ShopManual
WHEELLOADER
•Thisshopmanualmaycontainattachmentsandoptionalequipmentthatarenotavailableinyourarea. PleaseconsultyourlocalKOMATSUdistributorforthoseitemsyoumayrequire.
•Materialsandspecificationsaresubjecttochangewithoutnotice.
•TheWheelLoaderWA80M-8E0isequippedwiththeengineS4D98E-6VHA.
•FordetailsofthisengineseeEngineManual:WA100M-8inattachment.
PRECAUTIONSTOPREVENTFIRE............................................................0-21
ACTIONSIFFIREOCCURS...................................................................0-23
PRECAUTIONSFORDISPOSINGOFWASTEMATERIALS.........................................0-24
ACTIONSTAKENTOMEETEXHAUSTGASREGULATIONS........................................0-25
PRECAUTIONSFORHANDLINGHYDRAULICEQUIPMENT.........................................0-26
PRECAUTIONSFORDISCONNECTIONANDCONNECTIONOFPIPINGS.............................0-29 PRECAUTIONSFORREMOVALANDDISASSEMBLINGWORK..............................0-29 INTRODUCTIONOFPARTSFORTHEDISASSEMBLYOFTHEFACESEALTYPEHOSESANDTUBES.0-31 INTRODUCTIONOFPARTSFORTHEDISCONNECTIONOFTHETAPERSEALTYPEHOSESANDTUBES0-31 INTRODUCTIONOFPARTSFORTHEDISCONNECTIONOFTHESPLITFLANGETYPEHOSESANDTUBES.0-32 INTRODUCTIONOFPARTSFORTHEREMOVALOFO-RINGBOSSTYPEJOINT...............0-33 INTRODUCTIONOFPARTSFORTHEREMOVALOFTAPERPIPETHREADTYPEJOINT........0-34
PRECAUTIONSFORINSTALLATIONANDASSEMBLINGWORK.............................0-35
PRECAUTIONSATTHETIMEOFCOMPLETIONOFWORK.................................0-37
PRECAUTIONSFORHANDLINGELECTRICALEQUIPMENT........................................0-40 HANDLINGWIRINGHARNESSESANDCONNECTORS....................................0-40 MAINCAUSESOFFAILUREINWIRINGHARNESS........................................0-40
PRECAUTIONSFORHANDLINGFUELSYSTEMEQUIPMENT...............................0-43 PRECAUTIONSFORHANDLINGINTAKESYSTEMEQUIPMENT.............................0-44
PRACTICALUSEOFKOMTRAX.......................................................0-45
PRECAUTIONSFORDISCONNECTIONANDCONNECTIONOFCONNECTORS................0-47 PRECAUTIONSFORTROUBLESHOOTINGELECTRICALCIRCUITS..........................0-51
METHODFORDISCONNECTINGANDCONNECTINGDEUTSCHCONNECTOR................0-52
METHODFORDISCONNECTINGANDCONNECTINGSLIDELOCKTYPECONNECTOR.........0-53
METHODFORDISCONNECTINGANDCONNECTINGCONNECTORWITHLOCKTOPULL.......0-55 METHODFORDISCONNECTINGANDCONNECTINGCONNECTORWITHLOCKTOPUSH......0-56 METHODFORDISCONNECTINGANDCONNECTINGCONNECTORWITHHOUSINGTOROTATE.0-58
HOWTOREADELECTRICALWIRECODE......................................................0-60
TYPE,SYMBOL,ANDMATERIAL.......................................................0-60
COLORCODESTABLE...............................................................0-61
EXPLANATIONOFTERMSFORMAINTENANCESTANDARD.......................................0-62
STANDARDDIMENSIONANDTOLERANCE..............................................0-62
STANDARDCLEARANCEANDSTANDARDVALUE........................................0-63
STANDARDINTERFERENCE..........................................................0-63
REPAIRLIMITANDALLOWABLEVALUEORALLOWABLEDIMENSION.......................0-63
ALLOWABLECLEARANCE............................................................0-64
ALLOWABLEINTERFERENCE.........................................................0-64
STANDARDTIGHTENINGTORQUETABLE......................................................0-65
CONVERSIONTABLE.......................................................................0-73
•Thislistofabbreviationsincludestheabbreviationsusedin thetextoftheshopmanualforparts,components,andfunctionswhosemeaningisnotimmediatelyclear.Thespelling isgiveninfullwithanoutlineofthemeaning.
