aehq5969-03, 785d mining truck, specalog
TRANSCRIPT
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785DMiningTruck
EngineEngineModel Cat3512CHD
GrossPowerSAEJ1995 1082kW 1,450hp
NetPowerSAEJ1349 1005kW 1,348hp
WeightsApproximateGrossMachineOperatingWeight(GMW) 249476kg 550,000lb
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ContentsPowerTrainEngine.........................................3
PowerTrainTransmission..............................4
Engine/PowerTrainIntegration........................5
Structures/Suspension/Steering......................6
OperatorsStation...............................................7
CatBrakeSystem................................................8
TruckBodySystems...........................................9
MonitoringSystem............................................10
Safety..................................................................11
Sustainability.....................................................12
Serviceability.....................................................13
CustomerSupport.............................................14
Specifications....................................................15
StandardEquipment.........................................22
MandatoryandOptional Equipment.............23
The785DMiningTruckisengineeredforperformance,designedforcomfort,andbuilttolast.Developedspecificallyforhighproductionminingandconstructionapplications,the785DMiningTruckkeepsmaterialmovingathighvolumetoloweryourcost-per-ton.
Ruggedconstructioncreatesadurablemachine.Easymaintenanceproceduresensurehighreliabilityand longlifewithlowoperatingcosts.
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PowerTrainEngineTheCat3512CHDenginedelivershighpowerandreliability.
DesignThe3512CHDisa12-cylinder,four-strokedesignthatuses
long,effectivepowerstrokesformorecompletefuelcombustion
andoptimumfuelefficiency.
EPACompliantWhereapplicable,the3512CengineiscompliantwithU.S.
EnvironmentalProtectionAgencyemissionrequirements.
AltitudeCompensationDesignedformaximumoperatingefficienciesataltitudesunder
4267m(14,000ft).
HighTorqueRiseThe23percentnettorqueriseprovidesunequalledluggingforce
duringacceleration,onsteepgradesandinroughunderfoot
conditions.Torqueriseeffectivelymatchestransmissionshift
pointsformaximumefficiencyandfastcycletimes.
EnhancedLifeHighdisplacement,lowrpmratingandconservative
horsepowerratingsmeanmoretimeonthehaulroads
andlesstimeintheshop.
OilRenewalSystemOptionaloilrenewalsystemextendsengineoilchangeintervals
from500hoursto4,000hoursormoretoincreasemachine
availabilityandreducecosts.
EngineProtectionComputerizedsystemelectronicallyprotectstheengineduring
coldstarts,highaltitudeoperation,airfilterplugging,high
exhausttemperatureandengineoverspeed(ARC).Optional
EnginePre-Lubricationbuildsupoilpressurebefore
crankingprovidingadditionalwearprotection.
FuelEfficiencyTheengineprovidesadditionalretardingbyrunningagainst
compressionondownhillhauls.Duringretardingapplications
theengineECMdoesnotinjectfuelintothecylindersfor
exceptionalfueleconomy.
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PowerTrainTransmissionUnmatchedoperatingefficiencyinallminingconditions.
MechanicalPowerTrainTheCatmechanicaldrivepowertrainandpowershift
transmissionprovidesunmatchedoperatingefficiencyand
controlonsteepgrades,inpoorunderfootconditions,and
onhaulroadswithhighrollingresistance.
1)TransmissionTheCatsix-speedplanetarypowershifttransmissionis
matchedwiththedirect-injection3512Cenginetodeliver
constantpoweroverawiderangeofoperatingspeeds.
RobustDesignDesignedtoefficientlyapplythehigherhorsepowerofthe
3512Cengine,theprovenplanetarypowershifttransmission
isbuilttoughforlonglifebetweenoverhauls.
TransmissionChassisControl(TCC)TCCuseselectronicallytransferredenginerpmdatatoexecute
shiftsatpresetpointsforoptimumperformance,efficiency
andclutchlife.
2)Lock-UpTorqueConverterCombinesmaximumrimpullandcushionedshiftingof
torqueconverterdrivewiththeefficiencyandperformance
ofdirectdrive.Engagesatapproximately8km/h(5mph),
deliveringmorepowertothewheels.
3)FinalDrivesCatfinaldrivesworkasasystemwiththeplanetarypower
shifttransmissiontodelivermaximumpowertotheground.
Builttowithstandtheforcesofhightorqueandimpactloads,
doublereductionfinaldrivesprovidehightorquemultiplication
tofurtherreducedrivetrainstress.
WheelsandRimsCastrearwheelsandCatcenter-mountrimsaremounted
usingstudstominimizeinstallation,maintenanceand
maximizedurability.
RearAxleFiltrationAnewpumpdrivesystemprovidescontinuousrearaxle
filtration.Benefitsincludecleaneroil,lessdowntime
andimprovedcomponentlife.
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VIMS
VIMS Main Module
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Engine/PowerTrainIntegrationElectronicallyoptimizesoveralltruckperformance.
CatDataLinkElectronicallyintegratesmachinecomputersystemstooptimizeoverallpowertrainperformance,increasereliability
andcomponentlife,andreduceoperatingcosts.
ElectronicTechnician(CatET)CatETservicetoolprovidesservicetechnicianswitheasyaccesstostoreddiagnosticdatathroughtheCatDataLink
tosimplifyproblemdiagnosisandincreasemachineavailability.
IntegratedBrakingControl(IBC)IBCintegratesAutomaticRetarderControlandTractionControlintoonesystemforoptimumperformanceandefficiency.
