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EngineEngine Model Cat® 3412EGross Power 530 kW 710 hpFlywheel Power 501 kW 671 hp

WeightsGross Machine Weight 99 300 kg 219,000 lb

Operating SpecificationsSAE (2:1) Capacity 35.2 m3 46 yd3

Nominal Payload 54.4 tonnes 60 tons

773EOff-Highway Truck

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773E Off-Highway TruckDesigned for performance, designed for comfort, built to last.

Time proven iron and modern technologycombine to provide a highly productive,durable and reliable off-highway truckfocused on our customers greatestneed...lowest cost-per-ton.

Operator Station

Controls and gauges are positioned tomaximize productivity and comfort.The cab includes an air suspension seatand advanced electronic monitoringsystem. Adjustable telescoping steeringcolumn, electric wipers, window andbody controls reduce operator effortand simplify control. pg. 12

Truck Body Options

The 773E offers a flat floor or dual-slopeoption to meet specific user applications.Both incorporate time-proven boxbeam and full-length stringer designfor extended life. A full offering ofattachments and customized options areavailable to meet specific needs. pg. 11

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 Cat seven-speed, power shifttransmission, matched with the direct-injection 3412E diesel engine provideconstant power over a wide range ofoperating speeds. pg. 5

Power Train - Engine

The power train features the 3412Ediesel engine and Hydraulic ElectronicUnit Injector (HEUI™) for efficientoperation. pg. 4

✔ New Feature

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Systems/Applications

Numerous options and a systemapproach to match the 773E to themost appropriate loader meets customerneeds for various applications. pg. 16

Serviceability/Total Customer Support

Easy serviceability access, QuickEvac™system, on- and off-board diagnostics,machine management service, worldwideparts availability and literature supportrepresents the Caterpillar commitmentto customer support. pg. 14

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Structures

Caterpillar truck frames are built forsevere applications. Mild steel providesflexibility, durability and resistance toimpact loads. Castings and forgings inhigh stress areas of the frame providegreat structural strength. pg. 10

Oil-Cooled, Rear Disc Brakes

Caterpillar oil-cooled, multiple discbrakes offer exceptional, fade-resistantbraking and retarding. pg. 8

Integrated Braking Control (IBC)

IBC integrates the optional AutomaticRetarder Control and Traction ControlSystem (TCS) into one system toenhance truck performance andproductivity and improve operatorconfidence. pg. 9

Cat 3412E Diesel Engine. The four-stroke design uses long power strokesfor more complete fuel combustion andoptimum efficiency. High displacementand a low speed rating can help extendengine life. This engine meets U.S.Environmental Protection Agency Tier 2emissions regulations and Stage II EUEmissions Directive 97/68/EC.

Torque Rise. The 40 percent torque riseprovides high lugging force duringacceleration and less down-shifting ongrade or in rough underfoot conditions.The torque rise effectively matches thetransmission shift points to providemaximum efficiency and fastercycle times.

Engine.

1) Valve Rotators

2) Turbocharger

3) Stellite-Faced Valves

4) Steel-Backed, Copper-BondedBearings

5) Oil Cooler

6) Forged Crankshaft

7) Adjustment-Free, Fuel InjectionPumps

8) Hydraulic Injectors

9) Forged Steel Pistons

10) Full-Length, Water-CooledCylinder Liners

Engine Features. Contributing to the3412E power and reliability are:

• High pressure injection

• Full electronic control

• One piece forged steel pistons withthree rings cooled by oil spray

• Copper-bonded crankshaft bearings

• Hardened crankshaft journals

• Dry-type, radial seal air cleaners withprimary and secondary elements andprecleaner

• Direct-electric, 24-volt startingsystem with 50-amp alternator andtwo172-amp-hour, low maintenance,high output, 12-volt batteries

Hydraulic Electronic Unit Injector(HEUITM). The HEUI is a proven high-pressure, direct injection fuel system.This system electronically monitorsoperator and machine inputs to optimizeengine performance. HEUI is unique inits ability to independently controlinjection pressure over the entire engineoperating range. This allows completecontrol over injection timing, duration,performance and efficiency. Rate shapingtechnology modifies the heat releasecharacteristics of the combustion processfor significant decreases in sound andemission levels. Exhaust smoke issignificantly reduced through precise,electronic control of fueling limits andinjection timing.

