specalog for 772 off-highway truck, aehq5724-03

®®

EngineEngine Model Cat® C18 ACERT™Gross Power – SAE J1995 446 kW 598 hpNet Power – SAE J1349 399 kW 535 hp

Weights – ApproximateTarget Gross Machine 82 100 kg 181,000 lbOperating Weight

Operating SpecificationsNominal Payload Class (100%) 46 tonnes 51 tonsMaximum Working Payload (110%) 51 tonnes 56 tonsNot to Exceed Payload* (120%) 55 tonnes 61 tonsBody Capacity – SAE 2:1 31.3 m3 41 yd3

• Nominal payload and capacity based on Quarry Body.Liner and attachment selection will affect payload andmaximum gross machine operating weight.

* Refer to Caterpillar® 10/10/20 Payload Policy formaximum gross machine weight limitations.

772Off-Highway Truck

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772 Off-Highway TruckEngineered for performance, designed for comfort, built to last.

Top Performance.Developed specifically for construction,mining, and quarry applications, the 772optimizes demands for lower cost per ton,challenges of finding skilled labor, andoverall health and safety.

Reliable, Durable, Dependable.Rugged construction and easy maintenanceprocedures ensure long life with lowoperating costs.

Truck Body Systems

The 772 offers two body types with sixdifferent body liner system selectionsto accommodate almost any type ofapplication. These body liner systemsare designed to maximize strength anddurability while providing the lowestcost per ton. In addition, Caterpillar hasadded a new quarry body with a 25 mm(0.98 in) floor. pg. 16

Serviceability

The 772 offers 500-hour engine serviceintervals – 250 hours more than the 771D.Simplified service and maintenancefeatures combined with improvedservice access are designed toreduce downtime. pg. 14

Structures

The 772 features a mild-steel, box-section type frame to deliver durabilityand long life with low operating costs.Castings and forgings are strategicallyplaced in high-stress areas to evenlydistribute stresses and provide longfatigue life. pg. 8

Power Train – Transmission

The Cat® seven-speed power shifttransmission matched with the Cat C18engine with ACERT Technology providesconstant power and efficiency over awide operating speed range for optimalpower train performance. pg. 6

Power Train – Engine

The Cat® C18 engine with ACERT™Technology uses advanced enginetechnology to reduce emissions withoutafter-treatment. The turbocharged,aftercooled 6-cylinder engine has fasterresponse for superior performance indemanding applications. pg. 4

Information and Monitoring Systems

Standard on the 772, the Cat Messengersystem provides real-time engineperformance and operating data. pg. 18

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Safety

Caterpillar sets the standard whenit comes to safety in the design andmanufacturing of heavy equipment.Safety is not an afterthought atCaterpillar, but an integral part ofall machine and systems designs. pg. 20

Operator’s Station

The 772 features an all new operatorstation with enhanced visibility, increasedoperator space and ergonomicallydesigned controls that set new industrystandards for operator comfort.All controls and gauges are positionedfor optimum efficiency and totalmachine control. pg. 9

Brake System

Front dry disc and rear oil-cooled,multiple disc brakes are now hydraulicallycontrolled, reducing maintenance costsand improving operator control andmodulation. They provide exceptional,fade-resistant braking and retarding formaximum performance and productivityin all haul-road conditions. pg. 12

Engine – Power Train Integration

The Cat Data Link electronicallycombines engine, transmission,brake and operational information tooptimize overall truck performance.Stored diagnostic data can be accessed viathe Cat Electronic Technician (Cat ET)service tool to improve troubleshootingand reduce downtime. pg. 10

Customer Support

Cat dealers provide unmatchedproduct support, anywhere in the world.With industry-best parts availability anda wide range of maintenance and serviceoptions, Cat dealers have what it takesto keep your hauling machinesproductive. pg. 21

Cat® C18 Engine with ACERT™Technology. Caterpillar optimizes engineperformance while meeting U.S. EPATier 3 and European Union Stage IIIaengine emission regulations. ACERT™Technology reduces emissions during thecombustion process by using advancedtechnology in the air and fuel systems, inconjunction with integrated electronics.Caterpillar meets emission regulationsat the combustion source, rather thanrecycling exhaust gases.

Block. The C18 block incorporates a one-piece, grey iron block, featuring generousribbing for stiffness and heavy bearingbulkheads for rigidity and strength.

Caterpillar also has moved away frompipe thread ports to straight-thread, o-ring connection points, reducing thepotential for leaks. This new designsupports the engine’s higher compressionratios and increased power density.

Cylinder Head. The new cross flow airdesign routes air straight across the headremoving bends and turns that createresistance to flow. By removing theresistance to flow, parasitic loads arereduced as pumping needs are lessened.The cylinder head is a one piece, castiron component with a newly designedgraphite and steel composite head gasketthat seals the combustion chamber withbetter rigidity and wear capability.

Overhead Cam. A single overheadcam is driven by gears on the front ofthe engine, which significantly reducenoise and vibration. Caterpillar also hasadded two pendulum absorbers, mountedat the front of the camshafts to furtherreduce noise and vibration.

Pistons, Connecting Rods, Cylinder Liners.New design and material improvementsto the pistons, rods and liners have beenmade to support the higher cylinderpressures and the 16.3:1 compressionratios associated with ACERTTechnology, while still providingdurability to engine overhaul.

A single-piece steel piston, pulsator-testedto 25 560 kPa (4,000 psi), is matched toa robust connecting rod to ensure longcomponent life. The piston’s steel skirtincreases its durability and results inreduced thermal expansion, allowinga tighter piston fit and reduced linervibration. The overall piston surfacearea reduces friction and enhancesfuel economy.

The newly designed connecting rodallows better lubrication and coolingand is more securely fastened to thecrankshaft using two additional bolts.The new improved rod bearings are madeof steel-backed copper alloy with leadtin overlay. This new metallurgy reducesflaking and offers better fatigue strength.

Cylinder liners are wet liners made ofcompacted graphite and iron for excellentwear and strength characteristics.Also, the tolerances between the pistonsand the wet cylinder liners have beentightened to unprecedented levels forreduced blow-by and higher efficiency.

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The Cat® C18 engine with ACERT™ Technology is built for power, reliability and efficiencyfor superior performance in the toughest applications.

Power Train – Engine

Turbochargers. The single, waste-gatedturbocharger found on the C18 engine iswater-cooled to accommodate suddenhot machine shutdowns. Water cools thebearings during this event, preventingbearing seizure. The C18 engine alsoincludes a new turbine housing and anadditional spacer bearing. The additionof a spacer bearing eliminates snap ringsand, therefore, reduces complexity andimproves shaft motion.

The turbocharger for the 772 features atitanium compression wheel. The titaniumcompression wheel is used to withstandthe higher compression wheel speeds thatare required, especially in high altitudeapplications. The titanium wheel canwithstand these high-spin conditionswith much better wear characteristics.

Changes enable the C18 to deliverlonger life and lower maintenance costs,and contribute to good fuel economy.The design also provides high horsepowerwith improved response time whilekeeping exhaust temperatures low forlong hours of continuous operation.The waste-gate turbocharger designimproves engine response and peaktorque, while providing higher boostover a wider range.

MEUI Fuel System. The Cat MEUIfuel system combines the technicaladvancement of electronic control withthe simplicity of direct mechanicallycontrolled unit fuel injection. This systemelectronically controls injection pressureby sensing the engine speed and loadconditions over the entire engineoperating speed range.

A low-pressure fuel transfer pumpprovides fuel to the injectors, whichthen increases the pressure to deliververy fine, atomized fuel particles intothe combustion chamber with precisetiming and duration. The result is amore complete fuel burn with loweremissions and better engine response.

Oil Coolers. The 772 is equipped withthree oil coolers: an engine-mountedengine oil cooler, an engine-mountedtransmission/torque converter oil cooler,and a remote-mounted, brake, hoist andhydraulic fan oil cooler. These coolersallow major components to expel heat,maintaining optimal operatingtemperatures.

Fuel Filters. The C18 engine is equippedwith two fuel filters. The primary filter isengine-mounted and features oil/waterseparation and an electric priming pump.The electric pump provides easier primingand better contamination control than amanual unit. The secondary fuel filter isalso engine-mounted, and has a switchthat monitors pressure changes andprovides pressure drop warnings tothe operator.

