Product:WHEELLOADER
Model:988BWHEELLOADER50W
Configuration:988BWHEELLOADER50W00001-06040(MACHINE)POWEREDBY3408ENGINE OperationandMaintenanceManual
MediaNumber-SEBU5402-00PublicationDate-04/06/1976DateUpdated-11/10/2001
AfterStarting
1.KeepenginespeedatlowidleuntiloilpressureisinNORMAL(Green)range.Ifoilpressuredoes notregisterinGreenrangewithin10seconds,stopengine,investigateandcorrectcause.
2.Operateengineatlowidlefor5minutes.Donotengagehydrauliccontrolsduringthisperiod.
NOTE:Measureengineoilandtransmissionoillevelswithmachinelevel,engineatlowidleandoil atnormaloperatingtemperature.
3.Measureengineoillevel.OillevelshouldbebetweenLOWandFULLmarksonLOWIDLEside ofdipstick.
4.Measuretransmissionoillevel.OillevelshouldbebetweenLOWandFULLmarksondipstick.
5.VOLTMETERshouldregisterintheGREENrange.ItneedleisconstantlyintheCHGorBATT rangesofthemeter,stopengine,investigateandcorrectcause.
6.FUELPRESSUREgaugeshouldbeintheGREENrange.IfneedleisinREDrange,withengine warmandrunningunderlightload,stopengineandservicethefuelfilters.
7.WATERTEMPERATUREgaugeshouldbeinGREENrange.IftheneedleisintheREDrange, stopengine,inspectcoolingsystemforleaks,obstructionsorblockage.
8.TORQUECONVERTERTEMPERATUREgaugeshouldbeintheGREENrange.Ifneedleisin theREDrange,stopengineandmeasuretransmissionoillevel.
9.NOCOOLANTFLOWindicatorshouldbeOFF.
NOTE:Whencoolantflowisstopped,theindicatorwillcomeONandahornwillsound continuously.
Ifthisoccurs,stopthemachine,stoptheengineandinspectforleaks,collapsedhoses,andother blockagesandobstructions.
10.PLUGGEDFILTERindicatorswillcomeONduringoperationwhentherespectivefilterbecomes plugged.
NOTE:IfthePLUGGEDFILTERindicatorscomeON,replaceorcleanfilters,seeLUBRICATION andMAINTENANCEGUIDEforproperinstructions.
Incoldtemperaturesoilbecomesthickandtheindicatorsmaymomentarilycomeon.Itisnot necessarytochangethefiltersundertheseconditions.
11.HYDRAULICOILHIGHTEMPERATUREindicatorwillcomeONwhentheoiltemperatureis abovenormaloperatingtemperature.
NOTE:IfthisindicatorcomesON,reduceload,observehydraulicoillevelsightgaugeforproperoil level.Stopengineandinspectoilcoolercoreforobstructions.
12.LOWOILBRAKEPRESSUREindicatorwillflashONandOFFiftheaccumulatoroilpressure isbelownormaloperatingpressure.
13.Iftheindicatorisflashing,increaseenginespeedtohighidlefor3minutestoincrease accumulatorpressure.
IfthisindicatordoesnotgoOFF,donotoperatemachine.Stopengine andinspectforbrokenhoses,looseconnectionsandobservehydraulic tankoillevelsightgaugeforproperlevel.
Correctcausebeforeoperatingmachine.
14.PARKINGBRAKEONindicatorwillcomeONandahornwillsoundcontinuouslywhen parkingbrakeisappliedandtransmissionengaged.
Donotoperatemachinewithparkingbrakeapplied.Damageto parkingbrakewillresult.
15.ALTERNATORindicatorwillcomeONifamalfunctionoccursinthechargingsystem.Stop engine,inspectalternatorbeltandelectricalsystem.
16.FULLTORQUEindicatorwillcomeONwhenevertheVCTCcontroloverrideswitchison.
17.PRESTARTFLUIDLEVELindicatorswillnotfunctionaftertheengineisrunning.
18.LOWFUELLEVELindicatorwillcomeONwhenthefuellevelis10%,orless,oftankcapacity.
19.SUPPLEMENTALSTEERING,ifequipped,indicatorwillcomeONwhenthemachineis operatedonsupplementalsteering.
