00003016:99900218: Model 3016 Crane Section 1 CRANE SPECIFICATIONS Section 2 CRANE REFERENCE Section 3 REPLACEMENT PARTS Section 4 GENERAL REFERENCE IOWA MOLD TOOLING CO., INC. BOX 189, GARNER, IA 50438-0189 TEL: 515-923-3711 TECHNICAL SUPPORT FAX: 515-923-2424 MANUAL PART NUMBER 99900218 Volume 2 - PARTS AND SPECIFICATIONS 19990716
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Model 3016 Crane · ANSI/ASME B30.5 MOBILE and LOCOMOTIVE CRANES The American Society of Mechanical Engineers United Engineering Center 345 East 47th Street New York, NY 10017 Three
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IOWA MOLD TOOLING CO., INC.BOX 189, GARNER, IA 50438-0189
TEL: 515-923-3711TECHNICAL SUPPORT FAX: 515-923-2424
MANUAL PART NUMBER 99900218
Volume 2 - PARTS AND SPECIFICATIONS
19990716
00003016:99900218:
INTRODUCTION
Read and familiarize yourself with theIMT OPERATOR’S CRANE SAFETY MANUAL
before operating or performing any maintenanceon your crane.
19980316
This volume deals with information applicable to yourparticular crane. For operating, maintenance andrepair instructions, refer to Volume 1, OPERATION,MAINTENANCE AND REPAIR.
We recommend that this volume be kept in a safeplace in the office.
This manual is provided to assist you with orderingparts for your IMT crane. It also contains additionalinstructions regarding your particular installation.
It is the user�s responsibility to maintain and operatethis unit in a manner that will result in the safestworking conditions possible.
Warranty of this unit will be void on any part of theunit subjected to misuse due to overloading, abuse,lack of maintenance and unauthorized modifications.No warranty - verbal, written or implied - other thanthe official, published IMT new machinery andequipment warranty will be valid with this unit.
In addition, it is also the user�s responsibility to beaware of existing Federal, State and Local codes andregulations governing the safe use and maintenanceof this unit. Listed below is a publication that theuser should thoroughly read and understand.
ANSI/ASME B30.5MOBILE and LOCOMOTIVE CRANES
The American Society of Mechanical EngineersUnited Engineering Center
345 East 47th StreetNew York, NY 10017
Three means are used throughout this manual to gainthe attention of personnel. They are NOTE�s,CAUTION�s and WARNING�s and are defined asfollows:
NOTEA NOTE is used to either convey additionalinformation or to provide further emphasis for aprevious point.
CAUTIONA CAUTION is used when there is the very strongpossibility of damage to the equipment or prematureequipment failure.
WARNINGA WARNING is used when there is the potential forpersonal injury or death.
Treat this equipment with respect and service itregularly. These two things can add up to a saferworking environment.
00003016:99900218: 1-119960430
SECTION 1. MODEL 3016 CRANE SPECIFICATIONS
GENERAL SPECIFICATIONS ..................................................................................... 3
POWER SOURCEIntegral-mounted hydraulic pump and PTO application. Other standard power sources may be used - minimumpower required is 12.5 horsepower based on 7 GPM at 2350 PSI (26.5 liters/min. at 162 bar).
ROTATION SYSTEMTurntable bearing with external worm gear powered with a high-torque hydraulic motor through a self-lockingworm. Total gear reduction is 73 to 1.
CYLINDER HOLDING VALVESThe base end of the extension cylinder is equipped with a pilot operated holding valve to prevent sudden cylindercollapse in the event of a hose breakage.The extend side of the lower boom cylinder is equipped with a 10 GPMcounter balance valve. The counter balance valve serves several functions. First, it is a holding valve. Secondly,it is designed to control the speed at which the lowering function operates, and allows that motion to be meteredunder load. Finally, it prevents the loss of an excess amount of oil in the event of a hose failure. Only the oil in thehose, at the time of the failure, will be lost.
CAPACITY ALERT SYSTEMA pressure switch mounted on the extend side of the lower boom cylinder and connected electrically to the lift sideof the winch, the extend side of the extension boom and the down side of the lower boom provides the capacityalert system. If the operator attempts to lift a load exceeding the rated capacity of the crane, the winch lift,extension out and lower boom down functions will not operate. To relieve the situation, the winch may be loweredor the extension boom retracted.
WINCHThe winch is powered by means of a hydraulic motor driving a 38:1 worm gear. The line speed of 20 ft/minute(6m/min), under no load, is achieved at an optimum oil flow of 7 GPM (26.5 liters/min) and one-part line.Maximum single line lifting capacity of the winch is 3000 lbs (1361 kg). The winch is equipped with 80 ft (24.4m),5/16" (.79cm), 6X25 FW PRF RRL IWRC XIPS wire rope. Nylon sheaves are located at the tip of the extensionboom. The ratio of winch drum and sheave pitch diameter is 18.6:1 for the drum and 18:1 for the snatch block andboom tip sheave. An anti-two block device is included to prevent the lower block or hook assembly from comingin contact with the boom sheave assembly.
HYDRAULIC SYSTEMThe hydraulic system is an open center, full pressure system requiring maximum flow of 7 GPM (26.5 liters/min.)at 2350 psi (162 bar). It is equipped with a four section, electric remote, stack type control valve with a 30 ft.(9.14 m) control cable. The system includes a separate hydraulic oil reservoir, suction line filter, and return linefilter.
In addition to these specifications, heavy duty electrical and cooling systems are required. It is recommended thatthe vehicle be equipped with an engine tachometer, auxiliary brake lock, and power steering.
IMT reserves the right to change specifications and design without notice.
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CAPACITY CHART
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SECTION 2. MODEL 3016 CRANE REFERENCE
MAJOR CRANE ASSEMBLIES 3
WELDMENT PART NUMBER LOCATIONS 3
GREASE ZERK LOCATIONS & LUBRICANT REQUIREMENTS 4
RECOMMENDED SPARE PARTS LIST 5
INSTALLATION 7
CRANE INSTALLATION 7
HYDRAULIC INSTALLATION 8
CONTROL VALVE TROUBLESHOOTING 9
RELAY BOARD OPERATION 11
WINCH TROUBLESHOOTING 17
ANTI TWO-BLOCKING DEVICE 19
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MAJOR CRANE ASSEMBLIES
WELDMENT PART NUMBER LOCATIONS
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GREASE ZERK LOCATIONS & LUBRICANT REQUIREMENTS
NOTE: All application points must be greased weekly under normal work loads and moderate weather conditions.Under severe operating conditions, lubrication should be performed more frequently. See Volume 1; Operation,Maintenance and Repair for additional lubrication requirements.
