder .................................8-4ster........................................13-1 V filter................................. 11-50assis grease ............. 11-16, 13-5ild restraint ..............................6-6 arette lighter...........................8-1cuit breaker...........................7-56an air act .............................. 11-1 ck ...................................7-18, 24 tchFluid ................................... 11-66

5 - 1

NDEX

bbreviation ................................1-4BS .........................................10-34 BS warning light ......................7-44 ccelerate and Resume witch ........................................7-61 ccessories.................................8-1ir cleaner element ................. 11-44 ir conditioner .............................9-1

Air vent ...................................9-1Heating...................................9-5Operation panel......................9-2

ir dryer................................... 11-64 ir pressure gauge......................7-8 ir pressure warning light..........7-43 ir spring ................................. 11-68ir suspension dump switch......7-66llison ATM fluid........................13-6 ntifreeze ........... 10-37, 11-24, 13-5ppearance care..................... 11-89 shtray ........................................8-2 utomatic transmission

Fluid change....................... 11-57 Fluid filter...................... 11-57, 58 Fluid refill capacity................13-7

Fluid temperature warning... 7-41 Maintenance .......................11-12 Maintenance informationlight ...................................... 7-50Operation........................... 10-14 Power mode indicator light .. 7-52Selector lever....................... 7-76 Selector switch .................... 7-76 Shift limit warning light ........................... 7-49, 10-30System warning ................... 7-42

BBattery

Electrolyte level ..................11-76 Gravity ................................11-77 Jump start ............................ 12-3 Specifications......................11-75

Block immersion heater .......... 10-38Blower motor filter....................11-82 Brake

Air dryer ..............................11-64 Air reservoir ........................11-63 Drum and lining clearance... 13-1 Fluid..................................... 13-5 Fluid level ...........................11-62Maintenance .........................11-9 Operation........................... 10-33

BreBuBu

CCa

CaCaCaCaCCChChCigCirCleCloClu

Page 303: Manual Nissan Ud

15 - 2

D - F

Engine idling speed ..................... 7-53, 10-7, 13-1Engine oil ...................... 11-31, 13-5Engine oil filter ........................ 11-36Engine oil pressure gauge ........ 7-12Engine oil refill capacity ............ 13-7 Engine oil temperature gauge...7-13Engine overheating ................... 12-1 Engine overspeed ................... 10-10 Engine throttle control knob ................................7-53 , 10-7 Engine warm-up switch....7-54, 10-8Exhaust brake indicator light..... 7-51Exhaust brake switch ................ 7-55Exhaust system....................... 11-75

FFan and fan shroud................ 11-27Fan drive belt .......................... 11-46 Front lid ................................... 11-20Front wheel alignment............... 13-1 Fuel ................................. 1-3, 11-38Fuel gauge ................................ 7-12Fuel system

Fuel cap ............................. 11-39Fuel filling........................... 11-39Fuel tank ............................ 11-37Main fuel filter..................... 11-40Primary fuel filter ................ 11-41

Free play ............................ 11-65 Clutch fluid ................................13-5 Clutch pedal free play ...............13-2 Cold weather ...........................10-36Console box ................................8-5 Controls.......................................7-1 Conversion factors ....................13-8 Coolant

Antifreeze................. 11-24, 13-5 Level warning light ...............7-45 Reservoir tank.................... 11-25 Temperature gauge................7-9

Coolant heater.........................10-38 Cooling system

Drive belts .......................... 11-46 Fan and fan shroud............ 11-27 Radiator ............................. 11-26

Cruise ControlAccelerate and Resumeswitch ...................................7-61 Indicator light........................7-60 Main switch ..........................7-60 Operation .............................7-60 Set and Coast button ...........7-60

