• 75-ton at 8 ft (2.44 m) radius • 202 ft (61.57 m) maximum tip height • 94,199 lbs (42 728 kg) gross vehicle weight (fully loaded) • 41 ft to 127 ft (12.50 m to 38.71 m) full power, four-section boom with quick reeve boom head • Optional 67 ft (20.42 m) two-piece (bi-fold) lattice fly, stowable, offsettable to 2°, 20° and 40° • Microguard 434 rated capacity limiter • Off-highway 225 hp (168 kW) Caterpillar engine • Spicer 6 speed power shift transmission • Pilot-operated hydraulic controls • 19.5 mph (31.4 km/hr) travel speed • 12 ft 7 in (3.84 m) wheel base RTC-8075 Rough Terrain Crane 75-ton (68.00 mt) www.linkbelt.com
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• 75-ton at 8 ft (2.44 m) radius• 202 ft (61.57 m) maximum tip height• 94,199 lbs (42 728 kg)
gross vehicle weight (fully loaded)• 41 ft to 127 ft (12.50 m to 38.71 m)
full power, four-section boomwith quick reeve boom head
• Optional 67 ft (20.42 m)two-piece (bi-fold) lattice fly,stowable, offsettable to2°, 20° and 40°
Operator cab features• Large front window for excellent visibility• Tinted glass• Sliding right side and rear windows and
swing-up top window provide excellentventilation
• Integral rated capacity limiter aids theoperator in safe and efficient operation bycontinuously monitoring boom length, boomangle, head height, radius of load, machineconfiguration, allowed load and percent ofallowed load.
Powerful hydraulics• For greater productivity and control, the six-
pump hydraulic circuit allowssimultaneous function of boom hoist, winchand swing.
• Piston motor hydraulic hoist system deliverssuperior hoisting. Matched sizesof main and auxiliary winches provide equalmaximum available line pulls of 16,506 lbs(7 487 kg) and maximum line speeds of 454fpm (138 m/min) on 16" (.41 m) root diam-eter drums.
Job site maneuverability• Steering modes are chosen and performed
with the steering wheel and include inde-pendent front steer, four wheel steer, and"crab" steering.
• CALC — Outrigger beams have three liftingstages (retracted, intermediate and fullyextended) providing lifting capacities inconfined areas.
Invest in a legacyof outstandingcustomer support• Distributor support
personnel - Factory-trained technicians arespecifically tested toestablish proficiency inall aspects of cranediagnostics and repair.
• Factory product supportteam - Supporting yourtrained distributor per-sonnel are experiencedfactory advisors withcomprehensive records and technicallibraries that stand ready to resolve anycrane service issue.
• Parts Distribution Center - 72,000 sq. ft.Parts Distribution Center averages an over-90% parts availability rate.
• eParts - Link-Belt’s online computer systemlinks our distributors worldwide so cus-tomers can order genuine Link-Belt parts 24hours a day, 7 days a week.
• Link-Belt Preferred - Link-Belt’s customerweb site provides instant access to a com-prehensive library of all parts, service andoperator manuals plus other technical andsales information.
RTC-8075 Rough Terrain Crane
Superiorperformance,control andreliability
The RTC-8075 isjam-packed with power,control & reliability !• Caterpillar 3126B electronic engine
with 225 hp (168 kW) provides 646 lb-ft(876 Nm) of torque
• Remote-mounted, thermostaticallycontrolled oil cooler provides maximumtransmission cooling under the mostextreme job site conditions
• Electronic throttle for improved throttleresponse
• Three automotive-style batteries linked inparallel and provide 700 cold cranking ampsfor cold weather starting
• Rugged, lightweight steel pontoons• Hydraulic disc brakes for both service
brakes and parking brake• Metri-Pak wire harnesses have sealed
relays and connectors throughout foroutstanding long-term reliability. All wireshave flame retardant polyethylene insulation,resulting in a higher heat resistant wiringsystem.
4-section full power boomwith attachment flexibility• Full power 41 ft to 127 ft (12.50 m to
38.71 m) four-section boom with twoextend modes: A-max and fullysynchronized
• Features the "Boss,"Link-Belt’s patentedboom design of highstrength angle cords andhigh formability sidewallembossments.
