specalog for 770 off-highway truck, aehq5723-02

®®

EngineEngine Model Cat® C15 ACERT™Gross Power – SAE J1995 381 kW 511 hpNet Power – SAE J1349 355 kW 476 hp

Weights – ApproximateTarget Gross Machine 71 214 kg 157,000 lbOperating Weight

Operating SpecificationsNominal Payload Class 36.3 tonnes 40 tonsBody Capacity – SAE 2:1 25.1 m3 32.9 yd3

• Refer to the Caterpillar® 10/10/20 Overload Policyfor maximum gross machine weight limitations.

• Capacity with flat floor body.

770Off-Highway Truck

2

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

Top Performance.Developed specifically for construction,mining, and quarry applications, the 770optimizes 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 770 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. pg. 16

✔

Serviceability

The 770 offers 500-hour engine serviceintervals – 250 hours more than the 769D.Simplified service and maintenancefeatures combined with improvedservice access are designed toreduce downtime. pg. 14

✔

Structures

The 770 features a mild-steel, box-sectiontype frame to deliver durability and longlife with low operating costs. Castings andforgings are strategically placed in high-stress areas to evenly distribute stressesand provide long fatigue life. pg. 8

✔

Power Train – Transmission

The Cat® seven-speed power shifttransmission matched with the Cat C15engine with ACERT Technology providesconstant power and efficiency over awide operating speed range for optimalpower train performance. pg. 6

✔

Power Train – Engine

The Cat® C15 engine with ACERT™Technology uses advanced enginetechnology to reduce emissionswithout after-treatment. The turbocharged,aftercooled 6-cylinder engine has fasterresponse for superior performance indemanding applications. pg. 4

✔

Information and Monitoring Systems

Standard on the 770, the Cat Messengersystem provides real-time engineperformance and operating data. pg. 18

✔

✔ New Feature

3

Safety

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

✔

Operator’s Station

The 770 features an all new operatorstation with enhanced visibility,increased operator space andergonomically designed controls thatset new industry standards for operatorcomfort. All controls and gauges arepositioned for optimum efficiencyand total machine 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 informationto optimize 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

Caterpillar® 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 takes tokeep your hauling machines productive.pg. 21

✔

Cat® C15 Engine with ACERT™Technology. Caterpillar optimizes engineperformance while meeting U.S. EPATier 3 and European Union Stage IIIaengine emission regulations. ACERTTechnology 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 C15 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-ringconnection points, reducing the potentialfor leaks. This new design supports theengine’s higher compression ratios andincreased 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 overhead camis driven by gears on the front of theengine, which significantly reduce noiseand vibration. Caterpillar also has addedtwo pendulum absorbers, mounted atthe 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 18:1 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 cooling andis more securely fastened to the crankshaftusing two additional bolts. The newimproved rod bearings are made of steel-backed copper alloy with lead tin overlay.This new metallurgy reduces flakingand offers better fatigue strength.

Cylinder liners are wet liners made ofcompacted graphite and iron for excellentwear and strength characteristics. Also, thetolerances between the pistons and thewet cylinder liners have been tightenedto unprecedented levels for reducedblow-by and higher efficiency.

4

The Cat® C15 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 C15 engine iswater-cooled to accommodate sudden hotmachine shutdowns. Water cools thebearings during this event, preventingbearing seizure. The C15 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 uses an aluminumcompression wheel. Changes enablethe C15 to deliver longer life and lowermaintenance costs and contribute to goodfuel economy. The design also provideshigh horsepower with improved responsetime while keeping exhaust temperatureslow for long hours of continuousoperation. The waste-gate turbochargerdesign improves engine response andpeak torque, while providing higherboost over 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 770 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 C15 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 opposite endfor more efficient ambient coolingcapability and greater durability.

Hydraulic Demand Fan and AccessoryDrive. The 770 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 C15 engine includes a Poly-Vaccessory drive belt with an auto-tensioner, which is self adjusting.

5

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 C15 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 integrated functionalityto controlled throttle shifting, directionalshift management, neutral coast inhibitor,body-up shift limiter and body-upreverse neutralizer.

