D8RTrack-TypeTractor

Engine WeightsEngineModel Cat3406CDITA

EnginePower(Maximum)

ISO14396 247kW 331hp

ISO14396(DIN) 335hp

NetPower(Rated)

ISO9249/SAEJ1349 226kW 303hp

ISO9249/SAEJ1349(DIN) 307hp

NetPower(Maximum)

ISO9249/SAEJ1349 239kW 320hp

ISO9249/SAEJ1349(DIN) 325hp

OperatingWeightStandard 37920kg 83,600lb

OperatingWeightLGP 35176kg 77,550lb

ShippingWeightStandard 28365kg 62,534lb

ShippingWeightLGP 29257kg 64,500lb

Features

Cat3406CEngineCat engines combine the power and durability toget work done with ease of serviceability and a high level of effi ciency.

DriveTrainPowershift transmission, differential steering, anddurable fi nal drives.

OperatorStationMachine controls and displays are all at the operators fi ngertips to maximize operator productivity and comfort.

ServiceabilityandCustomerSupportCombining easy-access, modular components with the Cat dealer repair and rebuild capability ensures timely machine repair and minimum downtime.

ContentsCabandControls.................................................3

Engine...................................................................4

PowerTrain..........................................................5

Structures.............................................................6

Undercarriage.....................................................7

WorkTools............................................................8

Serviceability.......................................................9

TotalCustomerSupport...................................10

D8RTrack-TypeTractorSpecifications.........11

D8RStandardEquipment.................................15

D8RAttachments..............................................16

Notes...................................................................17

CaterpillarhasbeentheworldleaderinTrack-TypeTractorsformorethanacentury.TheD8RcombineslegendaryCatdurabilityandreliabilitywithproventechnologydesignedtoimproveyourproductivityandyourbottomline.Fromruggedstructurestofullyintegratedengineandpowertrainsystems,theD8Risaworld-classtractorbuilttohelpyouproducethehighestqualityworkinavarietyofapplications.

CabandControlsProductivity,safety,comfort

OperatorEnvironmentTheD8Rfeaturesanisolation-mounted,pressurizedcab

thatreducesnoiseandvibration.Large,singlepanewindows

offergoodviewsallaroundthemachineformaximum

productivityandenhancedjobsitesafety.TheComfortSeries

seatisoffsetby15degreesforbettervisibility.Itfeaturesfully

adjustablepositioningandarmreststoprovideacomfortable

platformwhenworkingonsteepgradesorslopes.

Gaugesandwarninglightsonthein-dashinstrumentcluster

areeasytoread,evenindirectsunlight.TheCatElectronic

MonitoringSystem(EMS)providesalertindicatorsthat

monitorkeymachinecomponents.Thesystemprovides

threelevelsofwarningandsystemmonitoringsotheoperator

canstayinformedandstillconcentrateonthejob.

Heatingandairconditioningventsevenlydistributeairflow

withinthecab.Thecabispre-wiredfora12-voltor24-volt

radio,equippedwithtwospeakers,anantennaandaradio

mountrecessedintheheadliner.

DozerandRipperControlsAllD8Rcontrolsareergonomicallydesignedforlow-effort

andeaseofoperation.Thedozerandrippercontrollevers

featureload-sensinghydraulicsforaddedoperatorcomfortand

precisecontrol.Load-sensinghydraulicsadjustsimplement

andhydraulicpowertoincreasebothoperatorandmachine

efficiency.Thehydraulicsystemfeaturesadedicatedimplement

pumptoensureadequatehydraulicpowerisavailable.

TheD8Rfeaturesoptionaldualbladetiltforfurther

productivityenhancement.

Comfortable,Non-tiringOperationLoweffortcontrolsandaCatContourSeriesSeat,withwide

retractableseatbelt,providesanenvironmentthatreduces

fatigueandmaximizesproductivity.

SteeringandTransmissionControlTheoperatorusesasinglehandlecontroltoperformall

directionandgearselection.Thetillerbarcontrolallows

theoperatortoworkmorepreciselyincloseareasaround

structures,gradestakesandothermachines.Differential

Steeringprovidesthefinestmodulationintheindustryin

maintainingpowertobothsidesofthetrackduringaturn

andmaintainingconstantcenter-linespeed.Hydraulicsviaa

separatededicatedpump,areusedtosteerandhasadedicated

pumptodelivermoreload-movingpowerduringturns.

