Product:WHEELSKIDDER
Model:528WHEELSKIDDER51S
Configuration:528SKIDDER51S00288-00736(MACHINE)POWEREDBY3306ENGINE
OperationandMaintenanceManual 528SKIDDERANDGRAPPLESKIDDER
MediaNumber-SEBU6089-01PublicationDate-01/06/1990DateUpdated-11/10/2001
CoolingSystemSpecifications
CoolantInformation
Dieselengineoperatingtemperatureshaveincreasedtoimproveengineefficiency.Thismeans propercoolingsystemmaintenanceisespeciallyimportant.Overheating,overcooling,pitting, cavitationerosion,crackedheads,pistonseizures,andpluggedradiatorsareclassiccoolingsystem failures.Infact,coolantisasimportantasthequalityoffuelandlubricatingoil.
NOTICE
Caterpillarrecommendsthatthecoolantmixturecontainaminimum of30%CaterpillarAntifreeze,orequivalent.Liquidsupplemental coolantadditivemustbeadded,whennotusingCaterpillarAntifreeze, whichcontainstheproperadditive.
Neveraddcoolanttoanoverheatedengine,enginedamagecanresult. Allowtheenginetocoolfirst.
Allwateriscorrosiveatengineoperatingtemperature.Thecooling systemshouldbeprotectedwitha3%to6%concentrationofliquid supplementalcoolantadditiveatalltimes,regardlessofthe concentrationofantifreeze.
Excessivesupplementalcoolantadditivegreaterthanthe recommended6%,togetherwithconcentrationsofantifreezegreater than65%cancausedepositstoformandcanresultinradiatortube blockage,overheating,and/orwaterpumpsealdamage.
Donotuseliquidsupplementalcoolantadditiveorelementsor antifreezewithDowtherm209Full-Fillcoolant.Dowtherm209FullFillcoolantisnotcompatiblewithotherantifreezeandcoolant mixtures.
Dowtherm209full-fillcoolantwilllowerthewaterpumpcavitation temperatureandcoolantboilingpoint.Theseloweredtemperatures willcauseoverheatingatalowerambienttemperaturethanan ethyleneglycolandwatermix.IfDowthermisused,followthe
instructionsprovidedanduseonlytheinhibitorpackagerecommended bythesupplier.
Ifthemachineistobestoredin,orshippedto,anareawithfreezing temperatures,thecoolingsystemmustbeprotectedtothelowest expectedoutside(ambient)temperature.
Theenginecoolingsystemisnormallyprotectedto-28°C(-20°F)with CaterpillarAntifreeze,whenshippedfromthefactoryunlessspecial requirementsaredefined.
Checkthespecificgravityofthecoolantsolutionfrequentlyincoldweathertoensureadequate protection.
Cleanthecoolingsystemifitiscontaminated,iftheengineoverheatsoriffoamingisobservedin theradiator.
Coolantshouldbedrained,thesystemcleanedandnewcoolantaddedevery3000servicehoursor twoyears.WhennotusingCaterpillarAntifreezeandsupplementalcoolantadditiveas recommended,thedrainperiodmustbeshortenedto1500servicehoursoroneyear.
Fillingatover20liters(5U.S.gallons)perminutecancauseairpocketsinthecoolingsystem.
Afterdrainingandrefillingthecoolingsystem,operatetheenginewiththeradiatorcapremoved untilthecoolantreachesnormaloperatingtemperatureandthecoolantlevelstabilizes.Add coolantasnecessarytofillthesystemtotheproperlevel.
Neveroperatewithoutathermostatinthecoolingsystem.Coolingsystemproblemscanarise withoutathermostat.
Referto"KnowYourCoolingSystem,"formSEBD0518and"CoolantandYourEngine"form SEBD0970,formoredetailedspecifications.
CoolantWater
Hardwater,orwaterwithhighlevelsofcalciumandmagnesiumions,encouragestheformation ofinsolublechemicalcompoundsbycombiningwithcoolingsystemadditivessuchassilicates andphosphates.