Throttle Lock. The operator can nowelectronically lock the throttle pedalat full 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 Final Drives.The new Cat differential works withthe proven final drives as a system todeliver 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.

6

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

Power Train – Transmission

New A-Frame. The new A-frame mountsdirectly to the spindles. The new A-frameeliminates the “king” bolt and includesa pin and bushing style mounting,consistent with the 777 and 793.This new design is simpler tomaintain 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 are longerand wider with fewer seals for increasedstrength 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 brakes onthe 770 rear axle features 24 brake discs.The brake discs have increased in diameterfrom 495.3 to 540.0 mm (19.5 to 21.3 in).By increasing the diameter, Caterpillarhas improved the overall reliability anddurability of the brake packs and has alsodesigned the brake packs to improve theOD/ID ratio. The new 770 brake packdesign, moves the braking forces to theouter edge of the disc, thereby usinggreater surface area for improvedbraking forces and longer life,improving reliability and loweringmaintenance 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 770 uses 18.00R33 tiresas the standard tire configuration.

• 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.

7

Box-Section Design. The 770 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 dissipate stressin 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 770 features a drop tube/castingdesign and two forged steel mountingsfor hoist cylinders, similar to thedesign as found on the 773.

• 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 773)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 CoordinateMeasuring Machine (CMM) is used toinspect truck frames for consistency inthe manufacturing process. In addition,all critical welds receive testing to verifyweld penetration, which results in framedurability.

8

Rugged Cat structures are the backbone of the 770 off-highway truck’s durability.

Structures

9

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 770 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 to isolatethe operator from sound and vibrationfor a quiet, secure and comfortable 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 payload measurementwhen the truck reaches second gear forincreased accuracy. Standard LED lampsreplace incandescent 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 througha laptop 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 smoother shiftsand 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.

10

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

Engine – Power Train Integration

ET

7

6

5

4

8

2

1

3

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

9

Body-up Shift Limiter. Prevents thetransmission from shifting above a pre-programmed gear without the bodybeing fully lowered. This functionis programmable 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 when operatingnear a shift point and minimizestransmission shifting for increasedcomponent 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 from theengine and transmission, includingtransmission shifting, engine speedand fuel 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 lossesin the power management systemcomponents. The system is operatedby a variable displacement piston pump.This pump primarily provides for thesteering and is independent of the brakeand hoist circuit.

11

Full Hydraulic Service Brake. The 770features 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 secondary accumulator,which also provides back-up braking inthe event of a failure. The accumulatorsautomatically drain pressure aftershutdown, reducing the service time byremoving the need to drain the pressure offthe system and reducing the risk of high-pressure exposure 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, Caterpillarhas eliminated the need for two brakemaster cylinders, two relay valves, anair dryer and the retarder valve (found onARC trucks only) that were associatedwith the 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 dry front and rear oil-cooled, multipledisc brakes are now hydraulicallycontrolled, reducing maintenance costs.

The 770 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 discsand plates 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.

12

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 functionsin the same system. The primary pistonhydraulically actuates both service andretarding functions. The secondarypiston is spring-applied and held inthe disengaged position by hydraulicpressure. If hydraulic system pressuredrops below a specified level, the spring-applied secondary piston automaticallyapplies the brakes.

Parking Brake. The 770 parking brakefunction is provided by the spring-appliedfunction in each of the rear oil-cooleddisc brakes. The 770 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 from1,950-2,200 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 damagingengine overspeeds.

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) toprovide up to 35 percent higher downhilltravel speed and reduce wear on brakecomponents.

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

)

700

2,500

1,500

1,000

500

2,000

13

1 2

4

3

5

8

6

6

7

7

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 groundaccess.

Also, a new service panel on the LHfront of the machine provides:

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

• Transmission, Hoist and SteeringLockout Switch. The 770 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 onthe truck. The operator can use thisfeature to 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•S samplingvalves speed sampling and analysisreliability.

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

Air Filters. Radial seal air filters areeasy to change, reducing time requiredfor air filter maintenance.