IfthisindicatorcomesON,stopandparkmachine.Inspectsteering systemandrepair,ifnecessary,beforereturningmachinetooperation.
Duringoperationfrequentlyobservegaugesandindicators.AllgaugesmustindicateNORMAL (Green)andallindicatorsmustfunctionproperly.
Copyright1993-2023CaterpillarInc. AllRightsReserved. PrivateNetworkForSISLicensees.
TueSep510:12:35UTC+05302023
Product:WHEELLOADER
Model:988BWHEELLOADER50W
Configuration:988BWHEELLOADER50W00001-06040(MACHINE)POWEREDBY3408ENGINE
OperationandMaintenanceManual 988BWHEELLOADER(50W1-3776)
MediaNumber-SEBU5402-00PublicationDate-04/06/1976DateUpdated-11/10/2001
BeforeStarting
Walk-AroundInspection
Foryourownsafety,andmaximumservicelifeofthemachine,makeathoroughinspectionbefore mountingthemachineorstartingtheengine.Lookunderandaroundthemachineforsuchitemsas looseormissingbolts,trashbuild-up,oil,coolantorfuelleaks,conditionandinflationoftiresand conditionofthebucket.
BeforeStartingtheEngine
ThismachineisequippedwithaPrestartFluidCompartmentLevelIndicatorSystem.These indicatorsarenotoperativewiththeenginerunning.Thissystemdoesnotreplacetheuseofdipsticks orsightgaugelevels.Itisintendedforusebytheoperator.Maintenancepersonnelshouldusethe dipsticksandsightgaugestoverifythefluidlevels.
Topreventpossibleinjurytonearbypersonnel,besureareaaroundthe machineisclearofpersonnelandobstructions.
1.Disconnectsafetyrodandfastentoretainingplates.
2.Measuretireinflationpressure.SeeTIREINFLATIONINFORMATION.
3.Measuretransmissionoillevel.OillevelshouldbeabovetheFULLmarkondipstick.
4.Observecoolingsystemcoolantlevel.Coolantlevelshouldbewithin1/2inch(1cm)ofbottomof fillpipe.
5.TurnPOWERswitchtoTESTPANELLIGHTSposition.Allindicatorlights,exceptFULL TORQUE,shouldcomeon.Indicatorlightsthatdonotcomeonmaybeburnedoutandmustbe replaced.RefertotheLUBRICATIONandMAINTENANCEGUIDEforthismachine.
6.TurnPOWERswitchtotheONposition.
NOTE:DONOTSTARTTHEENGINE.
7.LOWFUELLEVELindicatorshouldcomeONifthefuellevelisat,orlessthan,10%offueltank capacity.Addfuelifnecessary.
8.HIGHFUELLEVELindicatorshouldcomeONifthereisenoughfuelfora10hourdayof operation.IfindicatordoesnotcomeON,addfuelasnecessary.
9.LOWENGINEOILLEVELindicatorshouldcomeONiftheengineoillevelishalfwaybetween theLOWandFULLmarksondipstick.Addoilifnecessary.
10.LOWHYDRAULICOILLEVELindicatorshouldcomeONifthehydraulictankoillevelisat, orbelow,theADDCOLDmarkinsightgauge.Addoilifnecessary.
11.NOCOOLANTFLOWindicatorshouldbeON.
12.ThePLUGGEDFILTERindicatorsshouldnotbeon.
This is the sample of the manual Click on the download link for complete Manual
13.HYDRAULICOILHIGHTEMPERATUREindicatorshouldnotcomeon.
14.SUPPLEMENTALSTEERING,ifequipped,indicatorshouldbeON.
15.LOWOILBRAKEPRESSUREindicatorwillcomeONwhenbrakeshavebeenappliedseveral times,andpressurehasnotbeenrestored.(Accumulatoroilpressurebelownormal.)
16.PARKINGBRAKEONindicatorshouldbeONiftheparkingbrakeisengaged.
18.FULLTORQUEindicatorwillbeONiftheVCTCoverrideswitchison.