ClearFull-circleViewAtaperedhoodandnotchedfueltankgivetheoperator

aclearlineofsitetofrontandrearworkareas.

EnginePowerandreliability

Caterpillarisoneoftheworldsleadingenginemanufacturers.

EverycomponentofaCatengineiscarefullydesignedwith

precisecontrolsthatoptimizepowerandfuelefficiencywith

amodulardesigntoenhancetheenginesserviceability.

EngineLargedisplacementandhightorqueriseallowtheD8Rto

dozethroughtoughmaterial.Thehighdisplacementrating

allowslonghoursofcontinuousoperation.

Turbochargingandafter-coolingprovidehighhorsepower

whilekeepingRPMandexhausttemperatureslow.Theefficient,

directinjectionfuelsystemkeepsfuelcostsdown.Asteel

spacerbetweentheblockandheadeliminatestheneedfor

blockcounter-bores,extendingblocklife.

Enginecomponentslivelongerbecauseoilcooledpistonsand

full-lengthwatercooledcylinderlinersprovidemaximum

heattransferforlongercomponentlife.Thecylinderheads

alsoutilizeadditionalcoolantpassagestoprovidemaximum

coolingtotherearoftheengine.Stellite-facedvalves,through-hardenedcrankshaftjournalsandsteel-backed,copper-bonded

aluminumbearingshelpassurereliableperformanceinthe

toughestduty.

CoolingSystemTheAdvancedModularCoolingSystem(AMOCS)has

excellentcoolingcapacitywithincreasedairflow.AMOCS

allowsthemachinetobeoperatedinthemostdemanding

environments.Twopasscoolingincreasestherelevant

surfaceareaformaximumcoolingcapacity.

Servicingisquickandeasywithindividualradiatorcores

thatcanbequicklyreplaced.

4

PowerTrainPowerfulefficiency

Thepowershifttransmission,uniqueCattorquedivideranddifferentialsteeringarematchedwiththe

3406Cenginetodeliveroutstandingpowerandreliability.Theintegratedsystemefficientlyputsmore

powertotheground,utilizingmoreoftheavailablehorsepower,soyougetmoredonewithless.

DifferentialSteeringSystemDifferentialsteeringputsyouontheleadingedgeofproductivitybymaintainingpowertobothtracks

whileturning.Whenonetrackspeedsup,theotherslowsdownanequalamount.Maneuverability

especiallywithlargebladeloadsisimproved,aswellascycletimesinotherapplications.Greaterload

capacity,powerandspeedcontrolarepossibleinsoftunderfootconditionsonsteepslopesbecauseboth

tracksarepoweredduringturns.Asingletillerbarcontrolsalldirectionalandspeedfunctionsforease

ofoperation.

TorqueDividerAuniqueCattorquedividersends70percentofenginetorquethroughaconverterand30percent

throughadirectdriveshaftforgreaterdrivelineefficiencyandhighertorquemultiplication.TheD8R

torquedividerprovideshighreliabilityandlowdynamictorque.Componentsaredesignedtoabsorb

fullenginepower,anddeliveranoptimumcombinationofoperatorefficiencyanddrivelinereliability.

PlanetaryPowerShiftTransmissionThetransmissionincludesthreespeedsforwardandthreespeedsreverse,featuringthick,large

diameter,highcapacity,oil-cooledclutches.Theseclutchesprovidehighertorquecapacityandincrease

servicelife.Theplanetarypowershifttransmissionhasaproven,robustmechanicalcontrolsystem.

Modulartransmissionanddifferentialslideintorearcaseforservicingease,evenwhenaripperis

installed.Anoil-to-watercoolerprovidesmaximumcoolingcapacity,andforcedoilflowlubricates

andcoolsclutchpacksformaximumclutchlife.

5

StructuresRuggeddesignformaximumservice

ThefoundationofeveryCatdozerisaruggedframebuilttoabsorbhighimpactshockloadsand

twistingforces.Castingsprovideaddedstrengthtothemaincaseandequalizerbarsaddle.

Thepivotshaftrunsthroughthemainframeandconnectstherollerframeforindependentoscillation.

Thefull-lengthpivotshaftdistributesimpactloadsthroughoutthecase,reducingbendingstressesonthe

case.Thisdesigneliminatesalignmentproblemsandtheneedfordiagonalbracesontherollerframes.