*ROTATE CRANE WHILE GREASING 3. LOWER CYLINDER BASE 4. LOWER CYLINDER ROD 5. MAST/LOWER BOOM HINGE PIN 6. SHEAVE PIN 7. SNATCH BLOCK PIN
SHELL ALVANIA 2EP
OR
SHELL RETINAX “A”
WEEKLY
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00003016:99900218: 2-519971119
41707846.01.19961007 BASE ASSEMBLY 5 60030116 THRUST BEARING 2 W N/A 8 70055147 ROLLER BEARING 1 W N/A 9 70055148 ROLLER BEARING 1 W N/A10 70056397 WORM GEAR 1 W N/A
89086159 MOLUB 2 P N/A
41707848.01.19960430 LOWER BOOM ASSEMBLY 5 60030007 WEAR PAD 2 W N/A 6 60030139 WEAR PAD 1 W N/A17 7BF81215 BUSHING 4 W N/A
3B036880.01.19960430 LOWER BOOM CYLINDER 3 6H040022 HEAD 1 W N/A 4 6I040143 PISTON 1 W N/A 7 73054304 C’BALANCE VALVE 10GPM 1 C N/A 8 9C161823 SEAL KIT 1 W N/A19 7BF81015 BUSHING 4 W N/A20 7BF81215 BUSHING 2 W N/A
41707849.01.19960430 EXTENSION BOOM ASSEMBLY 3 60030189 WEAR PAD 1 W N/A
3B040880.01.19960430 EXTENSION BOOM CYLINDER 5 6H025015 HEAD 1 W N/A 6 6IX02512 PISTON 1 W N/A 9 73054004 HOLDING VALVE 1 C N/A10 9B101220 SEAL KIT 1 W N/A
73054004.01.19960430 HOLDING VALVE 1 C 1 7Q072014 O-RING 3 W N/A
41707924.01.19970107 3016-20’ EXTENSION BOOM ASSEMBLY 3 60030189 WEAR PAD 1 W N/A
31709198.01.19960430 WINCH/CABLE/HOOK KIT 6 60030136 SHEAVE 3 W N/A12 70055185 FLANGE BEARING 1 W N/A16 71073920 HOOK 1 C N/A42 77041291 SWITCH 1 W N/A44 51713168 CORD REEL 1 C N/A
73733057.01.19970825 PROPORTIONAL VALVEBANK 3 73054934 PROPORTIONAL SOLENOID 1 C N/A 4 73054935 RELIEF VALVE 1 W N/A 5 73054936 SOLENOID VALVE 4 W N/A 6 7Q072013 O-RING 10 W N/A17 77044595 VALVE DRIVER 1 C N/A
93708163.01.19960430 INSTALLATION KITREF 73052006 ELEMENT-RET. FILTER 10MIC 6 P N/A
51713182.01.19960430 PROPORTIONAL REMOTE HANDLE ASSEMBLY 1 C16 77040371 TOGGLE SWITCH SPST 2 W N/A17 77040372 TOGGLE SWITCH SPDT 4 W N/A18 77040373 TOGGLE SWITCH SPST 2 W N/A19 77040374 TOGGLE SWITCH SPDT 1 W N/A
99900855.01.19960430 PROPORTIONAL REMOTE CONTROL 5 7Q072015 O-RING 1 W N/A11 77041283 PRESSURE SWITCH 2800 1 W N/A14 77041237 SOLENIOD 12V 150A 1 W N/A15 77041251 RELAY 3 W N/A
RECOMMENDED SPARE PARTS LIST1 YEAR SUPPLY
MODEL 3016 TELESCOPING CRANEFOR MANUAL: 99900218
SHELFLIFE(MO)
ORDERQTYCODEQTYDESCRIPTIONPART NO.ITEM NO.
ASSEMBLYDESIGNATION
This spare parts list does not necessarily indicate that the items can be expected to fail in the course of a year. It is intended to provide theuser with a stock of parts sufficient to keep the unit operating with the minimal down-time waiting for parts. There may be parts failures notcovered by this list. Parts not listed are considered as not being Critical or Normal Wear items during the first year of operations and you needto contact the distributor or manufacturer for availability.
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(BLANK)
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INSTALLATIONGENERALThis section contains instructions for the installationof your crane. Prior to installing the crane andhydraulic components, make sure that the chassis isready to receive the crane (refer to Section 5,Volume 1). Reinforce the chassis frame, asnecessary, and install the PTO and pump.
Each installation may vary in components used. It isimportant to use hoses of proper length, pumps ofcorrect size, and PTO�s of adequate speed.
CRANE INSTALLATIONIn addition to meeting Minimum ChassisSpecifications in Section 1, there must be sufficientroom for mounting the crane and the platform mustbe strong enough to support the crane and rated load.Install the 3016 crane only on an IMT designed andapproved truck body. The body must be designed tosustain the forces imposed by the crane when liftingthe full rated load. In addition, an IMT designedbody is designed to take full advantage of thestandard reservoir placement. This reservoir isinstalled in the cargo area of the body. Beforeattempting to install the crane, the body must beinstalled.
To install the crane:1. Use a lifting device capable of lifting the weightof the crane, 1,150 lbs (522 kg). Attach the liftingdevice to the lift brackets of the crane. The liftbrackets are located on both sides of the lowerboom, approximately 18 inches from the mast hinge.Lift the crane, apply a bead of waterproofcompound, such as silicon based caulk, to the bottomof the base. Move the chassis under the crane andlower the crane into the desired position.
2. Install the mounting tie rods, washers, and nuts tosecure the crane base to the truck body (see Figurebelow).
CRANE INSTALLATION
CAUTION
Do not attempt to apply the same torque to the selflocking nuts and tie rods as shown in the Torque DataChart. Do not exceed 200 ft-lbs. Exceeding the statedtorque of 200 ft-lbs. (28 kg-m) may damage either thecrane base or the body.
Power wrenching of the nut is not recommended untilthe lead thread of the nut insert is engaged by handturning.
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HYDRAULIC INSTALLATION
HYDRAULIC INSTALLATIONBefore installation, see installation kit drawing in theparts section for specific hydrualic components.
1. Install the gate valve to the suction port, and thereturn filter to the return port of the standardreservoir with a 3/4� pipe nipple and gate valve.
2. Install the 1� diameter hose between the pumpand the suction filter, using barbed nipples and hoseclamps. See figure below.