Advanced Diesel Engine ManagementA4 Engine Controller. The ADEM™ A4electronic control module providesflexible fuel mapping, allowing theengine to respond quickly to varyingapplication needs.

Next Generation Modular Radiator(NGMR). The new modular coolingsystem with a single-pass flow coredesign uses brazed construction forstronger joints, better leak preventionand higher heat transfer. The simplerdesign of the single-pass system, whichreplaces the two-pass flow folded coresystem enables coolant to enter one endof the core and flow out the oppositeend for more efficient ambient coolingcapability and greater durability.

Hydraulic Demand Fan and AccessoryDrive. The 772 includes a standard,variable-speed, on-demand fan. This fanprovides cooling airflow only whennecessary, resulting in reduced parasiticlosses, a reduction of fuel consumptionand fan-generated noise.

The C18 engine includes a Poly-Vaccessory drive belt with an auto-tensioner, which is self adjusting.

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Mechanical Power Train. The Catmechanical drive power train and powershift transmission provides unmatchedoperating efficiency and control on steepgrades, in poor underfoot conditions, andon haul roads with high rolling resistance.

Transmission. Pairing the Caterpillarseven-speed planetary power shifttransmission with the C18 diesel enginewith ACERT Technology deliversconstant power over a wide rangeof operating speeds.

• Transmission Chassis Control (TCC).Transmission shifting is based onTransmission Output Speed for optimumperformance efficiency and clutch life.The TCC provides integratedfunctionality to controlled throttleshifting, directional shift management,neutral coast inhibitor, body-up shiftlimiter and body-up reverse neutralizer.

Throttle Lock. The operator can nowelectronically lock the throttle pedal atfull throttle, to reduce fatigue on longuphill hauls. The throttle can be lockedon by momentarily depressing the throttlelock switch located on the operatorconsole, while depressing the pedalfully. The throttle is released wheneverbraking is applied or the throttle is againdepressed.

Lock-Up Torque Converter.Combines maximum rimpull andcushioned shifting of torque converterdrive with the efficiency and performanceof direct drive. The torque converterincludes an additional clutch plate tomaintain power train capability forhigher horsepower and top speed, aswell as a new torque converter adapterthat provides extra length to house theadditional clutch plate and enables theconverter components to be changedwithout having to change the housing.The lock-up torque converter engagesat approximately 8 km/h (5 mph),delivering more power to the wheels.

Lock-Up Clutch. Quickly releases andre-engages to reduce power train torqueloads for smoother shifting, long lifeand a more comfortable ride.

New Differential and Proven FinalDrives. The new Cat differential workswith the proven final drives as a systemto deliver maximum power to the ground.For improved serviceability, the piniongear is cantilever mounted, which allowsinspection of the differential withoutpulling the rear-end. Visual inspectionof the pinion gear and bearings can beperformed in 1-2 hours versus 8 hourson the previous models. In addition,the differential bevel pinion gear setis designed for improved adjustability,which results in improved contact patternsand life. The differential gear set alsoprovides enhanced bending life forsteeper grade applications.

New Differential Center Housing. A new,ductile iron center housing improvesquality and reliability. The improvedstiffness allows for better main supportbearing life. The new housing also usesbolts, reducing maintenance time.This change also improves wheelstation bolted-joint life.

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Cat power train delivers more power to the ground for greater productivity and loweroperating costs.

Power Train – Transmission

New A-Frame. The new A-frame mountsdirectly to the spindles. The new A-frameeliminates the “king” bolt and includes apin and bushing style mounting, consistentwith the 777 and 793. This new designis simpler to maintain and service.

New Ductile Iron Spindles. A stress-optimized, ductile iron spindle issplined to the rear brakes, reducingbrake pack rebuild time by up to twohours. In addition, the spindles arelonger and wider with fewer sealsfor increased strength and durability.

Brake Packs. A single-piece brake anchoreliminates more than 200 fasteners anda row of bolted joints. Rebuild time isreduced by up to two hours. In addition,the brake pack is removable withouttaking the spindle off the truck.

Each of the two oil-cooled disc brakeson the 772 rear axle features 30 discs.The brake discs have increased indiameter from 495.3 to 540.0 mm(19.5 to 21.3 in). By increasing thediameter, Caterpillar has improved theoverall reliability and durability of thebrake packs and has also designed thebrake packs to improve the OD/ID ratio.The new 772 brake pack design, movesthe braking forces to the outer edge ofthe disc, thereby using greater surfacearea for improved braking forces andlonger life, improving reliability andlowering maintenance cost.

Wheel Stations. The wheel stations nowintegrate both the wheel and the hub.The single-piece design reduces removaland installation time, and the risk ofbrake cooling oil leakage. The innerDuo-Cone™ seal has been changedfrom a formed type to a cast design.Brake cooling flow and the Duo-Coneseal has also been reversed for bettersealing performance and improvedseal life.

Wheel stations are now interchangeable,reducing the number of replacementparts: left and right wheel stations aresymmetric and can be interchanged.In addition, the new design eliminates oneo-ring seal, which improves reliabilityand simplifies the system and the wheelbearings have been enhanced for longerbearing life.

Tires. The 772 uses larger 21.00R33 tires.The larger tires increase the load carryingcapacity of the machine, which isneeded for the increased target payloadof 45 tonnes (50 tons). The new 772lowers the cost-per-ton by optimizingthe tire size to GVW ratio.

• Steering System. Hydraulic steeringcontrol system is designed forexceptional smoothness and precisecontrol. A separate circuit preventscross contamination for long life.

• Battery Powered SupplementalSteering. A battery poweredsupplemental steering system usespressure accumulators and allowsup to three 90 degree turns in caseof engine failure.

• Wheels and Rims. Cast rear wheels andCat center-mount rims are mounted usingstuds and nuts to minimize maintenanceand maximize durability.

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Box-Section Design. The 772 frame usesa box-section design, incorporating twoforgings and 13 castings in high-stressareas with deep penetrating andcontinuous wrap-around welds to resistdamage from twisting loads withoutadding extra weight.

• Steel Structures. Mild steel usedthroughout the frame provides flexibility,durability and resistance to impact loads,even in cold climates and allows for easyfield repairs.

• Castings. Castings have large radii withinternal reinforcing ribs to dissipatestress in areas of high stress concentration.Castings move welds to lower stressareas for greater frame life.

Integral Four-Post ROPS Cab.Resiliently mounted to the main framewith all-new cab mounts that reducevibration and sound, the integral ROPSis designed as an extension of the truckframe. The ROPS/FOPS structureprovides “five-sided protection”for the operator.

Forgings and Castings.

• The 772 features a drop tube/castingdesign and two forged steel mountingsfor hoist cylinders, similar to thedesign as found on the 775.

• A volcano casting that holds the centertube is enhanced with thicker walldimensions for increased durability.

• New strut-mount castings have beenmoved 254 mm (10 in) forward and25.4 mm (1 in) outward on each side.These thicker strut-mount castingsand their location improve ridecharacteristics as well as durability.

• New steering casting (same as 775)accommodates larger steeringcylinders and ball studs.

• New tail casting accommodates newangled rail design.

Superior Weld Quality. Structural framewelds are J-groove type, ensuring fullweld penetration for strength andlongevity. During fabrication, weldintegrity is further enhanced by rotatingthe frames 360 degrees to provideoptimal, flat welding surfaces.

Technology Enhanced.Caterpillar structures are tested usingSystem Structural Analysis (SSA) todynamically simulate operations in fieldenvironments and identify potentialstructural improvements in high stressareas. With analysis of machine structuresand variables, such as haul road andpayload, structural improvements weremade to the frame to accommodate thenew cab, platform, engine and radiator.

Quality Control. A Coordinate MeasuringMachine (CMM) is used to inspecttruck frames for consistency in themanufacturing process. In addition allcritical welds receive testing to verifyweld penetration which results in framedurability.

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Rugged Cat structures are the backbone of the 772 off-highway truck’s durability.