Thetendencyofsilicatesandphosphatestoprecipitateout-of-solutionincreaseswithincreasing waterhardness.Hardwater,orwaterwithhighlevelsofcalciumandmagnesiumionsencourages theformationofinsolublechemicals,especiallyafteranumberofheatingandcoolingcycles.
Caterpillarpreferstheuseofdistilledwaterordeionizedwatertoreducethepotentialandseverity ofchemicalinsolubility.
Usingwaterthatmeetstheminimumacceptablewaterrequirementmaynotpreventdropoutof thesechemicalcompoundstotally,butshouldminimizetheratetoacceptablelevels.
Antifreeze NOTICE
Caterpillarrecommendsthatthecoolantmixcontainaminimumof 30%CaterpillarAntifreeze,orequivalentandacceptablewaterto maintainanadequatewaterpumpcavitationtemperatureforefficient waterpumpperformance.
Premixcoolantsolutiontoprovideprotectiontothelowestexpected outside(ambient)temperature.Pureundilutedantifreezewillfreezeat -23°C(-10°F).
Onlyuseagreaterconcentration(above30%)ofCaterpillar Antifreezeasneededforanticipatedoutside(ambient)temperatures. Donotexceedacoolantmixtureof60%antifreezetowatersincea concentrationabove60%antifreezewillreducetheengine'sfreeze protectionandincreasethepossibilityofdepositformationinthe coolingsystem.
UseCaterpillarAntifreezeorGMSpecification6038-MAntifreeze.CaterpillarAntifreezeis availablethroughyourCaterpillardealerinquantitiesthatfollow.
Mostcommercialantifreezesareformulatedforgasolineengineapplicationsandwill,therefore, havehighsilicatecontent.CaterpillarAntifreezeisformulatedwithalowsilicatecontentandthe propercoolantadditivesforheavydutydieselengines.
GMSpecification6038-Misalowsilicateantifreeze,butsupplementalcoolantadditivemustbe added.
ThemajoradvantagesofCaterpillarAntifreezeare:
*Significantlyreduceswaterpumpsealleakageproblemscausedbyoverconcentrationof chemicaladditives.
*Thereisnoneedtoaddsupplementalcoolantadditiveoninitialfillwhichmustbedone withcurrentcommerciallyavailableantifreezes.
*Highsilicateantifreezesusedwithasupplementalcoolantadditivecancauseabuild-upof solidsoveraperiodoftimewhichcancauseplugging,lossofheattransfer,andwaterpump sealdamage.
Makeproperantifreezeadditions.
Addingpureantifreezeasamakeupsolutionforcoolingsystemtop-upisanunacceptable practice.Itincreasestheconcentrationofantifreezeinthecoolingsystemwhichincreasesthe concentrationofdissolvedsolidsandundissolvedchemicalinhibitorsinthecoolingsystem.Add antifreezemixedwithwatertothesamefreezeprotectionasyourcoolingsystem.
UsethechartbelowtoassistindeterminingtheconcentrationofCaterpillarAntifreezetouse.
SupplementalCoolantAdditive
Supplementalcoolantadditiveisnecessarytopreventrust,scale,pittingand/orcorrosionof enginepartsthatcoolantcomesincontactwith.MostantifreezesolutionsDONOTcontain sufficientsupplementalcoolantadditive.
NOTICE
Alwaysaddsupplementalcoolantadditiveorequivalenttothecoolant, orinstallaCaterpillarsupplementalcoolantadditiveelement(if equipped).Neverusecoolantonly,exceptifCaterpillarAntifreezeis beingusedwhichcontainstheadditive.Inthiscase,nosupplemental coolantadditiveisneededoninitialfill,butisnecessaryona maintenancebasis.
Usesupplementalcoolantadditiveorasupplementalcoolantadditive element(ifequipped).Thiswillprovidea3%to6%concentrationin thecoolingsystemtohelppreventcorrosion.