• Maximum tip height is 202 ft (61.57 m)with the attachment and main boom usedin combination
• Optional 39 ft 6 in (12.04 m) one-piecelattice fly and optional 39 ft 6 in to 67 ft(12.04 m to 20.42 m) two-piece bi-foldlattice fly are offsettable to 2°, 20° and 40°.
® Link-Belt is a registered trademark. Copyright 2004.All rights reserved. We are constantly improving ourproducts and therefore reserve the right to changedesigns and specifications.Litho in U.S.A. 12/04 #4289
Engine hood design
provides easy access
for maintenance.
Transmission
oil is cooled
by a thermo-
statically-
controlled
oil cooler
to provide
maximum
cooling under
the most
extreme job
conditions.
Fast & efficient hydraulic counterweight
removal enhances roadability
A-max extends only the inner-mid section of the boom for substantially
increased capacities for in-close, maximum capacity lifts.
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Technical DataSpecifications & Capacities
Telescopic Boom Rough Terrain Crane75 ton (68.0 metric ton)
CAUTION: This material is supplied forreference use only. Operator must refer toin---cab Crane RatingManual andOperator’sManual to determine allowable crane liftingcapacities and assembly and operatingprocedures.
Boom, Attachments, and Upper StructureJ BoomDesign --- Four section, box type construction of high ten-sile steel consisting of one base section and three tele-scoping sections. The vertical side plates have diamondshaped steel impressions for superior strength to weightration. The first telescoping section extends independentlyby means of one double---acting, single stage hydrauliccylinder with integrated holding valves. The second andthird telescoping sections extend proportionally by meansof one double---acting, single stage cylinder with integratedholding valves and cables.BoomS 41---127 ft (12.5 ---38.7m) four section full power boomS Two mode boom extension: A---max mode provides su-perior capacities by extending the first telescoping sec-tion to 69.6 ft (21.2m). Standard mode synchronizes allthe telescoping sections proportionally to 127 ft (38.7m).Controlled from the operator’s cab.
S Mechanical boom angle indicatorS Maximum tip height for A---max mode is 80 ft (24.3m) andstandard mode is 136 ft (41.4m).Boom HeadS Five 16.5 in (41.9cm) root diameter nylon sheaves to han-dle up to ten parts of line
S Easily removable wire rope guardsS Rope dead end lugs on each side of the boom headS Boom head is designed for quick---reeve of the hookblockBoom ElevationS One double acting hydraulic cylinder with integral hold-ing valve
S Boom elevation: ---3˚ to 78˚Auxiliary Lifting Sheave --- OptionalS Single 16.5 in (41.9m) root diameter nylon sheaveS Easily removable wire rope guardsS Does not affect erection of the fly or use of the main headsheavesHook Blocks and Balls --- OptionalS 40 ton (36.3mt) 4 sheave quick---reeve hook block withsafety latch
S 60 ton (54.4mt) 4 sheave quick---reeve hook block withsafety latch
S 75 ton (68.0mt) 5 sheave quick---reeve hook block withsafety latch
S 8.5 ton (7.7mt) swivel and non---swivel hook balls withsafety latchFly --- OptionalS 39 ft 6 in (12.0m) one piece lattice fly, stowable, offset-table to 2˚, 20˚, and 40˚. Maximum tip height is 174 ft(53.0m).
S 39 ft 6 in---67 ft (12.0 ---20.4m) two piece bi---fold lattice fly,stowable, offsettable to 2˚, 20˚, and 40˚. Maximum tipheight is 202 ft (61.6m).