Body-upReverseNeutralizerAutomaticallyshiftsthetransmissiontoneutralif thehoistleverisactivatedwhiletransmissionisshiftedinreverse.
SupplementalSteeringSupplementalSteeringsystemusespressureaccumulatorsandallowsuptothree90-degreeturnsincaseofenginefailure.
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Structures/Suspension/SteeringRuggedCatdesignsarethebackboneofthe785Dminingtrucksdurability.
Box-SectionDesignThe785Dframeusesabox-sectiondesign,incorporating
twoforgingsand24castingsinhighstressareaswithdeep
penetratingandcontinuouswrap-aroundweldstoresist
damagefromtwistingloadswithoutaddingextraweight.
ServiceabilityTheopenbox-sectionframedesignallowseasyaccesstopower
traincomponents,reducingoverallremovalandinstallation
time,andloweringoverallrepaircosts.Theraisedandpinned
bodyallowsexcellentaccesstothetransmission.
SteelStructuresMildsteelusedthroughoutframeprovidesflexibility,
durabilityandresistancetoimpactloads,evenincold
climates,andallowsforeasyfieldrepairs.
IntegralFour-PostROPSCabResilientlymountedtothemainframetoreducevibration
andsound,theintegralROPSisdesignedasanextension
ofthetruckframe.TheROPS/FOPSstructureprovides
five-sidedprotectionfortheoperatorandinstructor.
SuspensionSystemDesignedtodissipatehaulroadandloadingimpactsforlonger
framelifeandamorecomfortableride.
SteeringSystemHydraulicsteeringcontrolsystemisdesignedforexceptional
smoothnessandprecisecontrol.Aseparatecircuitprevents
crosscontaminationforlonglife.
SupplementalSteeringSupplementalsteeringsystemusespressureaccumulatorsand
allowsuptothree90-degreeturnsincaseofenginefailure.
CylindersFourindependentself-contained,oilpneumatic,variable
reboundsuspensioncylindersaredesignedtoabsorbshocks
inthemostsevereapplications.
DurableDesignRuggedcylindersutilizelargediameterboreandlowpressure
nitrogen/oildesignforlonglifewithminimalmaintenance.
Front.Frontcylinderswithpresetcasterandcamberare
mountedtotheframeandserveassteeringkingpinsfor
atightturningradiuswithexcellentmaneuverability
andlowmaintenance.
Rear.Rearcylindersallowaxleoscillationandabsorb
bendingandtwistingstressescausedbyunevenand
roughhaulroadsratherthantransmittingthemto
themainframe.
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OperatorsStationDesignedforoperatorsafetyandcomfort,superiorcontrolandhighproductivity.
EnhancedOperatorVisibilityThroughtheuseofthefullyIntegratedObjectDetectionSystem,RADARANDCAMERA,theoperator
canreceivebothaudibleandvisualindicationsofdetectedobjects.
ErgonomicLayoutThe785Doperatorstationisergonomicallydesignedfortotalmachinecontrolinacomfortable,productive
andsafeenvironment.Allcontrols,levers,switchesandgaugesarepositionedtomaximizeproductivity
andminimizeoperatorfatigue.
QuietCabIntegral,sound-suppressedROPS/FOPScabisresilientlymountedtothemainframetoisolatethe
operatorfromsoundandvibrationforaquiet,secureandcomfortableride.
ViewingAreaDesignedforexcellentall-aroundvisibilityandclearsightlinestothehaulroad,thelargeviewingarea
enablestheoperatortomaneuverwithconfidenceforhighproductivity.
1)AirSuspensionSeatwithThree-PointOperatorRestraint2)HoistLever3)SecondaryBrakePedal
4)MonitoringSystem5)SteeringColumn6)TransmissionConsole7)ParkingBrakeResetValve
8)StorageCompartment9)TrainerSeat10)OperatorWindow11)OperatorControls12)Heating/
AirConditioning
RadioReadyTheoperatorsstationcomesreadywithpowerports,speakers,antenna,andelectricalconnectionsto
facilitatetrouble-freeradioinstallation.ConsultyourdealerforthecompletelineofavailableCatradio
optionsincludingsatelliteradio.
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CatBrakeSystemSuperiorcontrolgivestheoperatorconfidencetofocusonproductivity.
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1)Parking/SecondaryPiston 2)Service/RetardingPiston 3)FrictionDiscs
4)SteelPlates 5)ActuatingSprings 6)CoolingOilIn 7)CoolingOilOut
IntegratedBrakingSystemTheCatoil-cooledbrakingsystemdeliversreliableperformance
andsuperiorcontrolinthemostextremehaulroadconditions.
Automaticbrakemodulationoffersasmootherrideand
bettercontrolinslipperyconditions,allowingtheoperatorto
concentrateondriving.Thetwopistondesignsystemcombines
theservice,secondary,parkingbrakeandretardingfunctions
inthesamerobustsystemforoptimumbrakingefficiency.
FourCornerRetardingFourcornerretardingwith60/40percentsplit(rear/front)in
brakingeffortprovidessuperiorcontrolinslipperyconditions.
Balancedfronttorearbraketorqueprovidesexceptional
brakingperformanceandminimizeswheellock-up,especially
duringretarding.
Oil-CooledMultipleDiscBrakesCatfour-wheel,forcedoil-cooled,multiplediscservicebrakes
arecontinuouslycooledbywater-to-oilheatexchangersfor
exceptional,non-fadebrakingandretardingperformance.