Topreventoverinhibitingtheengine'scoolingsystem,neveruseboth theliquidsupplementalcoolantadditiveandthesupplementalcoolant additiveelement(ifequipped)atthesametime.Theuseofthese additivestogethercouldresultinexcessiveconcentrationthatwould exceedtheCaterpillarrecommendedmaximumof6%.
Excessiveconcentrationofanadditivecanformdepositsonthehigher temperaturesurfacesofthecoolingsystemandcreateabarrierthat reducestheengine'sheattransfercharacteristics.Reducedheat transfercouldcausecrackingofthecylinderheadandotherhigh temperaturecomponents.Excessiveconcentrationsofadditivecould alsoacceleratewaterpumpsealwear.
SupplementalcoolantadditiveisneededwhennotusingCaterpillar Antifreezeforpremixedcoolantsolution.
LiquidsupplementalcoolantadditivecanbepurchasedfromyourCaterpillardealer.Followthe instructionsonthecontainer.
NOTICE
DONOTaddsupplementalcoolantadditiveatinitialfillwhenusing CaterpillarAntifreeze.CaterpillarAntifreezecontainsthenecessary supplementalcoolantadditiveprecharge.Additionofsupplemental coolantadditivecouldresultinanoverconcentration.
OninitialfillofaneworreconditionedengineifCaterpillarAntifreezeisnotused,add1liter(1 quart)ofsupplementalcoolantadditive,orequivalent,foreach30liters(8U.S.gallons)sothat thecoolingsystemwillhavea3%to6%concentrationofsupplementalcoolantadditive.
Tomaintaina3%to6%concentrationofadditive,addliquidsupplementalcoolantadditiveor installamaintenancesupplementalcoolantadditiveelement(ifequipped),every250servicehours oroilchange,whicheveroccursfirst.Usethe8T5296SupplementalCoolantAdditiveTestKitto checkforconcentration.
Iftheengineisnotequippedwithspin-onelement,add.25liter(.53pint)ofsupplementalcoolant additiveforeach38liters(10U.S.gallons)ofcoolantcapacitytomaintainthe3%to6% concentrationofadditive.
CoolingSystemCleaning
CaterpillarCoolingSystemCleanersaredesignedtocleanthesystemofharmfulscaleand corrosion.Itdissolvesmineralscale,corrosionproducts,lightoilcontaminationandsludge.
Cleanthesystemaccordingtothemaintenanceintervalchart,orwheneverthecoolantisdirtyor foaming.
CoolingsystemcleanersareavailablefromyourCaterpillardealerinthequantitieslistedbelow. Followthelabeldirectionsforproperusage.
Copyright1993-2025CaterpillarInc. AllRightsReserved. PrivateNetworkForSISLicensees.
SatMay1716:58:23UTC+05302025
Product:WHEELSKIDDER
Model:528WHEELSKIDDER51S
Configuration:528SKIDDER51S00288-00736(MACHINE)POWEREDBY3306ENGINE
OperationandMaintenanceManual 528SKIDDERANDGRAPPLESKIDDER
MediaNumber-SEBU6089-01PublicationDate-01/06/1990DateUpdated-11/10/2001
Walk-AroundInspection
InspectMachine
Foryourownsafetyandmaximumservicelifeofthemachine,makeathoroughwalk-around inspectionbeforemountingthemachinetostarttheengine.
Lookaroundandunderthemachineforsuchitemsaslooseormissingbolts,trashbuildup,oil, coolantorfuelleaks.Inspecttheconditionandinflationofthetiresandconditionoftheblade.
Removeanytrashanddebris.Adjusttireinflationasneeded.Haveanynecessaryrepairsmade, looseconnectionsandpartstightenedtotheirspecifiedtorquesandanymissingpartsreplaced beforestartingtheengineoroperatingthemachine.
Fordetailedinstructions,seethetopic,"Walk-AroundInspection"under"BeforeStartingthe Engine"intheoperationsectionofthisguide.
1.Measuretheoillevel.