Electronic Control Module (ECM).The 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 engine is built for power, reliability, economy and with theHEUI™ fuel system, meets worldwide emissions

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Transmission. The Cat seven-speed,power shift transmission, matched withthe direct-injection 3412E diesel engineprovides constant power over a widerange of operating speeds.

Transmission Features. Include:

• Seven speeds forward, one reverse

• Torque converter driven in reverse

• First gear has both torque converterdrive and direct drive

• Second through seventh gears aredirect drive

• Single-lever shift control providesautomatic shifting in all gears up tothe one selected by the control lever

• Each shift is individually modulatedfor maximum smoothness

• Separate hydraulic circuit with cooler

• Electronic control has built-indiagnostics and fault code memory,event memory and programmablefeatures

• Control throttle shifting

• Economy shift mode

1) Lock-up Torque Converter. Combinesthe maximum rimpull and cushionedshifting of torque converter drive withthe efficiency and performance ofdirect drive.

• Engages at approximately 6.9 km/h(4.3 mph), delivering more powerto the wheels

• Lock-up clutch quickly releasesand re-engages during shifts,maintaining power wind-up,improving transmission life andincreasing operator comfort

2) Planetary Power Shift Transmission.Utilizes a modulating pressure valve toregulate clutch pressure rise and fall toease clutch engagement. This reducesshock loads on power train components.Features include:

• Large diameter clutches and robustplanetary gears and bearings

• Rotating clutch pressure sealsminimize drag losses and improvereliability

• 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-peened to relieve internal stresses andincrease durability. Rolled splines alsoprovide increased service life.

Wheel and Rims. Cast rear wheels andCat center-mount rims are mountedusing studs and nuts to minimizemaintenance and maximize durability.

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

Integration. The Caterpillar powertrain integration provides increasedcomponent life and operator comfort.

Power Train - TransmissionThe Cat seven-speed, power shift transmission gets the job done smoothly and quickly.

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Integration.

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 andlonger component life.

• Economy Shift Mode. Modifies enginemaps, resulting in improved fuelconsumption.

• Directional Shift Management.Regulates engine speed duringdirectional shifts to prevent damagecaused by high speed directional changes.

• Elevated Idle 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

Engine/Power Train IntegrationCombining the electronic Engine Control Module (ECM) with the Caterpillar Transmission Chassis Controller (TCC) allows critical power train components to work more intelligently.

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Electronic Technician (ET). The electronicengine and transmission controls provideexhaustive diagnostic capability forservice technicians. The ability to storeboth active and intermittent indicatorswill simplify problem diagnosis andreduce total repair time, resulting inimproved mechanical availability andlower operating cost.

• ET accesses data stored in the engineand transmission controls via theCat Data Link System.

• ET displays the status of all engineparameters including throttleposition, timing and fuel flow.

• ET replaces 13 mechanical toolsto perform functions like cylindercutout checks, injector solenoidtests and timing calibration.

Caterpillar Electronic MonitoringSystem (CEMS). CEMS allows theoperator to view requested informationand utilizes a three-category warningsystem to alert the operator to abnormalmachine conditions.

Optional Attachments. Caterpillar offersoptional attachments that integrate withthe Cat Data Link System.

• Automatic Retarder Control (ARC).Works with other electronic componentsto automatically control retarding ongrade, maintaining approximately2,230 rpm.

• Traction Control System (TCS).Improves performance in poor underfootconditions by electronically monitoringand controlling wheel slippage.

• Integrated Brake Controller (IBC).Combines ARC and TCS, reducing thenumber of electronic components andelectrical lines.

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Brakes.

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

Multiple Disc Brakes. Caterpillar forcedoil-cooled, multiple disc brakes arecontinuously cooled for exceptional,fade-resistant braking and retarding.The optional ARC and TCS utilize theoil-cooled rear brakes to enhance truckperformance and increase productivity.

Oil-Cooled Disc Brakes. Are designedand built for reliable, adjustment-freeoperation providing superior performanceand service life in comparison to shoe-type and dry-disc systems.

Oil Film. An oil film prevents directcontact between the discs. Absorbingthe braking forces by shearing oil andcarrying heat away, this design extendsbrake life.

Secondary Braking. Spring-applied,hyraulically released, oil-cooled discbrakes are located on the rear axle.The front brakes will activate as part ofthe secondary system, even if switchedout of service.