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

Fuel Filters. The C15 engine is equippedwith two fuel filters. The primary filterfeatures 10-micron screening, and thesecondary filter is 2-micron.

Oil Filter. The 770 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.

14

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

Serviceability

Electrical Access. The 770 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 ET is beneficial because of howit 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.

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 is reducedby as much as 50 percent with thisstandard on-board engine oil evacuationand pre-lube system. This systemautomatically fills engine oil filters andgalleries, which ensures components arelubricated prior to starting the engine.

Extended Life Brake Discs (Optional).The extended life brake discs are madewith a friction material that provideslonger service life and increasedheat resistance 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.

15

Increased Body Capacities. The 770body capacity at 25.1 m3 (32.9 yd3), hasincreased 3.5 percent over the 769 at24.2 m3 (31.7 yd3). Payloads are basedon 1660 kg per 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 and rigiditythroughout the body. Other new featuresthat further enhance durability of theunderstructure include:

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

• Underbody ribs are increasedfrom seven to nine, enhancingthe underbody structural support.

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

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

• Front wall is 400 BHN andthe thickness is increased from10.2 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 willbuild on the previous strengths andprovide differentiation through sixdifferent body systems. Both dual slopeand flat floor bodies will be available inthe following configurations:

• 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

Steel-Lined Body System. The traditionalsteel-lined system is well understood byusers worldwide. In the new 770 steelbody system, the unique design allowsthe floor and liner to work together toprovide the impact and wear resistance.The Medium Impact, Steel Body Systemoffers optimum combinations of wear andimpact 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 wear resistance,but at an increase in body weight versusthe Medium Impact, Steel Body System.

1 2

16

Cat designed and built for rugged performance and reliability in the toughest hauling 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 life andreduce noise, improving job site workconditions inside and outside the cab.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,a high impact material might be basaltor granite. A medium impact materialmight be mixture of decomposed rock(75 percent rock, 25 percent dirt), whilea low impact material might simplybe dry, 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 threeexhaust routing systems available forthe 770, depending on the customer’srequirements for 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 optionshould be used for rubber-lined bodies orapplications that do not require body 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 CaterpillarDealer can help you manage to targetpayload to maximize equipment use,ensure safe operation, increaseproductivity and lower cost-per-ton.

• Underloading increases costsdue to lost payloads, underutilizesequipment, and increases cost-per-ton.

• Overloading causes excessive wearon vehicle components, such asbrakes, tires and drive train, reducingcomponent life and increasingmaintenance costs and repairs.

Matched Systems. Designed to work asan optimum pass/match system, the 770is 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 770, 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 technicianto change machine settings that aretypically changed via Cat ET throughthe display. Service Mode can be apassword-protected feature to inhibitthe operator from changing thesesettings. Settings that can be changedvia 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 ECMpart number, the software part numberand the software release date.

• Supports Multiple Languages.Available in 47 languages. Please consultwith your salesman as to specific languageavailability.

• Payload Calibration.(if TPMS is installed)

18

Vital machine health and payload data keeps the 770 peforming at peak production levels.

Information and Monitoring Systems

5

4

2

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

9

8

6

1

3

7

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 gear forimproved accuracy.

• System is accurate within ± 5 percentunder normal loading conditionsover a normal shift.

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

Product Link. Using satellite technology,this optional wireless system automaticallyreports information, including vitalmachine health data, to Cat dealersand customers via e-mail or pager.It can streamline diagnostic efforts,downtime, and maintenance schedulingand costs. The standard configuration ofthe 770 is Product Link (Level 1) ready.Product Link PL321SR (Level 3) isoffered as a standard factory-installedattachment.

Equipment Manager (Optional). ProductLink data can be delivered to a customer’sdesktop via this on-line, user-friendlysubscription service. Information isorganized and color-coded accordingto priority. There are four levels ofEquipment Manager service 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.

19

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 and sound,the integral ROPS structure, whichprovides “five-sided protection” for theoperator, is designed as an extension ofthe 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 functions arespring 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™.