2.Theoillevelcanbemeasuredwiththeenginestoppedortheenginerunningandtheoilwarm.
Withtheenginestopped,theoillevelshouldbeabovetheADDmarkontheENGINESTOPPED sideofthedipstick.
Withtheenginerunning,theoillevelshouldbebetweentheFULLandtheADDOILmarkonthe ENGINERUNNINGsideofthedipstick.
3.Addoil,ifnecessary,tobringtheoilleveltothespecifiedlevel.
CheckOilLevel
Atoperatingtemperature,thehydraulictankishotandunderpressure.
Hotoilcancauseburns.
Removethefillcaponlywhentheengineisstopped,andthecapiscool enoughtotouchwithyourbarehand.Removethefillcapslowlyto relievepressure.
1.Themachinemustbelevel,theoilwarmandtheenginerunningatlowidle.
2.LockthetransmissioncontrolleverinNEUTRAL.Applytheparkingbrake.Lowerthedozer bladewithslightdownpressure.
3.Observetheoillevelinthehydraulictanksightgauge.MaintaintheoillevelbetweentheADD andtheFULLmarkinthesightgauge.
AirReservoir
DrainMoistureandSediment
Openthedrainvalve.Allowallcondensationtodrain.Closethedrainvalve.Ifthemachineis equippedwithanairdryer,thismaintenancecanbedoneevery50servicehoursoronceaweek.
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Atoperatingtemperature,theenginecoolantishotandunderpressure. Steamcancausepersonalinjury.
Checkthecoolantlevelonlyaftertheenginehasbeenstoppedandthe fillcapiscoolenoughtotouchwithyourbarehand. Removethefillcapslowlytorelievepressure.
Coolingsystemconditionercontainsalkali.Avoidcontactwiththeskin andeyestopreventpersonalinjury.
1.Observethecoolantlevelwiththeenginestoppedandcool.Removetheradiatorcapslowlyto relievethepressure.
2.Maintainthecoolantlevelwithin13mm(1/2inch)ofthebottomofthefillpipe.
3.Inspecttheradiatorcapgasketandreplaceitifitisdamaged.Installtheradiatorcap.
Transmission
MeasureOilLevel
Hotoilandcomponentscancausepersonalinjury.Donotallowhotoil orcomponentstocontactskin.
Themachinemustbeparkedonlevelgroundandtheenginerunningatlowidle.Theoilmustbe warm.
1.LockthetransmissioncontrolleverinNEUTRAL.
2.Lowerthedozerbladewithslightdownpressure.Applytheparkingbrake.
Measuretheoillevel.
3.MaintaintheoillevelbetweentheFULLandADDOILmarksonthedipstick.
IndicatorsandGauges
TestforProperFunction
Donotoperatethemachine,ifanyoftheindicatorsorgaugesdonot register.Haveanynecessaryrepairsmadebeforereturningthe machinetooperation.
Inspectallindicatorsandgaugesforcorrectfunction.
Copyright1993-2025CaterpillarInc. AllRightsReserved. PrivateNetworkForSISLicensees.
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Product:WHEELSKIDDER
Model:528WHEELSKIDDER51S
Configuration:528SKIDDER51S00288-00736(MACHINE)POWEREDBY3306ENGINE
1.Openthedrainvalve. 2.Allowallwaterandsedimenttodrainthroughthedrainportintheframe.
Closethedrainvalve.
1.Disconnectthesteeringframelocklink.Starttheengine.
2.Turnthemachinefullrightorleft.
3.Lowerthedozerblade,applytheparking/secondarybrakeandstoptheengine.
4.Lubricateonefitting.
Straightenthemachineandconnectthesteeringframelocklinkafter servicingthemaindriveshaftspline.
MainDriveShaftSupportBearings
LubricateFittings
1.Lubricatethefrontbearingthroughthefittingintheblockinfrontoftherearcase.
2.Lubricatetherearbearingthroughthefittinginthecenterofthedriveshaft.