19.Foraccurateverificationof... ...fluidlevelsforoilorfueladditions,usethefollowing:
a.Measurefuellevel.FuellevelshouldbetoFULLmarkondipstick.
b.Measureengineoillevel.OillevelshouldbebetweentheLOWandFULLmarksontheENGINE STOPPEDsideofdipstick.
c.Observehydraulictankoillevel.OillevelshouldbeabovetheADDCOLDmarkinsightgauge.
PositioningSeat
Inspectconditionofseatbeltandmountinghardware.Replaceany defectivecomponents.
Alwaysweartheseatbeltwhenoperatingthemachine.
Adjusttheseatatbeginningofeachshiftorwhenoperatorschange.
NOTICE
Adjusttheseattoallowfullbrakepedaltravel,withoperator'sback againstseatback.Thiswillpermitapplicationofmaximumforceon thebrakepedal.
VerticalAdjustment-Pulluponhandletoreleaselock.Positionseatasdesired.Releasehandleto engagelock.
Fore-AftAdjustment-Pushleverforwardtoreleaselock.Slideseatforwardorbackwardasdesired. Releaseleverandmoveseattoengagelock.
TiltAdjustment-Pullleverforwardtoreleaselock.Positionseatasdesired.Releaseleverandmove seattoengagelock.
DamperAdjustment-Pushdownorpulluponlevertoadjustamountofdampening,forfirmorsoft ride.Releaselever.
NOTE:Seatarmrestmayberaisedandswungbackifdesired.
Copyright1993-2023CaterpillarInc. AllRightsReserved. PrivateNetworkForSISLicensees.
TueSep510:11:39UTC+05302023
Product:WHEELLOADER
Model:988BWHEELLOADER50W
Configuration:988BWHEELLOADER50W00001-06040(MACHINE)POWEREDBY3408ENGINE
OperationandMaintenanceManual 988BWHEELLOADER(50W1-3776)
MediaNumber-SEBU5402-00PublicationDate-04/06/1976DateUpdated-11/10/2001
Controls
RangeSelector
(F)FORWARDDIRECTION
(N)NEUTRAL
(R)REVERSEDIRECTION
ColumnLockedposition.
Tounlockcolumn,turnkeyclockwise.Removekey.
ColumnRelease
Whileholdingsteeringwheel,pullleverouttoreleasesteeringcolumn,andmovecolumntodesired position.Releaselevertolockcolumninposition.
ParkingBrake
Pulloutonlevertoengageparkingbrake.Pushintoreleaseparkingbrake.
BucketTiltControl
(D)DUMP
(H)HOLD
(T)TILTBACK
BucketLiftControl
(F)FLOAT
(L)LOWER
(H)HOLD
(R)RAISE
VCTC-(VariableCapacityTorqueConverter)
MIN-Minimumtorquetodrivewheels,andmaximumhorsepowertobuckethydraulics.
MAX-Maximumusabletorquetodrivewheels,andlimitedhorsepowertobuckethydraulics.
VCTCOverride
DepressfootcontroltooverridetheVCTCcontrolleversettingandprovidemaximumtorquetodrive wheels.Depressfootcontrolagaintoreturntocontrolleversetting.
NOTE:FullTorqueIndicatorwillcomeONwhentheVCTCfootcontrolisdepressedtoprovide maximumtorquetodrivewheels.
BrakePedals
RIGHT-Depresstoreducemachinegroundspeed.
LEFT-Depresstoreducemachinegroundspeedandtoneutralizethetransmission.
Accelerator
Depresstoincreaseenginespeed.Releasetodecreaseenginespeed.
HornSwitch
Depresstocausehorntosound.
MainDisconnectSwitch
(1)OFF
NOTICE
DonotturnswitchtoOFFwhenengineisrunning.
NOTE:Removecoverplateforaccesstoswitch.TurnswitchtoOFF,aftermachineisparked, wheneverleavingmachineforanextendedperiodoftime,orwhenservicinganypartofelectrical system.
PowerSwitch
OFF-Powertoelectricalsystemisdisconnected.
TESTPANELLIGHTS-Inthispositionallindicatorlights,exceptFullTorqueindicator,should comeONtoindicatetheyarenotburnedout.SeeBeforeStartingtheEngine.
ON-Powerissuppliedtotheelectricalsystem.