3. Install the 3/8� diameter hose between the pumpand the valve bank inlet section.
4. Install the 1/2� diameter hose between the valvebank outlet section and the reservoir.
5. Fill the hydraulic reservoir (refer to Volume 1 forhydraulic oil specifications).
6. Check all connections for leaks.
7. Start the vehicle engine and test each cranefunction individually. Conduct a visual inspection tomake certain that there are no leaks and thateverything is operating properly.
8. Check the oil level in the reservoir and add oil ifnecessary.
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CONTROL VALVE TROUBLESHOOTINGGENERALThis section describes the operating characteristicsof the main control valvebank (73733057) used onthis model of crane. It also provides troubleshootinginformation which applies to this valvebank. Seefigure on following page for reference.
ELECTRICAL-AMP DRIVER
POWER LEDThe Power LED illuminates red while power is beingapplied to the valve amplifier. If the LED is notilluminated, no power is being applied to the valveamplifier.
If the Power LED does not function as described,inspect input wiring and repair or replace asnecessary. When input power is applied, the LEDshould illuminate.
PMW% LEDThe PMW% LED indicates the condition of theoutput current flowing to the proportional valve. TheLED will change colors from, red to yellow to green.The change of colors indicates the variance ofcurrent flowing to the proportional valve. Redindicates minimum current and green indicatesmaximum current. This represents the flowcondition going from low flow (red) to maximumflow (green), thus varying the speed of cranefunctions.
If the LED stays red, as the speed control trigger isactivated, a dead short is present in the circuit. Thiscould be the result of a wiring problem, shorted outproportional coil, etc. Inspect the wiring and replacethe proportional coil, if required.
MIN POTENTIOMETERThe Min adjustment pot will be used to set theminimum amount of movement of an individualfunction at the valvebank when the correspondingfunction switch at the handset is depressed. Toadjust, set engine at high speed control setting.Depress the �Rotation� function switch at thehandset. Adjust the Min pot at the AMP drivercard clockwise until crane begins to rotate orcounterclockwise until motion begins to stop. Noother electrical adjustments are required to properlyoperate the crane.
HYDRAULICS-VALVEBANK
RELIEF VALVEThe relief valve limits the maximum system pressure.Pressure limits the amount of torque or force anactuator will see. This pressure is preset to 2350 psiat 5 gpm. If the relief valve should fail, it wouldlikely stick open. This would prevent systempressure from developing and cause a lack of torque/force at the actuator. The relief valve can bechanged easily by screwing it out and replacing witha new one.
PROPORTIONAL VALVEThe proportional valve varies the oil flow to theindividual crane functions. Doing so dictates thespeed of the crane functions. As the electricalcurrent increases to the valve, by using the trigger onthe control handle, more oil is ported downstream tothe crane function. If the valve coil burns out, theoperator would be unable to vary the flow to thecrane functions. If the valve spool becomes stuck,the operator would be unable to vary thedownstream flow. If speed control is the problem, itis likely an indication of a proportional valve problem.It is necessary to verify that current is flowing to thecoil correctly, and that it is not an electrical problem.
The proportional valve can also be operated manuallyfor test purposes. The valve stem can be screwed inmanually to port oil downstream. Doing so willmanually position the valve spool and hold it in themanually commanded position.
DIRECTIONAL VALVESThe directional valves (4) control the direction of thecrane functions. When one of the solenoids isenergized, it shifts the valve spool. This allows oil toflow out one of the valve ports. If a function doesnot work, a directional valve may be to blame.
These valves have a standard manual override. Youmay manually shift the valve by pushing the pin,located in the middle of the solenoid.
00003016:99900218: 2-1019970217
VALVEBANK
CAUTIONMANUALLY OVERRIDING A DIRECTIONAL VALVEWILL PORT OIL IMMEDIATELY TO THE VALVEFUNCTION. THIS WILL CAUSE A SUDDENMOVEMENT OF THE ACTUATOR. OPERATORSAND MAINTENANCE PERSONNEL MUST KEEPTHE WORK AREA CLEAR OF OTHER PERSONNELWHEN OVERRIDING A DIRECTIONAL VALVE.
If the valve shifts using manual overrides, theproblem is of an electrical nature. Valve coils areinterchangeable and may be changed by removingthe coil nut. This allows maintenance personnel toisolate individual coil failures. If the valve cannot beactuated manually or electrically, it is necessary toreplace the section.
00003016:99900218: 2-11
RELAY BOARD OPERATION19960430
INTRODUCTIONTo understand how the relay board operates, it isnecessary to understand how the individual relaysfunction.
The Bosch relay (part number 77041251) is anormally open relay between terminals 30 and 87 andnormally closed between terminals 30 and 87a.Terminals 85 and 86 energize the relay through thecoil. See Figure 1 and 2.
Figure 3 shows the relay board with eight relaysidentified with the letters �A� through �G� and bytheir basic function. Example: Relay �A� is the�Power ON/OFF� relay, �C� is the �CompressorSpeed Control�, etc. The small numbers shown onthe individual terminals of the relay indicate wherethat terminal is connected through the circuit board,to the terminal bar. Example: Relay �A� top terminal(#9) is connected to terminal 9 of the terminal bar.The terminal bar is provided with 16 individualterminals of which the last two (15 and 16) are notused. Wires connected to the terminal bar have beenidentified according to their function in the circuit.The number of terminals used vary with eachapplication. Solid lines between relay terminalsindicate existing wiring connections, through thecircuit board.
The relay board is primarily used on vehicles withremote controlled cranes and remote control cranesand compressors. The circuitry prevents remotestarting of the truck engine unless the brakes areapplied and the PTO is engaged. It also isolates thecrane speed control from the compressor speedcontrol.
OPERATION
IGNITION “ON”When the ignition switch of the vehicle is turned�ON�, terminal 9 of the terminal bar is �HOT�. Thecoil of relay �A� is energized and voltage fromterminal 1 of the terminal bar becomes present atterminals �A� of relays �A�, �B�, �E� and �H�. SeeFigure 3.
REMOTE STARTING THE VEHICLEThe vehicle can be remotely started from the remotecontrol handle by toggling the �Crane-OFF-Compressor� switch to the �Crane� position.
To start the vehicle, the engine start switch at thehandle must be depressed. When this isaccomplished, terminal 11 of the terminal blockbecomes �HOT�. See Figure 5.
The truck starter is energized when terminals 11 and12 of the terminal bar are connected through therelay board. When terminal 11 is �HOT�, the coil inrelay �F� is energized connecting relay terminal 12and �B� on relays �F� and �G�. If terminal 14 ofrelay �H� and terminal 13 of relay �G� are grounded(brakes and PTO engaged) terminals �B� of relays�F� and �G� are �HOT�. Since terminal �B� ofrelay �F� is �HOT�, the truck starter solenoid isactivated. Energized circuits are shown as bold inFigure 5.