Thepinnedequalizerbargivestherollerframestheabilitytooscillateupanddowntobettermatch

groundcontoursformaximumtractionandoperatorcomfort.Equalizerbarendpinsareoilfilled

withlimitedslipsealsforlongerlifeandreducedrepaircosts.Alowfriction,nomaintenancebushing

isusedinthesaddleconnectionandresilientpadsrestrainequalizerbaroscillation.

TheD8Ralsofeaturesthetag-linkdesigntomountthebladeclosertothemachineforexcellent

maneuverability,machinebalanceandbladepenetration.Thetag-linkprovidessolidlateralstability

andeliminatestheneedfordiagonalbracingsinceittransferssideloadstothemainframeinstead

ofdozerpush-arms.

6

UndercarriageProvenproductivity

Sinceitsground-breakingintroductionin1978,theCat

elevatedsprocketundercarriagearrangementsallowoptimized

balanceforbestpossibleperformanceineachapplication.

Thisisafield-provendesignthatoffersoutstandingmachine

performanceandlongercomponentlife.

Groundandimplementshockloadsaretransferredto

themainframetoprotectfinaldrives,axlesandsteering

componentsfromharshimpactsforlongercomponentlife.

Theelevatedsprocketdesigngivestheoperatorexcellent

sightlinestotheblade,sidesandbackofthemachine.

However,machinecenterofgravityremainslow,offering

excellentstability,balanceandtraction.

Thesuspendedundercarriagedesignabsorbsimpactloads

toreducetheshockloadstransferredtotheundercarriage

byupto50percentinuneventerrain.Thebogiesuspension

conformscloselytothegroundprovidingupto15percent

moregroundcontact,especiallyinhard,uneventerrain.

Highertractionmeanslessslippage,betterbalance,and

asmootherride.

Modularpowertraincomponentsmakeitquicktoremove

andrepairthetransmission,finaldrives,steeringdifferential

orbrakes.

Modularundercarriagecomponentssimplifyservice.

Lifetimelubricatedidlersandtrack/carrierrollersprovide

theabilitytore-useinternalcomponentsandrebuildorreshell

components.Thisreducesowningandoperatingcosts,and

savesrawmaterialsandnaturalresources.

SealedandLubricatedUndercarriageStandardontheD8RisSealedandLubricatedTrackwitha

CatPositivePinRetention(PPR)systemandisdesignedfor

high-impactandhighloadapplications.ThePPRisanexclusive

Caterpillardesignlocksthelinktothepintoensureinternal

lubricationbetweentrackpinandbushingismaintained.

SystemOneUndercarriageOptionalSystemOneundercarriagecanhelpreducetotal

undercarriageowningandoperatingcostsinmanyapplications.

SystemOnefeatureslifetimesealedandlubricatedcartridges

toeliminatebushingturns,andsprocketsrequireno

replacementduringthelifeofthechainanddesigned

toworkandwearasasystem.

1 2

3

1) Positive Pin Retention Sealed and Lubricated Track 2) SystemOne Undercarriage 3) Fully Suspended Bogie Undercarriage

7

WorkToolsEquippedforthejob

LoadSensingHydraulicsField-proven,load-sensinghydraulicsrespondtooperating

requirementsbyautomaticallyandcontinuallyadjusting

hydraulicpowertomaximizeworktoolefficiency.

CatBladesBladedesignfeaturesastrongbox-sectiondesign,madefrom

CatDH-2steelwithhightensilestrengthtostandupto

themostsevereapplications.Heavymoldboardconstruction

andhardenedbolt-oncuttingedgesandendbitsadd

strengthanddurability.

TheSemi-Universalbladeisbuiltfortoughapplications

wherepenetrationismoreimportantthancapacity.

TheSUbladecombinesaggressivepenetrating

andloadingmaterialcharacteristicswithbladewings

designedforsuperiorloadretentionandpenetration

intightlypackedmaterials.

OptionalbladesincludeanAngleandUniversalblades

forspecificapplications.

CatRippersSingleandmulti-shankadjustableparallelogramrippersare

madetopenetratetoughmaterialfastandripthoroughly

foruseinavarietyofmaterials.