•Abbreviationsthatareusedingeneralsocietymaynotbe included.
•Specialabbreviationswhichappearinfrequentlyarenotedin thetext.
•Thislistofabbreviationsconsistsoftwoparts.Thefirstpart isalistoftheabbreviationsusedinthetextofthemanual, andthesecondpartisalistoftheabbreviationsusedinthe circuitdiagrams.
Abbrevia-tionActualwordspelledout
ABSAntilockBrakeSystem
Purposeofuse(majorapplicablemachine(*1),orcomponent/system)
Travelandbrake (HD,HM)
AISSAutomaticIdlingSetting System Engine
AJSSAdvancedJoystick SteeringSystem Steering (WA)
ARACAutomaticRetarder AcceleratorControl
ARSCAutomaticRetarder SpeedControl
ASRAutomaticSpinRegulator
Travelandbrake (HD,HM)
Travelandbrake (HD,HM)
Travelandbrake (HD,HM)
ATTAttachmentWorkequipment
BCVBrakecoolingoilcontrol valve
BRAKE (HD)
CANControllerAreaNetworkCommunicationandelectroniccontrol
CDRCrankcaseDepression Regulator Engine
CLSSClosed-centerLoadSensingSystemHydraulicsystem
Explanation
Thisisafunctionthatreleasesthebrakewhenthe tiresskid(tiresarenotrotated).Thisfunctionapplies thebrakeagainwhenthetiresrotate.
Thisisafunctionthatautomaticallysetstheidle speed.
Thisisafunctionthatperformsthesteeringoperationswithaleverinsteadofusingasteeringwheel. Thisfunctionperformsgearshiftingandchanging forwardandreversedirection.
Thisisafunctionthatautomaticallyoperatesthe retarderwithaconstantbrakingforcewhenletting gooftheacceleratorpedalonthedownhill.
Thisisafunctionthatautomaticallyoperatesthe retardertoensurethatthemachinespeeddoesnot accelerateabovethespeedsetbytheopera-tor whenlettinggooftheacceleratorpedalon thedownhill.
Thisisafunctionthatdrivesbothwheelsautomaticallyusingtheoptimumbrakingforcewhenthetire ononesidespinsonthesoftgroundsur-faces.
Afunctionorcomponentthatcanbeaddedtothe standardspecification.
Thisisavalvethatbypassesapartofthebrake coolingoiltoreducetheloadappliedtothehydraulic pumpwhentheretarderisnotbeingused.
Thisisoneofcommunicationstandardsthatare usedinthenetworkonthemachine.
ThisisaregulatorvalvethatisinstalledtoCCVventilator.ItiswrittenasCDRvalveandisnotused independently.
Thisisasystemthatcanactuatemultipleactuators simultaneouslyregardlessoftheload(providesbettercombinedoperationthanOLSS).
Abbreviation
Actualwordspelledout
Purposeofuse(major applicablemachine(*1), orcomponent/system)
CommonRailInjectionEngine
CRI
ECM
ElectronicControl Module
ECMVElectronicControl ModulationValve
ECSSElectronicallyControlled
ECU
Electroniccontrolsystem
Transmission (D,HD,WA,etc)
Travel (WA)
ElectronicControlUnitElectroniccontrolsystem
Explanation
Thisisafunctionthatmaintainsoptimumfuel injectionamountandfuelinjectiontiming.This isperformedtheenginecontrollerwhichelectronicallycontrolssupplypump,commonrail, andinjector.