REMOTE ENGINE STOPWhen the engine stop button is depressed on theremote control handle, voltage is applied to terminal 6of the terminal block and of relay �D�. The coil inrelay �D� is energized and the ground of the fuelsolenoid/distributor coil is interrupted because currentcan no longer flow from terminal 7 to 8. Relay �D�is normally closed between terminals 7 and 8. SeeFigure 3.FIGURE 2. INTERNAL WIRING
FIGURE 1. BOTTOM VIEW OF RELAY
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FIGURE 3. RELAY BOARD - COMPONENTS & WIRING
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00003016:99900218: 2-13
FIGURE 4. REMOTE CONTROL HANDLE
REMOTE ENGINE SPEED (FROMCRANE)Engine speed can be controlled from the remotecontrol handle. When the engine speed switch isactivated, voltage is applied at terminal 10 of relay�E�. The coil of relay �E� is energized and currentis allowed to flow to the signal input of the speedcontrol currently installed. The speed of the enginewill remain higher as long as the engine speed switchin the remote control handle is allowed to remain inthe same position. If this switch is returned to itsoriginal position, the engine speed control coil will bede-energized through relay �E�.
Compressor operation will begin when the�Compressor-OFF-Crane� switch on the handset istoggled to the �Compressor� position. At that time,the power from the handset will provide power to thepressure switch on the compressor. When thepressure switch signals a need for more air pressure,the switch will trip and provide a signal to terminal 5of the relay board.
Relay �C� energizes the coil in the relay, connectingterminal 4 to terminal �C� of the relay which is�HOT� from relay �B�. Reference Figure 6showing circuits energized (in bold) when enginespeed is increased by the compressor. This willprovide a �HOT� signal at terminal 4 which thenprovides a 12-volt signal to input of the speed controlcurrently installed.
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00003016:99900218: 2-14
FIGURE 5. REMOTE STARTING OF VEHICLE - IGNITION “ON”
INSTALLATION1. Locate an area in the engine compartment thatwill both provide some protection against damage andaccessibility for wiring.
2. Provide adequate space between the mountingsurface and the back of the circuit board in order toprevent electrical contact. Failure to do so will causeerratic operation and/or circuit board failure.
3. Connect control wiring as indicated in WiringChart.
4. Jumper wires connections:
4-1.Jumper wires must connect J to K, and L to Mfor 12 volts excited systems. Remove the connectingwires between Ito J and M to N.
4-2.Jumper wires must connect I to J, and M to Nfor ground excited systems*. Remove theconnecting wires between J to K and L to M.
WARNINGFailure to remove the extra connecting wire will cause the relayboard to fail. Check jumper wire connections of relay boardbeing replaced. (Most relay boards are wired as stated in item4-1.)
* NOTESCircuits that could be ground excited are 6 - 10 & 11.Quick Check: (Before connecting wires to circuit board)Activate the engine stop switch from the crane. If terminal 6 ishot, wire per 4-1. If not, wire per 4-2.
WIRING CHARTTERM WIRING CONNECTION
1 12-VOLT 2 NC 3 GROUND 4 TO SPEED CONTROL 5 SPEED CONTROL FROM COMPRESSOR 6 ENGINE STOP FROM CRANE 7 FROM FUEL SOLENOID / DISTRIBUTOR
GROUND 8 TO FUEL SOLENOID / DISTRIBUTOR
GROUND 9 12-VOLT FROM IGNITION10 SPEED CONTROL FROM CRANE11 ENGINE START FROM CRANE12 TO TRUCK STARTER13 TO PTO SWITCH, CONTROLLED14 TO BRAKE SWITCH, CONTROLLED15 NC16 NC
RELAY FUNCTION A ON / OFF, POWER B ISOLATION, SPEED CONTROL C COMPRESSOR, SPEED CONTROL D ENGINE STOP E CRANE SPEED CONTROL F ENGINE START G PTO SWITCH H BRAKE SWITCH, CONTROLLED
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WINCH TROUBLESHOOTING
00003016:99900218: 2-18(BLANK)
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00003016:99900218: 2-19
ANTI TWO-BLOCKING DEVICE COMPONENTS
IMT telescoping cranes using a winch are equippedwith an Anti Two-Blocking Device which is designedto provide a method of sensing an approaching Two-Blocking situation and prevent the crane fromentering that situation. It is the operator�sresponsibility to avoid Two-Blocking and not to relyon this device alone. The device must be checkeddaily for proper operation.
Keeping the system clean and the microswitch inoperating condition, the system should functionproperly. The flexible rod should also be checked forunusual distortion.
NOTE”Two-Blocking” is the condition in which the lower loadblock or hook assembly comes in contact with theupper load block or boom point sheave assembly.
Three means are available to relieve a two-blockingcondition. The load may be lowered to the ground,the extension boom may be retracted, or the lowerboom may be raised, thus reducing the reach of thecrane.
ANTI TWO-BLOCKING DEVICE19960430
00003016:99900218: 2-20
APPROACHING TWO-BLOCKING SITUATION
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00003016: 3-199900218:19980826
SECTION 3. MODEL 3016 REPLACEMENT PARTS
PARTS INFORMATION ............................................................................................................................. 3
BASE ASM (41707846) ............................................................................................................................. 4
CONTROL KIT-RADIO REMOTE (90713710-1) ........................................................................................ 44
CONTROL KIT-RADIO REMOTE (90713710-2) ........................................................................................ 45
CONTROL KIT-RADIO REMOTE (90713710-3) ........................................................................................ 46
CONTROL KIT-RADIO REMOTE (90713710-4) ........................................................................................ 47
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GENERALThis section contains the exploded parts drawingsand accompanying parts lists for the assemblies usedon this crane. These drawings are intended to beused in conjunction with the instructions found in theREPAIR section in Volume 1. For optionalequipment, refer to the appropriate manual, orconsult your IMT sales reprsentative.
WARNINGDO NOT ATTEMPT TO REPAIR ANY COMPONENTWITHOUT READING THE INFORMATIONCONTAINED IN THE REPAIR SECTION IN VOLUME1. PAY PARTICULAR ATTENTION TO STATEMENTSMARKED WARNING, CAUTION, OR NOTE IN THATSECTION. FAILURE TO COMPLY WITH THESEINSTRUCTIONS MAY RESULT IN DAMAGE TO THEEQUIPMENT, PERSONAL INJURY, OR DEATH.
