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EngineEngine Model Cat® 3412E EngineGross Power – SAE J1995 509 kW 682 hpFlywheel Power 485 kW 650 hp
Operating SpecificationsNominal Payload Capacity 54.1 tonnes 60 tons
Weights – ApproximateTarget Gross Machine 99 340 kg 219,007 lbOperating Weight
773DOff-Highway Truck
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773D Off-Highway TruckEngineered for performance, designed for comfort, built to last.
Time proven iron and moderntechnology combine to provide ahighly productive, durable, reliableoff-highway truck, focused on ourcustomers’ greatest need...lowestcost-per-ton.
Truck Body
The 773D offers a dual-slope body tomeet user applications. This incorporatestime-proven box beam and full-lengthstringer design for extended life. pg. 11
Structures
Caterpillar truck frames are built toresist the most severe twisting, highimpact applications. Mild steel providesflexibility, durability and resistance toimpact loads even in cold climates.The frame incorporates 21 castingsand two forgings in high-stress areas,providing two-and-one-half to threetimes the strength of equivalent-sizedfabricated structures. pg. 10
Engine/Power Train Integration
The Caterpillar® Data Link Systemelectronically combines engine,transmission, brake and operationalinformation to optimize overall truckperformance. The Electronic Technician(ET) accesses stored diagnostic data,significantly reducing downtime. pg. 6
Power Train – Transmission
The power train is designed and built byCaterpillar, starting with the high torquerise, electronic Caterpillar® 3412E DieselEngine, through the seven-speed powershift transmission. This assures thehighest standards for quality, performanceand efficiency. Total design controlhelps assure these individual componentsperform together as an efficient unit. pg. 5
Power Train – Engine
The twelve-cylinder, turbocharged andaftercooled engine is built for power,reliability, economy and with theHEUI™ fuel system, meets U.S. EPATier 1 emission standards. pg. 4
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Serviceability/Total Customer Support
Simplified service and maintenancefeatures combined with improvedservice access and on-board diagnosticsare designed to reduce downtime.Caterpillar® dealers with experttechnicians offer a wide range of serviceplans that will maximize uptime andreturn on your investment, and provideunmatched product support, anywherein the world. pg. 14
Systems/Applications
The 773D is the industry leader workingworldwide in a variety of conditionsand applications. pg. 12
Operator’s Station
The 773D operator’s station is designedfor total machine control in a comfortableand productive environment. Controlsand gauges are positioned to maximizeproductivity and comfort. The cabincludes air suspension seat and advancedelectronic monitoring system. Adjustabletelescoping steering column, electricwipers, window and body controls reduceoperator effort and simplify control. pg. 13
Traction Control System (TCS)(Optional)
Electronically controls wheel slippagefor improved performance. pg. 9
Automatic Retarder Control (ARC)(Optional)
The ARC electronically controlsbraking on grade, enhancing truckperformance and productivity whileimproving operator confidence. pg. 8
Oil-Cooled, Rear Disc Brakes
Caterpillar oil-cooled, multiple discbrakes offer exceptional, fade-resistantbraking and retarding. The optionalAutomatic Retarder Control (ARC) andTraction Control System (TCS) use theoil-cooled rear brakes to enhance truckperformance and productivity. pg. 7
Engine. The Cat® 3412E Diesel Engineis a four-stroke design and uses long,effective power strokes for more completefuel combustion and optimum efficiency.The 3412E is designed with highdisplacement and a low speed rating forlong hours of service between scheduledoverhauls and lower operating costs.
High Torque Rise. The 19 percenttorque rise provides high lugging forceduring acceleration and less down-shifting on grade or in rough underfootconditions. The torque rise effectivelymatches the transmission shift pointsto provide maximum efficiency andfaster cycle times.
Hydraulic Electronic Unit Injector (HEUI).HEUI is a proven high-pressure, directinjection fuel system. This systemelectronically monitors operator andmachine inputs to optimize engineperformance, HEUI is unique in its abilityto independently control injectionpressure over the entire engine operatingrange. This allows complete controlover injection timing, duration, rateand pressure for maximum performanceand efficiency.
• Modifies the heat releasecharacteristics of the combustionprocess for significant decreasesin sound and emission levels.
• Reduces specific fuel consumptionby up to five percent.
• Exhaust smoke is significantlyreduced (by as much as 75 percent)through precise, electronic controlof fueling limits and injection timing.
• Improved reliability and durabilitythrough elimination of the governor,reduction in mechanical linkagesand incorporation of electronicprotection strategies.
Electronic Control Module (ECM).ECM monitors key functions andlogs critical indicators. The ElectronicTechnician can access this diagnosticinformation for easier maintenanceand repair.