Cup holder...................................8-3

DDaily maintenance.......................3-6

DEF filter..................................11-48DEF gauge ............................... 7-10DEF tank.......................... 3-17, 7-10Defrost ........................................ 9-8 Differential gear oil........ 11-59, 13-5Dilution water...........................11-26 Dimmer switch .......................... 7-57 Door pocket ................................ 8-5Doors .......................................... 5-1 Double-clutch.......................... 10-13 DPF ash level gauge ................ 7-14DPF regeneration system......... 3-20DPF soot level gauge ...... 7-14, 7-70DPF system.............................. 7-69Drive belt tension.......... 11-47, 13-1Drive belts................................11-46 Driver seat .................................. 6-1 Driving in difficult conditions ....10-11 Driving on grades ................... 10-10 Driving position ........................... 6-1

EEGR...........................................3-11ELR............................................. 6-5 Emergency starting................... 12-3 Emission control systems maintenance ............................11-70 Engine control warning light ..... 7-43

Page 304: Manual Nissan Ud

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G - M

FFF

GGGGGGGGG

HHHHHHbHHH

p start .................................12-3

yless entry system ..................5-2 Battery....................................5-3 ys ............................ 1-2, 5-1, 7-3

els........................................3-24guage setting.......................7-25f spring .............................. 11-67

hting switch...........................7-57 hts....................................... 11-78 ing clearance........................13-1 ding .................................... 10-2g life coolant ............ 11-24, 13-5er the cab.......................... 11-23ricants..................................13-5 ber support ...........................6-2

intenanceChassis ................................ 11-7 Engine.................................. 11-4 Intervals ............................... 11-3 Noise emission controlsystem................................ 11-73

5 - 3

Purging air from fuelsystem................................ 11-43

uel requirements ................... 11-38 uses ...................................... 11-80 usible link box ....................... 11-80

auges........................................7-5AWR .........................................3-2 CWR.........................................3-3 ear oil refill capacities .............13-5 ear shift lever ..........................7-75 rease ......................................13-5 reasing points ....................... 11-16 VWR .........................................3-2

azard warning flasher switch ..7-59 eadlights ............................... 11-78 eadrest......................................6-3eater .........................................9-5 eater or air conditioner lower motor filters .................. 11-82orn ..........................................7-68 otline .......................................14-1 our meter ..................................7-7

IIdentification number (VIN) ......... 2-1 Idle shut down ........................ 10-38Idling speed ........... 7-53, 10-7, 13-1Ignition key switch ...................... 7-3 Illumination control rheostat...... 7-64 Immersion heater.................... 10-38In cold weather ....................... 10-36 Indicator lights

ATM maintenance................ 7-50ATM O/D OFF...................... 7-52ATM power mode ................ 7-52Cruise Control ON ............... 7-60 Cruise Control SET.............. 7-60 Exhaust brake...................... 7-51 Exhaust gas high temperature ......................... 7-50Hazard ................................. 7-51 High beam ........................... 7-52 Intake air heater................... 7-51 Transmission PTO ............... 7-64 Turn signal ........................... 7-51

Instruments ................................. 7-1 Intake air heater indicator light ............................ 7-51

JJack operation .......................... 12-6

Jum

KKe

Ke

LLabLanLeaLigLigLinLoaLonLowLubLum

MMa

Page 305: Manual Nissan Ud

15 - 4

N - T

SSAE viscosity chart ................... 13-6 Safety reminders......................... 3-6 Seat adjustment .......................... 6-1 Seat belts .................................... 6-5 Serial number.............................. 2-2 Set and Coast button ................ 7-60 Shift limit ........................... 10-15, 30Shift lock ................................. 10-17Shock absorber....................... 11-68 Speedometer............................... 7-6 Spring-activated parkingbrake ....................................... 12-10 Starter switch .............................. 7-3 Starting the engine .................... 10-4 Starting the engine(In cold weather) .................... 10-36Steering fluid ........................... 11-61 Steering fluid filter ................... 11-62 Steering wheel ............................ 6-7 Steering wheel free play............ 13-1 Stopping engine ........................ 10-9

TTachometer ................................. 7-7 Throttle control knob ................. 7-53 Tightening torque ...................... 13-3 Tilting and telescoping steering wheel............................. 6-7

Precautions ........................ 11-19 Standard...............................13-1