20

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 products that helpyou lower costs, enhance productivity andmanage your operation more efficiently.Support goes far beyond parts and service.From the time you select a piece ofCat equipment until the day you rebuild,trade or sell it, the support you get fromyour Cat dealer makes the differencethat 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 a widerange of service plans that will maximizeuptime and return on 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,reduce operating costs, enhance safety,and improve 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 SupportCaterpillar dealers have what it takes to keep trucks productive.

22 770 Off-Highway Truck specifications

Transmission

Forward 1 12.1 km/h 7.5 mphForward 2 16.6 km/h 10.3 mphForward 3 22.5 km/h 14 mphForward 4 30.3 km/h 18.8 mphForward 5 40.9 km/h 25.4 mphForward 6 55.2 km/h 34.3 mphForward 7 74.8 km/h 46.5 mphReverse 15.9 km/h 9.9 mph

• Maximum travel speeds with standard 18.00R33 (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 40 266 cm2 6,235 in2

Brake Standards ISO 3450: 1996

• Target Gross Machine Operating Weight is up to 71 214 kg(157,000 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 18.0 m3 23.6 yd3

Heaped 2:1 (SAE) 25.9 m3 33.9 yd3

Capacity – Flat Floor – 100% fill factor

Struck 17.1 m3 22.4 yd3

Heaped 2:1 (SAE) 25.1 m3 32.9 yd3

Engine

Engine Model Cat® C15 ACERT™Rated Engine Speed 1,800 rpmGross Power – SAE J1995 381 kW 511 hpNet Power – SAE J1349 355 kW 476 hpNet Power – ISO 9249:1997 355 kW 476 hpNet Power – 80/1269/EEC 355 kW 476 hpNumber of Cylinders 6Peak Torque 2320 N•m 1,711 lb-ftBore 137 mm 5.4 inStroke 171 mm 6.7 inDisplacement 15.2 L 927.6 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 71 214 kg 157,000 lbOperating WeightChassis Weight 24 213 kg 53,380 lbBody Weight 10 029 kg 22,110 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 36.3 tonnes 40 tonsTop Speed – Loaded 74.8 km/h 46.5 mphBody Capacity – SAE 2:1 25.1 m3 32.9 yd3

Target Payload Capacity 36.3 tonnes 40 tons

• Refer to the Caterpillar 10/10/20 Overload Policy for maximumgross machine weight limitations.

• Capacity with flat floor body.

23770 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 40º

• Target Gross Machine Operating Weight is 71 214 kg(157,000 lb).

• Turning circle as measured from the outside of the tire is18.1 m (59.4 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 8.9º

Service Refill Capacities

Fuel Tank 530 L 140 galCooling System 114 L 30 galCrankcase 34 L 9 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 18.00R33 (E4)

• Productive capabilites of the 770 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.

10

20

19

17

13

14

18

12

2

3

1

4

5 6

78

9

11

16

15

47.5°

DimensionsAll dimensions are approximate.

1 Height to Top of ROPS 3911 mm 12 ft 10 in2 Overall Body Length 8185 mm 26 ft 10 in3 Inside Body Length 5549 mm 18 ft 3 in4 Overall Length 9020 mm 29 ft 7 in5 Wheelbase 3960 mm 13 ft6 Rear Axle to Tail 2595 mm 8 ft 6 in7 Ground Clearance 680 mm 2 ft 3 in8 Dump Clearance 498 mm 1 ft 7 in9 Loading Height – Empty 3158 mm 10 ft 4 in10 Inside Body Depth – Max. 1326 mm 4 ft 5 in

11 Overall Height – Body Raised 8280 mm 27 ft 2 in12 Operating Width 4780 mm 15 ft 8 in13 Centerline Front Tire Width 3110 mm 10 ft 3 in14 Engine Guard Clearance 673 mm 2 ft 3 in15 Outside Body Width 3932 mm 12 ft 10 in16 Inside Body Width 3698 mm 12 ft 2 in17 Front Canopy Height 4195 mm 13 ft 9 in18 Rear Axle Clearance 508 mm 1 ft 9 in19 Centerline Rear Dual Tire Width 2536 mm 8 ft 4 in20 Overall Tire Width 3693 mm 12 ft 2 in