Parking Brakes. Spring-applied,hydraulically released parking brakesuse wet disc brakes in the servicesystem. A toggle switch activatesthe parking brake.

Pistons. A Caterpillar two-piston designcombines the service, secondary andparking brakes, along with retardingfunctions.

The primary piston hydraulically actuatesboth service and retarding functions.The secondary piston is spring-appliedand held in the disengaged position byhydraulic pressure. If hydraulic systempressure drops below a certain level,the spring-applied secondary pistonautomatically applies the brakes.

Oil-Cooled, Rear Disc BrakesRear braking lets the operator concentrate on the haul road.

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Automatic Retarder Control (Optional).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 ARC turnedoff, ARC will automatically activate at2,475 rpm to help avoid potentiallydestructive and often costly engineoverspeeds.

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 ARC’s precision.

• Faster troubleshooting and diagnosiswith self-diagnostic capability andthe ability to communicate with ETthrough the Cat Data Link System.

• Operator awareness throughelectronic integration and CEMS,alerting the operator to overspeedconditions and critical machinefunctions.

Traction Control System (Optional).Monitors wheel slip so if it exceedsthe set limit, the oil-cooled disc brakesare automatically applied to slow thespinning wheel.

Operator Awareness. An on-dashindicator shows the operator that TCSis engaged.

Differential Action. Utilizes normaldifferential action to provide superiormaneuvering in poor underfootconditions. Also reduces tire scuffing ascompared to positive lock differentialsused on other systems.

Torque. TCS divides torque equallyto reduce stress created on final drivesand axles when torque is transferred toone side.

System Back-up. Should sensors fail,the normal differential action is stillavailable to maintain control andsteering.

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

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700

Integrated Braking Control (IBC)Electronically combines Automatic Retarding Control (ARC) and the Traction ControlSystem (TCS) into one integrated control system.

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Box-Section Design. The 773E frameuses a box-section design, incorporating20 castings in high stress areas withdeep penetrating and continuous wrap-around welding. Mild steel, whichprovides flexibility, durability andresistance to impact loads even incold climates is used throughout.

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. Include:

• Integral front bumper

• Front box beams for suspensioncylinder and ROPS support

• Box-section rear crossmemberfor body and ROPS support withattachment points for maintenanceplatform and rear engine hoodhinge support

• Castings provide additional strengthin critical stress areas

• Mild steel plates (290 MPa[42,000 psi] minimum yield strength)and castings (241 MPa [35,000 psi]minimum yield strength) provideflexibility, durability and easy fieldmaintenance

Frame Serviceability. The box-sectionframe allows simple access to powertrain components. This open designreduces overall removal and installationtime, lowering repair costs. Transmissionaccess is excellent under the raisedand pinned body. Repairs can bemade without preheating in ambienttemperatures above 16° C (60° F) usingreadily available welding supplies.

Rollover Protection Structure (ROPS).The ROPS attaches securely to fourcastings welded into the frame.

Suspension System. Designed to dissipatehaul road and loading impacts forextended frame life.

Four independent, self-contained, oilpneumatic, variable-rebound, suspensioncylinders absorb shocks. Rear cylindersallow axle oscillation and absorb bendingand twisting stresses. Front cylinders,mounted to the frame, serve as steeringkingpins, providing excellentmaneuverability and reducedmaintenance. Caster and camberare preset.

StructuresThe backbone of the Cat off-highway truck.

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Design. 773E bodies are designed tohandle a variety of material densities.Maximum payload is reached in threeto five passes from a matched Cat loaderin 1700 kg/m3 (2,900 lb/yd3) materialand higher.

Sidewall and Floor Junctions. Are joinedby five-sided beams to resist impactloading and 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 of 9.5 seconds forraise and 12.5 seconds for lower.

Standard Body. Comes exhaust heatedwith options including a full-timemuffler or exhaust diverter.

Custom Attachments. Including tailextensions, liner packages, sideboardsand other custom designs are offeredto help ensure rated payload.

1) Dual-Slope Body. Offers the lowestcost-per-ton option in most constructionand mining applications.

Dual-Slope Body Performance. Efficientunder most haul road conditions, but itsstrength comes from higher levels ofproduction in sites with rough haulroads and steeper grades.

Body Floor Construction. Uses an eightdegree “V” bottom for increased loadretention, a low center of gravity andreduced shock loading. It also aids incentering the load.