Structures

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All New Center-Mounted Cab. Center cabpositioning provides additional room andcreates a walk-in-style cab. The newconfiguration allows the operator toeasily enter and exit the cab. The cabenvironment offers a spacioussurrounding, giving the operator theability to stretch out and providingsuperior comfort for an entire operatingshift. The operator seat is located on theright hand side of the cab with thetrainer to the immediate left.

Ergonomic Layout. The 772 operator’sstation is ergonomically designed fortotal machine control in a comfortable,productive and safe environment.All controls, levers, switches and gaugesare positioned to maximize productivityand minimize operator fatigue.

New ISO Designed Cab Mounts.Integral, sound-suppressed cab isresiliently mounted to the frame toisolate the operator from sound andvibration for a quiet, secure andcomfortable ride.

Viewing Area. Designed for excellentall-around visibility and clear sight linesto the haul road. The large viewing area,with 52 percent more glass, enables theoperator to maneuver with confidencefor greater productivity.

Air Suspension Seat w/Three-PointOperator Restraint. Ergonomicallydesigned, fully adjustable air suspensionseat with adjustable armrests providesoptimal driving comfort. A wide,retractable 3-point seat/shoulder beltprovides a secure, comfortable restraint.

Hoist Lever. Four-position, low effortelectronic hoist control system ispositioned next to the gear selectorin the right-hand console.

Secondary Brake Pedal. Convenientlylocated on the floor for easy operatorcontrol.

Steering Column. Comfortable steeringwheel with tilt and telescoping functionprovides a comfortable driving positionfor all operators.

Transmission Console. Ergonomic gearshift lever with backlit gear indicatorsprovides easy operation. The parkingbrake function is integrated into thegear selector.

Trainer Seat. By moving the trainer seatto the left of the operator, the trainer mayenter/exit the vehicle using the samestairway door as the operator. When notin use, the fold-down trainer seat createsa working surface with cup holder.Under seat storage is convenientfor stowing a lunch box.

Operator Controls. Easy to reach turnsignal, high beam, intermittent windshieldwiper and windshield washer controls arelocated on the left side of the steeringcolumn, and are designed for optimumefficiency and comfort.

Radio Ready. Cab is prewired with powerconverter, speakers, wiring harness,antenna and necessities for add-oncommunication systems.

Multiple Power Ports. Power ports areconveniently located in three locationsin the cab: one in the right-hand console,two behind the trainer seat, and one inthe dash.

Truck Production Management System(TPMS) (Optional). TPMS providesvaluable payload and cycle time data,which is viewed through Messenger.Now the system provides 2,400 cycles,as opposed to the previous 1,400 cycles,and takes a second payloadmeasurement when the truck reachessecond gear for increased accuracy.Standard LED lamps replaceincandescent lamps on the TPMS,extending lamp life by 25 times.

Ergonomically designed for operator comfort, superior control and high productivity.

Operator’s Station

Cat Data Link. Electronically integratesmachine computer systems to optimizeoverall power train performance, increasereliability and component life, and reduceoperating costs. All the information fromthese controls can be accessed through alaptop computer with Cat ET.

Transmission Chassis Control (TCC).TCC uses electronically transferredengine rpm data to execute shifts atpreset points for optimum performance,efficiency and clutch life.

Electronic Technician (Cat ET). Cat ETservice tool provides service technicianswith easy access to stored diagnostic datathrough the Cat Data Link to simplifyproblem diagnosis and increase machineavailability. Cat ET is beneficial becauseof how it displays the status of all engineparameters, including throttle position,timing and fuel flow. Critical data fromthe electronic engine and transmissioncontrols, including transmission shifting,engine speed and fuel consumption,provides service technicians withenhanced diagnostic capability toreduce downtime and operating costs.

Controlled Throttle Shifting. Regulatesengine rpm during shifting to reducepower train stress and clutch wearby controlling engine speed, torqueconverter lock-up and transmissionclutch engagement for smoothershifts and longer component life.

Directional Shift Management.Regulates engine speed during directionalshifts to prevent damage caused by high-speed directional changes.

Neutral Coast Inhibitor. Prevents thetransmission from shifting to neutralat speeds above 6.5 km/h (4 mph),protecting the transmission fromoperating with insufficient lubrication.

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The system electronically combines critical power train components to work together moreintelligently to optimize overall truck performance.

Engine – Power Train Integration

ET

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6

5

4

8

2

1

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1 Engine Control Module (ECM) 2 Sensors 3 Mechanical Electronic Unit Injector (MEUI) 4 Automatic Retarder Control (ARC) Traction Control System (TCS) Transmission/Chassis Control (TCC) 5 Transmission 6 Wheel Sensor 7 Brakes 8 CAT Data Link 9 Cat Messenger

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Body-up Shift Limiter. Prevents thetransmission from shifting above a pre-programmed gear without the bodybeing fully lowered. This function isprogrammable via Cat ElectronicTechnician (Cat ET) and Messenger.

Body-up Reverse Neutralizer.Automatically shifts the transmission toneutral if the hoist lever is activated whilethe transmission is shifted in reverse.

Overspeed Protection. The transmissioncontrol electronically senses engineconditions and automatically up-shiftsone gear to prevent overspeeding.If overspeeding occurs in the top gear,the lock-up clutch is disengaged, andthe brakes are applied.

Programmable Top Gear. Transmissiontop gear maximum can be set using CatMessenger or the Cat ET service tool tohelp the operator maintain speed limits.

Anti-Hunt Function. This functionminimizes shifting by not allowingthe transmission to up or down shiftimmediately after a shift has occurred.This prevents gear hunting whenoperating near a shift point andminimizes transmission shiftingfor increased component life.

Downshift Inhibitor. Prevents engineoverspeeding by keeping the transmissionfrom downshifting until engine speedreaches the downshift point.

Economy Shift Mode. Modifies enginemaps for better fuel economy.

Reverse Shift Inhibitor. Protects theengine from abrupt directional changesby slowing down the engine beforeshifting the transmission into reverse.

Cat Messenger. Critical data fromthe engine and transmission, includingtransmission shifting, engine speed andfuel consumption, provides servicetechnicians with enhanced diagnosticcapability, through Cat Messenger, toreduce downtime and operating costs.

Traction Control System (TCS) (Optional).TCS electronically monitors and controlsrear wheel slippage for greater tractionand enhanced truck performance in poorunderfoot conditions.

Hydraulic Power Management System.The system reduces parasitic losses in thepower management system components.The system is operated by a variabledisplacement piston pump. This pumpis dedicated to the steering systemand is independent of the brake andhoist systems.

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Full Hydraulic Service Brake. The 772features a full hydraulic brake system,which offers significant improvementsin reliability, response, control andserviceability versus an air-overhydraulic system. There are fewercomponents (part by part comparison),boosting reliability and streamliningmaintenance.

Hydraulic Accumulators. The brakesystem is equipped with a primaryaccumulator and a secondaryaccumulator, which also provides back-up braking in the event of a failure.The accumulators automatically drainpressure after shutdown, reducing theservice time by removing the need todrain the pressure off the system andreducing the risk of high-pressureexposure during maintenance.

The new brake system uses a pump thatis driven off the flywheel 100 percentof the time and is only loaded whenhydraulic pressure falls below 11 024 kPa(1,600 psi). The pump will cut out at13 608 kPa (1,975 psi). In the new system,oil in this circuit is also sent to thehydraulic fan system. Any additionaloil is sent to the brake cooling systemalong with the oil used in the drive fan.

Improved Reliability. Because oil is nowused to actuate the brakes, Caterpillar haseliminated the need for two brake mastercylinders, two relay valves, an air dryerand the retarder valve (found on ARCtrucks only) that were associated withthe air-over-hydraulic brake system.The air system had complexity, whichaffected its reliability. The oil actuatedsystem is simpler and more reliable.

Oil-Cooled Multiple Disc Brakes. Cat dryfront and rear oil-cooled, multiple discbrakes are now hydraulically controlled,reducing maintenance costs.

The 772 brakes provide exceptional,fade-resistant braking and retarding formaximum performance and productivityin all haul-road conditions.

Extended Life Multiple Disc Brakes(Optional). Extended life friction materialhas double the wear life of standardbrakes and is twice as resistant toglazing for more consistent brakingpower with less noise.