CRANE IDENTIFICATIONEvery IMT crane has an identification placardattached to the mast or to one of the booms in aprominent location. When ordering parts,communicating warranty information, or referring tothe unit in correspondence, always include the serialnumber and model number. All inquiries should bedirected to:
Iowa Mold Tooling Co., Inc.Box 189, Garner, IA 50438-0189Telephone: 515-923-3711Product Support Fax: 515-923-2424
PARTS INFORMATIONCYLINDER IDENTIFICATIONTo insure that the proper cylinder replacement partsare recieved, it is necessary to specify the completenumber/letter sequence for any part requested. Partnumbers must be verified by checking the numberstamped on the cylinder case (See figure below)against the information included in the servicemanual. You must include the part number stampedon the cylinder case when ordering parts.
WELDMENT IDENTIFICATIONEach of the major weldments, base, mast, lowerboom, extension boom, and outriggers, have a partnumber stamped on them. Any time one of theweldments is to be replaced, it is necessary tospecify the complete part number as stamped on thatweldment. The location of the part numbers areshown Section 2.
ORDERING REPAIR PARTSWhen ordering replacement parts it is important tofollow the steps as outlined below.
1. Give the model number of the unit.2. Give the serial number of the unit.3. Specify the complete part number. When
ordering cylinder parts, or one of the mainweldments, always give the stamped partnumber.
4. Give a complete description of the part.5. Specify the quantity required.
SERIAL NUMBER PLACARD CYLINDER PART NUMBER LOCATION
WARNINGAny time the gear-bearing bolts have been removed,they must be replaced with new bolts of identical gradeand size. Failure to replace gear-bearing bolts mayresult in bolt failure due to metal fatigue causingserious injury or death.
NOTE1. Bearings must be packed with grease at
assembly.2. Apply Molub-Alloy 936 to turntable bearing and
worm teeth at assembly.3. Initial lubrication of both sides of thrust bearings
is required at the time of assembly.Approved lubricants are Slip Plate, Lubri-Plate,or other lubricants containing graphite or MSO
2.
4. Shim as required if needed.
00003016: 3-541707847.01.19960430
MAST ASM (41707847)ITEM PART NO. DESCRIPTION QTY
1. 52707912 MAST 1 2. 72063117 WASHER 9/16-12 FLAT HARD 18 3. 72601144 CAP SCR 9/16-12X2 HHGR8 18 4. 70029119 SERIAL NUMBER PLACARD 1 5. 72066340 POP RIVET 1/8 2 6. 60119128 VB COVER 1 8. 72063001 WASHER 1/4 WRT 8 9. 72060004 CAP SCR 1/4-20X1 HHGR5 410. 72062104 NUT 1/4-20 LOCK 4
WARNINGAnytime the gear-bearing bolts have been removed,they must be replaced with new bolts of identical gradeand size. failure to replace gear-bearing bolts mayresult in bolt failure due to metal fatigue, causingserious injury or death.
00003016: 3-641707848.01.19960430
LOWER BOOM ASM (41707848)ITEM PART NO. DESCRIPTION QTY
NOTEAny time the pin retainer plate bolts have beenremoved, apply Loctite 262 to the threads beforereassembly.
00003016: 3-73B036880.01.19960430
LOWER BOOM CYLINDER (3B036880)ITEM PART NO. DESCRIPTION QTY
1. 4B036880 CASE (INCL: 19-22) 1 2. 4G036880 ROD (INCL. 20&21) 1 3. 6H040022 HEAD 1 4. 6I040143 PISTON 1 5. 6C075022 STOP TUBE 1 6. 6C150022 STOP TUBE 1 7. 73054304 C’BALANCE VALVE 10GPM 1 8. 9C161823 SEAL KIT (INCL:9-18) 1 9. 7T66P040 PISTON SEAL (PART OF 8) 1REF10. 7T65I040 PISTON RING (PART OF 8) 2REF11. 7T61N143 SEAL LOCK RING (PART OF 8) 1REF12. 7R546022 ROD SEAL (PART OF 8) 1REF13. 7R14P022 ROD WIPER (PART OF 8) 1REF14. 7Q10P342 BACK-UP RING (PART OF 8) 1REF15. 7Q072342 O-RING (PART OF 8) 1REF16. 7Q072153 O-RING (PART OF 8) 1REF17. 6A025022 WAFER LOCK RING (PART OF 8)1REF18. 7T2N8025 ROD WEAR RING (PART OF 8) 1REF19. 7BF81015 BUSHING (PART OF 1) 4REF20. 7BF81215 BUSHING (PART OF 2) 2REF21. 72053507 ZERK 1/4-28 (PART OF 1&2) 2REF22. 7PNPXT02 PLUG 1/8 NPT (PART OF 1) 3REF
NOTEIT IS RECOMMENDED THAT ALL COMPONENTSOF THE SEAL KIT BE REPLACED WHENEVER THECYLINDER IS DISASSEMBLED. THIS WILLREDUCE FUTURE DOWNTIME.
APPLY “LUBRIPLATE #630-2” MEDIUMHEAVY,MULTI-PURPOSE LUBRICANT OREQUIVALENT TO ALL PISTON, HEAD GLAND, ANDHOLDING VALVE SEALS, NYLON LOCK RING,CAST IRON PISTON RINGS, AND ROD STINGERTHREADS.
APPLY “NEVER-SEEZ” REGULAR GRADE ANTI-SEIZE AND LUBRICATING COMPOUND TOCYLINDER HEAD AND CASE THREADS.
00003016: 3-841707849.01.19960430
3016 EXT BOOM ASM (41707849)ITEM PART NO. DESCRIPTION QTY
NOTECORD GUIDE (70034381) SHOULD BE INSTALLEDWITH GUIDE HOLE UP.
00003016: 3-93B040880.01.19960430
EXT BOOM CYLINDER (3B040880)ITEM PART NO. DESCRIPTION QTY
1. 4B040880 CASE 1 2. 4H309820 ROD (INCL: 7) 1 3. 6C300015 STOP TUBE 1 4. 6C309820 STOP TUBE 1 5. 6H025015 HEAD 1 6. 6IX02512 PISTON 1 7. 7PNPXT02 PLUG, 1/8 NPT (PART OF 2) 1REF 8. 72060708 SCREW 1/4-20X1-1/4 SH 6 9. 73054004 HOLDING VALVE 110. 9B101220 SEAL KIT (INCL. 11-19) 111. 6A025015 WAFER LOCK RING (PART 10) 1REF12. 7Q072137 O-RING (PART OF 10) 1REF13. 7Q072228 O-RING (PART OF 10) 1REF14. 7Q10P228 O-RING BACK-UP (PART OF 10) 1REF15. 7R14P015 ROD WIPER (PART OF 10) 1REF16. 7R546015 ROD SEAL (PART OF 10) 1REF17. 7T61N125 LOCK RING SEAL (PART OF 10) 1REF18. 7T66P025 PISTON SEAL (PART OF 10) 1REF19. 7T2N8015 WEAR RING (PART OF 10) 1REF
NOTEIT IS RECOMMENDED THAT ALL COMPONENTSOF THE SEAL KIT BE REPLACED WHENEVER THECYLINDER IS DISASSEMBLED. THIS WILLREDUCE FUTURE DOWNTIME.