18 Degree Ducktail and 9 DegreeForward Body Slope. Retains the loadon grades up to 15 percent and higher.This design also helps maintain properload distribution.

2) Flat Floor Construction and MiningBody. Offers excellent load retention ongrades up to 12 percent and on smootherhaul road conditions.

Body Floor Construction. Uses a12 degree single slope, offeringexcellent wear characteristics anduniform dumping into hoppers,crushers and feeders.

Truck Body OptionsCaterpillar builds a variety of rugged, durable bodies to perform in the toughest applications.

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Operator StationControl ease and comfort maximize productivity.

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773E Operator Station. Rated highlyby operators with everything neededfor top performance located at theoperator’s fingertips.

1) Wraparound Dash Panel. Offers aneasy line-of-sight arrangement, usingLED backlit rocker switches.

2) Caterpillar Contour Series AirSuspension Seat. Standard and fullyadjustable, including an adjustableright-hand armrest.

3) Tilt-Telescoping Steering Wheel.With ergonomic grip improves comfortand control. Low effort steering systemand ergonomically designed retarderlever reduces operator fatigue. Alsoincludes an enhanced turn signal leverwith high beam actuator and electricwindshield wiper controls.

4) Transmission Console. Has LEDbacklit gear numbers and ergonomicshift knob.

5) Visibility. Exceptional all-aroundviewing area reduces fatigue andimproves productivity.

6) Integral, Sound-SuppressedROPS/FOPS Cab. Is resiliently mountedproviding a quiet, protected workenvironment. The cab is radio-readywith speakers, wiring harness, antennaand mounting bracket.

7) Front Brake Cut-Out Switch.Increases front brake component life.

8) Large Storage Compartment. 0.10 m3

(3.5 ft3) of storage space is locatedunder the trainer’s seat.

9) Trainer’s Seat. Includes back rest andretractable seat belt.

10) Caterpillar Electronic MonitoringSystem (CEMS). Provides critical data.The system features three separatedisplays:

• Four-gauge cluster with coolanttemperature, oil temperature, brakeair pressure, fuel level

• Tachometer, digital speedometer,actual gear indicator

• Message center module

11) Standard Heater and Optional AirConditioner. Includes four-speed fanand nine vents.

12) Foot Pedals. Ergonomically designedfor increased operator comfort.

13) Electric Power Window.For simplified operation.

14) Electrohydraulic Hoist Lever.Is fingertip actuated and provideslow impact body-down snubbing.

15) Truck Production ManagementSystem (TPMS) (Optional). Providespayload and cycle time data.

• Cat developed technology utilizesstrut pressure sensors and an on-board microprocessor to determinepayload weight

• Accurate under normal loading towithin ± five percent over a normaloperating shift

• Delivers consistent accuratepayloads and improves efficiencyby minimizing overloading andunderloading

- On-board computer stores1,400 cycles for further analysisof payload weight, cycle segmenttimes, cycle segment distancesand actual clock time and dateof each cycle

- External lights signal loading tooloperator when payload is reached

- Internal troubleshooting and faultrecording for easier maintenance

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Cat QuickEvac™ System. Is an exclusiveCaterpillar on-board engine oilevacuation and prelubrication system.

Automated Engine Oil Change. A new,state-of-the-art, on-board systemevacuates engine sump in less thantwo minutes and allows for purge ofoil filters prior to removal, minimizingoil spills. It delivers new oil throughprimary filters for filtered protectionand ensures new filters are correctlyfilled following routine oil change.

Contamination Control. Environmentallyefficient, clean oil changes are ensuredsince engine sump is evacuated directlyinto PM trucks or waste containers withflush faced, quick disconnects for fastevacuation and fill. This eliminateshandling of waste oil, minimizeschances of oil spillage and enhancesContamination Control efforts byensuring complete filtration of newoil on engine refill.

Complete Engine Prelubrication.Provides engine oil pressure prior toengine cranking. Reduces engine drystart wear and risk of cold starts forincreased protection of key components.Also provides expanded low temperaturerange for 15W40 motor oils.

Improved Serviceability and MachineAvailability. Reduces time to completeengine service (changing engine oil, oilfilters, fuel filter, air cleaner) by as muchas 30 to 50 percent. Improves the abilityto schedule engine services at prescribedhours, allows for servicing duringnormal working hours and integrateseasily with PM trucks to further reducetotal cycle time of engine service.

