SERVICE MANUAL WX148 Wheeled Excavator 1/1 Part number 47500167 English January 2013 Copyright © 2013 CNH Europe Holding S.A. All Rights Reserved.
SERVICEMANUAL WX148 47500167A31/01/2013
Contents INTRODUCTION Engine.......................................................................................10 [10.202]Aircleanersandlines..............................................................10.2 [10.254]Intakeandexhaustmanifoldsandmuffler.........................................10.5 [21.105]Powershifttransmissionlubricationsystem........................................21.1 [21.155]Powershifttransmissioninternalcomponents......................................21.4 Four-WheelDrive(4WD)system..................................................23 [23.314]Driveshaft..........................................................................23.1 Frontaxlesystem.......................................................................25 [25.122]Axlesuspensioncontrol............................................................25.4 Rearaxlesystem........................................................................27 Brakesandcontrols....................................................................33 47500167A31/01/2013
[35.000]Hydraulicsystems..................................................................35.1 [35.102]Pumpcontrolvalves................................................................35.2 [35.300]Reservoir,cooler,andfilters........................................................35.4 [35.304]Combinationpumpunits...........................................................35.5 [35.353]Hydraulictravelsystem............................................................35.7 [35.354]Hydrauliccentraljoint..............................................................35.8 [35.360]Hammerandrotatingbuckethydraulicsystem..................................35.11 [35.703]Stabilizerhydraulicsystem.......................................................35.12 [35.737]Dipperhydraulicsystem..........................................................35.15
[39.129]Stabilizers..........................................................................39.2
Hydraulicsystems.......................................................................35
Framesandballasting.................................................................39
[41.200]Hydrauliccontrolcomponents......................................................41.3 Wheels......................................................................................44 47500167A31/01/2013
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Cabclimatecontrol.....................................................................50 Electricalsystems.......................................................................55 [55.000]Electricalsystem...................................................................55.1 [55.010]Fuelinjectionsystem...............................................................55.2 [55.015]Enginecontrolsystem..............................................................55.5 [55.036]Hydraulicsystemcontrol...........................................................55.8 [55.110]Electricalrotaryjoint..............................................................55.11 [55.302]Battery............................................................................55.12 [55.512]Cabcontrols......................................................................55.15 [55.514]Cablighting......................................................................55.16 [55.640]Electronicmodules...............................................................55.19 Booms,dippers,andbuckets.......................................................84 Dozerbladeandarm...................................................................86 [86.110]Dozerblade........................................................................86.1 47500167A31/01/2013
[90.150]Cab.................................................................................90.3 47500167A31/01/2013
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INTRODUCTION
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INTRODUCTION
Contents
Safetyrules.....................................................................................3 NotetotheOwner..............................................................................4 Personalsafety.................................................................................6 Productoverview.............................................................................15 Basicinstructions.............................................................................19 47500167A31/01/2013 2
Safetyrules
lowadvisedprecautionstoavoidpotentialhazardsandto
Inthismanualyouwillfindthefollowingindications:
NOTICE: Withspecificwarningsaboutpotentialdangers fortheoperator’sorotherpersonsintegritydirectlyorin-
ATTENTION:
Thissymbolwarnsaboutthepossibilityof potentialdamagestothemachinethatcaninvolvethe operator’ssafety.