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Power Train – EngineThe twelve-cylinder, turbocharged and aftercooled engine is built for power, reliability,economy and with the HEUI™ fuel system, meets U.S. EPA Tier 1 emission standards.
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1 Valve Rotators
2 Turbocharger
3 Stellite-Faced Valves
4 Steel-Backed, Copper-Bonded Bearings
5 Oil Cooler
6 Forged Crankshaft
7 Aftercooler
8 Adjustment-Free Fuel Injection Pumps
9 Hydraulic Injectors
10 Aluminum-Alloy Pistons
11 Full-Length, Water-Cooled Cylinder Liners
Transmission. The Cat seven-speedpower shift transmission, matched withthe direct injection Cat 3412E DieselEngine, provides constant power overa wide range of operating speeds.
1) Lock-up Torque Converter. The lock-uptorque converter combines the maximumrimpull and cushioned shifting of torqueconverter drive with the efficiency andperformance of direct drive.
• It engages at approximately 6.9 km/h(4.3 mph), delivering more powerto the wheels.
• The lock-up clutch will quicklyrelease and re-engage during shifts,maintaining power windup, improvingtransmission life and increasingoperator comfort.
2) Planetary Power Shift Transmission.The seven-speed, planetary power shifttransmission utilizes a modulatingpressure valve to regulate clutchpressure rise and fall to ease clutchengagement. This reduces shock loadson power train components.
• Large diameter clutches and robustplanetary gears and bearings.
• Patented rotating clutch pressureseals minimize drag losses andimprove reliability.
• 35 percent gear splits between allgears match Cat engine design foroptimum use of engine power withminimized shifting and torqueconverter use.
3) Final Drive. Final drive and differentialtorque multiplication of 17.48:1 furtherreduces stress on the drive train.
Axles. Full floating axles are shot peenedto relieve internal stresses and increasedurability. Rolled splines also provideincreased service life.
Wheels and Rims. Cast rear wheelsand Cat center-mount rims are mountedusing studs and nuts to minimizemaintenance and maximize durability.
4) Transmission and Torque Converter.The transmission and torque converterhave independent sumps, whicheliminates cross contamination.
Transmission Chassis Controller (TCC).TCC uses electronically transferredengine rpm data to execute shifts atpreset points for optimum performanceand efficiency. This integration allows:
• Programmable top gear limit.
• Control throttle shifting.
• Directional shift management.
• Neutral coast inhibitor.
• Economy shift mode.
Power Train Integration. Caterpillarpower train’s integration providesincreased component life andoperator comfort.
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Power Train – TransmissionThe Caterpillar ® power train gets the job done smoothly and quickly.
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Integration. The electronic integrationsystem designed by Caterpillar optimizesoverall power train performance,reliability and component life forreduced power train operating cost.
1) Electronic Technician
2) Cat Data Link System
3) Engine Control Module
4) Engine
5) Transmission Chassis Controller
6) Automatic Retarder Control,Traction Control System andIntegrated Brake Controller
7) Caterpillar Electronic MonitoringSystem
8) Transmission
9) Oil-Cooled Brakes
Cat Data Link. The Cat Data Linkelectronically integrates the machine’scomputer systems, which allowscommunications and provides thefollowing benefits:
• Controlled Throttle Shifting. Enginerpm is regulated during a shift to reducedriveline stress for smoother shifts andextended component life.
• Economy Shift Mode. Modifies enginemaps, resulting in improved fuelconsumption.
• Directional Shift Management.Regulates engine speed during directionalshifts to prevent damage caused by highspeed directional changes.
• Elevated Neutral Coast Inhibitor.Helps prevent the transmission fromshifting to neutral at speeds above6.5 km/h (4 mph).
• Body Up-Shift Inhibitor. Helps preventthe transmission from shifting above apre-programmed gear without the bodyfully lowered.
• Event Memory. Records machinemanagement data that can be accessedusing the Electronic Technician.Recorded information includes:
• Shift histograms.
• Operator-induced events.
• Lock-up clutch counter.
• Machine overspeed.
• Transmission overspeed.
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Engine/Power Train IntegrationCombining the electronic Engine Control Module (ECM) with the Caterpillar TransmissionChassis Controller (TCC) allows critical power train components to work more intelligently.
Brakes. Caterpillar forced oil-cooled,multiple disc brakes are continuouslycooled for exceptional, fade-resistantbraking and retarding. The optionalARC and TCS utilize the oil-cooled rearbrakes to enhance truck performanceand increase productivity.