Thisisanelectroniccontroldevicethatsend thecommandtoactuatorsusingthesignals fromthesensorsonthemachinesothatthe optimumactuationisperformed.(Sameas
Thisisaproportionalelectromagneticvalve thatdecreasesthetransmissionshockbygraduallyincreasingoilpressureforengaging
Thisisadevicethatensuressmoothhighspeedtravelbyabsorbingvibrationofmachine duringtravelwithhydraulicspringeffectof
Thisisanelectroniccontroldevicethatsend thecommandtoactuatorsusingthesignals fromthesensorsonthemachinesothatthe optimumactuationisperformed.(Sameas
EGR
ExhaustGasRecirculation Engine
EMMS EquipmentManagementMonitoringSystem
EPCElectromagneticProportionalControl
FOPS
F-N-R
FallingObjectProtectiveStructure
Machinemonitor
Hydraulicsystem
Cabandcanopy
Thisisafunctionthatrecirculatesapartof exhaustgastocombustionchamber,sothatit reducescombustiontemperature,andreduces emissionofNOx.
Thisisafunctionwithwhichoperatorcan checkinformationfromeachsensoronthe machine(filter,oilreplacementinterval,malfunctionsonmachine,failurecode,andfailure
ElectromagneticproportionalcontrolThisisa mechanismwithwhichactuatorsoperatein proportiontothecurrent.
Thisstructureprotectstheoperator'sheadfrom fallingobjects.(Fallingobjectprotectivestructure)
ThisperformanceisstandardizedasISO3449.
Forward-Neutral-ReverseOperationForward-Neutral-Reverse
GPS GlobalPositioningSystem
Communication (KOMTRAX,KOMTRAX
GNSS GlobalNavigationSatelliteSystem
HSS
HydrostaticSteering System
HSTHydroStaticTransmission
Communication (KOMTRAX,KOMTRAX
Steering (DSeries)
Transmission (D,WA)
Thissystemusessatellitestodeterminethe cur-rentlocationontheearth.
Thisisageneraltermforsystemusessatellites suchasGPS,GALILEO,etc.
Thisisafunctionthatenablesthemachineto turnwithoutsteeringclutchbycontrollingadifferenceintravelspeedofrightandlefttracks withacombinationofhydraulicmotorand
Hydraulictransmissionsystemthatusesa combinationofhydraulicpumpandhydraulic motorwithoutusinggearsforsteplessgear
Abbreviation
Actualwordspelledout
Purposeofuse(major applicablemachine(*1), orcomponent/system)
ICTInformationandCommunicationTechnology Communicationandelectroniccontrol
IMAInletMeteringActuatorEngine
IMUInertialMeasurement Unit Engine
IMVInletMeteringValveEngine
CCVClosedCrankcase Ventilation Engine
KCSFKomatsuCatalyzedEngine
DOCKomatsuDieselOxidationCatalyst Engine
Explanation
Ageneraltermfortheengineeringandits sociallyappliedtechnologyofinformationprocessingandcommunication.
Thisisavalvethatadjuststhefuelintake amountatthepumpinletinordertocontrolthe supplypumpfueldischargedvolume.(Same
Thisisadevicetodetecttheangle(orangular velocity)andaccelerationofthe3axesthat controlmotions.
Thisisavalvethatadjuststhefuelintake amountatthepumpinletinordertocontrolthe supplypumpcombustiondischargedvolume. (SameasIMA)
Thisisamechanismthatburnstheblowbygas againbyseparatingoilfromblowbygasandreturningittotheintakeside.Itprimarilyconsists offilters.
Thisisafilterthatcapturessootinexhaust gas.
Thisisacatalystthatisusedforpurifyingexhaust gas. ItisbuiltintoDPForassembledwiththemuffler.
DPFKomatsuDieselParticulateFilter Engine Thisisacomponentthatisusedtopurifythe exhaustgas.DOC(catalyst)andKCSF(filterto capturesoot)arebuilt-init. Itisinstalledinsteadoftheconventionalmuffler.