APPLY “LUBRIPLATE #630-2” MEDIUMHEAVY,MULTI-PURPOSE LUBRICANT OREQUIVALENT TO ALL PISTON, HEAD GLAND, ANDHOLDING VALVE SEALS, NYLON LOCK RING,CAST IRON PISTON RINGS, AND ROD STINGERTHREADS.
APPLY “NEVER-SEEZ” REGULAR GRADE ANTI-SEIZE AND LUBRICATING COMPOUND TOCYLINDER HEAD AND CASE THREADS.
00003016: 3-1073054004.01.19960430
HOLDING VALVE (73054004)ITEM PART NO. DESCRIPTION QTY
1. 7Q072014 O-RING 3 2. VALVE BLOCK
(order complete valve assembly) 1 3. 7Q072015 O-RING 1 4. 7Q10P015 BACK-UP RING 1 5. 7Q10P017 BACK-UP RING 1 6. 7Q072017 O-RING 1 7. 7Q072018 O-RING 1 8. 7Q10P018 BACK-UP RING 1 9. VALVE BODY
(INCL:41-48,PART OF 5) 2REF41. 70142648 LEVER PIVOT(PART OF 40) 2REF42. 70142650 LEVER SUPPORT (PART OF 40) 2REF43. 70142651 CTRL LEVER (PART OF 40) 2REF44. 71392269 KNOB (PART OF 40) 2REF45. 72062021 NUT 5/16-18 HEX(PART OF 40) 2REF46. 72062024 NUT 1/2-13 HEX (PART OF 40) 2REF47. 72066162 COTTER PIN .06X1(PART OF 40)4REF48. 72661204 CLEVIS PIN (PART OF 40) 4REF49. 72533567 ELBOW #4MSTR #4MJIC XLG 2
00003016: 3-3731710966.01.19960430
OPTION-AUX OUTRIGGERS-MO/PD-6X4(31710966)(Non-IMT Mechanic Service Body Application)ITEM PART NO. DESCRIPTION QTY
INSTALLATION NOTEOUTRIGGER HOUSING TUBE MUST BE TIED INTO THESTRUCTURAL SUPPORT OF THE CRANE
20. 72060030 CAP SCR 5/16-18X2-1/4 HHGR5 121. 72062109 NUT 5/16-18 LOCK 122. 72532358 ADAPTER #8MSTR #8MJIC 123. 72532365 ADAPTER #10MSTR #12MJIC 125. 72532722 ADAPTER #10MSTR #6FSTR 628. 72532700 ELBOW #6MSTR #6MJIC XLG 90° 329. 72532707 ADAPTER #4MJIC #6FJIC 330. 70392864 DECAL-DANGER STD CLR 231. 70392867 DECAL-DANGER OR. MOVING 133. 72060102 CAP SCR 1/2-13X5-1/2 HHGR5 134. 72062080 NUT 1/2-13 LOCK 135. 3B142860 PWR OUT CYLINDER 136. 52706424 PIN 137. 72532690 ELBOW #4FJIC #4MJIC 238. 72532351 ADAPTER #4MSTR #4MJIC 239. 71392277 DECAL-PWR OUT 140. 71392257 DECAL-PWR DN 141. 70142648 LEVER PIVOT (PART OF 49) 3REF42. 70142650 LEVER SUPPORT (PART OF 49) 3REF43. 70142651 CONTROL LEVER (PART OF 49) 3REF44. 71392269 KNOB (PART OF 49) 3REF45. 72062021 NUT 5/16-18 HEX (PART OF 49) 3REF46. 72062024 NUT 1/2-13 HEX (PART OF 49) 3REF47. 72066162 COTTER PIN (PART OF 49) 6REF48. 72661204 CLEVIS PIN (PART OF 49) 6REF49. 51731580 HANDLE ASM
(INCL:41-48,PART OF 5) 3REF
00003016: 3-403B288970.01.1998031698
CYLINDER-PWR DN (3B288970)ITEM PART NO. DESCRIPTION QTY
1. 4B288970 CASE ASM 1 2. 4G048870 ROD ASM 1 4. 73054681 VALVE 1 6. 6H350025 HEAD 1 7. 6I035125 PISTON 1 8. 7Q072338 O-RING (PART OF 17) 1REF 9. 7Q10P338 BACK-UP RING (PART OF 17) 1REF10. 7T2N8027 WEAR RING (PART OF 17) 1REF11. 7R546025 ROD SEAL (PART OF 17) 1REF12. 7R14P025 ROD WIPER (PART OF 17) 1REF13. 7T65I035 PISTON RING (PART OF 17) 2REF14. 7T61N125 LOCK RING SEAL (PART OF 17) 1REF15. 7T66P035 PISTON SEAL (PART OF 17) 1REF16. 6A025025 WAFER LOCK (PART OF 17) 1REF17. 9C142020 SEAL KIT (INCL:8-16,19) 118. 6C015025 STOP TUBE 119. 7Q072151 O-RING (PART OF 17) 1REF21. 5P288970 PORT TUBE 122. 72053763 ELBOW #8MSTR #8MJIC 90° 2
NOTEIT IS RECOMMENDED THAT ALL COMPONENTSOF THE SEAL KIT BE REPLACED WHENEVER THECYLINDER IS DISASSEMBLED. THIS WILLREDUCE FUTURE DOWNTIME.
APPLY “LUBRIPLATE #630-2” MEDIUMHEAVY,MULTI-PURPOSE LUBRICANT OREQUIVALENT TO ALL PISTON AND HEAD GLANDS,LOCK RING AND ROD THREADS BEFOREASSEMBLY.
USE “NEVER-SEEZ” OR EQUIVALENT BETWEENTHE HEAD AND THE CASE WHEN ASSEMBLINGTHE CYLINDER.