Flat FloorLow Impact Medium Impact High Impact Heavy Duty High Impact Heavy DutySteel Body Steel Body Steel Body Steel Body Rubber Body Rubber Body

System System System System System System8 mm (0.315 in) 16 mm (0.630 in) 20 mm (0.787 in) 25 mm (1.0 in) 102 mm (4.0 in) 102 mm (4.0 in)

Target Gross Machine Weight* kg (lb) 71 214 (157,000) 71 214 (157,000) 71 214 (157,000) 71 214 (157,000) 71 214 (157,000) 71 214 (157,000)Empty Chassis Weight* kg (lb) 24 213 (53,380) 24 213 (53,380) 24 213 (53,380) 24 213 (53,380) 24 213 (53,380) 24 213 (53,380)Body System Weight kg (lb) 8367 (18,446) 10 029 (22,110) 10 524 (23,202) 11 474 (25,296) 10 757 (23,714) 11 113 (24,499)Empty Machine Weight kg (lb) 32 579 (71,826) 34 242 (75,490) 34 737 (76,582) 35 687 (78,676) 34 969 (77,094) 35 325 (77,879)AttachmentsFuel Tank Size L (gal) 529 (140) 529 (140) 529 (140) 529 (140) 529 (140) 529 (140)Fuel Tank – 100% fill kg (lb) 446 (983) 446 (983) 446 (983) 446 (983) 446 (983) 446 (983)Empty Operating Weight** kg (lb) 33 026 (72,809) 34 688 (76,473) 35 183 (77,565) 36 133 (79,659) 35 415 (78,077) 35 771 (78,862)Target Payload* kg (lb) 38 190 (84,191) 36 526 (80,527) 36 031 (79,435) 35 081 (77,341) 35 799 (78,923) 35 443 (78,138)Target Payload* tonnes (tons) 38.2 (42.1) 36.6 (40.3) 36.0 (39.7) 35.1 (38.7) 35.8 (39.5) 35.4 (39.1)

Dual SlopeLow Impact Medium Impact High Impact Heavy Duty High Impact Heavy DutySteel Body Steel Body Steel Body Steel Body Rubber Body Rubber Body

System System System System System System8 mm (0.315 in) 16 mm (0.630 in) 20 mm (0.787 in) 25 mm (1.0 in) 102 mm (4.0 in) 102 mm (4.0 in)

Target Gross Machine Weight* kg (lb) 71 214 (157,000) 71 214 (157,000) 71 214 (157,000) 71 214 (157,000) 71 214 (157,000) 71 214 (157,000)Empty Chassis Weight* kg (lb) 24 213 (53,380) 24 213 (53,380) 24 213 (53,380) 24 213 (53,380) 24 213 (53,380) 24 213 (53,380)Body System Weight kg (lb) 8362 (18,436) 10 019 (22,088) 10 518 (23,188) 11 474 (25,295) 10 836 (23,889) 11 159 (24,602)Empty Machine Weight kg (lb) 32 930 (71,816) 34 232 (75,468) 34 731 (76,568) 35 686 (78,675) 35 049 (77,269) 35 372 (77,982)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) 33 021 (72,799) 34 688 (76,451) 35 177 (77,551) 36 132 (79,658) 35 495 (78,252) 35 817 (78,965)Target Payload* kg (lb) 38 193 (84,201) 36 536 (80,549) 36 038 (79,449) 35 082 (77,342) 35 720 (78,748) 35 396 (78,035)Target Payload* tonnes (tons) 38.2 (42.1) 36.6 (40.3) 36.0 (39.7) 35.1 (38.7) 35.7 (39.4) 35.4 (39.0)

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

Weight/Payload Calculation(Example)


0 5 10 15 20 25 30 35 40 450

10

20

30

40

50

60

Rim

pu

ll

kg x1000

lb x1000

km/h

mph

kg x 1000

LE

Tota

l R

esis

tan

ce

(Gra

de P

lus R

ollin

g)