KTCS KomatsuTractionControlSystem Travelandbrake (HM)
LCDLiquidCrystalDisplayMachinemonitor
Thisisafunctionthatperformsbrakingwiththe optimumforceandrecoversthedrivingforceof thewheelsbyactuatingtheinter-axledifferentiallockwhenthewheelsrunsidlewhilethe machinetravelsonthesoftground.
Thisisanimagedisplayequipmentsuchasa monitorinwhichtheliquidcrystalelementsare assembled.
LEDLightEmittingDiodeElectronicpartsThisisasemiconductorelementthatemitslight whenthevoltageisappliedinforwarddirection.
LINLocalInterconnectNetwork
Communicationandelectroniccontrol
LSLoadSensingHydraulicsystem
LVDSLowVoltageDifferential
Communicationandelectroniccontrol
MAFMassAirFlowEngine
Thisisoneofcommunicationstandardsthat areusedinthenetworkonthemachine.
Thisisafunctionthatdetectsdifferentialpressureofpump,andcontrolsdischargedvolume correspondingtoload.
Thisisoneofcommunicationstandardsthat areusedinthenetworkonthemachine.
Thisindicatesengineintakeairflow.Thisisnot usedindependentlybutisusedascombined withsensor.Massairflowsensorcanbecalled asMAFsensor.
Abbreviation
Actualwordspelledout
Purposeofuse(major applicablemachine(*1), orcomponent/system)
MMSMultimediaMessaging Service Communication
NCNormallyClosedElectricalsystem,hydraulicsystem
NONormallyOpenElectricalsystem,hydraulicsystem
OLSSOpen-centerLoad SensingSystem
PCPressureCompensation
PCCS Palmcommandcontrolsystem
Hydraulicsystem
Explanation
Thisisaservicethatallowstransmissionand receptionofshortmessagesconsistingofcharactersorvoiceorimagesbetweencellphones.
Thisisacharacteristicofelectricalorhydraulic circuits.Circuitisnormallyclosedifitisnot actuated,anditopenswhenitisactuated.
Thisisacharacteristicofelectricalorhydraulic circuits.Circuitisnormallyopenifitisnotactuated,anditcloseswhenitisactuated.
Thisisahydraulicsystemthatcanoperate multipleactuatorsatthesametimeregardless oftheload.
HydraulicsystemThisisafunctionthatcorrectstheoilpressure.
Steering (DSeries)
PCVPre-strokeControl Valve Engine
PPC
ProportionalPressure ControlHydraulicsystem
Thisisafunctionthatelectricallycontrolsthe engineandtransmissioninanoptimalwaywith thecontrollerinstantlyanalyzingdatafrom levers,pedals,anddials.
Thisisavalvethatadjuststhefuelintake amountatthepumpinletinordertocontrolfuel dis-chargedvolumeofsupplypump.
Thisisasystemthatoperatesactuatorsinproportiontotheoilpressure.
PPM PistonPumpand Motor Hydraulicsystem (D,PC,etc)Pistontypehydraulicpumpandmotor.
PTOPowerTakeOffPowertrainsystemPowertake-offmechanism
PTPPowerTiltandpower Pitchdozer
ROPS
Workequipment (DSeries)
Roll-OverProtective Structure Cabandcanopy
SCR
SI
SelectiveCatalytic Reduction UreaSCRsystem
Thisisafunctionthatperformshydrauliccontrolofthetiltandpitchofthedozerbladeofthe bull-dozer.
ROPSisaprotectivestructurethatintendedto protecttheoperatorwearingseatbeltfromsufferinginjurywhichmaybecausedifthecabis crushedwhenthemachinerollsover.(Rolloverprotectivestructure)
ThisperformanceisstandardizedasISO3471 orISO12117-2.