ExtendedLifeDiscBrakesCatoil-cooleddiscbrakesaredesignedwithlargediscs
andplatesforreliable,adjustment-freeoperationand
performance.Brakesarecompletelyenclosedandsealed
topreventcontaminationandreducemaintenance.
Additionally,thismachinefeaturesnewextendedlifefriction
materialthatisnowstandardonthismodel.Thefriction
materialhasdoublethewearlifeofstandardbrakesandis
twiceasresistanttoglazingresultinginmoreconsistentbraking
powerwithlessnoise.
PistonsTheprimarypistonhydraulicallyactuatesbothserviceand
retardingfunctions.Thesecondarypistonisspring-applied
andheldinthedisengagedpositionbyhydraulicpressure.
If hydraulicsystempressuredropsbelowaspecifiedlevel,
thespring-appliedsecondarypistonautomaticallyapplies
thebrakes.
ParkingBrakeThesuperiorparkingbrakefunctiononthistruckisprovided
bytheoil-cooled,spring-applied,hydraulically-released
servicebrakesatallfourwheels.Thisreliableanddurable
parkingbrakewillholdatruckcarryingaratedloadon
anygradeupto15percent.
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TruckBodySystemsCaterpillardesignedandbuiltforthetoughestminingapplications.
CatTruckBodiesMatchingthetruckbodytotheapplicationisacriticalpartofachievingthebestvaluefromyour785D.Caterpillaroffers
avarietyofapplicationspecificbodyoptionsthatyieldapayloadrangingfrom131to143metrictons(144to157tons).
TheCaterpillarexclusive10/10/20payloadguidelineshelpachieveabalanceofexcellentpayloadwithsafeoperation.
BodyOptions1) CatXBodyTheXbodyisaheavydutybodyconfiguredwithavarietyoflineroptionstomeetsitespecificrequirements
ofamine.LiketheDualSlopetheXbodyisdesignedfordurabilityacrossarangeofharshapplications.
2) MineSpecificBody(MSDII)Formaturemineswithgoodoperationalandmaintenancepractices,thelighterweight
MSDII(MineSpecificDesign)bodyisavailableinseveralsizes.Itisacustomer/sitespecificbodythatisdesignedto
maximizeperformance.TheMSDIIisdesignedtomaximizepayload,providegooddurabilityandcanbeconfigured
withavarietyoflineroptionstomeetthespecificrequirementsofthemine.
3) GatelessCoalBodyThisspecializedhighvolumebody,availableinseveralsizes,istargetedatdedicatedcoalhaulage
applicationswithminimalimpact.Thekickedupfloordesigneliminatesthetailgateandgivesthevolumerequired
tomeettargetpayload.
4) DualSlopeBodyTheoriginalstandardbody,theDualSlopebody,providesexcellentloadretention,maintainsalow
centerofgravitywithoptimumloaddistribution,reducesshockloadingandisavailableinlinedandunlinedconfigurations.
TheDualSlopebodyisintendedfortoughapplicationsincludinggreenfieldsitesandcontractingmines.
CustomBodyOptionsAvarietyofoptionsincludingtailextensions,sideboards,tumblebars,rockboxesandrocksheddersareavailabletomaintain
ratedpayload,reducespillageandimprovehaulingefficiencies.
1)XBody 2)MSDIIBody 3)GatelessCoalBody 4)DualSlopeBody(notshown)
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MonitoringSystemVitalmachinehealthandpayloaddatakeepsthe785Dperforming.
VIMS ETPC
VIMS
VIMSMonitoringSystemTheCaterpillardesignedmachinemonitoringsystemprovides
criticalmachinehealthandpayloadinformationtotheoperator
andservicepersonnel.Withthesystemmonitoringandthe
advanceddiagnosticability,VIMSsimplifiestroubleshooting
andreducesdowntimebyidentifyingabnormalconditions
beforetheycausedamage.VIMSalsostoresmachinedata
tohelpmanageproductionandutilizetheefficiency
PreventativeMaintenance.
ProductionManagementProductionManagementenhancestruck/loadingtool
effectiveness,improvesfleetproductivityandhelpsextendthe
lifeoftruckframes,tires,rimsandpowertraincomponents,
whileloweringoperatingandmaintenancecost.
PayloadManagementMaxPayloadSpeedManagerisafeaturethataidsin
managingtheCaterpillar10/10/20OverloadPolicy.Based
ontargetpayloadweightandoverloadsettings,theVIMS
systemlogsandwarnstheoperatorwhenthetruckreaches
overloadaftersecondgearreweigh.Thetruckwillbelimited
tosecondgearat1,750rpm,andtheautomaticretarder
speedsettingisreducedto1,750rpmuntiltheloadisdumped.
RoadAnalysisControl(RAC)Optionalsystemmonitorshaulroadconditionsby
measuringframerackandpitchtoimprovehaulroad
maintenance,cycletimes,tirelifeandfuelefficiency.
VIMS-PCVIMS-PC,theoff-boardreportingsoftwareprogram,allows
servicepersonneltodownloadacompleterecordofmachine
healthandproductivitydatatoalaptopcomputerfordiagnosis
andanalysis.Easy-to-usesoftwareenablesservicetechnicians
andminemanagementtogeneratehealthandpayload
reportsformoreeffectivemachinemanagement.
VIMSSupervisorOptionalsoftwareallowsminemanagementtoeasilymanage
andinterpretVIMSdataforoptimumfleetmanagement
andproductivity.