Machine Platform. Provides access toair tanks, brake master cylinder andmake-up tank; engine oil level; airfilters; steering hydraulic tanks; andbattery compartment.

Ground Level Battery DisconnectSwitch. Facilitates safe, convenientservicing and maintenance.

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Serviceability/Total Customer SupportPurchase of a Caterpillar machine includes a total commitment to customer support.

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 downtimeand lowering operating costs. ET storesengine parameter information such astiming, throttle position and fuel flow.Transmission data is available through ETvia access to the Cat Data Link System.

Radial Seal Filters. Are easy to change,reducing air filter maintenance times.

Vertical, Spin-On Filters. Provide forsimplified servicing.

Quick Coupler Pressure Taps. Locatedin all hydraulic systems provide clear,quick pressure checks. S·O·SSM oilanalysis points make oil samplingquick, clean and easy.

Sealed Electrical Connectors. Lock outdust and moisture. Color-coded wiringis standard for the entire Cat 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 oil 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.

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Machine Configuration Options.Caterpillar offers a variety of machineconfiguration options to help meetcustomer needs.

Body Options. Include a full line ofstandard and custom designs based onspecific customer preference, materialdensity, loading tool and site conditions.

Tire Options. A full line of tire options,representing various manufacturers, isoffered by Caterpillar. To maximizeperformance and life for specificapplications.

Attachments. Give the customer optionsto tailor trucks for specific applicationrequirements, including:

• Truck Production ManagementSystem

• Automatic Retarder Control

• Traction Control System

• Custom product offerings

• Muffler/exhaust diverter

System Approach. The Caterpillarsystem approach means increasedefficiencies through common design.Haul trucks, loaders, excavators,tractors, engines for generator sets andpumps - all designed by Caterpillar -use common components, parts anddesign. 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). Combined with Caterpillarsoftware programs can assist customerswith detailed, application evaluation.

Loader Match. Designed to work as partof a system, the 773E is best matched tothe following Caterpillar loaders:

• 988G - five pass/match

• 990 Series II - three pass/match

• 5080 - six pass/match

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Systems/ApplicationsThe 773E is designed for versatility.

17773E Off-Highway Truck specifications

Brakes

Brake surface - front 1395 cm2 216 in2

Brake surface - rear 61 264 cm2 9,496 in2

• Meets ISO 3450:1996 standards up to 99 300 kg (219,000 lb)gross operating weight.

Service Refill Capacities

Fuel Tank 700 L 185 galCooling System 151 L 40 galCrankcase 68 L 18 galDifferentials and final drives 155 L 41 galSteering tank 34 L 9 galSteering system (includes tank) 60 L 16 galBrake/hoist hydraulic tank 133 L 35 galBrake/hoist system 307 L 81 gal(includes tank)Torque converter/ 53 L 14 galtransmission sumpTorque converter/transmission 72 L 19 galsystem (includes sump)

Body Hoists

Pump flow - high idle 562 L/min 148 gal/minRelief valve setting - raise 17 225 kPa 2,500 psiRelief valve setting - lower 3445 kPa 500 psiBody raise time @ high idle 9.5 SecondsBody power down @ high idle 12.5 Seconds

• Twin, two-stage hydraulic cylinders mounted inside the mainframe, double acting in second stage.

• Power raise in both stages and power down in second stage.

Suspension

Effective cylinder stroke - front 209 mm 8.2 inEffective cylinder stroke - rear 149 mm 5.9 inRear axle oscillation ±8°

Engine

Engine Model Cat 3412EGross Power 530 kW 710 hpFlywheel Power 501 kW 671 hpDIN 70020 681 PSMax. Torque 3434 N•m 2,533 lb ftTorque rise 40%Bore 137 mm 5.4 inStroke 152 mm 6 inDisplacement 27 L 1,649 in3

• Gross power meets ISO 3046-02 standards.

• Flywheel power meets ISO 9249, SAE J1349 JUN95 andEEC80/1269 standards.

• These engine ratings apply at 2,000 rpm when tested underthe specified standard conditions for the specified standard.

• Power rating conditions based on standard conditions of25° C (77° F) and 99 kPa (29.32 in Hg) dry barometer, using35° C (95° F) API gravity fuel having an LHV of 42 780 kJ/kg(18,390 Btu/lb) when used at 30° C (86° F) (reference a fueldensity of 838.9 g/L [7.001 lb/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.