Oil-Cooled Disc Brakes. Designed andbuilt for reliable, adjustment-freeoperation providing superior performanceand service life in comparison to shoe-type and dry-disc systems.
Oil Film. Prevents direct contact betweenthe discs. Absorbing the braking forcesby shearing oil and carrying heat away,this design extends brake life.
Pistons. A Caterpillar patented,two-piston design combines the service,secondary, parking brake and retardingfunctions.
• The primary piston hydraulicallyactuates both service and retardingfunctions.
• The secondary piston is springapplied and is held in the disengagedposition by hydraulic pressure.
• If hydraulic system pressure dropsbelow a certain level, the springapplied secondary pistonautomatically applies the brakes.
Retarding. The Cat retarding systemhas an intermittent rating of 1119 kW(1,500 hp) and a continuous rating of526 kW (705 hp).
• When retarding, the engine runsagainst compression on downhillhauls, resulting in minimal fuel burn.
• Retarding forces and heat are absorbedthrough the oil. The retarding systemgenerates lower drive line stressesthan drive line retarding systems.
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Oil-Cooled, Rear Disc BrakesReliable braking lets the operator concentrate on the haul road.
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1 Parking/Secondary Piston 2 Service/Retarding Piston 3 Friction Discs 4 Steel Plates 5 Actuating Springs 6 Cooling Oil In 7 Cooling Oil Out
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ARC Benefits. Include:
• Increased operating efficiencywith faster downhill speeds.By maintaining consistently higherengine speeds, average truck speedwill be higher than a manuallycontrolled truck.
• Excellent controllability and reducedoperator effort. Automatic brakemodulation provides a smoother rideover manual modulation, allowingthe operator to focus more on truckoperation down the haul road.
• Improved component life, optimizedsystem cooling capability andreduced torque fluctuations resultfrom the precision of ARC.
• Faster troubleshooting and diagnosiswith self-diagnostic capability andthe ability to communicate with ETthrough the Cat Data Link System.
• Operator awareness through electronicintegration and the CEMS, alertingthe operator to overspeed conditionsand critical machine functions.
Automatic Retarder Control (ARC).The ARC electronically controls brakingon grade to maintain approximately2,230 rpm (engine rpm is adjustablefrom 2,150-2,300 rpm in increments of10 rpm). ARC is deactivated when theoperator applies the brakes or throttle.
Engine Overspeed Protection. With theaccelerator depressed and/or ARCturned off, ARC will automaticallyactivate at 2,475 rpm to help avoidpotentially destructive and often costlyengine overspeeds.
ARC Operating Efficiency Advantages
*
10Time (Seconds)
20 30 40 50 60
Automatic Retarder Control(Maintains Engine rpm between 2160-2300)
Manual Retarder Control(Wide Variation in Engine rpm)
* Optimum Engine rpm
Engi
ne S
peed
(rpm
)
700
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Automatic Retarder Control (ARC) (Optional)Electronically controls braking on grades for improved engine and brake component life.
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TCSARC 1 Service Brake Sensor2 Engine Sensor3 ARC4 ARC Switch5 Brakes6 Service Brakes7 Axle Speed Sensor8 TCS
Integrated Braking Control (IBC)(Optional). Caterpillar offers IBC(optional) combining ARC and TCSinto one electronic control.
Traction Control System. Monitorswheel slip so if the wheel slip exceedsthe set limit, the oil-cooled disc brakesare automatically applied to slow thespinning wheel.
Operator Awareness. Provides operatorawareness through an on-dash indicator,signifying TCS is engaged.
Differential Action. Utilizes normaldifferential action to provide superiormaneuvering in poor underfootconditions.
• Reduces tire scuffing as comparedto positive lock differentials usedon other systems.
Torque. Divides torque equally to reducestress created on final drives and axleswhen torque is transferred to one side.
System Back-up. Maintains the back-updesign. Should the sensors fail, normaldifferential action is still available tomaintain control and steering.
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Traction Control System (TCS) (Optional)Electronically controls wheel slippage for improved performance.
Box-Section Design. The 773D frameuses a box-section design, incorporating21 castings in high-stress areas, withdeep-penetrating and continuous wrap-around welding. Mild steel is usedthroughout.
• Mild steel provides flexibility,durability, and resistance to impactloads even in cold climates.
Castings. Castings have large radii withinternal reinforcing ribs to dissipatestress. Castings move welds to lowerstress areas and provide two to threetimes the strength of equivalent-sizedfabricated structures.
Frame Features. The 773D frameprovides for ease of serviceability.
• The box-section frame allows simpleaccess to power train components.This “open design” reduces overallremoval and installation time,lowering repair costs.