J Operator’s Cab and ControlsEnvironmental Cab --- Fully enclosed, one person cab ofgalvaneal steel structure with acoustical insulationEquipped with:S Tinted and tempered glass windowsS Extra---large fixed front window with windshield wiper andwasher
S Swing up roof window with windshield wiperS Sliding left side door with large fixed windowS Sliding rear and right side windows for ventilationS Six way adjustable, cushioned seat with seat belt andstorage compartment
S Engine dependent warm---water heater with air ducts forfront windshield defroster and cab floor
S Defroster fan for the front windowS Bubble levelS Circulating fanS Adjustable sun visorS Dome lightS Cup holderS Fire extinguisherS Left side viewing mirrorS Two position travel swing lockAir Conditioning --- Optional --- Integral with cab heatingsystem utilizing the same ventilation outletsSteering Column --- Pedestal type with tilt and telescopefunctions for operator comfort. Column includes the follow-ing controls and indicators:Left and right levers include:S Horn buttonS Turn signal switchS Driving light switchS Transmission direction switchPanel mounted switches for:S Travel park brakeS Steer mode selectorS 2/4 wheel drive/range selectorS Transmission gear selectorS Hazard flasherPanel mounted indicator/warning lights for:S Transmission temperatureS Engine oil pressureS Travel park brakeS Service brakeS Turn signalsS Rear wheel offset---optionalS Emergency steer --- optional
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Armrest Controls --- Two dual axis hydraulic joystick con-trollers or optional single axis hydraulic controllers for:S SwingS Boom hoistS Main rear winchS Auxiliary front winch --- optionalS Drum rotation indicationS Drum rotation indicator activation switchS Winch high/low speed and disable switch(es)S Third wrap selector switch --- optionalS Telescopic override switchesS Warning horn buttonS Swing park brakeOutrigger Controls --- Hand held control box with umbilicalcord gives the operator the freedom to view operation whilesetting the outriggers.Foot ControlsS Boom telescopeS Swing brakeS Engine throttleS Service brakeRight Front Console --- Controls and indicators for:S Engine ignition S Console dimmer switchS Engine throttle lock S Bubble levelS Function disable S 12 volt power connectionS Front windshield wiper S Air conditioning --- optionaland washer S Boom floodlight --- optional
S Cab floodlights S Rotating beacon/StrobeS Warning horn light --- optionalS Heating controls S Third wrap indicator ---
optionalCab Instrumentation --- Ergonomically positioned, analoginstrumentation for crane operation including:S Engine coolant temperature with warning indicatorS Hydraulic oil temperature with warning indicatorS Fuel level with warning indicatorS TachometerS Transmission temperature with warning indicatorS Voltmeter with warning indicator
Rated Capacity Limiter --- Microguard graphic audio---visual warning system integrated into the dash with anti ---two block and function limiter. Operating data availableincludes:S Crane configurationS Boom length and angleS Boom head heightS Allowed load and % of allowed loadS Boom angleS Radius of loadS Actual loadS Operator settable alarms (include):S Maximum and minimum boom anglesS Maximum tip heightS Maximum boom lengthS Swing left/right positionsS Operator defined area (imaginary plane)Internal RCL Light Bar --- Optional --- Visually informs theoperator when crane is approaching maximum load capac-ity with a series of green, yellow, and red lights.External RCL Light Bar --- Optional --- Visually informs theground crew when crane is approaching maximum loadcapacity with a series of green, yellow, and red lights.
J SwingMotor/Planetary --- Bi ---directional hydraulic swing motormounted to a planetary reducer for 360˚ continuoussmooth swing at 2.1 rpm.Swing Park Brake --- 360˚, electric over hydraulic, (springapplied/hydraulic released) multi ---disc brake mounted onthe speed reducer. Operated by a toggle switch from theoperator’s cab.Swing Brake --- 360˚, foot operated, hydraulic applied discbrake mounted to the speed reducer.Swing Lock --- Two---position swing lock (boom over frontor rear) operated from the operator’s cab.360˚ Positive Swing Lock --- Optional --- Meets New YorkCity requirement.
J ElectricalSwing Alarm --- Audio warning device signals when theupper is swinging.LightsS Two working lights on front of the cabS One rotating amber beacon on top of the cab --- optionalS One amber strobe beacon on top of the cab --- optionalS Boom floodlight --- optional
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J Load Hoist SystemLoad Hoist Performance
Main (Rear) and Auxiliary (Front) Winches --- 3/4 in (19mm) RopeMaximum Line Pull Normal Line Speed High Line Speed Layer Total
Standard 3/4 19 18x19 rotation resistant --- right regular lay (Type RB) 12,920 5 860.5Optional 3/4 19 36x7 rotation resistant --- right regular lay (Type ZB) 15,600 7 076.2
Auxiliary (Front)Winch
Standard 3/4 19 18x19 rotation resistant --- right regular lay (Type RB) 12,920 5 860.5Optional 3/4 19 36x7 rotation resistant --- right regular lay (Type ZB) 15,600 7 076.2
2M Main and Optional Auxiliary WinchesS Axial piston, full and half displacement (2---speed) motorsdriven through planetary reduction unit for positive con-trol under all load conditions.
S Combined winch mode merges the hydraulic flow of twopumps for high---speed operation for either the main orauxiliary winch.