• Meets U.S. Environmental Protection Agency Tier 2emissions regulations.

• Meets Stage II EU Emissions Directive 97/68/EC.

Transmission

Forward 1 10 kph 6.2 mphForward 2 13.9 kph 8.6 mphForward 3 18.7 kph 11.6 mphForward 4 25.1 kph 15.6 mphForward 5 34 kph 21.1 mphForward 6 45.9 kph 28.5 mphForward 7 65.8 kph 41.1 mphReverse 12 kph 7.5 mph

• Maximum travel speeds (standard 24.00-R35).

Final Drive

Differential ratio 3.64:1Planetary ratio 4.80:1Total reduction ratio 17.48:1

• Planetary, full-floating.

18 773E Off-Highway Truck specifications

Tires

• Tires Standard: 24.00-R35 (E4)

• Productive capabilities of the 773E truck are such that, undercertain job conditions, TKPH (TMPH) capabilities of standardor optional tires could be exceeded and, therefore, limitproduction.

• Caterpillar recommends the user evaluate all job conditionsand consult the tire manufacturer to make proper tireselection.

ROPS

• ROPS Meets SAE J1040 MAY94and ISO 3741:1994

• Integral Rollover Protective Structure (ROPS) is offered byCaterpillar as standard equipment.

• When properly installed and maintained, the cab offered byCaterpillar when tested with doors and windows closed asper work cycle procedures specified in ANSI/SAE J1166MAY 90, results in an operator sound exposure Leq(equivalent sound level) of 79 dB(A).

• The operator A-weighted sound exposure level can be usedin conjunction with OSHA, MSHA and EEC OccupationalNoise Exposure Criteria.

Sound

• Sound Meets SAE J88 APR95

• This machine, in standard configuration, when measuredand operated per the prescribed modes has a 15 m soundpressure level of 84 dB(A) for the mode that gives thehighest level.

Steering

• Steering Meets SAE J1511 FEB94and ISO 5010-1992

• Turning diameter on front wheel track is 21.7 m (72 ft 2 in).

• Machine clearance turning circle is 23.8 m (78 ft 9 in).

• Steering angle (left or right) is 31 degrees.

• Separate hydraulic system prevents cross contamination.

• Steering wheel effort is low and steering wheel cycle timesare reduced with a new variable-displacement, piston-typesteering pump.

Approximate Weights - Flat Floor

Gross vehicle 99 300 kg 219,000 lbChassis 30 200 kg 66,500 lbBody 9550 kg 21,050 lbStandard liner 4000 kg 8,800 lbFront axle - empty 47.3%Front axle - loaded 33.3%Rear axle - empty 52.7%Rear axle - loaded 66.7%

Approximate Weights - Dual-slope

Gross vehicle 99 300 kg 219,000 lbChassis 30 200 kg 66,500 lbBody 9210 kg 20,300 lbStandard liner 3900 kg 8,600 lbFront axle - empty 47.3%Front axle - loaded 33.3%Rear axle - empty 52.7%Rear axle - loaded 66.7%

Capacity - Flat Floor - 100% fill factor

Struck 26.6 m3 34.8 yd3

Heaped 3:1 32.6 m3 42.6 yd3

Heaped 2:1 (SAE) 35.5 m3 46.4 yd3

Heaped 1:1 43.9 m3 57.5 yd3

Capacity - Dual-slope - 100% fill factor

Struck 26.6 m3 34.8 yd3

Heaped 3:1 32.4 m3 42.4 yd3

Heaped 2:1 (SAE) 35.2 m3 46 yd3

Heaped 1:1 43.3 m3 56.6 yd3

Weights

Gross Machine Weight 99 300 kg 219,000 lb

Operating Specifications

SAE (2:1) Capacity 35.2 m3 46 yd3

Nominal Payload Capacity 54.4 tonnes 60 tons

• Refer to the Caterpillar 10/10/20 Payload Policy.

19773E Off-Highway Truck specifications

DimensionsAll dimensions are approximate.