• Transmission access is excellentunder the raised and pinned body.
• Repairs can be made withoutpreheating in ambient temperaturesabove 16° C (60° F) using readilyavailable welding supplies.
Rollover Protection Structure (ROPS).ROPS attaches securely to four castingswelded into the frame.
Suspension System. Designed todissipate haul road and loading impactsfor extended frame life.
• Four, independent, variable-rebound,suspension cylinders absorb shocks.
• Rear cylinders allow axle oscillationand absorb the bending and twistingstresses.
• Front cylinders, mounted to theframe, serve as steering kingpins,providing excellent maneuverabilityand reduced maintenance. Casterand camber are preset.
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StructuresThe backbone of the Cat truck.
Design. Designed to handle a variety ofmaterial densities. Maximum payloadis reached in three to five passes froma matched Cat loader in 1700 kg/m3
(2,900 lb/yd3) material and higher.
Sidewall and Floor Junctions. Joined byfive-sided beams to resist impact loadingand sustained hauling stresses.
Box-Section Beams. Offer increaseddurability in the floor, sidewalls, toprail, corner and cab canopy areas.
400 Brinell Steel. Wear surfaces provideexcellent wear resistance and are easilywelded without preheating procedures.
Two-Stage Hoist Cylinders. Provide fastdump cycle times:
• Raise – 9.5 seconds.
• Lower – 12.5 seconds.
Standard Body. Comes exhaust heatedwith options including a full-timemuffler or exhaust diverter.
Dual Slope Body. The dual-slope bodyoffers the lowest cost-per-ton optionin most construction and miningapplications.
• The dual-slope body performsefficiently under most haul roadconditions, but its strength comesfrom higher levels of productionin sites with rough haul roads andsteeper grades.
• Body floor construction uses an8° “V” bottom for increased loadretention, a low center of gravity,and reduced shock loading. It alsoaids in centering the load.
• An 18° ducktail and 9° forwardbody slope retains the load ongrades up to 15 percent and higher.This design also helps maintainproper load distribution.
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Truck BodyCaterpillar builds rugged, durable bodies to perform in the toughest mining applications.
Machine Configuration Options.The 773D is the industry leader workingworldwide in a variety of conditionsand applications. By offering a varietyof machine configuration options,Caterpillar helps meet customer needs.
Tire Options. Representing various tiremanufacturers, Caterpillar offers afull line of tire options to maximizeperformance and life for specificapplications.
Attachments. Attachments give thecustomer options to tailor trucks forspecific application requirements,including:
• Truck Production ManagementSystem.
• Automatic Retarder Control.
• Traction Control System.
• Exhaust Diverter.
System Approach. The Caterpillarsystem approach means increasedefficiencies through “common design.”Haul trucks, loaders, excavators, tractors,engines for generator sets and pumps –all designed by Caterpillar – usecommon components, parts and design.This commonality reduces customerparts stock, improves parts availability,reduces training/maintenance andimproves diagnostics. This systemapproach adds up to lower cost-per-ton.Dealer support is available to addresscustomer needs regardless of thecomponent.
Caterpillar Product Analysis Team(PAT). The Caterpillar ProductionAnalysis Team (PAT) and Caterpillarsoftware programs can assist customerswith detailed, application evaluation.
Loader Match. Designed to work as partof a system, the 773D is best matched tothe following Caterpillar loaders:
• 988F – five pass/match.
• 990 – three pass/match.
Systems/ApplicationsThe 773D is designed for versatility.
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Operator’s Station. The 773D operatorstation is rated highly by operators.Everything needed for top performanceis at the operator’s finger tips.
1) Wraparound Dash Panel. Provided inan easy line-of-sight arrangement, usingLED backlit rocker switches.
2) Caterpillar Contour Series AirSuspension Seat. The Caterpillar ContourSeries Air Suspension seat is standard.The seat is fully adjustable and includesan adjustable right-hand armrest.
3) Tilt/Telescoping Steering Wheel.Improves comfort and control.
• New steering system reducesoperator effort by 55 percent.
• Enhanced turn signal lever with highbeam actuator and electric windshieldwiper controls.
• Ergonomically designedretarder lever.
4) Transmission Console. Includes LEDbacklit gear numbers and ergonomicshift knob.
5) Visibility. Exceptional all-aroundvisibility reduces fatigue and improvesproductivity.
6) Integral, Sound-SuppressedROPS/FOPS Cab. The ROPS/FOPS Cabis resiliently mounted, providing aquiet, protected work environment.
• Radio-ready cab with speakers,wiring harness, antenna andmounting bracket.