Brake Design. Cat rear oil-cooled discbrakes are designed with large discs andplates for reliable, adjustment-freeoperation and performance. Rear brakesare completely enclosed and sealed toprevent contamination and reducemaintenance.

Long Life. An oil film prevents directcontact between the discs. This designabsorbs the braking forces by shearingthe oil molecules and carrying heataway to extend brake life.

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Reliable braking with superior control gives the operator the confidence to focus on productivity.

Brake System

Pistons. The Caterpillar two-piece pistondesign combines the service, secondary,parking brake and retarding functions inthe same system. The primary pistonhydraulically actuates both serviceand retarding functions. The secondarypiston is spring-applied and held inthe disengaged position by hydraulicpressure. If hydraulic system pressuredrops below a specified level, thespring-applied secondary pistonautomatically applies the brakes.

Parking Brake. The 772 parking brakefunction is provided by the spring-appliedfunction in each of the rear oil-cooleddisc brakes. The 772 parking brake iscapable of holding the machine with arated load on grades up to 15 percent.

Automatic Retarder Control (ARC).Standard ARC electronically controlsbraking on grade to maintain engine atapproximately 2,200 rpm (adjustable from1,950 to 2,200 rpm in increments of 10).ARC is deactivated when the operatorapplies the brakes or throttle.

• Faster Speeds. ARC allows the operatorto maintain optimum engine speeds forup to 15 percent faster downhill haulsand greater productivity.

• Superior Control. Automatic brakemodulation offers a smoother ride andbetter control in slippery conditions,allowing the operator to concentrateon driving.

• Ease of Operation. ARC increasesoperating ease, resulting in greateroperator confidence with less fatigue.

• Engine Overspeed Protection.Automatically activates ARC whenengine speed exceeds factory presetlevels, regardless of operator inputs,to avoid potentially damaging engineoverspeeds.

Traction Control System (TCS) (Optional).Electronically monitors and controls rearwheel slippage for greater traction andenhanced truck performance in poorunderfoot conditions. If slippage exceedsa set limit, the oil-cooled disc brakesengage to slow the spinning wheel.Torque is then automatically transferredto the wheel with better traction.

Compression Brake (Optional). OptionalCompression Brake is integrated withAutomatic Retarder Control (ARC)to provide up to 35 percent higherdownhill travel speed and reduce wearon brake components.

10Time (Seconds)

20 30 40 50 60

With Automatic Retarder Control(average speed, 1,950 rpm)

With Manual Retarder Control(average speed, 1,730 rpm)

Engi

ne S

peed

(rpm

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700

2,500

1,500

1,000

500

2,000

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TCSARC 1 Service Brake Sensor2 Engine Sensor3 ARC4 ARC Switch5 Brakes6 Service Brakes7 Axle Speed Sensor8 TCS

Ground-Level Access. All maintenancepoints have convenient ground level orplatform access. Common engine servicepoints are grouped on the right side ofthe engine for quick access. Two fuelfilters come standard with the machineand the primary fuel filter includes awater separator. These filters are easy tochange and are all spin-on/spin-off type.

Engine and torque converter oil checkand fill are accessed via the serviceplatform. The newly designed engineoil dipstick is “rope-type” style, makingdaily checks easier for the operator.

Service Switches. Machine switchesand an auxiliary start receptacle offereasier access and expanded capabilities.The battery disconnect switch, andauxiliary start receptacles are nowcombined into the same modularassembly and relocated for ground access.

Also, a new service panel on the LH frontof the machine provides:

• Engine Starter Lockout Switch.Power is available to the machine,but it cannot be started.

• Transmission, Hoist and SteeringLockout Switch. The 772 features anall-new transmission, hoist and steeringlockout mode. This feature disablesthe steering, hoist and transmissionhydraulics, and sets the parking brakewhile the engine is running, allowingmaintenance and trouble-shooting on thetruck. The operator can use this featureto take S•O•SSM analysis samples.

• Electrical Breakers. Ground-levelaccess to circuit breakers are nowprovided for engine control, alternatorand main electrical breakers.

Scheduled Oil Sampling.S•O•SSM sampling valves speedsampling and analysis reliability.

Pressure Test Points. Disconnect valvesare conveniently located throughout thehydraulic systems for easy pressuretesting.

Air Filters. Radial seal air filters are easyto change, reducing time required for airfilter maintenance.

Sealed Electrical Connectors. Electricalconnectors are sealed to lock out dustand moisture. Harnesses are braided forprotection. Wires are color-coded foreasy diagnosis and repair.

Fuel Filters. The C18 engine is equippedwith two fuel filters. The primary filterfeatures 10-micron screening, and thesecondary filter is 2-micron.

Oil Filter. The 772 has one engineoil filter on the right-hand side of theengine. This filter is located for easyserviceability. The oil filter is a 5-micronfilter and features a 500-hour oil changeinterval.

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Less time spent on maintenance means more time on the haul roads.

Serviceability

Electrical Access. The 772 featuresa new configuration for fuses, circuitbreakers and rear cab-mounted relays,enabling up to 50 percent faster servicing.A 12-Volt and 24-Volt power port areincluded. The automotive-style fuses,which replace the screw-in type, are allincorporated into a single enclosure thatis easily accessible from inside the cab.10-amp and 15-amp spare fuses are alsoincluded in the new design.

Cat Data Link. A Cat Data Link portlocated near the fuse panel in the cabcan access all electronic controls forobtaining monitoring and diagnosticdata. Excellent access to the ECM andelectrical panels improves the ability toperform maintenance and trouble-shootthe cab electronics.

Cat ET. Cat ET service tool providesservice technicians with easy access tostored diagnostic data through the CatData Link to simplify problem diagnosisand increase machine availability. Cat ETis beneficial because of how it displaysthe status of all engine parameters,including throttle position, timing andfuel flow. Critical data from the electronicengine and transmission controls,including transmission shifting, enginespeed and fuel consumption, providesservice technicians with enhanceddiagnostic capability to reducedowntime and operating costs.

Lincoln’s Quick Lube AutomaticLubrication (Optional). This advancedlubrication system is available as afactory installed option. This systemprovides optimal lubrication at presetintervals during machine operationsignificantly extends component life.

Clustered Grease Fittings (Optional).Clustered grease fittings save time as alllubrication points are mounted in threemain locations.

Oil Dipstick. New “rope-type” oil dipstickimproves serviceability by allowing easydaily checks.

QuickEvac™ System and PrelubeSystem. Oil change labor time isreduced by as much as 50 percentwith this standard on-board engineoil evacuation and pre-lube system.This system automatically fills engineoil filters and galleries, which ensurescomponents are lubricated prior tostarting the engine.

Extended Life Brake Discs (Optional).The extended life brake discs are madewith a friction material that provideslonger service life and increased heatresistance when compared toCaterpillar’s standard brake offerings.Discs use an innovative carbon paper forbraking and can be expected to double thelife of standard paper friction materialin most conditions. This is a significantstep forward, especially in long, downhill-loaded hauling applications. The materialis also twice as resistant to glazing, whichis common during periods of high-temperature braking in moderate to severeoperating conditions. Resistance to glazingleads to more consistent braking power.

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Increased Body Capacities. The 772body capacity at 31.3 m3 (41.0 yd3) hasincreased 14% over the 771D at 27.5 m3

(36.0 yd3). Payloads are based on 1660 kgper LCM (2,800 lb per LCY) material.

Electronic Hoist Control. Provides theoperator with better control of the loadwhen dumping, including over-centerload control and modulated controlthroughout the operating range.The automatic body snubbing featurereduces impact on the frame, hoistcylinders and operator.

1) Dual Slope Body 2) Flat Floor Body

Body Design. The new dual slope andflat floor body systems will continue touse fully fabricated, mild steel structures,offering a strong, yet weldable underbodystructure. All interior, steel body surfacesthat come in contact with material arefabricated from 400 BHN steel to providesuperior wear characteristics andresistance to impact. Wide box-sectionribs provide excellent durability andimpact support in the floor, front-wall,sidewall, and top rail areas. Full-lengthstringer rails enhance strength andrigidity throughout the body. Other newfeatures that further enhance durabilityof the understructure include:

• Sidewall ribs are integrated into thefloor ribs, forming a belt to provideincreased strength in the sidewalls.