MachineManagementServicetechniciansorminepersonnelcandownloaddataand
generatereports.Datacanbeusedtoimproveeffectiveness
ofscheduledmaintenanceprograms,maximizecomponent
life,improvemachineavailability,andloweroperatingcosts.
GaugeClusterConvenientlylocatedgaugeclustermaintainsaconstant
displayofvitalmachinefunctions.
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SafetyCatminingmachinesandsystems:Safetyispriorityone.
ProductSafetyCaterpillarhasbeenandcontinuestobeproactiveindevelopingminingmachinesthatmeetorexceedsafetystandards.Safety
isanintegralpartofallmachineandsystemdesigns.
AccessandEgressImprovementsformachinelevelaccessandegressincludeastandard600mm(24in)diagonalstairwayacrossthefrontofthe
machine.Improvementsforgroundlevelaccessincludeanoptionalpoweredaccessstairway.
IntegratedObjectDetectionSystemsObjectDetectionSystemsarefactoryinstalledasstandardequipmenton785Dminingtrucks.ThefullyIntegratedObject
DetectionSystem,RADARANDCAMERA,providesbothaudibleandvisualindicationsofdetectedobjects.Thissystem
usesacombinationofshortandmediumrangeradarswhichsurroundthemachine,alongwithcamerasoneachsidetoallow
theoperatortoconfirmthedetectedobject.Thecamerassupplementtheradaralertsandareselectablebytouchscreenmenus
throughanintuitiveinterface.
OverloadPolicyAdherencetotheCaterpillar10/10/20OverloadPolicyassuresthatsteeringandbrakingsystemshavesufficientcapacity
toperform.
StandardSafetyFeaturesSlipresistantsurfaces,retractable,seat/shoulderbeltswiththree-pointoperatorrestraint,wide-anglemirrors,bodyraisedindicator,
bodyretainingcable,guardrails,reverseneutralizerwhendumping,lowinteriorsoundlevel,secondarysteeringsystem,ground
levelaccessshutoffswitches.
SAFETY.CAT.COM
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SustainabilityAvarietyoffeaturesimprovesustainabilityinareasofdecreasingwaste,
extendingcomponentlifeandloweringemissionslevels.
SustainabiltyFeaturesThe785DMining Truckoffersoilrenewalsystems,continuousrearaxlefiltration,extendedlifefiltersand
extendedmaintenanceintervalswhichaidindecreasingtheamountofwastecontributedtoourenvironment.
EngineswithAdvancedTechnologyEngineswithadvancedtechnologycontributelessemissionstotheenvironmentwhilemaintainingfuel
efficiency.
AdvancedSurfaceTechnology(AST)AdvancedSurfaceTechnology(AST)isareplacementforhardchromecoatingsonsomesteelparts,
includingsuspensionandhoistcylinderrods.Thistechnologyimproveswearresistanceandreduces
repairtime.Chromehasbeeneliminatedtoreduceenvironmentalimpact.
FuelEfficiencyTheengineprovidesadditionalretardingbyrunningagainstcompressionondownhillhauls.
DuringretardingapplicationstheengineECMdoesnotinjectfuelintothecylindersforexceptional
fueleconomy.
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ServiceabilityLesstimespentonmaintenancemeansmoretimeonthehaulroads.
ServicingEaseEasyaccesstodailyservicepointssimplifiesservicing
andreducestimespentonregularmaintenanceprocedures.
Enhancedserviceabilityand500-hourserviceintervalsare
designedtoincreasemachineavailabilityandproductivity.
MaintenancePlatformProvidesaccesstoengine,airfilters,steeringhydraulictank
andbatterycompartment.
In-FrameAccessPermitseasyaccesstomajorcomponentsforeasyservicing
andremoval.
Ground-LevelAccessAllowsconvenientservicingtotanks,filters,drains,and
engineshutdown.Ground-levelVIMSdataportpermitseasier
downloadingofinformation.
AutolubeAutomaticlubricationsystemreducesmaintenancetime
byautomaticallylubricatingnecessarycomponentson
aregularbasis.
FastFillServiceCenterOptionalservicecenterreducesdailymaintenancetimeswith
clusteredfastfillconnectionsforsteeringoil,transmissionoil,
engineoilandcoolant.
PressureTestPointsandSOSSMPortsSamplepointsandportsyieldrepresentativesamplestomonitor
criticalmachinesystems.
SealedElectricalConnectorsElectricalconnectorsaresealedtolockoutdustandmoisture.
Harnessesarebraidedforprotection.Wiresarecolorcoded
foreasydiagnosisandrepair.
FastFillFuelProvidesareceiveratthefueltanktoacceptmost567liters
perminute/150gallonsperminutefuelingsystems.
AirFiltersRadialsealairfiltersareeasytochange,reducingtime
requiredforairfiltermaintenance.
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CustomerSupportCatdealershavewhatittakestokeepmininghaultrucksproductive.
CommitmentMakestheDifferenceSupportgoesfarbeyondpartsandservice.FromthetimeyouselectapieceofCatequipmentuntiltheday
yourebuild,tradeorsellit,thesupportyougetfromyourCatdealermakesthedifferencethatcounts.
DealerCapabilityDealerexperttechnicianshavetheknowledge,experience,trainingandtoolingnecessarytohandleyour
repairandmaintenanceneeds,whenandwhereyouneedthem.