FrameUpperandLowerPivotBearings
LubricateFittings
1.Lubricateonefittingattheupperpivotpin.
2.Lubricateonefittingatthelowerpivotpin.
HitchOscillationBearing
LubricateFittings
Lubricatefrontandrearbearing.Lubricateonefittingontopofrearcase.
Lubricateonefittinglocatedonthefrontrightsideofoscillationhitcharea.
LubricateFittings
1.Lubricateonefittinginthefrontspline,throughtheaccessholeinthefrontfloorplate.
2.Lubricateonefittinginthecenterspline,locatedinthepivotarea.
3.Lubricateonefittingintherearspline,throughtheaccessholeintheshaftcoverplate.
SteeringCylinderBearings
LubricateFittings
1.Lubricateonefittingattherodendofeachcylinder.
2.Lubricateonefittingattheheadendofeachcylinder.Totaloffourfittings.
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Product:WHEELSKIDDER
Model:528WHEELSKIDDER51S
Configuration:528SKIDDER51S00288-00736(MACHINE)POWEREDBY3306ENGINE
OperationandMaintenanceManual 528SKIDDERANDGRAPPLESKIDDER
MediaNumber-SEBU6089-01PublicationDate-01/06/1990DateUpdated-11/10/2001 Every250ServiceHoursorMonthly
Batteries
Clean-CheckElectrolyteLevel
Batteriesgiveoffflammablefumesthatcanexplode.
Donotsmokewhenobservingthebatteryelectrolytelevels.
Electrolyteisanacidandcancausepersonalinjuryifitcontactsskinor eyes.
Alwayswearprotectiveglasseswhenworkingwithbatteries.
1.Removerightandleftsideengineguards.
2.Cleanthetopandallpostsofthebatteries.Coatallpostswithpetroleumjelly.
Accordingtoyourbatterytype,checktheelectrolytelevelusingthechartbelow.
Tightenthebatteryretainersevery1000hoursonallbatteries.
Attheproperchargingrate,inamoderateclimate,abatteryshouldnotrequiremorethan30cc(1 ounce)ofwaterpercellperweek.Checkthecellsweeklyinextremetemperatures,cellwater usagecouldbehigher.
3.Inspecttheelectrolytelevelineachbatterycell.Maintaintheleveltothebottomofthefill openingswithdistilledwater.Ifdistilledwaterisnotavailable,usecleandrinkingwater.
Hotoilandcomponentscancausepersonalinjury.Donotallowhotoil orcomponentstocontactskin.
1.Openthecrankcasedrainvalve.Allowtheoiltodrain.Closethedrainvalve.
2.Removethefilterelementwithastrap-typewrench.
3.Cleanthefilterhousingbase.Makesurealloftheoldfiltergasketisremoved.
4.Applyalightcoatofengineoiltothegasketofthenewfilter.
5.Installthenewfilterbyhand.Whenthegasketcontactsthefilterbase,tightenthefilter1/2turn more.
6.Fillthecrankcasewithnewoil.Seethe"RefillCapacities"chart.
7.Starttheengineandallowtheoiltowarm.Checkforleaks.
8.MeasuretheoilwiththedipsticktomakesuretheoiladdedisbetweentheADDandFULL marks.
CoolingSystem
AddCoolantConditioner
Atoperatingtemperature,theenginecoolantishotandunderpressure. Steamcancausepersonalinjury.
Checkthecoolantlevelonlyaftertheenginehasbeenstoppedandthe fillcapiscoolenoughtotouchwithyourbarehand.
Removethefillcapslowlytorelievepressure.
Coolingsystemconditionercontainsalkali.Avoidcontactwiththeskin andeyestopreventpersonalinjury.
NOTICE
Allwateriscorrosiveatengineoperatingtemperature.UseCaterpillar coolantconditionertotreattheethyleneglycolcoolantsolution.
DonotuseCaterpillarcoolingsystemconditionerwithDowtherm209 Full-Fillcoolant.Followtherecommendationsprovidedwith Dowtherm209Full-Fillcoolant.