• Underbody ribs are increased fromseven to nine, enhancing theunderbody structural support.

• Front wall body rest supports areintegrated into the front wallstructure for enhanced durability.

• Full-length, single-piece stringer railsare used, improving the structuralsupport in the body, especiallyin the body pivot support area.

• Front wall is 400 BHN and thethickness is increased from 10.2 mm(0.4 in) to 16.0 mm (0.63 in),eliminating the need for additionalliners for impact resistance in mostapplications.

Application Specific Body Systems.With the introduction of the nextgeneration of trucks, Caterpillar will buildon the previous strengths and providedifferentiation through six different bodysystems. Both dual slope and flat floorbodies will be available in the followingconfigurations:

• Low Impact, Steel Body System

• Medium Impact, Steel Body System

• High Impact, Steel Body System

• Heavy Duty Impact, Steel BodySystem

• High Impact, Rubber Body System

• Heavy Duty High Impact, RubberBody System

• For low abrasion limestone quarryapplications, Caterpillar offers aone-piece quarry steel body systemwith a 25 mm (0.98 in) steel floor.

Steel-Lined Body System. The traditionalsteel-lined system is well understood byusers worldwide. In the new 772 steelbody system, the unique design allowsthe floor and liner to work together toprovide the impact and wear resistance.The Medium Impact, Steel Body Systemoffers an optimum combination of wearand impact resistance, while maximizingperformance. If the application dictateshigher impact or wear needs, the HighImpact, Steel Body System or the HeavyDuty, High Impact, Steel Body Systemprovides more impact and wearresistance, but at an increase in bodyweight versus the Medium Impact,Steel Body System.

1 2

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Cat designed and built for rugged performance and reliability in the toughesthauling applications.

Truck Body Systems

Rubber-Lined Body System. A newoffering available from the factory is therubber-lined body system. For impactresistance in hard-rock applications,rubber liners offer a practical, durableand cost-effective solution. They dissipateimpact energy, maximizing body lifeand reduce noise, improving job sitework conditions inside and outside thecab. These maintenance-free liners alsorequire minimal installation time.

The density of rubber is 20 percent ofthe density of steel, yet its ability toabsorb impact is three times that ofsteel. This gives rubber a high impactstrength-to-weight ratio. In addition,truck operators enjoy a better operatorenvironment, without the hard impactsfelt during loading.

Body System Selection. Two primaryfactors affect body selection:

• Impact. Impact is the energy that iscreated by the material when it hits thetruck body. The condition and size ofmaterial, combined with the height atwhich it is dropped, greatly determinesthe impact energy that the body mustabsorb. The most measurable effect ofimpact is structural bending, chipping,cracking, and spalling. These conditionscan be created when the impact absorptioncapability is exceeded by the impact ofthe material itself. Generally speaking, ahigh impact material might be basalt orgranite. A medium impact materialmight be mixture of decomposed rock(75 percent rock, 25 percent dirt), whilea low impact material might simply bedry, packed dirt.

• Abrasion or Wear. The tendency of amaterial to grind away the surface of abody by means of friction is abrasion.Abrasion occurs when a material’shardness is higher than the wear surfacethat it slides on. A high abrasion materialcould be any rock material containing ahigh proportion of hard, angular mineralssuch as quartz. Granite tends to be highlyabrasive. A moderate abrasion materialmight contain a high proportion ofminerals such as calcite. Limestone ismost likely in the moderately abrasivecategory. A low abrasion material couldbe any material that contains mineralssuch as talc.

Exhaust Routing. There are three exhaustrouting systems available for the 772,depending on the customer’s requirementsfor body heat and sound:

• Full-Time Body Routing. The standarddesign provides full-time routing ofexhaust into the body to heat areas wherematerial gathers. This plays a crucial rolein preventing material from being retainedin the body during dumping. Not for usewith rubber liner body systems.

• Full-Time Muffler Routing. The secondoption is the full-time routing of exhaustthrough a muffler, which eliminatesexhaust in the body. This option shouldbe used for rubber-lined bodies orapplications that do not requirebody heat.

• Diverter Box Routing. The finaloption provides a diverter box so thatthe customer has the flexibility tochoose whether to route the exhaustthrough the body or directly throughthe muffler. Not for use with rubberliner body systems.

Target Payload Strategy. Your Cat dealercan help you manage to target payloadto maximize equipment use, ensure safeoperation, increase productivity andlower cost-per-ton.

• Underloading increases costs dueto lost payloads, underutilizesequipment, and increases cost-per-ton.

• Overloading causes excessive wear onvehicle components, such as brakes,tires and drive train, reducingcomponent life and increasingmaintenance costs and repairs.

Matched Systems. Designed to work asan optimum pass/match system, the 772is best sized to match the 988H WheelLoader, with a 4 pass/match, the 990HWheel Loader with 3 pass/match, andthe 385C Hydraulic Excavator with a6 pass/match.

17

New Features.

• Standard Messenger Display replacesCaterpillar Electronic MonitoringSystem (CEMS) unit.

• Enhanced TPMS (OptionalAttachment) incorporates secondgear weighing capability andincreases to 2,400 cycles ofdata storage for analysis.

Cat Messenger. Standard on the 772, CatMessenger provides real-time machineperformance and operating data, andbasic trip, maintenance and diagnosticdata using an LCD display. The viewableLCD screen area of the Messengerdisplay is 22.5 mm � 84.6 mm(0.89 in � 3.33 in).

Service Mode. This allows a technician tochange machine settings that are typicallychanged via Cat ET through the display.Service Mode can be a password-protected feature to inhibit the operatorfrom changing these settings. Settings thatcan be changed via Service Mode are:

• Top Gear Limit

• Body Up Gear Limit

• Machine Overloaded Speed Limit(if TPMS is installed)

• Machine Speed Limit

• Economy Shift Mode

• Desired Engine Retard Speed

• Target Payload (if TPMS is installed)

• Payload Overload Limit(if TPMS is installed)

Real Time System Parameter Display.This will show a real-time display ofvarious machine parameters related tothe engine, transmission, hoist, brakeand TPMS (if installed) systems.

• System Tests. The technician canperform a transmission stall test anda monitoring system self test.

• Machine Functionality. Records anddisplays worst-case values for brake,hoist and hydraulic fan oil temperature,engine coolant temperature, tachometer,transmission/torque converter temperature,and fuel level since the last reset.

• System Information. Displays electronicsystem information such as the ECM partnumber, the software part number andthe software release date.

• Supports Multiple Languages.Available in 47 languages. Please consultwith your salesman as to specificlanguage availability.

• Payload Calibration.(if TPMS is installed)

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Vital machine health and payload data keeps the 772 performing at peak production levels.

Information and Monitoring Systems

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1 Gauge Cluster 2 Messenger Display 3 Action Alarm 4 ADEM A4 Engine Control Module 5 CAT Data Link 6 Payload Lamps 7 Truck Production Management System 8 Diagnostic Connector (ET) 9 Automatic Retarder Control (ARC) Traction Control System (TCS) Transmission/Chassis Control (TCC) Module

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Truck Production Management System(TPMS) (Optional). TPMS providesvaluable payload and cycle timedata to improve productivity.

• Uses strut pressure sensors and on-board microprocessor to determinepayload weight.

• Delivers consistent, accurate payloadsand improves efficiency byminimizing overloading andunderloading.

• External lights signal loading tooloperator when payload is reached.

• On-board computer stores up to2,400 cycles for analysis of payloadweight, cycle times, distances andactual cycle dates and times.

• A second gear reweigh takes anadditional measurement once thetruck has reached second gearfor improved accuracy.

• System is accurate within ± 5 percentunder normal loading conditions overa normal shift.

• Standard LED lamps replaceincandescent lamps on the TPMS,extending lamp life by 25 times.

Product Link. Using satellitetechnology, this optional wirelesssystem automatically reports information,including vital machine health data, to Catdealers and customers via e-mail or pager.It can streamline diagnostic efforts,downtime, and maintenance schedulingand costs. The standard configuration ofthe 772 is Product Link (Level 1) ready.Product Link PL321SR (Level 3) isoffered as a standard factory-installedattachment.