Maintenance and inspectiondisplay .......................................7-20Meters .........................................7-5Metric ................................ 1-3, 13-8Mirror....................................... 11-69 Mirror heater............................ 11-69Mirror heater switch...................7-67Multi-display ..............................7-15

NNew vehicle break-in period ................................ 1-2, 10-2NHTSA......................................14-1 Noise control system............... 11-73

OOdometer ....................................7-6Operating precautions...............10-1 Outside mirrors........................ 11-69Overhead box..............................8-3 Overheating...............................12-1 Overloading....................... 3-2, 10-2Overspeed...............................10-10

PParking brake valve....... 7-76, 10-35

Parking brake warning light ...... 7-47 Passenger seat........................... 6-2Passing switch.......................... 7-57 Power mirror switch .................. 7-68Power mode switch .................. 7-65 Power socket .............................. 8-2Power steering system

Fluid......................... 11-61, 13-5Refill capacities.................... 13-7

Power window ............................ 5-4 Pregnant woman restraint .......... 6-6 Primary fuel filter......................11-41PTO ............................... 7-64, 10-22PTO switch ............................... 7-64

RRadiator

Changing coolant ...............11-28 Cleaning .............................11-26 Engine coolant level 7-45, 11-25

Recommended lubricants......... 13-5 Refill capacities......................... 13-7 Refrigerant.................................. 9-9Regeneration switch ........ 3-20, 7-70Remote control ........................... 5-2 Reporting safety defects........... 14-1 Rheostat ................................... 7-64 Room light .................................. 8-4

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ATM fluid temperature..........7-41ATM system .........................7-42Charge .................................7-32DEF low level .......................7-33DPF maintenance .....3-24, 11-71DPF regenerating........3-21, 7-72DPF regeneration restriction .............................7-73DPF system .........................3-22Engine communicationmalfunction...........................7-40Engine oil pressure ..............7-32Engine oil temperature.........7-37Engine overrun.....................7-31Engine system .....................7-38Meter communicationmalfunction...........................7-39Overheat .......................7-9, 12-1PTO engine start interrupt....10-5Starter overheat ...................10-5Vehicle electrical systemcommunication malfunction .7-40Vehicle electrical systemmalfunction...........................7-39eel alignment .......................13-1eels, tires and nuts....11-86, 12-7dow lock switch .....................5-5

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ilting the cab ......................... 11-21ire

Change.................................12-6Condition ............................ 11-85 Inflation pressure................ 11-84 Load specification .............. 11-84 Position rotation ................. 11-87 Size .................................... 11-83

ire tread groove depth .............13-2 oe-in ........................................13-1 owing .......................................12-9 owing trailers ................... 3-3, 10-3ransmission

Automatic transmission operation ............................10-14 Gear oil..................... 11-51, 13-5Manual transmission operation ............................ 10-11 Oil refill capacity ...................13-7 PTO switch...........................7-64

rip hour meter............................7-7rip meter ....................................7-7roubleshooting...................12-1, 13urn signal and hazard dicator light .............................7-51 urn signal switch......................7-57

UUnit identification ........................ 2-2

VValve clearance ........................ 13-1 Vehicle identification number ...... 2-1 Vehicle loading ................. 3-2, 10-2Vehicle operation ...................... 10-1 VIN.............................................. 2-1 Viscosity chart........................... 13-6 Volt meter ................................. 7-13

WWarming up engine................... 10-7 Warning lights ........................... 7-43

ABS ..................................... 7-44Air pressure ......................... 7-43Automatic transmissionshift limit.............. 7-49, 10-15, 30 Brake ................................... 7-47DEF low level....................... 7-10DPF clogging .............. 3-20, 7-70Engine control...................... 7-43Engine coolant level ............ 7-45Parking brake ...................... 7-47Seat belt ................................ 6-6Tilt lock................................. 7-48

Warnings................................... 7-31

WhWhWin

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WindshieldWasher fluid ...............11-68,13-7Washer reservoir................ 11-68Wiper, washer andexhaust brake switch ...........7-55

Page 308: Manual Nissan Ud