S Grooved laggingS Power up/down mode of operationS Hoist drum cable followerS Drum rotation indicatorS Drum diameter: 16 in (40.6cm)S Rope length:S Main: 670 ft (204.2m)S Auxiliary: 670 ft (204.2m)
S Maximum rope storage: 834 ft (254.2m)S Terminator style socket and wedgeThird wrap indicator --- optional --- Visually and audiblywarns the operator when the wire rope is on the bottomlayer and when the wire rope is down to the last threewraps.
J Hydraulic SystemCounterbalance Valves --- All hoist motors, boom extendcylinders, and boom hoist cylinders are equipped withcounterbalance valves to provide load lowering and pre-vents accidental load drop when hydraulic power is sud-denly reduced.
J CounterweightStandard --- Total of 15,000 lb (6 803.9kg) of total counter-weight consisting of one, removable 15,000 lb (6 803.9kg)counterweight with capacities for 0 lb (0kg) and 15,000 lb(6 803.9kg) counterweight configurations.Optional --- Hydraulic counterweight removal controlledfrom the left side of the upper structure.
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CarrierJ GeneralS 10 ft 10.5 in (3.31m) wideS 12 ft 7 in (3.83m) wheelbase (centerline of first axle tocenterline of second axle).Frame --- Box---type, torsion resistant, welded constructionmade of high tensile steel. Equipped with front and reartowing and tie---down lugs, tow connections, and accessladders.
J OutriggersBoxes --- Two double box, front and rear welded to carrierframe.Beams and Jacks --- Four single stage beams with Con-fined Area Lifting Capacities (CALCt) provide selectableoutrigger extensions of full, intermediate, and retracted.Hydraulically controlled from the operator’s cab with inte-gral check valves.Pontoons --- Four lightweight, quick release, 23.50 x 27.25in (59.69 x 69.22cm), hexagonal steel pontoons with con-tact area of 485 in2 (3 129cm2) can be stored for road travelin storage racks on the carrier.Main Jack Reaction --- 94,800 lb (43 000.6kg) force and196 psi (1 351.4kPa) ground bearing pressure.
J Steering and AxlesSteering --- Three independent modes consisting of twowheel front, four wheel, and crab. Each mode is controlledfrom the steering wheel and is selected by a switch in theoperator’s cab.Drive --- Two modes: 4 x 2 and 4 x 4 for off highway travelAxle 1 --- Steered, non---driven for 4 x 2 and steered, drivenfor 4 x 4Axle 2 --- Steered, driven
J SuspensionFront --- Rigid mount to the carrier frameRear --- Center pin mount that pivots within bronze bush-ings. Two hydraulic oscillation cylinders lockout when theupper structure rotates 2.5˚ past centerline.
J Tires and WheelsFront and Rear --- Four (single) 29.5 x 25---28 ply rating,earthmover type tires on steel disc wheelsS Spare tires and wheels --- optional
J BrakesService --- Full hydraulic, dual circuit, disc type brakes onall wheel endsParking/Emergency --- Spring loaded type, acting on frontaxle
J ElectricalThree batteries provide 12 volt operation and startingLightsS Front lighting includes two main headlights, and twoparking/directional indicators.
S Side lighting includes two parking/directional indicatorsper side.
S Rear lighting includes two parking/directional indicators,two parking/brake lights, and two reversing lights.
S Other equipment includes hazard/warning system, cablight, instrument panel light, and signal horn.
J EngineSpecification CAT 3126B
Numbers of Cylinders 6
Cycle 4
Bore and Stroke: inch (mm) 4.33 x 5.00 (110 x 127)
Piston Displacement: in3 (L) 442 (7.2)
Max. Brake Horsepower: hp (kW) 225 (167.8) @ 2,200 rpm
Peak Torque: ft lb (J) 646 (876) @ 1,500 rpm
Alternator: volts --- amps 12 --- 130
Crankcase Capacity: qt (L) 30 (28.4)
S Mechanically driven fan and thermostatically controlled radiator
J TransmissionPowershift --- Three speed with high/low range for 6 for-ward and 6 reverse gears. Transmission oil cooler isequipped with a thermostatically controlled electric fan.