Thisisanexhaustgaspurifierusingureawater thatconvertsnitrogenoxides(NOx)intoharmlessnitrogenandwaterbyoxidation-reduction re-action.Itmayalsobementionedasexhaust gaspurificationcatalystorpartofthenameof relateddevices.
LeSystemeInternationald'Unites(Internationalunitsystem) Unit
Abbreviationfor"InternationalSystemofUnits" Itistheuniversalunitsystemand"asingleunit forasinglequantity"isthebasicprinciple applied. SOLSolenoidElectricalsystem
Thisisanactuatorthatconsistsofasolenoid andanironcorethatisoperatedbythemagneticforcewhenthesolenoidisenergized.
Abbrevia-tionActualwordspelledout
Purposeofuse(major applicablemachine(*1), orcomponent/system)
TOPSTip-OverProtectiveStructureCabandcanopy
Explanation
Thisisaprotectivestructurethatintendedto protecttheoperatorwearingseatbeltfromsufferinginjurywhichmaybecausedifthecabis crushedwhenthemachinetipsover.(Roll-over protectivestructureofhydraulicexcavator) ThisperformanceisstandardizedasISO 12117.
TWV2-WayValveHydraulicsystemThisisasolenoidvalvethatswitchesover directionofflow.
VGTVariableGeometryTurbocharger EngineThisisaturbochargeronwhichthecross-sectionareaoftheexhaustpassageisvariable.
VHPCVariableHorsePower ControlEnginecontrol
*1:Codeforapplicablemachinemodel
D:Bulldozer
HD:Dumptruck
HM:Articulatedumptruck
PC:Hydraulicexcavator
WA:Wheelloader
Thisisafunctionthatfinelycontrolsthemaximumoutputofthemachinesothathighwork efficiencyandlowfuelconsumptionrateare bothachieved.
AbbreviationActualwordspelledout
A/CAirConditioner
A/DAnalogue-to-Digital
A/MAirMixDamper
ACCAccessory
ADDAdditional
AUXAuxiliary
BRBatteryRelay
CWClockwise
CCWCounterClockwise
ECUElectronicControlUnit
ECMElectronicControlModule
ENGEngine
EXGNDExternalGround
F.G.FrameGround
GNDGround
IMAInletMeteringActuator
NCNoConnection
S/T
STRGSteering
SIGSignal
SOLSolenoid
STDStandard
OPT
OPOption
PRESSPressure
SPECSpecification
SWSwitch
TEMPTemperature
T/CTorqueConverter
T/MTransmission
•Someoftheattachmentsandoptionsdescribedinthisshop manualmaynotbeavailableinsomeareas.Iftheyarerequired,consultyourKomatsudistributor.
•Thematerialsandspecificationsaresubjecttochangewithoutnotice.
•ShopManualsareavailablefor"machinepart"and"engine part".Fortheengineunit,seetheshopmanualforthemachinewhichhasthesameenginemodel.
•Actualmachinemaydifferfromtheimageswhicharecontainedinthismanual.Atypicalmodelisshownintheillustrationsofthisshopmanual.
Thisshopmanualcontainstechnicalinformationnecessaryto performservicesinworkshops.Itisdividedintothefollowing chaptersfortheeaseofuse.
Thissectiondescribestheindex,foreword,safety,andbasicinformation.
Thissectiondescribesthestructureandoperationofeachcomponentwithrespecttoeachsystem."STRUCTUREANDFUNCTION"ishelpfulinnotonlyunderstandingthestructureofeach componentbutperformingtroubleshooting.
Thissectiondescribesthestandardvaluesfornewmachineand failurecriteriafortestingandadjusting,andtroubleshooting.Use thestandardvaluestabletocheckthestandardvaluesfortestingandadjusting,andjudgetroublesintroubleshooting.
Thissectiondescribesthemeasuringtoolsandmeasuring methodsfortestingandadjustingaswellastheadjustingmethodofeachpart.ThestandardvaluesandrepairlimitforTESTINGANDADJUSTINGaredescribedin"STANDARDVALUE TABLE".