7) Front Brake Cut-Out Switch.Increases front brake component life.
8) Large Storage Compartment. Largestorage compartment 0.10 m3 (3.5 ft3)is located under the trainer’s seat.
9) Trainer’s Seat. Increased hip/shoulderroom, back rest and retractable seat belt.
10) Caterpillar Electronic MonitoringSystem (CEMS). CEMS provides criticaldata. The system features three separatedisplays:
• A four-gauge cluster with coolanttemperature, oil temperature, brakeair pressure, fuel level.
• Tachometer, digitalspeedometer/actual gear indicator.
• Message center module.
11) Optional Heater and Air Conditioner.Includes a four-speed fan and nine vents.
12) Foot Pedals. Ergonomicallydesigned foot pedals for increasedoperator comfort.
• Secondary brake moved to floor.
13) Electric Power Windows. Simplifyoperations.
14) Electrohydraulic Hoist Lever.Finger tip actuated and provideslow-impact, body-down snubbing.
15) Truck Production ManagementSystem (TPMS) (optional). The optionalTPMS provides payload and cycletime data.
• Cat developed technology utilizesstrut pressure sensors and an on-boardmicroprocessor to determinepayload weight.
• Accurate under normal loadingconditions to within ±5 percent overa normal operating shift.
• Delivers consistent accuratepayloads and improves efficiencyby minimizing overloading andunderloading.
• On-board computer stores1,400 cycles for further analysis of:payload weight, cycle segment times,cycle segment distances and actualclock time and date of each cycle.
• External lights signal loading tooloperator when payload is reached.
• Internal troubleshooting and faultrecording for easier maintenance.
Operator’s StationControl ease and comfort maximizes productivity.
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Machine Platform. Provides access toair tanks, brake master cylinder, andmake-up tank; engine oil level; airfilters; steering hydraulic tank; andbattery compartment.
Ground-Level Battery DisconnectSwitch. Facilitates safe, convenientservicing and maintenance.
On-Board Diagnostics. With CEMS,provides the machine operator witha three-category warning system andquick access to stored diagnostic data.
Off-Board Diagnostics. With ET, allowsservice technicians access to storeddiagnostics data reducing down timeand lowering operating costs.
• ET stores engine parameterinformation such as timing,throttle position and fuel flow.
• Transmission data is availablethrough ET via access to theCat Data Link System.
Radial Seal Filters. Easy to change,reducing air filter maintenance times.
Vertical Spin-On Filters. Simplifiedservicing.
Quick Coupler Pressure Taps. Quickcoupler pressure taps, located in allhydraulic systems, provide clear, quickpressure checks. S•O•SSM Oil and CoolantSampling Valves make oil samplingquick, clean, and easy.
Sealed Electrical Connectors. Lockoutdust and moisture. The color-codingfor wires is standard for the entireCat product line.
Machine Management Service.Cat Dealers help manage equipmentinvestments with:
• Vehicle systems analysis to helpmatch the right machine to the job.
• Preventative maintenance programs.
• S•O•S Fluid Analysis and TechnicalAnalysis programs.
• Repair option analysis.
• Training for operators andmechanics.
• TPMS data analysis.
Parts Availability. The Caterpillarworldwide computer network locatesparts instantly to minimize machinedowntime.
Literature Support. Caterpillar manualsare easy to use and help provide the fullvalue of an equipment investment.
Serviceability/Total Customer SupportPurchase of a Caterpillar machine includes a total commitment to customer support.
15773D Off-Highway Truck specifications
Transmission
Forward 1 9.9 km/h 6.2 mphForward 2 13.9 km/h 8.6 mphForward 3 18.8 km/h 11.6 mphForward 4 25.2 km/h 15.6 mphForward 5 34.1 km/h 21.1 mphForward 6 45.9 km/h 28.5 mphForward 7 62.2 km/h 38.6 mphReverse 13.1 km/h 8.1 mph
• Maximum travel speeds with standard 24.00R35 (E4) tires.
Final Drives
Differential Ratio 3.64:1Planetary Ratio 4.80:1Total Reduction Ratio 17.48:1
Brakes
Brake Surface – Front 1395 cm2 216 in2
Brake Surface – Rear 61 269 cm2 9,496 in2
Brake Standards ISO 3450: 1996
• Meets the SAE J1473 OCT90, ISO 3450-1985 standards up to99 340 kg (219,007 lb) gross operating weight.