NOTE:WiththePowerswitchONandtheEngine-Startswitchnotmoved,thePrestartFluidLevel indicatorsshouldcomeONifitisnecessarytoaddfluidstotheenginecrankcase,hydraulicoiltank orthefueltank.SeeBeforeStartingtheEngine.
Engine-StartSwitch
HEAT-MoveswitchtoHEATtoheattheglowplugstoaidinstarting.
START-MovetoSTARTtoengagestarter-motor.
NOTE:GlowplugswillalsobeheatedinSTARTposition.
Engine-StopSwitch
Depressandholdinonbuttonuntilenginestops.
WindshieldWiper-WasherSwitch
RotateswitchclockwisetoturnwiperON.Pushinonswitchtoactivatewasher.
Tail-PanelLightSwitch
(1)ON
(2)OFF
HeadlightSwitch
(1)ON
(2)OFF
FloodlightSwitch
(1)ON (2)OFF
AuxiliaryFloodlightSwitch
(1)ON (2)OFF
FanSpeedControl
Clockwise-HeaterFanSpeed.
(O)OFF,(L)LOW
(M)MEDIUM,(H)HIGH
Counterclockwise-AirConditionerFanSpeed.
(L)LOW,(M)MEDIUM,(H)HIGH
HeaterTemperatureControl
(O)OFF,(W)WARM
AdjustswitchbetweenOFFandWARMtocontrolamountofheat.
AirConditionerControl
(O)OFF,(C)COOL
AdjustswitchbetweenOFFandCOOLtocontrolamountofcooling.
FloorHeater
(1)OFF
(2)ON
AdjustswitchbetweenOFFandONtocontrolamountofheat.
DomeLightSwitch
(1)OFF (2)ON
Copyright1993-2023CaterpillarInc. AllRightsReserved. PrivateNetworkForSISLicensees.
TueSep510:10:17UTC+05302023
Product:WHEELLOADER
Model:988BWHEELLOADER50W
Configuration:988BWHEELLOADER50W00001-06040(MACHINE)POWEREDBY3408ENGINE
OperationandMaintenanceManual 988BWHEELLOADER(50W1-3776)
MediaNumber-SEBU5402-00PublicationDate-04/06/1976DateUpdated-11/10/2001
Foreword
Thisguideisareferenceforthenewoperatorandarefresherfortheexperiencedone.Read-studyandkeepithandy.
Illustrationsguidetheoperatorthroughthecorrectproceduresofchecking,starting,operatingand stoppingthevehicleandattachments.
Operatingtechniquesoutlinedintheguidearebasic.Skillandtechniquesdevelopastheoperator gainsknowledgeofthevehicleanditscapabilities.
Yoursafetyandthesafetyofothersdependsuponcareandjudgmentintheoperationofthisvehicle. Acarefuloperatorisgoodinsuranceagainstanaccident.
Mostaccidents,nomatterwheretheyoccur,arecausedbysomeone'sfailuretoobserveandfollow simpleandfundamentalrulesorprecautions.Forthisreasonmostaccidentscanbeavoidedby recognizinghazardsandtakingstepstoavoidthembeforeanaccidentoccurs.
Regardlessofthecareusedinthedesignandconstructionsofanytypeofequipment,thereare conditionsthatcannotbecompletelysafeguardedagainstwithoutinterferingwithreasonable accessibilityandefficientoperation.
Somephotographsinthispublicationmayshowdetailsorattachmentsthatmaybedifferentfrom yourunit.Also,theROPS,forsomephotographsmayhavebeenremovedforillustrativepurposes.
Continuingimprovementandadvancementofproductdesignmaycausechangestoyourmachine whichmaynotbeincludedinthispublication.Eachpublicationisreviewedandrevised,asrequired, toupdateandincludethesechangesinlatereditions.
WhenaquestionarisesregardingyourCaterpillarproduct,orthispublication,pleaseconsultyour Caterpillardealerforthelatestavailableinformation.
RefertotheLUBRICATIONANDMAINTENANCEGUIDEorconsultyourCaterpillardealerfor lubricationandmaintenanceproceduresforthismachine.
TueSep510:06:43UTC+05302023
This is the sample of the manual Click on the download link for complete Manual