Single-Shankrippersallowoperatorstoadjusttheshank

depthfromtheseatusinganoptionalsingleshankpin

puller.Largeupperframeviewholeimprovesrippertip

visibility.Heat-treatedspacerbarsintherippercarriage

extendpocketlifeandreduceshanknotching.Large

one-pieceshankisavailableindeepripconfiguration.

Multi-Shankripperstailorthetractortothematerial

byusingone,twoorthreeshanks.

RearCounterweightOptimizebalanceforbackingupsteepslopesorincreasing

performanceinheavydozingapplications.Propermachine

balancealsohelpstheundercarriagewearmoreevenly.

Rearcounterweightsarerecommendedif anotherrear

attachmentisnotspecified.

WinchSeeyourCatdealerforavailableWinchoptionsbestsuited

toyourapplications.

8

ServiceabilityStayupandrunning

Catmachinesaredesignedwithserviceabilityinmind.Modularcomponents,easyaccesstoregularservicepointsandfeatures

thatenablequickerdiagnosticsalladduptolessmaintenancetimeandmoretimeonthejob.

CatElectronicMonitoringSystem(EMS)TheD8Rfeaturesamonitoringsystemthatkeepstheoperatorinformedontheoperatingconditionsofthemachines.

Simpleeasytoreadgaugesandwarningsystemtotheoperatorprovidestheoperatorwithimportantfeedbackandallows

themtocontinuewiththetaskathand.TheGaugeGroupincludesenginecoolanttemperature,powertrainoiltemperature,

hydraulicoiltemperatureandfuellevel.TheEMSprovidesalertindicatorsthatmonitorcoolantflow,coolanttemperature,

engineoilpressure,transmissionoiltemperature,transmissionoilfilter,alternatorandhydraulicoilfilter.

SOSSMAnalysisMonitormachinehealthandidentifykeymaintenanceneedsbeforetheyleadtodowntimethroughCatSOSServices.

Catmachinesfeaturelivesamplingportsfortheengineoil,powertrainhydraulicsandcoolant.Catoilsamplingoffers

accurateanalysisusingtestsdesignedbyCaterpillarforCatproducts,aswellasknowledgeableinterpretationoftheresults.

BuilttobeRebuiltMajorcomponentsontheD8Rarebuilttoberebuilt,extendingtheusefullifeofthemachine.Machineandcomponent

rebuildssavemoney,andofferasustainabilityelementbysavingrawmaterialsandnaturalresources.SeeyourCatdealer

tolearnmoreaboutrebuildoptions.

9

TotalCustomerSupportRenowneddealersupport

OnlyCatmachinescomewiththeindustrysbestsalesand

servicesupporttheCatdealernetwork.Fromhelpingyou

choosetherightmachinetoongoingsupport,yourCatdealer

providesthebestinsalesandservice.Manageyourcostswith

preventivemaintenanceprogramslikeCustomTrackService,

SOSServicesandguaranteedmaintenancecontracts.

Stayproductivewithbest-in-classpartsavailability.YourCat

dealercanevenhelpwithoperatortrainingtohelpyouboost

yourprofits.

Andwhenitstimeforreplacement,yourCatdealercanhelp

yousaveevenmorewithGenuineCatRemanufacturedparts.

Remanufacturedpowertrainandhydrauliccomponentscostless,

butcomewiththesamewarrantyandreliabilityasnewproducts.

TalkwithyourCatdealertolearnmoreaboutreducingwaste

andsavingmoneythroughCatRemanufacturing.

10

D8RTrack-TypeTractorSpecifications

Engine Transmission Weights

EngineModel Cat3406CDITA*

EnginePower(Maximum)

SAEJ1995 252kW 338hp

ISO14396 247kW 331hp

ISO14396(DIN) 335hp

NetPower(Rated**)

ISO9249/ 226kW 303hp

SAEJ1349

ISO9249/ 307hp

SAEJ1349(DIN)

80/1269/EEC 226kW 303hp

NetPower(Maximum)

1.0Forward 3.5km/h 2.2mph

2.0Forward 6.2km/h 3.9mph

3.0Forward 10.8km/h 6.7mph

1.0Reverse 4.7km/h 2.9mph

2.0Reverse 8.1km/h 5.0mph

3.0Reverse 13.9km/h 8.6mph

D8R

D8RLGP

kg lb

1000 1000

160

70

140

60

OperatingWeight

Standard

37920kg 83,600lb

OperatingWeight

LGP

35176kg 77,550lb

ShippingWeight

Standard

28365kg 62,534lb

ShippingWeight 29257kg 64,500lb

LGP

Standardoperatingweightincludeslubricants,

coolant,fullfueltank,standardtrack,ROPS

cab,airconditioner,hydrauliccontrols,

SU-Blade,SS-Ripperandoperator.