Flat Floor Dual-slopekg lb kg lb

Gross vehicle weight 99 300 219,000 99 300 219,000

Chassis 30 200 66,500 30 200 66,500

Body 9550 21,050 9210 20,300

Standard liner 4000 8,800 3900 8,600

Weight Distribution:

Empty Loaded Empty LoadedFront axle 47.3% 33.3% 47.3% 33.3%

Rear axle 52.7% 66.7% 52.7% 66.7%

Weights(Approximate)

1 8637 mm 28' 4" 8535 mm 28' 0"2 1802 mm 5' 11" 1805 mm 5' 11"3 6493 mm 21' 4" 6400 mm 21' 0"4 8815 mm 28' 11" 8787 mm 28' 10"5 3787 mm 12' 5" 3773 mm 12' 5"6 661 mm 2' 2" 676 mm 2' 2"7 551 mm 1' 10" 566 mm 1' 11"8 2870 mm 9' 5" 2782 mm 9' 1"9 4424 mm 14' 6" 4393 mm 14' 5"10 4350 mm 14' 4" 4350 mm 14' 4"

Flat Floor Dual-slope

* Operating width to r.h. mirror

480 mm(19")

4000 mm(13' 2")empty

3900 mm(12' 10")loaded

9207 mm(30' 2")

4191 mm(13' 9")

9° DS12° FF

60°

1

2

empty5

6empty

8

7loaded

43

4457 mm(14' 8")

3658 mm(12' 0")

4398 mm(14' 5")

4040 mm(13' 5")

3275 mm(10' 9")

*5076 mm(16' 8")

4316 mm(14' 2")

667 mm(26")

empty

591 mm(23")

empty

2927 mm(9' 7")

3966 mm(13' 0")

3910 mm(12' 10")

3785 mm(12' 5")

10loaded

9empty

Speed

Eff

ecti

ve G

rad

e (

Favo

rab

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

Empty WeightGross Machine Weight99 300 kg (219,000 lb)

20 773E Off-Highway Truck specifications

The brake performance retarding curves shown in this sectionare for general guidance only. As each site has many uniqueenvironmental and operating conditions that will impactretarding performance, actual site performance could varyconsiderably from predicted performance. Users should usethe retarding speed (gear) recommendations from these tablesas a starting point for determining retarding performance andthen adjust retarding speeds to their site-specific conditions.In adjusting retarding performance to continuously changingenvironmental and site-specific conditions, users need toexercise care to maintain brake cooling and machinecontrollability at all times.

To determine brake retarding performance from retarding tables:

1. Determine the total distance of all downhill grades combinedfor a given haul profile. This total distance determines theappropriate retarding table (continuous or one of the gradedistance tables) applicable to your haul profile.

2. Read from the appropriate gross weight down to percentfavorable effective grade. (For these retarding charts,effective grade equals the maximum grade of all downhillhaul segments minus rolling resistance – do not use anaverage grade value.)

3. From the intersection of the gross weight and effective gradeline point, read horizontally to the appropriate gear curve.If the horizontal line intersects two gear curves, choose thefirst gear curve that the horizontal line intersects (readingfrom right to left) and read the retarding speed performanceimmediately below this point. If the intersection point fallson a vertical line between two gears, choose the lowest of thetwo gears to allow for higher engine rpm thus maximizingbrake cooling capability.

4. Adjust recommended retarding speeds to site specific(environmental and operational) conditions. If the brakesystem overheats or specific site conditions dictate (tightturns, short steep grades, manual braking, etc.), reduceground speed to allow the transmission to shift to the nextlower speed range.

Retarding Performance

21773E Off-Highway Truck specifications

Speed

Eff

ecti

ve

Gra

de

(F

av

ora

ble

)

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 Gear

1st Gear

6th Gear

5th Gear

7th Gear

Speed

Eff

ecti

ve

Gra

de

(F

av

ora

ble

)

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 Gear

4th Gear

3rd Gear

2nd Gear

1st Gear

6th Gear7th Gear

Speed

Eff

ecti

ve

Gra

de

(F

av

ora

ble

)

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 Gear

4th Gear

3rd Gear

2nd Gear

1st Gear

6th Gear7th Gear

Speed

Eff

ecti

ve

Gra

de

(F

av

ora

ble

)

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 Gear

4th Gear

3rd Gear

2nd Gear

1st Gear

6th Gear7th Gear

22 773E Off-Highway Truck specifications

Retarding Performance (continued)

23773E Off-Highway Truck specifications

Gradeability/Speed/Rimpull

To determine gradeability performance,read from gross weight down to thepercent of total resistance. Totalresistance equals actual percent gradeplus one percent for each 10 kg/tonne(20 lb/ton) of rolling resistance. Fromthis 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.