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RTC---8075Link-Belt Cranes
J Carrier Speeds and Gradeability
Spicer Speed
Gradeability(@ 70%Convertorefficiency)
Gear Ratio mph km/h % Grade
3rdHighRange
0.820 24.2 38.9 2.5
2nd 2.250 8.8 14.2 10.5
1st 4.673 4.3 6.9 24.5
3rdLowRange
2.400 8.3 13.4 11.3
2nd 6.540 3.0 4.8 36.3
1st 13.599 1.5 2.4 107.3
Based on a gross vehicle weight of 102,000 lb (46 266.4kg).
Crane operating angle must not exceed 35˚ (77% grade).
J Fuel TankOne 95 gallon (359.6L) capacity tank
J Hydraulic SystemAll functions are hydraulically powered allowing positiveprecise, control with independent or simultaneous opera-tion of all functions.Main PumpsS Four fixed displacement gear pumps for the main andauxiliary winches, swing, boom hoist, and telescope cir-cuits with a manual disconnect to aid during cold weath-er starts.
S One gear pump for the outriggers, power steering, andtelescope circuits.
S One pressure compensated piston pump is used in thecontrol, service brake, and counterweight removal cir-cuits.
S Combined pump capacity of 167.3 gpm (633.3Lpm).Hydraulic Reservoir --- 160 gal (605.7L) capacity equippedwith sight level gauge. Diffusers built in for deaeration.Filtration --- One 10 micron, full flow, line filter in the controlcircuit. All oil is filtered prior to return to sump tank. Acces-sible for easy filter replacement.
J Pump DriveAll pumps are mechanically driven by the diesel engine.Main and auxiliary winches, swing, boom hoist, and tele-scope pumps are mounted to a mechanical pump discon-nect on the transmission torque convertor to aid in coldweather starting.
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RTC---8075 Link-Belt Cranes
Axle Loads
Base crane with full tank of fueland 15,000 lb (6 803.9kg)counterweight
Gross VehicleWeight (1)
Upper Facing Front Upper Facing RearFront Axles Rear Axles Front Axles Rear Axles
lb kg lb kg lb kg lb kg lb kg94,449 42 841 44,068 19 989 50,381 22 852 40,232 18 249 54,217 24 592
70 ton (63.5mt) 5---sheave hookblock at front bumper 1,390 631 2,186 992 ---796 ---361 --- --- --- --- --- --- --- --- --- --- --- ---
60 ton (54.4mt) 4---sheave hookblock at front bumper 1,150 522 1,809 821 ---659 ---299 --- --- --- --- --- --- --- --- --- --- --- ---
Tire Maximum Load @ 20 mph (32.2km/h)
29.5 x 25 (28---PR) 53,000 lb (24 041kg)
29.5R25 XHA 1 Star 53,000 lb (24 041kg)
(1) Adjust gross vehicle weight and axle loading according to component weight.Note: All weights are ±3%.
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RTC---8075Link-Belt Cranes
General Dimensions
20_ C
Not To Scale
C
3’ 3”(0.99m)
FE
C of RotationL41’ 0” (12.50m)
7’ 0”(2.13m)
23.8_
10.9_11’ 9” (3.58m) 11’ 6” (3.51m)
27’ 3.5” (8.32m)
4’ 10”(1.47m)
8’ 2.5” (2.50m)Centerline of tires
10’ 10.5”(3.31m)
A
B
9’ 5.5”(2.88m)
3’ 9”(1.14m)
7.25”(0.18m)
G
48’ 9.5” (14.90m)
D
Full Extension23’ 0” (7.01m)
Full Retraction10’ 0.75” (3.07m)
Intermediate Extension16’ 4.75” (5.00m)
Turning Radius --- Front Wheel (4x2) Steering English MetricWall to wall over carrier 49’ 10” 15.2mWall to wall over boom 58’ 3” 17.7mWall to wall over boom attachment 60’ 2” 18.3mCurb to curb 48’ 3” 14.7mCenterline of tire 46’ 10” 14.3m
Turning Radius --- All Wheel (4x4) Steering English MetricWall to wall over carrier 27’ 5” 8.4mWall to wall over boom 39’ 6” 12.1mWall to wall over boom attachment 41’ 0” 12.5mCurb to curb 25’ 4” 7.7mCenterline of tire 23’ 10” 7.3m
* Special Conditions Or Wire Rope Required** 69.6 A---max Mode
This information is not for crane operation. Operator must refer to the in---cab information for crane operation. Rated lifting capacities shown onfully extended outriggers do not exceed 85% of the tipping loads and on tires do not exceed 75% of the tipping loads.