ProductSupportandServiceSupportSupportedbyaworldwidenetworkofpartsdistributionfacilities,dealerservicecentersandtechnicaltraining
facilities,Catdealerscanmaximizeyouruptime.Withatailoredserviceplan,yourdealercanhelpyou
getthemostreturnonyourinvestment.
TrainingYourCatdealercanarrangetrainingprogramstohelpoperatorsimproveproductivity,decreasedowntime,
reduceoperatingcosts,enhancesafety,andimprovereturnontheinvestmentyoumakeinCatproducts.
TechnologyProductsCatdealersofferarangeofadvancedtechnologyproductssuchasVIMSmonitoringsystemandMineStar
informationmanagementsystem.Theseproductsincluderadiodatacommunications,machinemonitoring
anddiagnostics,fleetmanagement,andhaulroadmaintenancesoftwarealldesignedtoimprovefleet
efficiency,increaseproductivity,andlowercosts.
www.cat.comFormorecompleteinformationonCatproducts,dealerservices,andindustrysolutions,visitusontheweb
atwww.cat.com.
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785DMiningTruckSpecifications
Engine OperatingSpecifications Brakes
EngineModel Cat3512CHD TopSpeedLoaded 54.8km/h 34mph BrakeSurfaceFront 61270cm2 9,497in2
RatedPower 1082kW 1,450hp SteerAngle 36Degrees BrakeSurfaceRear 89729cm2 13,908in2
GrossPower 1082kW 1,450hp
TurningDiameter 29.8m 97.7ft Standards SAEJ1473OCT90
SAEJ1995
Front ISO3450-1985
NetPower 1005kW 1,348hp
MachineClearance 33.2m 108.9ft GrossMachineOperatingWeight(GMW)
SAEJ1349
TurningDiameter upto249476kg(550,000lb).
NetPower 1005kW 1,348hp
TargetPayload 133tonnes 146tons
NetPowerCat 1005kW 1,348hp
(DualSlope)* BodyHoistsMinimumTarget 131tonnes 144tonsNetPower 1005kW 1,348hp PumpFlow 750L/min 198gal/PayloadISO9249 HighIdle min
MaximumTarget 143tonnes 157tonsNetPower 1005kW 1,348hp Relief ValveSetting 17238kPa 2,500psiPayload80/1269/EEC Raise
TorqueRise 23%
RefertotheCatMiningTruck10-10-20 BodyRaiseTime 15.2Seconds
payloadpolicyformaximumgrossmachine
Bore 170mm 6.7in
HighIdleweightlimitations.
Stroke 215mm 8.4in
BodyLowerTime 15.9Seconds*Includesstandardliners.
HighIdleDisplacement 58.56L 3,573.6in3
BodyLowerTime 16.2SecondsTransmissionNetpoweradvertisedisthepoweravailable Float
atratedspeedof1,750rpm,measuredatthe Forward1 12.1km/h 7.5mph BodyPowerDown 15.9Secondsflywheelwhentheengineisequippedwith
Forward2 16.3km/h 10.2mph
HighIdlefan,aircleaner,mufflerandalternator.
Ratingsbasedonstandardairconditions
Forward3 22.2km/h 13.8mph Twin,two-stagehydrauliccylindersmounted
of25C(77F)and99kPa(29.32Hg)dry Forward4 29.9km/h 18.6mph insidemainframe;double-actingcylinders
barometer.PowerbasedonfuelhavingAPI insecondstage.Forward5 40.6km/h 25.2mphgravityof35at16C(60F)andanLHVof Powerraiseinbothstages;powerdown
Forward6 54.8km/h 34mph42780kJ/kg(18,390BTU/lb)whenengine insecondstage.
usedat30C(86F). Reverse 11km/h 6.8mph
Noenginederatingrequiredupto4267m Maximumtravelspeedswithstandard
(14,000ft)altitude. 33.00-R51tires.
Whereapplicable,the3512Cengine Caterpillarrecommendsthecustomer
iscompliantwithU.S.Environmental evaluatealljobconditionsandconsultthe
ProtectionAgencyemissionrequirements. tiremanufacturerforpropertireselection.
WeightsApproximate FinalDrivesGrossMachine 249476kg 550,000lb DifferentialRatio 2.10:1
OperatingWeight
PlanetaryRatio 10.83:1(GMW)
Minimum/Maximum 83304 183,654
OperatingChassis 84668kg 186,661lb
WeightRange
(OCW)
BodyWeightRange 20831 45,924
30623kg 67,512lb
Minimum/Maximum 106218 234,170
OperatingChassis 117597kg 259,257lb
WeightRange
Empty(EOMW)
Bodyweightvariesdependingonhow
bodyisequipped.Weightrangeforknown
applications.
Estimatedweightofdebrisisnotincluded
inoperatingchassisweights.
Chassisweightincludeshoist,bodymounting
group,rims,tires,fullwithalloperating
fluidsand100%fuel.
TotalReduction 22.75:1
Ratio
Planetary,full-floating.
Suspension
EffectiveCylinder 306.5mm 12.1in
StrokeFront
EffectiveCylinder 165mm 6.5in
StrokeRear
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785DMiningTruckSpecifications
BodyDualSlope ServiceRefillCapacities Steering
BodyWeight 22295kg 49,150lb FuelTank 1893L 500gal SteeringStandards
SAEJ1511OCT90
ISO5010:1992HeapedSAE(2:1)
78m 3 102yd3 CoolingSystem 379L 100gal
Bodyweightonly.Doesnotincludeliners.