LGPoperatingweightincludeslubricants,

1

2

3

ISO9249/ 239kW 320hp 120

coolant,fullfueltank,standardtrack,

ROPScab,airconditioner,hydraulicSAEJ1349 50

DRA

WB

AR

PULL

controls,SU-Blade,drawbarandoperator.100ISO9249/ 325hp Shippingweightincludeslubricants,coolant,40SAEJ1349(DIN) 80 10%fueltank,standardtrack,ROPScab,

80/1269/EEC 239kW 320hp airconditionerandhydrauliccontrols.30

60

Bore 137mm 5.4in

20 UndercarriageStandardStroke 165mm 6.5in 40

Displacement 14.6L 893in3 10 20 ShoeType ModerateService

*Note:Capableofmeetingnon-current

U.S.EPATier1orEUStageIemission

standards.

**Ratedspeed2,100rpm.

Netpoweradvertisedisthepoweravailable

attheflywheelwhenengineisequipped

withafanatmaximumspeed,aircleaner,

mufflerandalternator.

Noderatingsrequiredupto3800m

(12,500ft)altitude.

0 0

0 1 2 3 4 5 6 7 8 mph

0 2 4 6 8 10 12 km/h

SPEEDKEY

11stGear

22ndGear

33rdGear

NOTE:Usablepullwilldependuponweight

andtractionofequippedtractor.

ServiceRefillCapacities

FuelTank 625L 165gal

CoolingSystem 92L 24.3gal

EngineCrankcase 32.5L 8.6gal

PowerTrain 144L 38gal

FinalDrives(each) 13.5L 3.6gal

PivotShaft 40L 2.6gal

HydraulicTank 72L 19gal

WidthofShoe 610mm 24in

Shoes/Side 44

TrackRollers

perSide

8

GrouserHeight 78mm 3.1in

Pitch 216mm 8.5in

GroundClearance 613mm 24.1in

TrackGauge 2083mm 82in

LengthofTrack 3206mm 126in

onGround

GroundContact 3.91m2 6,060in2

Area

GroundPressure 95.1kPa 13.8psi

(ISO16754)

UndercarriageLGP

ShoeType ModerateService

WidthofShoe 965mm 38in

Shoes/Side 44

TrackRollers 8

perSide

GrouserHeight 78mm 3.1in

Pitch 216mm 8.5in

GroundClearance 613mm 24.1in

TrackGauge 2337mm 92in

LengthofTrack 3206mm 126in

onGround

GroundContact 6.19m2 9,593in2

Area

GroundPressure 55.8kPa 8.1psi

11

D8RTrack-TypeTractorSpecifications

HydraulicControls Blades Standards

PumpType Variable

Implements DisplacementPiston

PumpCapacityat 7000kPa 1,015psi

RPMatRated 2,100rpm

EngineSpeed

PumpOutput 239L/min 63.1

gal/min

LiftCylinderFlow 325L/min 85.9

gal/min

TiltCylinderFlow 170L/min 44.9

gal/min

Ripper 190L/min 50.2

CylinderFlow gal/min

HydraulicControls

SUBladeCapacity 8.70m3 11.38yd3

SUBladeWidth 3937mm 155.0in

UBladeCapacity 11.70m3 15.30yd3

UBladeWidth 4262mm 167.8in

ABladeCapacity 4.70m3 6.15yd3

ABladeWidth 4978mm 196.0in

SULGPBlade 8.50m3 11.12yd3

Capacity

SULGPBlade 4400mm 173.2in

Width

Bladecapacitiesaremeasuredto

recommendedpracticeastoSAEJ1265.

Ripper

ROPS/FOPS ROPS(RolloverProtective

Structure)offeredby

Caterpillarforthemachine

meetsROPScriteria

ISO3471:2008

FOPS(FallingObject

ProtectiveStructure)

meetsISO3449:2005

Brakes Brakesmeetthestandard

SAEJ/ISO10265:2008

Cab

Meetstheappropriate

standardsaslistedbelow

Thedeclareddynamicoperator

soundpressurelevelis85dB(A)when

ISO6396:2008isusedtomeasure

thevalueforanenclosedcab.Thecab

wasproperlyinstalledandmaintained.