Thissectiondescribestroubleshootingoffailurepartandits remedymethodontheoccurrenceofthefailure.Descriptionsof troubleshootingaresortedbyfailuremode.
Thissectiondescribesthespecialtools,workprocedures,and safetyprecautionsnecessaryforremoval,installation,disassembly,andassemblyofthecomponentsandparts.Inaddition, tighteningtorques,quantity,andweightofthecoatingmaterials, lubricants,andcoolantnecessarytotheseworksareshown.
Thissectiondescribesthemaintenancestandardvalueofeach component.Themaintenancestandardshowsthecriteriaand remediesfordisassemblyandassembly.
Thissectiondescribesthestructureandfunction,testingand adjusting,andtroubleshootingforalloftheothercomponentsor equipmentwhichcannotbeseparatelyclassifiedintheappendix.
Thissectiondescribeshydrauliccircuitdiagramsandelectrical circuitdiagrams.
Importantsafetyandqualityportionsaremarkedwiththefollowingsymbolssothatshopmanualisusedeffectively.
DangerThissignalindicatesanextremelyhazardoussituationwhichwillresultin deathorseriousinjuryifitisnotavoided.
WarningThissignalindicatesapotentiallyhazardoussituationwhichwillresultin deathorseriousinjuryifitisnotavoided.
CautionThissignalindicatesapotentiallyhazardoussituationwhichwillresultin injuryorpropertydamagearoundthemachineifitisnotavoided.
Weight
SafetyThissymbolindicatestheworkswhichrequirespecialcautionforthe machinesafetywhenassembling. 4 3 2 5 6 ,
Tightening torque
Thissignalindicatestheweightofpartsandcomponents,anditemswhich requiresgreatattentiontoaselectionofwiresandworkingposturefor slingingwork.
Thissignalindicatesthetighteningtorqueforportionswhichrequiresspecialcareinassemblingwork.
CoatThissignalindicatesaplacetobecoatedwithadhesive,grease,etc.in assemblingwork.
OilandcoolantThissignalindicatesaplacetosupplyoil,coolant,etc.andthequantity
DrainingThissignalindicatesaplacetodrainoil,coolant,etc.andthequantity.
Signalwordfornoticeandremarkdescribesthefollowing.
SymbolItemRemark
NOTICENoticeIftheprecautionofthissignalwordisnotobserved,themachinedamageorshorteningofservicelifemayoccur.
REMARKRemarkThissignalwordcontainsusefulinformationtoknow.
InternationalSystemofUnits(SI)isusedinthismanual.Forreference,unitsthathavebeenusedinthepastaregivenin{}.
•Appropriateservicingandrepairareextremelyimportantto ensuresafeoperationofthemachine.Theshopmanuals describetheeffectiveandsafeservicingandrepairmethods recommendedbyKomatsu.Someoftheservicingandrepairmethodsrequiretheuseofspecialtoolsdesignedby Komatsuforspecialpurposes.
•Thesymbolmarkisindicatedforsuchmattersthatrequirespecialprecautions.Theworkindicatedwiththiswarningmarkshouldbeperformedaccordingtothe instructionswithspecialattention.Shouldahazardoussituationoccurorbeanticipatedduringsuchwork,besureto keepsafefirstandtakeeverynecessarymeasure.
•Wellorganizedworkplace
•Correctworkclothes
•Observanceofworkstandard
•Enforcementofhandsignals
•Prohibitionagainstunlicensedpersonsoperatingandhandlingthemachine
•Safetycheckbeforestartingwork
•Wearofdustglasses(forcleaningorgrindingwork)
•Wearofweldinggogglesandprotectors(forweldingwork)
•Beingingoodphysicalcondition,andgoodpreparation
•Alwaysbealertandcareful.
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•Readandunderstandthemeaningofallthesafetylabels stucktothemachinebeforeperforminganygreasingorrepairs.Forthelocationsofthesafetylabelsanddetailedexplanationofprecautions,seeOperationandMaintenance Manual.