BodyX
BodyWeight 25160kg 55,468lb
HeapedSAE(2:1) 85m3 111yd3
Bodyweightonly.Doesnotincludeliners.
WeightDistributionsApproximate
FrontAxleEmpty* 45-46%
RearAxleEmpty* 54-55%
FrontAxleLoaded 33%
(Target)
RearAxleLoaded 67%
(Target)
*Dependsonbodyconfiguration.
Crankcase 204L 54gal
Differentialsand 436L 115gal
FinalDrives
SteeringTank 90L 24gal
SteeringSystem 117L 31gal
(IncludesTank)
Brake/Hoist 337L 89gal
HydraulicTank
Brake/HoistSystem 641L 169gal
(IncludesTank)
TorqueConverter/ 248L 65.51gal
TransmissionSystem
(IncludesSump)
ROPS
ROPSStandards
SAEJ1040APR88
ISO3471:1994
ROPS(RolloverProtectiveStructure)for
cabofferedbyCaterpillarmeetsSAEJ1040
APR88andISO3471:1994LevelIIROPS
criteria.
Sound
Turningdiameterwithstandardtires,
perISO7457:29.8m(97ft9in).
Machineclearancediameter,perISO7457:
33.2m(108ft11in).
Steeringangle,leftorright:36degrees.
Separatehydraulicsystempreventscross
contamination.
Tires
StandardTire
33.00-R51(E3&E4)
Productivecapabilitiesofthe785Dtruckare
suchthat,undercertainjobconditions,TKPH
(TMPH)capabilitiesofstandardoroptional
tirescouldbeexceededand,therefore,limit
production.
Caterpillarrecommendsthecustomer
evaluatealljobconditionsandconsultthe
tiremanufacturerforpropertireselection.
SoundStandards
ANSI/SAEJ1166
MAY90
SAEJ88APR95
TheoperatorsoundexposureLeq(equivalent
soundpressurelevel)measuredaccording
toworkcycleproceduresspecifiedin
ANSI/SAEJ1166MAY90is80dB(A)for
cabofferedbyCaterpillar,whenproperly
installed,maintainedandtestedwithdoors
andwindowsclosed.
Theexteriorsoundpressurelevelforthe
standardmachinemeasuredatadistanceof
15m(49ft)accordingtothetestprocedures
specifiedinSAEJ88APR95,mid-gear
movingoperationis89dB(A).
Hearingprotectionmaybeneededwhen
operatingwithanopenoperatorstationand
cab(whennotproperlymaintainedordoors/
windowsopen)forextendedperiodsorin
anoisyenvironment.
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Dimensions
Alldimensionsareapproximate.
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1 12 OverallHeightBodyRaised 11809mm 38ft9inHeighttoTopofROPS 5122mm 16ft10in
2 13 OperatingWidth 7061mm 23ft2inOverallBodyLength 11550mm 37ft9in
3 14 CenterlineFrontTireWidth 4850mm 15ft11inInsideBodyLength 7652mm 25ft2in
4 15 EngineGuardClearance 1057mm 3ft6inOverallLength 11548mm 37ft10in
5 16 OverallCanopyWidth 6747mm 22ft1inWheelbase 5180mm 17ft0in
6 17 OutsideBodyWidth 5894mm 19ft4inRearAxletoTail 3410mm 11ft3in
7 18 InsideBodyWidth 5510mm 18ft1inGroundClearance 987mm 3ft3in
8 19 FrontCanopyHeight 5679mm 18ft7inDumpClearance 1200mm 3ft11in
9 LoadingHeightEmpty 20 4968mm 16ft4in RearAxleClearance 1080mm 3ft7in
10 RearSidewallHeight 21 906mm 3ft0in CenterlineRearDualTireWidth 4285mm 14ft1in
11 22 OverallTireWidth 6277mm 20ft7inInsideBodyDepthMax. 2132mm 7ft0in
Note:StandardDualSlopeBodyandStandardBodyMountingGroup(mirrors)shown.
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785DMiningTruckSpecifications
RetardingPerformance
Todetermineretardingperformance:Addlengthsofalldownhillsegmentsand,usingthistotal,refertoproperretardingchart.
Readfromgrossweightdowntothepercenteffectivegrade.Effectivegradeequalsactual%grademinus1%foreach10kg/t
(20lb/ton)ofrollingresistance.Fromthisweight-effectivegradepoint,readhorizontallytothecurvewiththehighestobtainable
gear,thendowntomaximumdescentspeedbrakescanproperlyhandlewithoutexceedingcoolingcapacity.Thefollowingcharts
arebasedontheseconditions:32C(90F)ambienttemperature,atsealevel,with33.00-R51tires.
NOTE:Selectthepropergeartomaintainenginerpmatthehighestpossiblelevel,withoutoverspeedingtheengine.If cooling
oiloverheats,reducegroundspeedtoallowtransmissiontoshifttothenextlowerspeedrange.