Themeasurementwasconductedwith

thecabdoorsandthecabwindowsclosed.

Hearingprotectionmaybeneededwhenthe

machineisoperatedwithanopenoperator

stationforextendedperiodsorinanoisy

environment.Hearingprotectionmaybe

neededwhenthemachineisoperatedwith

acabthatisnotproperlymaintainedor

whenthedoorsandwindowsareopenfor

extendedperiodsorinanoisyenvironment.

Thedeclaredexteriorsoundpowerlevel

is116dB(A)whenthevalueismeasured

accordingtothedynamictestprocedures

andtheconditionsthatarespecifiedin

ISO6395:2008.

MainReliefValve

PressureSetting 24100kPa 3,500psi

HydraulicControlsMaximumOperatingPressure

Bulldozer,Lift 24100kPa 3,500psi

Bulldozer,Tilt 24100kPa 3,500psi

Ripper,Lift 24100kPa 3,500psi

Ripper,Tilt 24100kPa 3,500psi

Steering 38000kPa 5,511psi

Type

Adjustable

Parallelogram

Multi-Shank

NumberofPockets

3

Weightwith 4877kg 10,572lb

ThreeShanks

OverallBeamWidth 2464mm 97in

Maximum 780mm 30.7in

Penetration

Maximum 124.2kN 27,971lbf

PenetrationForce

PryoutForce 227.9kN 51,234lbf

Type Adjustable

Parallelogram

Single-Shank

NumberofPockets 1

Weightwith 4085kg 9,006lb

Standard

SingleShank

Maximum 1135mm 44.7in

Penetration

Maximum 127.4kN 28,641lbf

PenetrationForce

PryoutForce 222.8kN 50,087lbf

12

Dimensions(approximate)

3

7

1

2

4

5

6

1 TrackGauge

2 WidthofTractor OverTrunnions

WithoutTrunnions(standardshoewidth)

3 MachineHeight,fromTipofGrouser ExhaustStack

OROPS

EROPS

4 LengthofTrackonGround

5 LengthofBasicTractor

(taglinktrunniontotipofreargrouser)

Withfollowingattachmentsadd: RipperSingleShank(withtipatgroundline)

RipperMultiShank(withtipatgroundline)

SUBlade

UBlade

ABlade(notangled)

ABlade(angled25deg.)

Drawbar

6 HeightofGrouser

7 GroundClearance

Standard2083mm 82.0in

3057mm 120.4in

2642mm 104.0in

3489mm 137.4in

3520mm 138.6in

3500mm 137.8in

3206mm 126.2in

4554mm 179.3in

1519mm 59.8in

1613mm 63.5in

1844mm 72.6in

2241mm 88.2in

2027mm 79.8in

3068mm 120.8in

406mm 16.0in

78mm 3.1in

613mm 24.1in

Non-Suspended2082mm 82.0in

3050mm 120.1in

2642mm 104.0in

3480mm 137.0in

3511mm 138.2in

3491mm 137.4in

3258mm 128.3in

4554mm 179.3in

1519mm 59.8in

1613mm 63.5in

1844mm 72.6in

2241mm 88.2in

2027mm 79.8in

3068mm 120.8in

406mm 16.0in

78mm 3.1in

606mm 23.8in

LGP*2337mm 92.0in

3377mm 132.9in

3302mm 130.0in

3480mm 137.0in

3511mm 138.2in

3491mm 137.4in

3258mm 128.3in

4554mm 179.3in

N/A

N/A

1844mm 72.6in

N/A

N/A

N/A

406mm 16.0in

78mm 3.1in

606mm 23.8in

*StandardshoewidthofD8RLGPwithnon-suspendedundercarriageis965mm(38in).

13

D8RTrack-TypeTractorSpecifications

Bulldozers

Blade 8SU 8U 8A 8SULGPBladeCapacity m3 8.7 11.7 4.7 8.5

yd3 11.4 15.3 6.1 11.1

Width mm 3937 4262 4978 4400

ft/in 12'11" 14'0" 16'4" 14'5"

Height mm 1690 1740 1174 1612

ft/in 5'7" 5'9" 3'10" 5'3"

DiggingDepth mm 582 582 628 582

in 22.9 22.9 24.7 22.9

GroundClearance

MaximumTilt

Weight*

mm

ft/in

mm

ft/in

kg

lb

1231

4'0"

951

3'1"

4570

10,074

1231

4'0"

1028

3'5"

5135

11,320

1308

4'4"

729

2'5"

5099

11,241

1231

4'0"

914

3'0"

4850

10,694

Features

CuttingedgesareDH-2steelandendbitsareDH-3steelformaximumdurability.