•Toolsandremovedpartsintheworkshopshouldbewellorganized.Alwayskeepthetoolsandpartsintheircorrect places.Alwayskeeptheworkareacleanandmakesure thatthereisnodust,dirt,oil,orwateronthefloor.Smoke onlyinthedesignatedareas.Neversmokewhileworking.
•Keepalltoolsingoodcondition,learnthecorrectwaytouse them,andusetheproperones.Checkthetools,machine, forklifttruck,servicecar,etc.thoroughlybeforestartingthe work.
•Alwayswearsafetyshoesandhelmetwhenperformingany operation.Donotwearlooseclothes,orclotheswithbuttons missing.
•Alwaysweartheprotectiveeyeglasseswhenhittingparts withahammer.
•Alwaysweartheprotectiveeyeglasseswhengrindingparts withagrinder,etc.
•Whenperforminganyoperationwithmultipleworkers,alwaysagreeontheoperatingprocedurebeforestarting.Be clearinverbalcommunicationandobservehandsignals. Hang"UNDERREPAIR"warningtagintheoperator'scompartmentBeforestartingwork.
•Workandoperationwhichrequirelicenseorqualification shouldbeperformedbyqualifiedworkers.
•Weldingrepairsshouldbeperformedbytrainedandexperiencedwelders.Whenperformingweldingwork,always wearweldinggloves,apron,weldinggoggles,capandother clothessuitedforweldingwork.
•Warmupbeforestartingtheworkwithexercisewhichincreasesalertnessandtherangeofmotioninordertopreventinjury.
•Avoidprolongedworkandtakearestattimestokeepupa goodcondition.Takearestatdesignatedsafearea.
•Placethemachineonafirmandlevelgroundandapplythe parkingbrakeandchockthewheelsortrackstopreventthe machinefrommovingbeforeaddingoilormakinganyrepairs.
•Lowertheworkequipment(blade,ripper,bucket,etc.)tothe groundbeforestartingwork.Ifthisisnotpossible,insertthe lockpinoruseblockstopreventtheworkequipmentfrom falling.Inaddition,besuretolockallthecontrolleversand hang"UNDERREPAIR"warningtagonthem.
•Whenperformingthedisassemblingorassemblingwork, supportthemachinesecurelywithblocks,jacks,orstands beforestartingthework.
•Removeallmudandoilfromthestepsorotherplacesforgoingupanddownonthemachine.Alwaysusethehandrails, laddersorstepswhenforgoingupanddownonthemachine. Neverjumponoroffthemachine.Whenthescaffoldisnot provided,usestepsorstepladdertosecureyourfooting.Do notusehandrails,ladders,orstepsiftheyaredamagedor deformed.Repairitorreplaceitimmediately.
•Forthemachinewiththebatterydisconnectswitch,checkbeforestartingtheworkthatthesystemoperatinglampisnotlit. Then,turnthebatterydisconnectswitchtoOFF()position
RemovethekeyafteritisturnedtoOFF()positionifthebatterydisconnectswitchisaswitchkeytype.Forthemachine withoutthebatterydisconnectswitch,turnthestartingswitch toOFFposition,waitfortwominutesormorebeforestarting thework.Disconnectthebatterycablebystartingfromthe negative(-)terminalfirst.
•Forthemachinewiththequickreleasebatteryterminal(-), checkbeforestartingtheworkthatthesystemoperatinglamp isnotlit.Then,disconnectthequickreleasebatteryterminal (-).
Forthemachinewithoutthesystemoperatinglamp,turnthe startingswitchtoOFFposition,waitfortwominutesormore beforestartingthework.Disconnectthequickreleasebattery terminal(-).
•Releasetheremainingpressurefromthecircuitbeforestartingtheworkofdisconnectingandremovingofoil,fuel,water, orairfromthecircuit.Whenremovingthecapofoilfilter, drainplug,oroilpressureplug,itshouldbedoneslowlyotherwisetheoilspills.