Thenoncompliancewiththewarningprecededbythe cancauseseriousaccidentsorthedeathofthepersons
meaningsformachineprotection:
NOTE: Itemphasizesandunderlinestotheoperatorthe
ATTENTION:
Itwarnstheoperatorofapossiblehazardof machinedamageincasehedoesnotfollowadetermined
Yoursafetyandthatofpeoplearoundyoudependson TULI12WEX2001AA 1
INTRODUCTION
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INTRODUCTION NotetotheOwner Theyessentiallyconsistinawheeledundercarriageon trolleversandpedals),thehydraulicpumpsrotatedbythe enginesuckoilfromthetankandconveyittothecontrol SMIL12WEX0181AA 1 Acoolingsystemkeepsthehydraulicfluidatanormal SMIL12WEX0182AA 2 Designateduse strictlyfollowingtheoperatinginstructions.Anyfunctionaldisorders,especiallythoseaffectingthesafetyofthemagroundlevelling(withbladewheninstalled)anduseofhydraulichammertobreakconcreteorothersolidmaterial. Notice Adifferentuseoftheexcavatororofitsworkingequipment: • • Asaworkingplatform. • • Forpullingslungloads. • Isconsideredcontrarytothedesignateduse. Improperusemaycauseinjuryorlife-threateningrisksfortheoperatorandforotherpersons. NOTICE: 47500167A31/01/2013 4
NOTICE: Itisabsolutelyforbiddentotamperand/orchangethesettingofanyofthehydraulicsystemvalvestoavoid
INTRODUCTION
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Personalsafety
Askyouremployeraboutthesafetyinstructionsinforce
Nevercarryoutanyoperationonthemachinewhenthe
Servicestairsandplatformsusedinaworkshoporinthe
INTRODUCTION
structedstaff;specificprecautionshavetobetakenwhen grinding,weldingorwhenusingmalletsorheavyhammers. Notauthorizedpersonsarenotallowedtorepairorcarry outmaintenanceonthismachine.Donotcarryoutany
machinemaintenanceunlessheisaqualifiedoperator fromanyotherpositionthantheoperator’sseat. TULI12WEX2004AA 1
Stoptheengineandensurethatallpressureisrelieved fromhydrauliccircuitsbeforeremovingcaps,covers, Allrepairandmaintenanceoperationsshouldbecarried
fieldshouldbebuiltincompliancewiththesafetyrulesin safetyofthemachine,shouldthereforeberectifiedimmediately. DANGER Unexpectedmovement! Makesureparkingbrakeisapplied.Secure machinewithwheelchocks. Failuretocomplywillresultindeathorserious injury. D0013A TULI12WEX2005AA 2 Beforeperforminganyworkonthemachine,attacha theleft-handcontrollever,safetyleverorcabdoor. TULI12WEX2006AA 3 47500167A31/01/2013 6
INTRODUCTION Emergency Bepreparedforemergencies.Alwayskeepatdisposalon surethatthefireextinguisherisservicedinaccordance withthemanufacturer’sinstructions. SMIL12WEX0174AA 4 Equipment ateforthejob: • Safetyhelmet • Safetyshoes • Heavygloves • Reflectiveclothing • Wetweatherclothing Ifenvironmentconditionrequireitfollowingpersonal safetyequipmentshouldbeathand: • Respirators(ordustproofmasks) • Earplugsoracousticearsprotections • Goggleswithlateralshieldormasksforeyesprotection jacketsorshirtswithopenzipswhichcouldgetcaughtinto TULI12WEX2008AA 5 Engine-Radiator terials. thisincreasesfirehazardincaseoffuelspillage. NeverattempttocheckoradjustthebeltswhentheenTULI12WEX2009AA 6 47500167A31/01/2013 7
INTRODUCTION Payattentiontorotarypiecesanddonotallowtoanyone thetransmissionbelt,thiscancauseamputations,violent tearsandgenerateconditionofseriousdanger;forthis reasonavoidtouchingortocomeclosetoallrotaryor Aviolentjetofthecoolantfromtheradiatorcancause Ifyouaretocheckthecoolantlevel,youhavetoshut-off theenginepreviouslyandtoletcooldowntheradiatorand TULI12WEX2010AA 7 TULI12WEX2011AA 8 Hydraulicsystems Splashesoffluidsunderpressurecanpenetratetheskin Relievetheresidualpressurebymovingthehydraulic Protectyourhandsandbodyfrompossiblesplashesof TULI12WEX2012AA 9 47500167A31/01/2013 8