Dozerliftcylindersmounttotopcornersofradiatorguardtoimprovemechanicaladvantage.

Singlelevercontrolsallblademovements.

Angledozeravailablewithtwotiltcylinders,whichreplacethetwotiltbraces.

*Doesnotincludehydrauliccontrols,butincludesbladetiltcylinder.

RippersHydraulictipadjustmentcylindersvaryshankangletoaidpenetrationandhelpliftandshatterrock.

SingleShank,Single DeepRipping Multi-ShankShank Arrangement Arrangement

OverallBeamWidth mm 2464

ft/in 8'1"

MaximumPenetrationForce*(shankvertical) kN 124.9 122.6 118.5

lb 28,060 27,560 26,628

PryoutForce kN 281.4 281.4 303.2

lb 63,237 63,237 68,128

MaximumPenetration(standardtip) mm 1158 1602 786

ft/in 3'10" 5'3" 2'7"

MaximumClearanceRaised mm 670 840 624

(undertip,pinnedinbottomhole) in

kg

lb

26

3

4140

9,119

33

3

4378

9,643

24.5

2

4100

9,031

NumberofShankHoles(verticaladjustment)

Weight(withouthydrauliccontrols)

TotalOperatingWeight(with8SUbladeandripper)** kg

lb

37875

83,500

38113

84,024

37835

83,394

*Multi-ShankRipperForcesmeasuredwithCenterToothinstalled.

**Operatingweightsarecalculatedbasedonsuspendedundercarriageconfigurationfoundintheweightssection(seepage11).

Note:Singleshank,deeprippingarrangementweightincludesrequiredpinpuller.

14

D8RStandardEquipment

Standardequipmentmayvary.ConsultyourCatdealerfordetails.

ELECTRICAL

75ampalternator

Back-upalarm

Forwardwarninghorn

Startingreceptacle

Fourmaintenancefree12Vbatteries

(24Vsystem)

Halogenlightingsystem

(twoforward,tworearward)

OPERATORENVIRONMENT

ROPS/FOPScanopy

EMS(ElectronicMonitoringSystem)

withtemperaturegauges

Fuellevelgauge

Clothsuspensionseat

Retractableseatbelt(76mm/3in)

Rearviewmirror

POWERTRAIN

Cat3406DieselDITAenginewith24volt

electricstarting

Blowerfan

Decelerator

Enginedoors

Fuelprimingpump

Muffler

AdvancedModularCoolingSystem

Extendedlifecoolant

Precleanerwithdustejector

Prescreener

Torquedivider

Powershifttransmission(3speed)

Fourplanetdoublereductionplanetary

finaldrives

Differentialsteeringwithdual-twist

tillercontrol

UNDERCARRIAGE

Suspension-typeundercarriage

Eight-rollertubulartrackrollerframe

Hydraulictrackadjusters

Trackguides

610mm(24in)PPRModerateService

(MS)grouserwithsealedandlubricated

track(44section)

OTHERSTANDARDEQUIPMENT

Independentsteeringandimplement

hydraulicpumps

Hydraulicoilcooler

Threevalvehydraulicsystemforbulldozer

andrippercontrol

Hingedradiatorandfanblast

deflectorguards

Hingedbottomguardswithfront

towingdevice

Liftcylinders(withtwoforwardlights)

15

D8RAttachments

Attachmentsmayvary.ConsultyourCatdealerfordetails.Weightsareapproximate.