Gross Weight

lb x 1000

25%

5%

10%

15%

20%

30%

Speed

0 50 100 150

0 10 20 30 40 50 60 70 80

0 10 20 30 40 50 60 70 805 15 25 35 45 55 65 75

0

5

10

15

20

25

30

1A

2

3

45

67

1B

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 71 214 kg (157,000 lb)


0 5 10 15 20 25 30 35 40 45

km/h

mph

kg x 1000

LE

Eff

ecti

ve G

rad

e

(Gra

de M

inu

s R

ollin

g R

esis

tan

ce)

Gross Weight

lb x 1000

25%

5%

10%

15%

20%

30%

Speed

Continuous Grade Length

0 5025 10075 125 150 175

0 10 20 30 40 50 60 70 80

0 10 20 30 40 50 60 70 805 15 25 35 45 55 65 75

2

3

4

5

6

7

1

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 71 214 kg (157,000 lb)

cooling capacity. The following charts are based on theseconditions: 32° C (90° F) ambient temperature, at sea level,with 18.00R33 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


0 5 10 15 20 25 30 35 40 45

km/h

mph

kg x 1000

LE

Eff

ecti

ve G

rad

e

(Gra

de M

inu

s R

ollin

g R

esis

tan

ce)

Gross Weight

lb x 1000

25%

5%

10%

15%

20%

30%

Speed

Grade Distance – 600 m (2,000 ft)

0 5025 10075 125 150 175

0 10 20 30 40 50 60 70 80

0 10 20 30 40 50 60 70 805 15 25 35 45 55 65 75

2

3

4

5

67

1

0 5 10 15 20 25 30 35 40 45

km/h

mph

kg x 1000

LE

Eff

ecti

ve

Gra

de

(Gra

de M

inu

s R

oll

ing

Resis

tan

ce

)

Gross Weight

lb x 1000

25%

5%

10%

15%

20%

30%

Speed


0 5025 10075 125 150 175

0 10 20 30 40 50 60 70 80

0 10 20 30 40 50 60 70 805 15 25 35 45 55 65 75

2

3

4

5

67

1


With ARC Only



L – Target Gross Machine Operating

Weight 71 214 kg (157,000 lb)

With ARC Only




Weight 71 214 kg (157,000 lb)


0 5 10 15 20 25 30 35 40 45

km/h

mph

kg x 1000

LE

Eff

ecti

ve G

rad

e

(Gra

de M

inu

s R

ollin

g R

esis

tan

ce)

Gross Weight

lb x 1000

25%

5%

10%

15%

20%

30%

Speed


0 5025 10075 125 150 175

0 10 20 30 40 50 60 70 80

0 10 20 30 40 50 60 70 805 15 25 35 45 55 65 75

2

3

4

5

7

1

6

0 5 10 15 20 25 30 35 40 45

km/h

mph

kg x 1000

LE

Eff

ecti

ve

Gra

de

(Gra

de M

inu

s R

oll

ing

Resis

tan

ce

)

Gross Weight

lb x 1000

25%

5%

10%

15%

20%

30%

Speed


0 5025 10075 125 150 175

0 10 20 30 40 50 60 70 80

0 10 20 30 40 50 60 70 805 15 25 35 45 55 65 75

2

3

4

5

67

1


With ARC Only




Weight 71 214 kg (157,000 lb)

With ARC Only




Weight 71 214 kg (157,000 lb)

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

POWER TRAINCat C15 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 Caterpillar 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 Caterpillar dealer for details.

Fast Fill Fuel SystemFast Fill Fuel System Non-PressurizingFuel Heater KitIntegrated Brake ControlMufflerSound Suppression PackageSpare Rim 330 mm (13 in)Traction 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

R

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

© 2007 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 Caterpillar dealer for available options.

CAT, CATERPILLAR, SAFETY.CAT.COM, their respective logos, ADEM, Duo-Cone, Quik Evac, S•O•S,“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.

AEHQ5723-02 (12-07)

Replaces AEHQ5723-01

770 Off-Highway Truck

specalog for 770 off-highway truck, aehq5723-02

Documents