Equipment Manager (Optional).Product Link data can be delivered toa customer’s desktop via this on-line,user-friendly subscription service.Information is organized and color-coded according to priority. There arefour levels of Equipment Managerservice available:

• Asset Watch. Provides alerts, locationand fuel levels and machine start andstop times.

• Maintenance Watch. Provides all AssetWatch data, plus repair and maintenanceinformation, such as PM maintenance dueor past due, and PM maintenance history.

• Health Watch. Provides all MaintenanceWatch data, and adds machine faultinformation, performance trendingand S•O•S oil analysis reportingwith interpretation tools.

• Utilization and Productivity Watch.Offers comprehensive customized usageand monitoring reports.

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Product Safety. Caterpillar has been andcontinues to be proactive in developingmachines that meet or exceed safetystandards. Safety is an integral partof all machine and systems designs.

Integral ROPS Cab. Resiliently mountedto the frame to reduce vibration andsound, the integral ROPS structure,which provides “five-sided protection”for the operator, is designed as anextension of the truck frame.

Payload Guidelines. Safety is integral tomaintaining the highest productivity inmining machine operation. The Caterpillar10/10/20 Payload Guidelines ensuresthat steering and braking systems havesufficient capacity to perform.

WAVS Camera (Optional). An optionalrear vision camera system providesvisibility to the rear of the machinethrough an LCD monitor in the cab.The monitor an be set to activate onlywhen the truck is in reverse, and thedisplay is equipped with a sensor todetect ambient light, which automaticallybrightens or dims the display.

Brake Systems. Cat hydraulicallycontrolled dry front and rear oil-cooledmultiple disc brakes provide exceptional,fade-resistant braking and retarding formaximum performance and productivityin all haul-road conditions. The servicebrakes and retarding system are actuatedby modulated hydraulic pressure, whilesecondary and parking brake functionsare spring applied and hydraulic released.This reliable and durable system ensuresbraking in the event of completehydraulic failure.

Steering System. A twin, double-actingcylinder steering system is designed todeliver precise control under all loadingand underfoot conditions. The steeringhydraulic system is separate from themain hydraulic system to preventcrosscontamination and overheating.

Engine Shutoff Switch. A secondaryengine shutoff switch is located atground level.

Electrical System Disconnect. A batterydisconnect switch, located directly abovethe front bumper, provides ground-levellockout of the electrical system.

Ladder/Secondary Egress. Widestationary stairways and platforms onboth sides of the machine, allow easyingress and egress.

Standard Safety Features.

• Slip resistant surfaces

• 75 mm (3 in) wide three-pointoperator restraint

• Heated, wide-angle mirrors

• Body raised indicator

• Guard rails

• Reverse neutralizer when dumping

• Low interior sound level

• Service platform level transmission,hoist and steering disable switch

• Service platform level starterdisable switch

SAFETY.CAT.COM™.

SafetyCaterpillar machines and systems are designed with safety as the first priority.

21

Commitment Makes the Difference.Cat® dealers offer a wide range ofsolutions, services and productsthat help you lower costs, enhanceproductivity and manage your operationmore efficiently. Support goes far beyondparts and service. From the time youselect a piece of Cat equipment untilthe day you rebuild, trade or sell it, thesupport you get from your Cat dealermakes the difference that counts.

Dealer Capability. Cat dealers provide thelevel of support you need, on a globalscale. Dealer expert technicians havethe knowledge, experience, training andtooling necessary to handle your repairand maintenance needs, when andwhere you need them.

Product Support. Cat dealers believesuperior products deserve superiorsupport. When Cat products reach thefield, they are supported by a worldwidenetwork of parts distribution facilities,dealer service centers, and technicaltraining facilities to keep your equipmentup and running. Cat customers rely onprompt, dependable parts availabilityand expertise through our global dealernetwork, ready to meet your needs 24/7.

Service Support. Every piece of Catequipment is designed and built toprovide maximum productivity andoperating economy throughout itsworking life. Cat dealers offer awide range of service plans thatwill maximize uptime and returnon your investment, including:

• Preventive Maintenance Programs

• Diagnostic Programs, such asScheduled Oil Sampling andTechnical Analysis

• Rebuild and Reman Options

• Customer Support Agreements

Application Awareness. Operating andmaintenance costs are influenced bymany application and site-specific factors,such as material density, loading position,payload, grades, speeds, haul road designand maintenance. To optimize total costof ownership and productivity, your Catdealer can provide you with a fundamentalunderstanding of the effects applicationcharacteristics and operating techniqueshave on maintenance and operating costs.

Operation. With today’s complexproducts, equipment operators must havea thorough understanding of machinesystems and operating techniques tomaximize efficiency and profitability.Your Cat dealer can arrange trainingprograms to help operator’s improveproductivity, decrease downtime, reduceoperating costs, enhance safety, andimprove return on the investmentyou make in Cat products.

www.cat.com. For more completeinformation on Cat products, dealerservices, and industry solutions,visit us on the web at www.cat.com.

Customer SupportCat dealers have what it takes to keep trucks productive.

22 772 Off-Highway Truck specifications

Transmission

Forward 1 12.9 km/h 8 mphForward 2 17.7 km/h 11 mphForward 3 24 km/h 14.9 mphForward 4 32.2 km/h 20 mphForward 5 43.6 km/h 27.1 mphForward 6 58.7 km/h 36.5 mphForward 7 79.7 km/h 49.5 mphReverse 16.9 km/h 10.5 mph

• Maximum travel speeds with standard 21.00R33 (E4) tires.

Final Drives

Differential Ratio 2.74:1Planetary Ratio 4.80:1Total Reduction Ratio 13.15:1

Brakes

Brake Surface – Front 1395 cm2 216 in2

Brake Surface – Rear 50 284 cm2 7,794 in2

Brake Standards ISO 3450: 1996

• Target Gross Machine Operating Weight is up to 82 100 kg(181,000 lb).

Body Hoists

Pump Flow – High Idle 515 L/min 136 gal/minRelief Valve Setting – Raise 17 255 kPa 2,500 psiRelief Valve Setting – Lower 3450 kPa 500 psiBody Raise Time* 8.1 SecondsBody Lower Time – Float 14.7 SecondsBody Power Down – High Idle* 14.3 Seconds

* Without Sound Suppression Package

Capacity – Dual Slope – 100% fill factor

Struck 24.2 m3 31.7 yd3

Heaped 2:1 (SAE) 31.2 m3 40.8 yd3

Capacity – Flat Floor – 100% fill factor

Struck 23.3 m3 30.5 yd3

Heaped 2:1 (SAE) 31.3 m3 41 yd3

Engine

Engine Model Cat® C18 ACERT™Rated Engine Speed 1,800 rpmGross Power – SAE J1995 446 kW 598 hpNet Power – SAE J1349 399 kW 535 hpNet Power – ISO 9249 399 kW 535 hpNet Power – ISO 9249:1997 399 kW 535 hpNet Power – 80/1269/EEC 399 kW 535 hpNumber of Cylinders 6Peak Torque 2696 N•m 1,988 lb-ftBore 145 mm 5.7 inStroke 183 mm 7.2 inDisplacement 18.1 L 1,105 in3

• Power rating applies at 1,800 rpm when tested underthe specified condition for the specified standard.

• Ratings based on SAE J1995 standard air conditions of 25° C(77° F) and 100 kPa (29.61 Hg) barometer. Power based onfuel having API gravity of 35 at 16° C (60° F) and an LHV of42 780 kJ/kg (18,390 BTU/lb) when engine used at 30° C (86° F).

• No engine derating required up to 2286 m (7,500 ft) altitude.

• Compliant with U.S. Environmental Protection Agency Tier 3emissions standards and European Union Stage IIIaregulations.

Weights – Approximate

Target Gross Machine 82 100 kg 181,000 lbOperating WeightChassis Weight 25 025 kg 55,171 lbBody Weight 10 429 kg 23,013 lb

• Body weight varies depending on how body is equipped.Shown above is the Flat Floor, Medium Impact, SteelBody System.