TypicalFieldEmptyWeightGrossMachineOperatingWeight249476kg(550,000lb)
GrossWeight
0 50 100 150 200 250 kgx1000
0 100 200 300 400 500 600 lbx1000
EFFE
CTIV
EG
RAD
E(G
rade
min
usR
ollin
gRe
sist
ance
)
0 5 10 15 20 25 30 35 40
6
5
4
3
2
LE1 30% 25% 20% 15%
10%
5%
mph
0 5 10 15 20 25 30 35 40 45 50 55 60 km/h
SPEEDContinuousGradeLength*
*atsealevel
EEmptyLLoaded
18
-
RetardingPerformance
TypicalFieldEmptyWeightGrossMachineOperatingWeight249476kg(550,000lb)
GrossWeight0 50 100 150 200 250 kgx1000
0 100 200 300 400 500 600 lbx1000
EFFE
CTIV
EG
RAD
E(G
rade
min
usR
ollin
gRe
sist
ance
)
mph0 5 10 15 20 25 30 35 40
6
5
4
3
2
LE1
30% 25% 20% 15%
10%
5%
0 5 10 15 20 25 30 35 40 45 50 55 60 km/h
EEmptyLLoaded
SPEEDGradeDistance450m(1,500ft.)*
*atsealevel
TypicalFieldEmptyWeightGrossMachineOperatingWeight249476kg(550,000lb)
GrossWeight
0 50 100 150 200 250 kgx1000
0 100 200 300 400 500 600 lbx1000
EFFE
CTIV
EG
RAD
E(G
rade
min
usR
ollin
gRe
sist
ance
)
mph0 5 10 15 20 25 30 35 40
6
5
4
3
2
LE1
30% 25% 20% 15%
10%
5%
0 5 10 15 20 25 30 35 40 45 50 55 60 km/h
EEmptyLLoaded
SPEEDGradeDistance600m(2,000ft.)*
*atsealevel
19
-
785DMiningTruckSpecifications
RetardingPerformance
TypicalFieldEmptyWeightGrossMachineOperatingWeight249476kg(550,000lb)
GrossWeight0 50 100 150 200 250 kgx1000
0 100 200 300 400 500 600 lbx1000
EFFE
CTIV
EG
RAD
E(G
rade
min
usR
ollin
gRe
sist
ance
)
mph
65
4
3
2
LE1 30% 25% 20% 15%
10%
5%
0 5 10 15 20 25 30 35 40
0 5 10 15 20 25 30 35 40 45 50 55 60 km/h
EEmptyLLoaded
SPEEDGradeDistance900m(3,000ft.)*
*atsealevel
TypicalFieldEmptyWeightGrossMachineOperatingWeight249476kg(550,000lb)
GrossWeight
0 50 100 150 200 250 kgx1000
0 100 200 300 400 500 600 lbx1000
EFFE
CTIV
EG
RAD
E(G
rade
min
usR
ollin
gRe
sist
ance
)
mph0 5 10 15 20 25 30 35 40
65
4
3
2
LE1 30% 25% 20% 15%
10%
5%
0 5 10 15 20 25 30 35 40 45 50 55 60 km/h
EEmptyLLoaded
SPEEDGradeDistance1500m(5,000ft.)*
*atsealevel
20
-
Gradeability/Speed/Rimpull
Todeterminegradeabilityperformance:Readfromgrossweightdowntothepercentoftotalresistance.Totalresistance
equalsactualpercentgradeplus1%foreach10kg/t(20lb/ton)ofrollingresistance.Fromthisweight-resistancepoint,
readhorizontallytothecurvewiththehighestobtainablegear,thendowntomaximumspeed.Usablerimpullwilldepend
upontractionavailableandweightondrivewheels.
TypicalFieldEmptyWeightGrossMachineOperatingWeight249476kg(550,000lb)
33.00-R51Tires*GrossWeight
kgx lbx 0 50 100 150 200 250 300 kgx1000
0 100 200 300 400 500 600 700 lbx100090 200
1000 1000
80
70
60
50
40
30
20
10
0
180
160
140
120
100
80
60
40
20
00 5 10 15 20 25 30 35 40
30%1C
1D
2D3D
4D5D 6D
15%
10%
5%
20%
25%
LE
TOTA
LRE
SIST
AN
CE(G
rade
plu
sRo
lling
)
RIM
PULL
mph
0 5 10 15 20 25 30 35 40 45 50 55 60 km/h
*atsealevel
SPEED
TorqueConverterDriveDirectDrive
EEmptyLLoaded
21
-
785DMiningTruckStandardEquipment
Standardequipmentmayvary.ConsultyourCatdealerfordetails.