INTRODUCTION ofinjuryimmediately. Anyfluidpenetratingtheskinmustberemovedwithinfew hourstoavoidseriousinfections. Flammablesplashesmayoriginatebecauseoftheheat nearpipeswithfluidsunderpressure,withtheresultof torchesnearpipescontainingfluidsorotherflammable Pipesunderpressurecanaccidentallybepiercedwhen theheatexpandsbeyondtheareaimmediatelyheated. Arrangeforfireresistanttemporaryshieldstoprotect hosesorothercomponentsduringwelding. upbindingagentanddisposeofitseparatelyfromother hydraulichosesimmediatelyondetectinganydamageor TULI12WEX2013AA 47500167A31/01/2013 9
Hosesandtubes
Alwaysreplacehosesandtubesiftheconeendorthe
movementfromtheoriginalpositionhavefailedandwill
INTRODUCTION
foretighteningtheconnections.Clampsshouldbetightenedsufficientlytoholdthehosewithoutcrushingandto Afterhosereplacementtoamovingcomponent,check thatthehosedoesnotfoulbymovingthecomponent
tanthosefailure. Ballooningofthehoseindicatesaninternalleakagedueto structuralfailure.Thisconditionrapidlydeterioratesand sufferinternalstructuraldamagewhichcanresultinoil restriction,areductioninthespeedofoperationandultimatehosefailure. Free-moving,unsupportedhosesmustneverbeallowed totoucheachotherorrelatedworkingsurfaces.This TULI12WEX2014AA 11 O-rings condition.AlwayslubricatenewsealringsandO-rings 47500167A31/01/2013
INTRODUCTION Battery Batteriesgiveoffexplosivegases. Neverhandlenakedflamesandunshieldedlightsources instructions: • nectthenegative(-)cablefirst. • negative(-)cablelast. • • Donotweld,grindorsmokenearabattery. tainssulphuricacid.Avoidanycontactwiththeskin,eyes TULI12WEX2015AA Antidote: • clothing. • • EYES:Rinseabundantlywithwaterfor 15min • plodeifyouattempttochargethebatteryorifyoutryto starttheengineusingaboosterbattery.Alwayskeep Providegoodventilationwhenchangingabatteryorusing TULI12WEX2016AA Disposeofusedbatteriesseparatelyfromotherwastein TULI12WEX2017AA 47500167A31/01/2013 11
INTRODUCTION Flammableliquids Whenhandlingflammableliquids: • • Keepawayfromunshieldedlightsourcesandnaked Fuelsoftenhavealowflashpointandarereadilyignited. Use: • Drypowder • Withcarbondioxide • Withfoam stantaneouslyoncontactwithburningsubstancesand generatesshortcircuitsintheelectricalsystem,possibly TULI12WEX2016AA Stayawayfromopenflamesduringrefillingofhydraulic Alwaystightenthesafetyplugsoffueltankandhydraulic Neverusefueltocleanthemachinepartseventually TULI12WEX2018AA Duringrefuellingholdthepistolfirmlyandkeepitalways toavoidsparklesduetostaticelectricity. DonotoverfillthetankbutleaveaspaceforfuelexpanTakeallthenecessarysafetymeasureswhenwelding, TULI12WEX2019AA 47500167A31/01/2013
Cleaning
Solventsshouldbecheckedthattheyaresuitableforthe
INTRODUCTION Tyres Beforeinflatingthetyres,alwayschecktheconditionof Makesurethattheinflatingpressureoftyresisthesame prescribedbymanufacturerandthatthepressureofthe heattreatmentsorbrazingsnotperformedcorrectlycan ofapistolcompletewithextensionandpressureswitchof TULI12WEX2020AA
Cleantheexteriorofallcomponentsbeforecarryingout anyformofrepair.Dirtanddustcanreducetheefficient workinglifeofacomponentandleadtocostlyreplace-
cleaningofcomponentsandalsothattheydonotriskthe Dirtfromoilorgreaseandscatteredtoolsorfaultypieces solvents(evenifweak)damagethepaintandfavourthe formationofrust. otherelectriccomponents. TULI12WEX2021AA 47500167A31/01/2013
Wastedisposal
isthereforeadvisabletopreparesuitablecontainersto collectandstoremomentarilyallsolidandfluidmaterials thatmustnotbescatteredintheenvironmenttoavoid
TULI12WEX2022AA
Donotusefoodorbeveragecontainersthatmaymislead
conditioningrefrigerantsescapingintotheaircandamage theEarth’satmosphere.Governmentregulationsmayrequireacertifiedairconditioningservicecentretorecover
formationontheproperwaytorecycleordisposeofwaste
INTRODUCTION
quiringdisposal: • Lubricatingoil • Brakesystemoil • tifreeze • Fuel • • Filterelements,airfilters • Battery Alsopollutingrags,paper,sawdustandglovesmustbe
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