Operating Specifications

Nominal Payload Class (100%) 46 tonnes 51 tonsMaximum Working Payload (110%) 51 tonnes 56 tonsNot to Exceed Payload* (120%) 55 tonnes 61 tonsTop Speed – Loaded 79.7 km/h 49.5 mphBody Capacity – SAE 2:1 31.3 m3 41 yd3

Target Payload Capacity 45 tonnes 50 tons

• Nominal payload and capacity based on Quarry Body.Liner and attachment selection will affect payload andmaximum gross machine operating weight.

* Refer to Caterpillar® 10/10/20 Payload Policy for maximumgross machine weight limitations.

23772 Off-Highway Truck specifications

ROPS

ROPS/FOPS Standards

• ROPS (Rollover Protective Structure) for cab offeredby Caterpillar meets ISO 3471:1994 ROPS criteria.

• FOPS (Falling Objects Protective Structure) meetsISO 3449:1992 Level II FOPS criteria.

Sound

Sound Standards

• The operator sound pressure level measured according towork cycle procedures specified in ANSI/SAE J919 APR95is 79 dB(A) for cab offered by Caterpillar, when properlyinstalled and maintained and tested with doors and windowsclosed, engine speed at high idle, and fan at medium settings.

• The exterior sound pressure level for the standard machinemeasured at a distance of 15 m (49 ft) according to the testprocedures specified in SAE J88 APR95, mid-gear movingoperation is 84 dB(A).

• Hearing protection may be needed when operating with anopen operator station and cab (when not properly maintainedor doors/windows open) for extended periods or in a noisyenvironment.

Steering

Steering Standards ISO 5010:1992Steer Angle 36°

• Target Gross Machine Operating Weight is 82 100 kg(181,000 lb).

• Turning circle as measured from the outside of the tire is19.8 m (64.9 ft).

Weight Distributions – Approximate

Front Axle – Empty 48%Front Axle – Loaded 34%Rear Axle – Empty 52%Rear Axle – Loaded 66%

Suspension

Effective Cylinder Stroke – Front 234 mm 9.2 inEffective Cylinder Stroke – Rear 149 mm 5.9 inRear Axle Oscillation 8.94°

Service Refill Capacities

Fuel Tank 530 L 140 galCooling System 114 L 30 galCrankcase 60 L 16 galDifferentials and Final Drives 159 L 42 galSteering Tank 34 L 9 galSteering System (Includes Tank) 56 L 15 galBrake/Hoist/Fan Hydraulic Tank 155 L 35 galBrake/Hoist/Fan System (Tank) 277 L 73 galTransmission/Torque 53 L 14 galConverter SumpTransmission/Torque Converter 95 L 25 galSystem (Includes Sump)

Tires

Standard Tire 21.00R33 (E4)

• Productive capabilites of the 772 truck are such that, undercertain job conditions, TKPH (TMPH) capabilities of standardor optional tires could be exceeded and, therefore, limitproduction.

• Caterpillar recommends the customer evaluate all jobconditions and consult the tire manufacturer for propertire selection.

DimensionsAll dimensions are approximate.

1 Height to Top of ROPS 4093 mm 13 ft 6 in2 Overall Body Length 8125 mm 26 ft 8 in3 Inside Body Length 5549 mm 18 ft 3 in4 Overall Length 8740 mm 28 ft 9 in5 Wheelbase 3960 mm 13 ft 0 in6 Rear Axle to Tail 2605 mm 8 ft 6 in7 Ground Clearance 720 mm 2 ft 5 in8 Dump Clearance 560 mm 1 ft 10 in9 Loading Height – Empty 3550 mm 11 ft 8 in10 Inside Body Depth – Max 1706 mm 5 ft 8 in

11 Overall Height – Body Raised 8357 mm 27 ft 5 in12 Operating Width 4780 mm 15 ft 8 in 13 Centerline Front Tire Width 3165 mm 10 ft 5 in14 Engine Guard Clearance 714 mm 2 ft 5 in15 Outside Body Width 3952 mm 13 ft 0 in16 Inside Body Width 3698 mm 12 ft 2 in17 Front Canopy Height 4265 mm 14 ft 0 in18 Rear Axle Clearance 560 mm 1 ft 11 in19 Centerline Rear Dual Tire Width 2652 mm 8 ft 9 in20 Overall Tire Width 3927 mm 12 ft 11 in

47.5°10

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Flat FloorMedium Quarry Body Heavy Duty

Low Impact Impact Steel 25 mm High Impact Impact Heavy DutySteel Liner Steel Liner Floor Steel Liner Steel Liner Rubber Liner

Body System Body System No Liner Body System Body System Body System8 mm 16 mm 25 mm 20 mm 25 mm 102 mm

(0.315 in) (0.630 in) (1.0 in) (0.787 in) (1.0 in) (4.0 in)Target Gross Machine Weight* kg (lb) 82 100 (181,000) 82 100 (181,000) 82 100 (181,000) 82 100 (181,000) 82 100 (181,000) 82 100 (181,000)Empty Chassis Weight* kg (lb) 25 025 (55,171) 25 025 (55,171) 25 025 (55,171) 25 025 (55,171) 25 025 (55,171) 25 025 (55,171)Body System Weight kg (lb) 8564 (18,881) 10 439 (23,013) 10 651 (23,481) 10 910 (24,053) 11 982 (26,415) 11 617 (25,612)Empty Machine Weight kg (lb) 33 589 (74,052) 35 464 (78,184) 35 676 (78,652) 35 935 (79,224) 37 007 (81,586) 36 642 (80,783)AttachmentsFuel Tank Size L (gal) 529 (140) 529 (140) 529 (140) 529 (140) 529 (140) 529 (140)Fuel Tank – 100% fill kg (lb) 445 (983) 445 (983) 445 (983) 445 (983) 445 (983) 445 (983)Empty Operating Weight** kg (lb) 34 034 (75,035) 35 909 (79,167) 36 121 (79,635) 36 380 (80,207) 37 452 (82,569) 37 087 (81,766)Target Payload* kg (lb) 48 066 (105,965) 46 191 (101,833) 45 979 (101,365) 45 720 (100,793) 44 648 (98,431) 45 013 (99,234)Target Payload* tonnes (tons) 48.1 (53.0) 46.2 (50.9) 46.0 (50.7) 45.7 (50.4) 44.6 (49.2) 45.0 (49.6)10/10/20 Policy*Target Payload – 100% kg (lb) 48 066 (105,965) 46 191 (101,833) 45 979 (101,365) 45 720 (100,793) 44 648 (98,431) 45 013 (99,234)Target Payload – 110% kg (lb) 52 873 (116,562) 50 810 (112,016) 50 577 (111,502) 50 292 (110,872) 49 113 (108,274) 49 514 (109,157)Target Payload – 120% kg (lb) 57 679 (127,158) 55 429 (122,200) 55 175 (121,638) 54 864 (120,952) 53 578 (118,117) 54 016 (119,081)Max. Gross MachineWeight* kg (lb) 91 713 (202,193) 91 338 (201,367) 91 296 (201,273) 91 244 (201,159) 91 030 (200,686) 91 103 (200,847)

Dual SlopeMedium Heavy Duty

Low Impact Impact High Impact ImpactSteel Liner Steel Liner Steel Liner Steel Liner

Body System Body System No Quarry Body System Body System No Rubber8 mm 16 mm Body 20 mm 25 mm Body