Donotaddliquidcoolingsystemconditionermonthlyunlessthe machinehasactuallyoperated250servicehours.Addingcooling systemconditionerbefore250servicehourswillgiveanexcessive concentrationofconditioner.
Excessivecoolantconditioner(greaterthantherecommended6% initialfill)togetherwithconcentrationsofantifreezegreaterthan65%
causeadeposittoformandmayresultinradiatortubeblockageand overheating.
Ifthecoolingsystemwasdrainedandrefilled,seethetopic"CoolingSystem"under"Every2000 ServiceHoursor1Year."
Itmaybenecessarytodrainenoughcoolanttoallowfortheadditionofcoolingsystem conditioner.
Add1/2liter(1pint)ofCaterpillarcoolingsystemconditioner,orequivalent,tothiscooling system.Thiswillmaintaintherequired3%concentrationofconditioner.
Make-upcoolantshouldcontaina3%concentrationofconditioner-1literofconditionerper33 litersofwater(1pintper4gallons).
1.Loosentheradiatorcapslowlytorelieveanypressure.Removetheradiatorcap.
2.Add1/2liter(1pint)ofcoolingsystemconditioner.
3.Inspecttheradiatorcapgasketandreplaceit,ifitisdamaged.
4.Installtheradiatorcap. FanBearing
Inspect/Adjust-Replace
Inspecttheconditionandtheadjustmentofbelts.Replacethebeltsinsetsonly,ifoneormoreare wornordamaged.
1.Inspecttheconditionandtheadjustmentofalternatorbelts.Thebeltsshoulddeflect14to20 mm(9/16to13/16inch)under110N(25lb)force.
2.Loosenalternatorbracketandmountingbolts.Movethealternatorinoroutasnecessary.
3.Tightenthealternatorbracketandmountingbolts.Checkthebelt'sdeflection.Readjustif necessaryuntilthecorrectdeflectionisattained.
BrakeFluidReservoirs
CheckFluidLevel
1.Locatedintheleftrearcorneroftheoperator'scompartment.
2.Removethecoversfromthefront(1)andrear(2)brakemastercylinderreservoirs.Inspectthe brakefluidlevel.Thelevelmustbewithin1cm(1/2inch)ofthetopofthereservoirs.Addbrake fluid,ifnecessary.
3.Cleanandinstallthecovers.
4.Testthebrakes.Seethenexttwotopicsonbraketesting.
5.Iftheredlightonthedashcomesonoriftheredindicatoronthemastercylindershowsafter thebrakefluidreservoirshavebeeninspectedandfilled.Inspectthebrakepadsforwearandthe systemforleaks.Makeanynecessaryrepairs,beforethemachineisreturnedtowork. ServiceBrakes
TestHoldingAbility
Besuretheareaaroundmachineisclearofpersonnelandobstructions.
Besurethesteeringframelocklinkisinstoredposition.
Testthebrakesonadry,levelsurface.
Fastentheseatbeltbeforetestingthebrakes.
Thefollowingtestsaretodetermineiftheservicebrakeisfunctional.Thesetestsarenotintended tomeasuremaximumbrakeholdingeffort.Brakeholdingeffortrequiredtoholdamachineata specificenginerpmwillvaryfrommachinetomachineduetodifferencesinenginesetting,power trainefficiency,etc.,aswellasdifferencesinbrakeholdingability.
Enginerpmatbeginningofmachinemovement,withservicebrakeapplied,shouldbecompared againsttheenginerpmyourspecificmachinewasabletoholdonapriortest,asanindicationof systemdeterioration.
1.Starttheengine,andraisethedozerbladeslightly.Applytheservicebrakeandreleasethe parking/secondarybrake.
2.Withtheservicebrakeapplied.Movethetransmissionto2ndspeedforward.
3.Graduallyincreasetheenginespeedtohighidle.Themachineshouldnotmove.
This is the sample of the manual Click on the download link for complete Manual