ELECTRICALAlarm,Back-up
Alternator(105A)
Batteries,93Ah,Low-maintenance,12V(2)
Converter,12Velectrical
ElectricalSystem,24V,15A
LightingSystem
Back-upandHazardLights
DirectionalSignals(frontandrearLED)
Headlights,withDimmer
LHLadderLightandServiceDeck
Lights
StopandTailLights(LED)
EngineCompartment
OPERATORENVIRONMENTAirConditioner
Ashtray/cigarettelighter
Coathook
Diagnosticconnectionport
Domecourtesylight
Entertainmentradioready
5ampconverter
Speakers
Antenna
Wiringharness
Gauges/Indicators
Aircleanerserviceindicator
Quadgaugepanel
Airpressure
Brakeoiltemperature
Enginecoolanttemperature
Fuellevel
Electricenginecontrolfaultindicator
Electrichourmeter/tachometer
Speedometer
Tachometer
Transmissiongearindicator
VIMSmessagecenterwithuniversal
gauge
VIMSkeypad
Heater/defroster
Horn
Hoistbodycontrol,electric
IntegratedObjectDetectionSystem
ROPScabinsulated/soundsuppressed
Storagecompartment
Seatbelt,75mm(3in),retractable
Steeringwheel,tilt,padded,telescopic
Sunvisor
Tintedglass
Window,electricpowered,operator
Windshieldwiper,intermittentcontrol
andwasher
POWERTRAINCat3512CHD-EUIdieselengine
AirCleanerwithPrecleaner(2)
EngineShutdown
Etherstartingaid
Airtoairaftercooler(ATAAC)
Elevatedlowidlecontrol
Autostarterprotection
Multi-pointoilpressuresensing
Antifreeze,extendedlifecoolant
35C(30F)
BrakingSystem
Brakereleasemotor(towing)
Oil-cooled,Multiple-disc(frontandrear),
(service,retarding,parking,secondary)
Automaticretardercontrol
Engineoverspeedprotection
Extendedlifebrakedisc
Transmission
6-speedautomaticpowershiftwithelectric
control(TCC)
Body-upshiftinhibitor
Controlledthrottleshifting
Directionalshiftmanagement
Downshift/reverseshiftinhibitor
Individualclutchmodulation
Neutralcoastinhibitor/startswitch
Body-upreverseneutralizer
Programmabletopgear
Lock-uptorqueconvertor
OTHERSTANDARDEQUIPMENTAirLineDryer(2)
BodyMountingGroup
Autolubricationsystem(Lincoln)
Dumping,AuxiliaryQuickConnectfor
BuddyDumping
Steering,AuxiliaryQuickConnectforTowing
Continuousrearaxlefiltration
Diagonalstairway,600mm(24in)
DrivelineOperatorSafetyGuard
Fast-fillFuelSystem
VIMSDataport
BatteryDisconnect
Highspeedcrankcaseoilchange
Reservoirs(Separate)
Brake/converter/hoist
Steering
Transmission
SOSSMsampleports
Supplementalsteering(automatic)
TieDownEyes
TowHooks,Front
TractionControlSystem
VandalismProtectionLocks
VitalInformationManagementSystem
(VIMS)includes:
VIMSpayloadmonitor
MAXpayloadandspeedmanager
22
-
785DMiningTruckMandatoryandOptionalEquipment
MandatoryEquipmentELECTRICAL STARTERSANDBATTERIES Fans
VIMS Airstart,vane,Ingersoll Fan,conventionaldrive
VIMS,English/Spanish Airstart,turbine,Ingersoll Fan,variablespeed
MonitorSystem Starting,electric,prelube Rims
Payload,indicatorlights Starting,electric Rims,2451
Payload,digitaldisplay Airstart,turbine,TDI GroundAccess
Lights Ladder,fixed
Lights,front/rear,HID FUELLINESANDTANKS Stairway,powered*
Lights,front/rear,Halogen Tank,fuel,standardvolume,fastfill,
1893L(500gal) SPECIALARRANGEMENTSFRAME Tank,fuel,standardvolume,non VesselArrangements
BodyMountingGroups pressure,1893L(500gal) Vessels,pressurized,standard
Mounting,body,X,MSD,dual
OPERATORENVIRONMENT
Tank,fuel,largevolume,fastfill,
2498L(660gal)
Tank,fuel,largevolume,nonpressure,
Vessels,pressurized,Canada
Vessels,pressurized,EU
IntegratedObjectDetectionSystem
2498L(660gal)
SERVICEINSTRUCTIONSRadarandcamera
Camera
Allowanceforomission
POWERTRAINEngine
Instructions,ANSI
Instructions,ISO
SeatOptions
Seat,CatComfort,3ptbelt
CompanionSeats
CatSeat,airSuspension,companion
CatSeat,non-suspension,companion
Visor
Engine,standardarrangement
Engine,EPA/ARBflexibility
Radiator
Radiator,foldedcore
Fuelfilters
Screen,fuel,primarywithlines
*Targetavailable2Q2011
Visor,flipdown,front
Visor,retractable,front
Filter,fuelwithseparator
ExhaustSystem
Exhaust,muffler
Exhaust,heatedbody
OptionalEquipmentBODIES OPERATORENVIRONMENT INFORMATIONMANAGEMENTBody,X Footrest,operator Control,RoadAnalysis(RAC)
MSDII(MineSpecificDesign) Hose,cabclean-out
DualSlope Vacuum,cabclean-out SERVICECENTERCustomBodyOptions ServiceCenter,Wiggins
POWERTRAINBODYEXTENSIONS Pre-lube,engine MISCELLANEOUSTail
Wraparound
Oilrenewalsystem
Oilcooler,rearaxle
Fireextinguisher,portable
HubOdometer,Kilometers
LINERS COLDWEATHERHubOdometer,Miles
WheelChocks
Full-lengthliner
Tailextensionwrap-around
Starting,ColdWeather
Heater,Dieselfuel
TIRESANDRIMSSparerims
Sparerim,2451
23
-
785DMiningTruck
FormorecompleteinformationonCatproducts,dealerservices,andindustrysolutions,
visitusonthewebatwww.cat.com
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Allrightsreserved
PrintedintheU.S.A.
Materialsandspecificationsaresubjecttochangewithoutnotice.Featuredmachines
inphotosmayincludeadditionalequipment.SeeyourCatdealerforavailableoptions.
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AEHQ5969-03(12-2010)
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785D Mining TruckContentsPower Train EnginePower Train TransmissionEngine/Power Train IntegrationStructures/Suspension/SteeringOperators StationCat Brake SystemTruck Body SystemsMonitoring SystemSafetySustainabilityServiceabilityCustomer SupportSpecificationsStandard EquipmentMandatory and Optional Equipment