Body Hoists
Pump Flow – High Idle 560 L/min 148 gal/minRelief Valve Setting – Raise 17 225 kPa 2,500 psiRelief Valve Setting – Lower 3450 kPa 500 psiBody Raise Time – High Idle 9.5 SecondsBody Lower Time – Float 12.5 SecondsBody Power Down – High Idle 12.5 Seconds
Capacity – Dual Slope – 100% fill factor
Struck 26.6 m3 34.8 yd3
Heaped 2:1 (SAE) 35.2 m3 46 yd3
Weight Distributions – Approximate
Front Axle – Empty 47.3%Front Axle – Loaded 33.3%Rear Axle – Empty 52.7%Rear Axle – Loaded 66.7%
Engine
Engine Model Cat® 3412E EngineRated Engine Speed 2,000 rpmGross Power – SAE J1995 509 kW 682 hpNet Power – SAE J1349 480 kW 643 hpNet Power – Caterpillar 485 kW 650 hpFlywheel Power 485 kW 650 hpNet Power – ISO 9249 485 kW 650 hpNet Power – 80/1269/EEC 485 kW 650 hpNumber of Cylinders 12Net Torque 2314 N•m 1,707 lbfBore 137 mm 5.4 inStroke 152 mm 6 inDisplacement 27 L 1,649 in3
Power rating conditions:
• Based on standard air conditions of 25° C (77° F) and 99 kPa(29.32 Hg) dry barometer.
• Used 35° C (95° F) API gravity fuel having an LHV of42 780 kJ/kg (18,390 BTU/lb) when used at 30° C (86° F)[ref. a fuel density of 838.9 g/L (7.001 lb/U.S. gal)].
• Net power advertised is the power available at the flywheelwhen the engine is equipped with fan, air cleaner, mufflerand alternator.
• No derating required up to 2300 m (7,500 ft) altitude.
Weights – Approximate
Target Gross Machine 99 340 kg 219,007 lbOperating WeightOperating Weight – Empty 39 500 kg 87,082 lbChassis Weight 30 200 kg 66,580 lbBody Weight 9300 kg 20,503 lb
• Chassis weight with 10% fuel, hoist, body mounting group,rims and tires.
• Body weight varies depending on how body is equipped.
Operating Specifications
Nominal Payload Capacity 54.1 tonnes 60 tonsTop Speed – Loaded 62.2 km/h 38.6 mphBody Capacity – SAE 2:1 35.2 m3 46 yd3
• Refer to the Caterpillar 10/10/20 Payload Guidelines formaximum gross machine weight limitations.
• Capacity with dual slope body.
Sound
Sound Standards
• The operator sound pressure level measured according towork cycle procedures specified in ANSI/SAE J1166 MAY90is 78 dB(A) for cab offered by Caterpillar, when properlyinstalled and maintained and tested with doors andwindows closed.
• Hearing protection may be needed when operating withan open operator station and cab (when not properlymaintained or doors/windows open) for extended periodsor in a noisy environment.
Steering
Steering Standards SAE J1511 FEB94ISO 5010:1992
Steer Angle 31ºTurning Diameter Front Wheel 22 m 72 ft 3 inTrackTurning Circle Clearance 25 m 82 ftDiameter
• Target Gross Machine Operating Weight is 99 340 kg(219,007 lb).
Dimensions
• Dimension listed reflect the Dual Slope Body System.
Suspension
Effective Cylinder Stroke – Front 209 mm 8.2 inEffective Cylinder Stroke – Rear 149 mm 5.9 inRear Axle Oscillation 8º
Service Refill Capacities
Fuel Tank 700 L 185 galCooling System 137 L 36 galEngine Oil With Filter 76 L 20 galDifferentials and Final Drives 140 L 37 galSteering Tank 34 L 9 galSteering System (Includes Tank) 58 L 15.3 galTorque Converter/ 53 L 14 galTransmission SumpBrake/Hoist Hydraulic Tank 133 L 35 gal
Tires
Standard Tire 24.00R35 (E4)
• Productive capabilities of the 773D truck are such that,under certain job conditions, TKPH (TMPH) capabilities ofstandard or optional tires could be exceeded and, therefore,limit production.
• Caterpillar recommends the customer evaluate all jobconditions and consult the tire manufacturer for propertire selection.
ROPS
ROPS/FOPS Standards SAE J1040 MAY94,ISO 3741:1994
• 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.
16 773D Off-Highway Truck specifications
17773D Off-Highway Truck specifications
DimensionsAll dimensions are approximate.