AdditionalWeight AdditionalWeight AdditionalWeightkg lb kg lb kg lb

ELECTRICAL UNDERCARRIAGE REARATTACHMENTS

Light,Ripper 3 7 Pair,HDSealedand RearCounterweight 2335 5,148

Lights,Six(1) 12 26 Lubricated,PPR (Basic)

Lights,Ten(10) 24 53 610mm(24in),ES

610mm(24in),

471

348

1,038

767

RearCounterweight

(additionalslab)

572 1,261

GUARDS

FinalDriveSeals 18

FinalDrive,Clamshell 150

Fueland

HydraulicTank

256

BottomGuards 70

RearPowerTrain 129

RearTractor 74

Radiator,Heavy-Duty

Hinged

148

Screen,Rear,Cab 86

Screen,Rear,Canopy 65

Sweeps,Logging 310

OPERATORENVIRONMENT

Cab,ROPS/FOPS 550

AirConditioner,

UnderHood

57

AirConditioner,

FenderMounted

160

AirConditioner,

ROPSMounted

154

40

331

564

154

284

163

326

190

143

683

1,213

126

353

340

MS,TRAP

610mm(24in),

MS,Chopper

610mm(24in),SES

660mm(26in),MS

660mm(26in),ES

660mm(26in),ES,

TRAP

660mm(26in),SES,

TRAP

710mm(28in),MS

710mm(28in),MS,

TRAP

965mm(38in),ES

965mm(38in),ES,

TRAP

Pair,SystemOne

610mm(24in),ES

610mm(24in),ES,

CTR-HOLE

610mm(24in),SES

610mm(24in),SES,

CTR-HOLE

814

936

199

708

584

1101

398

290

2153

2030

538

429

1004

899

1,795

2,064

439

1,561

1,287

2,427

877

639

4,747

4,475

1,186

946

2,213

1,982

RipperSingle

Shank,(Standard

Arrangement)

4085

RipperSingle

Shank,(DeepRipping

Arrangement)

4260

RipperMultiShank

(includesoneshank)

4213

RipperShank

(forMultiShank

ripper)

332

BULLDOZERATTACHMENTS

RockGuard(8SUonly) 115

RockGuardand

WearPlate(8SUonly)

552

Pushplate(8SUonly) 234

TiltCylinders(8Aonly) 311

DualTiltCylinders

(8SUand8U)

1514

DualTiltCylinders

(8SULGP)

1545

DozerTiltLineGuards 36

9,006

9,392

9,288

732

254

1,217

516

686

3,338

3,406

79

POWERTRAIN

Fast-Fill,FuelSystem

Fast-Fill,Engine

8

5

17

11

660mm(26in),ES

660mm(26in),ES,

CTR-HOLE

660mm(26in),SES

775

666

1170

1,709

1,468

2,579

SPECIALARRANGEMENTS

WasteHandling

Arrangement

424 935

OilSystem 660mm(26in),SES, 1167 2,573

RadiatorCore 11 24 CTR-HOLE

ProtectorGrid 710mm(28in),ES 1012 2,231

Fan,Reversible

(manual)

Heater,Fuel

Heater,EngineCoolant

6

5

2

13

11

4

710mm(28in),SES

CarrierRollers(pair)

ArcticSeals,Rollers

andIdlers

1572

498

0

3,466

1,098

0

Thermoshield,

Laminated

11 24 Guard,TrackRoller

(non-Suspended)

299 659

LGPTrackRoller 70 154

Frames

16

Notes

17

Notes

18

19

D8RTrack-TypeTractor

FormorecompleteinformationonCatproducts,dealerservices,andindustrysolutions,

visitusonthewebatwww.cat.com

2012CaterpillarInc.

Allrightsreserved

Materialsandspecificationsaresubjecttochangewithoutnotice.Featuredmachines

inphotosmayincludeadditionalequipment.SeeyourCatdealerforavailableoptions.

CAT,CATERPILLAR,SAFETY.CAT.COM,theirrespectivelogos,CaterpillarYellow

andthePowerEdgetradedress,aswellascorporateandproductidentityusedherein,

aretrademarksofCaterpillarandmaynotbeusedwithoutpermission.

AEHQ6045-02(11-2012)

ReplacesAEHQ6045-01

D8R Track-Type TractorsFeaturesContentsCab and ControlsEnginePower TrainStructuresUndercarriageWork ToolsServiceabilityTotal Customer SupportD8R Track-Type Tractor SpecificationsEngineTransmissionService Refill CapacitiesWeightsUndercarriage StandardUndercarriage LGPHydraulic ControlsHydraulic Controls Main Relief ValveHydraulic Controls Maximum Operating PressureBladesRipperStandardsDimensionsBulldozersRippers

D8R Standard EquipmentD8R AttachmentsNotes