(0.315 in) (0.630 in) Offered (0.787 in) (1.0 in) OfferedTarget Gross Machine Weight* kg (lb) 82 100 (181,000) 82 100 (181,000) – 82 100 (181,000) 82 100 (181,000) –Empty Chassis Weight* kg (lb) 25 025 (55,171) 25 025 (55,171) – 25 025 (55,171) 25 025 (55,171) –Body System Weight kg (lb) 8564 (18,880) 10 413 (22,956) – 10 913 (24,059) 11 969 (26,386) –Empty Machine Weight kg (lb) 33 589 (74,051) 35 438 (78,127) – 35 938 (79,230) 36 994 (81,557) –AttachmentsFuel Tank Size L (gal) 529 (140) 529 (140) – 529 (140) 529 (140) –Fuel Tank – 100% fill kg (lb) 445 (983) 445 (983) – 445 (983) 445 (983) –Empty Operating Weight** kg (lb) 34 034 (75,034) 35 884 (79,110) – 36 383 (80,213) 37 439 (82,540) –Target Payload* kg (lb) 48 066 (105,966) 46 217 (101,890) – 45 717 (100,787) 44 661 (98,460) –Target Payload* tonnes (tons) 48.1 (53.0) 46.2 (50.9) – 45.7 (50.4) 44.7 (49.2) –10/10/20 Policy*Target Payload – 100% kg (lb) 48 066 (105,966) 46 217 (101,890) – 45 717 (100,787) 44 661 (98,460) –Target Payload – 110% kg (lb) 52 873 (116,563) 50 869 (112,079) – 50 289 (110,866) 49 127 (108,306) –Target Payload – 120% kg (lb) 57 679 (127,159) 55 461 (122,268) – 54 861 (120,944) 53 593 (118,152) –Max. Gross MachineWeight* kg (lb) 91 713 (202,193) 91 343 (201,378) – 91 243 (201,157) 91 032 (200,692) –

** Refer to the Caterpillar 10/10/20 overload policy.** Includes weight of all attachments.

Weight/Payload Calculation(Example)


To determine gradeability performance: Read from grossweight down to the percent of total resistance. Total resistanceequals actual percent grade plus 1% for each 10 kg/t (20 lb/ton)of rolling resistance. From this weight-resistance point, read

horizontally to the curve with the highest obtainable gear, thendown to maximum speed. Usable rimpull will depend upontraction available and weight on drive wheels.

Gradeability/Speed/Rimpull

Direct Drive

Torque Converter Drive

E – Typical Field Empty Weight

L – Target Gross Machine Operating Weight 82 100 kg (181,000 lb)

0 5 10 15 20 25 30 35 40 45 50 550

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To determine retarding performance: Add lengths of alldownhill segments and, using this total, refer to properretarding chart. Read from gross weight down to the percenteffective grade. Effective grade equals actual % grade minus1% for each 10 kg/t (20 lb/ton) of rolling resistance. From thisweight-effective grade point, read horizontally to the curvewith the highest obtainable gear, then down to maximumdescent speed brakes can properly handle without exceeding

With ARC Only

ARC and Engine Brake


L – Target Gross Machine Operating Weight 82 100 kg (181,000 lb)

cooling capacity. The following charts are based on theseconditions: 32° C (90° F) ambient temperature, at sea level,with 21.00 R33 tires.

NOTE: Select the proper gear to maintain engine rpm at the highestpossible level, without overspeeding the engine. If cooling oiloverheats, reduce ground speed to allow transmission to shift tothe next lower speed range.

Retarding Performance

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Grade Distance – 600 m (2,000 ft)

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L – Target Gross Machine Operating

Weight 82 100 kg (181,000 lb)

With ARC Only




Weight 82 100 kg (181,000 lb)


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Gross Weight

lb x 1000

25%

20%

Speed


0 5025 10075 125 150 175 200

0 10 20 30 40 50 60 70 80 90 100

kg x 1000

lb x 10000 5025 10075 125 150 175 200

0 10 20 30 40 50 60 70 80 90 100

0 10 20 30 40 50 60 70 80 90 100

0 5 10 15 20 25 30 35 40 45 50 55 60

km/h

mph

0 10 20 30 40 50 60 70 80 90 100

2

3

1

5%

10%

15%

30%

5

4

67


With ARC Only




Weight 82 100 kg (181,000 lb)

With ARC Only




Weight 82 100 kg (181,000 lb)

Standard EquipmentStandard equipment may vary. Consult your Cat dealer for details.

POWER TRAINCat C18 Engine with ACERT® Technology

6-cylinder dieselAir-to-Air Aftercooler (ATAAC)Air cleaner with precleaner (1)Automatic cold mode idle controlElectric startQuick Evac™ System with engine prelubeTurbocharger

Braking system:Automatic Retarder Control (ARC)

(utlizes rear oil-cooled brakes)Brake release motor (towing)Caliper-disc (front)Oil-cooled, multiple disc (rear)ParkingSecondaryService

Transmission:7-speed automatic powershiftBody up shift inhibitorControlled throttle shiftingDirectional shift managementDownshift inhibitorNeutral start switchNeutral coast inhibitorReverse shift inhibitorReverse neutralizer during dumpingProgrammable top gear selection

ANTIFREEZEExtended Life Coolant to –35° C (–30° F)

ELECTRICALAlarm, backupAlternator, 95-ampAuxiliary jump start receptacleBatteries, maintenance-free, 12V (2), 190 amp-hourElectrical system, 24VLighting system:

Backup light (halogen)Directional signals/hazard warning, (front/rear LED)Headlights, halogen with dimmerOperator access courtesy lightsSide profile lightsStop/tail lights LED

OPERATOR ENVIRONMENTAir conditioningAshtray and cigarette lighterCoat hookCup holders (4)Diagnostic connection port, 24VEntertainment Radio Ready

5 amp converterSpeakersAntennaWiring harness

Gauges/indicators:Air cleaner service indicator – electronicBrake oil temperature gaugeCoolant temperature gaugeEngine overspeed indicatorFuel levelHour meterSpeedometer/odometerTachometerTransmission gear indicator

Heater/defroster, 11 070 kCal (43,930 BTU)Hoist leverHorn, electricLight, dome/courtesyMessenger display unitMirrorsPower port, 12VROPS cab, insulated/sound suppressedSeat, Caterpillar Comfort

Full air suspensionRetractable, 3-point seat belt with shoulder harness

Seat, training with lap beltSteering wheel, padded, tilt and telescopicStorage compartmentSun visor, tinted glassThrottle lockWindshield wiper (intermittent) and washer



Standard EquipmentStandard equipment may vary. Consult your Cat dealer for details.

OTHER STANDARD EQUIPMENTBody mounting group (flat floor or dual slope body)Body safety pin (secures body in up position)Body down indicatorCD-ROM parts bookFan, hydraulic demandFuel tank, 530 L (140 gal)Ground level battery disconnectGround level engine shutdownGround level grease fittingsReservoirs (separate):

Brake/converter/hoistSteeringTransmission/torque converter

Rims, 330 � 838 mm (13 � 33 in)Rock ejectorsService platform, left/right sideSupplemental steering (automatic)Tie down eyesTow hooks, frontTow pin, rear

PRODUCT LINK COMMUNICATIONSProduct Link Ready

GUARDSEngine crankcaseDriveline

SUSPENSION SYSTEMSuspension, front/rear (European Union compliant)

Optional EquipmentOptional equipment may vary. Consult your Cat dealer for details.

Fast Fill Fuel SystemFast Fill Fuel System Non-PressurizingFuel Heater KitIntegrated Brake ControlMufflerSound Suppression PackageSpare Rim (330 mm) 13 inTraction Control System (TCS)Truck Production Management System (TPMS)Wheel Chocks

Optional Body Systems:Body Liner, Dual Slope/Flat Floor,

Steel, 8 mm, 16 mm, 20 mm or 25 mm(0.31 in, 0.63 in, 0.79 in or 0.98 in)

Body Liner, Dual Slope/Flat Floor, Rubber, High ImpactAutomatic Lube SystemCat Compression BrakeClustered Grease FittingsEngine Coolant Heater – 120VEngine Coolant Heater – 240VEther Starting AidExhaust Diverter/Muffler

For more complete information on Cat products, dealer services, and industry solutions, visit us on the web at www.cat.com

© 2010 CaterpillarAll Rights Reserved

Printed in U.S.A.

Materials and specifications are subject to change without notice.Featured machines in photos may include additional equipment.

See your Cat dealer for available options.

CAT, CATERPILLAR, SAFETY.CAT.COM, their respective logos, “Caterpillar Yellow”and the “Power Edge” trade dress, as well as corporate and product identity used

herein, are trademarks of Caterpillar and may not be used without permission.

AEHQ5724-03 (8-10)

Replaces AEHQ5724-02

772 Off-Highway Truck

specalog for 772 off-highway truck, aehq5724-03

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