A 8535 mm 28'0"B 1805 mm 5'11"C 6400 mm 21'0"D 8787 mm 28'10"E 3773 mm 12'5"F 676 mm 2'2"G 566 mm 1'11"H 2782 mm 9'1"I 4393 mm 14'5"J 4350 mm 14'4"
Dual-slope
*5076 mm(16'8")
4316 mm(14'2")
4040 mm(13'5")
3275 mm(10'9")
667 mm(26")
empty 3966 mm(13'0")
3658 mm(12'0")
4398 mm(14'5")
3910 mm(12'10")
4457 mm(14'8")
2927 mm(9'7") 3785 mm
(12'5")
591 mm(23")
empty
Jloaded
Iempty
60°
B
C
9120mm (29'11")
4191 mm(13'9") H
480 mm(19")
4000 mm(13'2")empty
3900 mm(12'10")loaded
9° DS12° FF empty
E
Fempty
Gloaded
DA
Dual Slope Dual Slope w/LinerCHASSISEmpty Chassis Weight +10% fuel – kg (lb) 30 200 (66,579) 30 200 (66,579)
Fuel Correction (90% � 185 gal � 7 lb/gal) – kg (lb) 529 (1,166) 529 (1,166)
Debris Allowance (4% of empty chassis weight) – kg (lb) +1208 (+2,663) + 1208 (+2,663)
Total Chassis Weight – kg (lb) 31 937 (70,408) 31 937 (70,408)
BODYBody Weight – kg (lb) 9300 (20,503) 9300 (20,503)
Body Attachment Weights – kg (lb) 3965 (8,741)
Total Body Weight – kg (lb) +9300 (+20,503) +13 265 (+29,244)
Total Empty Operating Weight – kg (lb) 41 237 (90,911) 45 202 (99,652)
Target Payload – kg (lb) 58 103 (128,094) 54 138 (119,353)Gross Machine Operating Weights – kg (lb) 99 340 (219,005) 99 340 (219,005)
* Refer to Caterpillar’s 10/10/20 Payload Policy for Quarry and Construction Trucks
Weight/Payload Calculation*(Example)
18 773D Off-Highway Truck specifications
19773D Off-Highway Truck specifications
Empty Weight
Operating Weight
99,340 kg (219,007 lbs)
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/metric ton (20 lb./U.S. ton) of rollingresistance. From this weight-effective grade point, readhorizontally to the curve with the highest obtainable gear, thendown to maximum descent speed brakes can properly handle
without exceeding cooling capacity. The following chartsare based on these conditions: 32° C (90° F) ambienttemperature, at sea level, with 24.00-R35 tires and a properlymaintained cooling system.
NOTE: Select the proper gear to maintain engine rpm at thehighest possible level, without overspeeding the engine.If cooling oil overheats, reduce ground speed to allowtransmission to shift to the next lower speed range.
Retarding Performance
Speed
Effe
ctiv
e Gr
ade
(Fav
orab
le)
Gross Weight
Continuous Grade Length
0 40 80 120 160 200 240 280 320 lb x 1000
0 20 40 60 80 100 120 140 kg x 1000
0 10 20 30 40 50 60 70 80 km/h
0 5 10 15 20 25 30 35 40 45 50 mph
10%
5%
15%
20%
25%30%
5th Gear
4th Gear
3rd Gear
2nd Gear
1st Gear
6th Gear7th Gear
Retarding Performance
Speed
Effe
ctiv
e G
rade
(Fav
orab
le)
Gross Weight
Grade Distance — 1500 m (5000 ft)
0 40 80 120 160 200 240 280 320 lb x 1000
0 20 40 60 80 100 120 140 kg x 1000
0 10 20 30 40 50 60 70 80 km/h
0 5 10 15 20 25 30 35 40 45 50 mph
10%
5%
15%
20%
25%30%
5th Gear4th Gear
3rd Gear
2nd Gear
1st Gear
6th Gear 7th Gear
Speed
Effe
ctiv
e G
rade
(Fav
orab
le)
Gross Weight
Grade Distance — 900 m (3000 ft)
0 40 80 120 160 200 240 280 320 lb x 1000
0 20 40 60 80 100 120 140 kg x 1000
0 10 20 30 40 50 60 70 80 km/h
0 5 10 15 20 25 30 35 40 45 50 mph
10%
5%
15%
20%
25%30%
5th Gear4th Gear
3rd Gear
2nd Gear
1st Gear
6th Gear7th Gear
Speed
Effe
ctiv
e G
rade
(Fav
orab
le)
Gross Weight
Grade Distance — 450 m (1500 ft)
0 40 80 120 160 200 240 280 320 lb x 1000
0 20 40 60 80 100 120 140 kg x 1000
0 10 20 30 40 50 60 70 80 km/h
0 5 10 15 20 25 30 35 40 45 50 mph
10%
5%
15%
20%
25%30%
4th Gear
3rd Gear
2nd Gear1st Gear
6th Gear5th Gear
7th Gear
Speed
Effe
ctiv
e G
rade
(Fav
orab
le)
Gross Weight
Grade Distance — 600 m (2000 ft)
0 40 80 120 160 200 240 280 320 lb x 1000
0 20 40 60 80 100 120 140 kg x 1000
0 10 20 30 40 50 60 70 80 km/h
0 5 10 15 20 25 30 35 40 45 50 mph
10%
5%
15%
20%
25%30%
5th Gear4th Gear
3rd Gear
2nd Gear
1st Gear
6th Gear7th Gear
20 773D Off-Highway Truck specifications
21773D Off-Highway Truck specifications
Empty Weight
99 340 kg Load (219,007 lbs)
Gradeability/Speed/Rimpull
To determine gradeability performance:Read from gross weight down to thepercent of total resistance. Totalresistance equals actual percent gradeplus 1% for each 10 kg/metric ton(20 lb./U.S. ton) of rolling resistance.From this weight-resistance point, readhorizontally to the curve with thehighest obtainable gear, then down tomaximum speed. Usable rimpull willdepend upon traction available andweight on drive wheels.