0 5 10 15 20 25 30 35 40 45 500

20

40

60

80

100

Rim

pu

ll

KG x1000

LB x1000

km/h

mph

KG x 1000

5th Gear

2nd Gear

6th Gear

1st Gear

4th Gear

3rd Gear

LE

E

FF

EC

TIV

E G

RA

DE

(F

avo

rab

le)

Gross Weight

LB x 1000

25%

5%

10%

15%

20%

30%

SPEED

0 20 40 60 80 100 120 140 160 180 200 220

Direct DriveDriveTorque Converter

Gross Machine Weight - 99 300 kg (219,000 lb)

Empty Weight

1st Gear

7th Gear

0 10 20 30 40 50 60 70 80 90 100

0 10 20 30 40 50 60 70 80

0

10

20

30

40

24 773E Off-Highway Truck specifications

Standard EquipmentStandard equipment may vary. Consult a Caterpillar dealer for specifics.

Heater/defroster 11 707 kCal (43,930 Btu)Hoist lever, fingertip-actuatedLighting system

Backup lightDome/courtesy lightHazard and directional signals, LEDHeadlights, halogen, with dimmerStop/tail lights, LED

Mirrors, right and leftPower port, 24-voltPrecleanerQuickEvac™ System with PrelubeReservoirs (separate)

Brake/hoistSteeringTransmission/torque converter

RetarderRock ejectorsSeatbelts, retractableSeat, passengerService platform, bolt-onStarting, 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 receptacleBackup alarmBattery disconnect switch, ground levelBody mounting groupBrakes

Caliper disc (front)Oil disc (rear)ParkingSecondary

Brake (front) disconnect switch Brake heat exchangerBrake release motor, for towingCab, ROPS

Caterpillar Contour Series air suspension seatCoathookCupholderInsulated 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 temperatureFuelHour meter, electricOdometerSpeedometerTachometer

25773E Off-Highway Truck specifications

Optional EquipmentWith approximate changes in operating weights.Optional equipment may vary. Consult a Caterpillar Dealer for specifics.

kg lbAir conditioning 90 198

Automatic lube system 60 135

Automatic Retarder Control (ARC) 6 13

Clustered grease fittings 20 50

Engine coolant heater - 120-volt 3 7

Engine coolant heater - 240-volt 4 9

Ether starting aid 5 10

Exhaust diverter/muffler 93 205

Fuel heater kit 5 12

Integrated brake control 56 123

Muffler 116 256

Spare rim 432 mm (17") 390 860

kg lbTruck bodies:

Dual-slope body 9210 20,300

Body liner for dual-slope body [Liner thickness - 16 mm (.063") floor,8 mm (.031") front and side walls] 3900 8,600

Flat floor body 9550 21,050

Body liner for flat floor body[Liner thickness - 16 mm (.063") floor,8 mm (.031") front and side walls] 4000 8,800

Traction Control System (TCS) 50 110

Truck Production ManagementSystem (TPMS) 46 100

Wheel chocks 25 50

Wiggins fast fuel change 2 5

Wiggins high-speed oil change 1 2

Flat Floor Dual-slopekg lb kg lb

Empty Chassis Weight 30 200 66,500 30 200 66,500

Fuel Correction (90% × 185 gal × 7.1 lbs/gal) 530 1170 530 1170

Optional Attachments WeightDebris Allowance (4% of chassis) +1200 +2660 +1200 +2660

Chassis Weight 31 930 70,330 31 930 70,330

Body Weight 9550 21,050 9210 20,300

Body Attachments Weight +4000 +8800 +3900 +8600

Total Empty Operating Weight 45 480 100,180 45 040 99,230

Target Payload +53 820 +118,820 +54 260 +119,770

Gross Machine Operating Weight 99 300 219,000 99 300 219,000

*Note: Refer to Caterpillar’s 10/10/20 Payload Policy for Quarry and Construction Trucks.

Weight/Payload Calculation*(Example)

773E Off-Highway Truck specifications26

Notes

773E Off-Highway Truck specifications 27

Notes

R

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

© 2001 CaterpillarPrinted 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.

AEHQ5456 (11-01)

Replaces AEHQ5138-03

773E Off-Highway Truck