00003016: 3-413B142860.01.19960430
CYLINDER-PWR OUT (3B142860)ITEM PART NO. DESCRIPTION QTY
1. 7Q072021 O-RING (PART OF 13) 1REF 2. 7T66P012 PISTON SEAL (PART OF 13) 1REF 3. 6I012050 PISTON 1 4. 7Q072214 O-RING (PART OF 13) 1REF 5. 7Q10P214 BACK-UP RING (PART OF 13) 1REF 6. 7R100750 ROD SEAL (PART OF 13) 1REF 7. 6C125007 STOP TUBE 1 8. 4G142860 ROD ASM 1 9. 4B142860 CASE ASM 110. 7R13P007 ROD WIPER (PART OF 13) 1REF11. 72066029 RETAINING RING 112. 6H012007 HEAD 113. 9B050608 SEAL KIT (INCL:1,2,4-6,10) 1
NOTEIT IS RECOMMENDED THAT ALL COMPONENTSOF THE SEAL KIT BE REPLACED WHENEVER THECYLINDER IS DISASSEMBLED. THIS WILLREDUCE FUTURE DOWNTIME.
APPLY “LUBRIPLATE #630-2” MEDIUMHEAVY,MULTI-PURPOSE LUBRICANT OREQUIVALENT TO ALL PISTON AND HEAD GLANDS,LOCK RING AND ROD THREADS BEFOREASSEMBLY.
USE “NEVER-SEEZ” OR EQUIVALENT BETWEENTHE HEAD AND THE CASE WHEN ASSEMBLINGTHE CYLINDER.
00003016: 3-4251705983.01.19960430
VALVEBANK ASM-2 SECT (51705983)ITEM PART NO. DESCRIPTION QTY
1. 94731764 TIE ROD KIT 3 2. 73054490 TANDEM VALVE SECTION 2 3. 7Q072017 O-RING SM 3 4. 7Q072018 O-RING MED 6 5. 7Q072021 O-RING LG 3 6. 73731576 END CAP - RH 1 7. 73731763 POWER BEYOND SLEEVE 1 8. 51731580 LEVER ASM (NOT SHOWN) 2
00003016: 3-4351705984.01.19960430
VALVEBANK ASM-3 SECT (51705984)ITEM PART NO. DESCRIPTION QTY
1. 51731580 LEVER ASM (NOT SHOWN) 3 2. 7Q072017 O-RING SM 4 3. 7Q072018 O-RING MED 8 4. 7Q072021 O-RING LG 4 5. 73054490 TANDEM VALVE SECTION 3 6. 73731576 END CAP - RH 1 7. 73731763 POWER BEYOND SLEEVE 1 8. 94731764 TIE ROD KIT 3 9. 73054488 END COVER LH 1
00003016: 3-4490713710.01.19970106
CONTROL KIT-RADIO REMOTE(90713710-1)
CONTINUED
00003016: 3-4590713710.02.19970106
CONTROL KIT-RADIO REMOTE(90713710-2)
CONTINUED
00003016: 3-4690713710.03.19990422
CONTROL KIT-RADIO REMOTE(90713710-3)ITEM PART NO. DESCRIPTION QTY
D 1 Labels All load charts, safety & warning labels, & control labels are present and legible.
D 2 Check all safety devices for proper operation.
D 3 Controls Control mechanisms for proper operation of all functions, leaks & cracks.
D 4 Station Control and operator’s station for dirt, contamination by lubricants, & foreign materials.
D 5 Hyd System Hydraulic system (hoses, tubes & fittings) for leakage & proper oil level.
D 6 Hook Presence & proper operation of hook safety latches.
D 7 Rope Proper reeving of wire rope on sheaves & winch drum.
D 8 Pins Proper engagement of all connecting pins & pin retaining devices.
D 9 General Overall observation of crane for damaged or missing parts, cracked welds & presence of safety covers.
D 10 Operation During operation, observe crane for abnormal performance, unusual wear
(loose pins, wire rope damage, etc.).
If observed, discontinue use & determine cause & severity of hazard.
D 11 Remote Ctrls Operate remote control devices to check for proper operation.
D 12 Electrical Operate all lights, alarms, etc. to check for proper operation.
D 13 Anti 2-Blocking Operate anti 2-blocking device to check for proper operation.
D 14 Other
D 15 Other
STATUS
FREQUENCY
✔ ,✘
R, NAINSPECTION DESCRIPTIONKEYITEM
✔ = SATISFACTORY✘ = DEFICIENCY
(must be corrected prior to operation)
R = RECOMMENDATION(should be considered for corrective action)
NA = NOT APPLICABLE
RE
V: 6
-18-
99NOTICE
The user of this form is responsible in determining that these
inspections satisfy all applicable regulatory requirements
4-4 SECTION 4. GENERAL REFERENCE19990618
M 16 Daily All daily inspection items.
M 17 Cylinders Visual inspection of cylinders for leakage at rod, fittings & welds. Damage to rod & case.M 18 Valves Holding valves for proper operation.
M 19 Valves Control valve for leaks at fittings & between sections.
M 20 Valves Control valve linkages for wear, smoothness of operation & tightness of fasteners.M 21 General Bent, broken or significantly rusted/corroded parts.
M 22 Electrical Electrical systems for presence of dirt, moisture & frayed wires.
M 23 Structure All structural members for damage.M 24 Welds All welds for breaks & cracks.
M 25 Pins All pins for proper installation & condition.
M 26 Hardware All bolts, fasteners & retaining rings for tightness, wear & corrosionM 27 Wear Pads Presence of wear pads.
M 28 Pump & Motor Hydraulic pumps & motors for leakage at fittings, seals & between sections.
M 29 PTO Transmission/PTO for leakage, abnormal vibration & noise.M 30 Hyd Fluid Quality of hydraulic fluid and for presence of water.
M 31 Hyd Lines Hoses & tubes for leakage, abrasion damage, blistering, cracking, deterioration, fitting leakage & secured properly.
M 32 Hook Load hook for abnormal throat distance, twist, wear & cracks.
M 33 Rope Condition of load line.M 34 Manual Presence of operator’s manuals with unit.
M 35 Other
Q 36 Daily All daily inspection items.Q 37 Monthly All monthly inspection items.
Q 38 Condition of wear pads
Q 39 Rotation Sys Rotation bearing for proper torque of all accessible mounting bolts.Q 40 Hardware Base mounting bolts for proper torque.
Q 41 Structure All structural members for deformation, cracks & corrosion.42 ● Base
Q 89 Winch Winch, sheaves & drums for damage, abnormal wear, abrasions & other irregularities.
Q 90 Hyd Filters Hydraulic filters for replacement per maintenance schedule.A 91 Daily All daily inspection items.
A 92 Monthly All monthly inspection items.A 93 Quarterly All quarterly inspection items.
A 94 Hyd Sys Hydraulic fluid change per maintenance schedule.