20
120
100
70
50
30
20
10
5
3
2
1
0.50
0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 km/h
mph
lb x 1000kg x
1000
lb x
1000
kg x 1000
5 10 15 20 25 30 35 40 45 50
0.30
0.50
1
2
3
5
10
20
30
40
50
50 100 150 200 250 300 400 500
30 40 50 60 80 100 150 200
Gross Weight
Speed
Rim
pull
Tota
l Res
ista
nce
(Gra
de p
lus
Rolli
ng)
1st Gear
E L
1st Gear
2nd Gear
3rd Gear
4th Gear
5th Gear
6th Gear
7th Gear
30%20%
15%
12%
10%
8%
6%
4%
2%
Torque Converter DriveDirect Drive
Standard EquipmentStandard equipment may vary. Consult your Caterpillar dealer for details.
Lighting system:Back up lightDome/courtesy lightHazard and directional signals, LEDHeadlights, Halogen, with dimmerStop/tail lights, LED
Mirrors, right and leftPower port, 24-voltPrecleanerReservoirs (separate):
Brake/hoistSteeringTransmission/torque converter
RetarderRock ejectorsSeat belts, retractableSeat, passengerService platform, bolt-onSound reduction switch, body-upStarting, electricSteering, automatic supplemental, electricSteering wheel, padded, tilt, telescopicTires, 24.00-35, radialTow hooks, frontTow pin, rearTransmission, electronically controlled automatic power shift
with downshift/reverse shift inhibitor, neutralizer duringdumping, neutral start switch, engine overspeed protection,directional shift management, programmable top gear,body-up shift limiter, economy shift mode and controlthrottle shifting
Vandalism protection locksWindow, electric power (operator)Windshield wipers and washer, electric intermittent
Air horn, electricAir line dryerAlternator, 50-ampAuxiliary jump start receptacleBack up alarmBattery disconnect switch, ground levelBody mounting groupBrakes:
Caliper disc (front)Oil-disc (rear)ParkingSecondary
Brake (front) disconnect switchBrake heat exchangerBrake release motor, for towingCab, ROPS:
Caterpillar Contour Series air suspension seatCoat hookInsulated and sound-suppressedRadio readyStorage compartmentSun visorTinted glass
Crankcase guardDiagnostic connection port, 24-voltDrive line guardElectrical system, 24-voltElectronic Monitoring SystemFilters, spin-onGauges:
Actual Gear IndicatorAir pressureBrake oil temperatureCoolant temperatureFuel gaugeHour meter, electricOdometerSpeedometerTachometer
Hoist lever, finger tip-actuated
22 773D Off-Highway Truck specifications
23773D Off-Highway Truck specifications
Optional EquipmentOptional equipment may vary. Consult your Caterpillar dealer for details.
Truck Body:Dual-slope body
Body tail end liner for dual-slope body[Liner thickness – 16 mm (0.063") floor]
Truck Production Management System (TPMS)Wiggins Service Center
Air conditioningAutomatic lube systemAutomatic Retarder Control (ARC)Engine coolant heater – 240 voltFuel fast fill adapterFuel heaterIntegrated brake controlMufflerSpare rim, 432 mm (17")Traction Control System (TCS)
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, their respective logos, “Caterpillar Yellow” and thePOWER EDGE trade dress, as well as corporate and product identity used herein,
are trademarks of Caterpillar and may not be used without permission.
AEHQ5854-01 (6-07)
Replaces AEHQ5854
773D Off-Highway Truck