A 95 Controls Control valve calibration for correct pressures & relief valve settingsA 96 Valves Safety valve calibration for correct pressures & relief valve settings.
A 97 Valves Valves for failure to maintain correct settings.
A 98 Rotation Sys Rotation drive system for proper backlash clearance & abnormal wear, deformation & cracks.A 99 Lubrication Gear oil change in rotation drive system per maintenance schedule.
A 100 Hardware Check tightness of all fasteners and bolts.
A 101 Wear Pads Wear pads for excessive wear.A 102 Loadline Loadline for proper attachment to drum.
WIRE ROPE INSPECTIONWire rope with any of the deficiencies shown below shall beremoved and replaced immediately.
A. Corrosion can be cause for replacement. Anydevelopment of corrosion must be noted andmonitored closely.
B. When there are either 3 broken wires in one strandor a total of six broken wires in all strands in any onerope lay.
C. When flat spots on the outer wires appear and thoseoutside wires are less than 2/3 the thickness of theunworn outer wire.
D. When there is a decrease of diameter indicating acore failure.
E. When kinking, crushing, birdcaging or otherdistortion occurs.
F. When there is noticeable heat damage(discoloration) of the rope by any means.
G. When the diameter is reduced from nominal size by1/32" or more.
H. If a broken wire protrudes or loops out from the coreof the rope.
HOOK INSPECTIONHooks having any of the listed deficiencies shall beremoved from service unless a qualified person approvestheir continued use and initiates corrective action. Hooksapproved for continued use shall be subjected to periodicinspection.
A. DISTORTIONBending / TwistingA bend or twist exceeding 10° from the plane of theunbent hook.
Increased Throat OpeningHOOK WITHOUT LATCH: An increase in throatopening exceeding 15% (Or as recommended by themanufacturer)
HOOK WITH LATCH: An increase of the dimensionbetween a fully-opened latch and the tip section of thehook exceeding 8% (Or as recommended by themanufacturer)
B. WEARIf wear exceeds 10% of the original sectionaldimension. (Or as recommended by the manufacturer)
C. CRACKS, NICKS, GOUGESRepair of cracks, nicks, and gouges shall be carried outby a designated person by grinding longitudinally,following the contour of the hook, provided that nodimension is reduced more than 10% of its originalvalue. (Or as recommended by the manufacturer) (Aqualified person may authorize continued use if thereduced area is not critical.)
D. LATCHEngagement, Damage & MalfunctionIf a latch becomes inoperative because of wear ordeformation, and is required for the service involved, itshall be replaced or repaired before the hook is putback into service. If the latch fails to fully close thethroat opening, the hook shall be removed from serviceor “moused” until repairs are made.
E. HOOK ATTACHMENTS & SECURING MEANSIf any indication of distortion, wear, cracks, nicks orgouges are present, unless a qualified personauthorizes their use. (Or as recommended by themanufacturer)
19990519
4-8 SECTION 4. GENERAL REFERENCE
HOLDING VALVE INSPECTIONThe cylinders are equipped with holding valves that preventsudden movement of the cylinder rods in the event of ahydraulic hose or other hydraulic component failure. Thevalve is checked in the following manner:
1. With a full rated load, extend the cylinder in questionand kill the engine.
2. Operate the control valve to retract the cylinder. If thecylinder “creeps”, replace the holding valve. If thecylinder does not “creep”, the valve is serviceable.
ANTI-TWO BLOCKING DEVICE INSPECTION(See Vol. 1, Operation, Maintenance and Repair for acomplete description)The anti two block system should be checked daily asfollows:
1. Examine flexible rod and weight to insure freeunrestricted mechanical operation
2. Examine cord for damage, cuts or breaks. Grasp cordand pull to check operation of cord reel. The cord shouldretract on reel when released.
3. Start vehicle, engage PTO and slowly winch loadlineup until anti-two block weight comes in contact with thehook end of the loadline cable. At the moment the weightis fully supported, a marked difference in winch operationshould be noted. At this point, the winch up functionshould become very sluggish or non-functioning andhave very little pull capability. Slowly increase truckengine speed while simultaneously actuating the winchup function. The winch characteristics should remainsluggish with little or no tensioning of the cable. Ifoperation other than as described occurs, stopimmediately and investigate. Failure to do so will riskdamage to the cable or the crane.If all is well at this point,actuate the boom extend function slowly, and graduallyincrease to full actuation. Once again the function shouldbe sluggish or non-existent with no tightening of thewinch cable. If operation other than described occurs,stop immediately and reverse the function.
The final check involves actuating both the winch up andextend functions together and checking for properoperation of the anti two blocking circuit. Once again,start slowly and stop if it appears the cable is beingtensioned.
If the anti two block function appears to be functioningnormally, winch the cable down until the sensing weightswings free.
When using the torque data in the charts above, the following rulesshould be observed.
1. Bolt manufacturer’s particular specifications should beconsulted when provided.
2. Flat washers of equal strength must be used.
3. All torque measurements are given in foot-pounds. Toconvert to inch-pounds, multiply by 12.
4. Torque values specified are for bolts with residual oils or nospecial lubricants applied. If special lubricants of high stressability, such as Never-Seez compound graphite and oil,molybdenum disulphite, collodial copper or white lead areapplied, multiply the torque values in the charts by the factor .90.The use of Loctite does not affect the torque values listedabove.
5. Torque values for socket-head capscrews are the same asfor Grade 8 capscrews.
WARNINGAnytime a gear-bearing bolt is removed, it must be replaced with anew bolt of the identical grade and size. Once a bolt has beentorqued to 75% of its proof load and then removed, the torquecoefficient may no longer be the same as when the bolt was newthus giving indeterminate clamp loads after torquing. Failure toreplace gear-bearing bolts may result in bolt failure due to metalfatique causing serious injury or DEATH.
WARNINGAnytime a gear-bearing bolt is removed, it must be replaced with a new bolt of the identical grade and size. Once a bolthas been torqued to 75% of its proof load and then removed, the torque coefficient may no longer be the same as whenthe bolt was new thus giving indeterminate clamp loads after torquing. Failure to replace gear-bearing bolts may result inbolt failure due to metal fatique causing serious injury or DEATH.
WARNINGAnytime a gear-bearing bolt is removed, it must be replaced with a new bolt of the identical grade and size. Once a bolthas been torqued to 75% of its proof load and then removed, the torque coefficient may no longer be the same as whenthe bolt was new thus giving indeterminate clamp loads after torquing. Failure to replace gear-bearing bolts may result inbolt failure due to metal fatique causing serious injury or DEATH.