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928G Caterpillar Wheel Loader Operation and Maintenance Manual

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Product:WHEELLOADER

Model:928GWHEELLOADER6XR

Configuration:928GWheelLoader6XR00001-UP(MACHINE)POWEREDBY3116Engine

OperationandMaintenanceManual

928GWHEELLOADERHYDRAULICQUICKCOUPLERATTACHMENTTHISMODULEINCLUDES MediaNumber-GESR0052-00PublicationDate-01/05/1975DateUpdated-10/10/2001

GeneralHazardInformation

SMCS-7338

ManualInformation

Theinformationinthismanualspecificallyaddressesthemaintenance,operation,andrepairofthe attachment.

Thismanualshouldbestoredintheoperator'scompartmentintheliteraturefolderorseatbackliterature storagearea.

Thismanualcontainssafety,operation,transportation,lubrication,andmaintenanceinformation.

Somephotographsorillustrationsinthepublicationshowdetailsorattachmentsthatmaybedifferentfrom yourmachine.Guardsandcoversmayhavebeenremovedforillustrativepurposes.

Continuingimprovementandadvancementofproductdesignmayhavecausedchangestoyourmachine whicharenotincludedinthispublication.

Read,study,andkeepthismanualwiththemachine.

Whenaquestionarisesregardingyourattachment,ofthispublication,pleaseconsultyourCaterpillardealer forthelatestavailableinformation.

AttachmentSafetyOperation

Attacha"DONOTOPERATE"orsimilarwarningtagtostartswitchorcontrolsbeforeservicingor repairingthemachine.Thesetags,FormSEHS7332,areavailablefromyourCaterpillardealer.

Knowthewidthofyourattachmentsoproperclearancecanbemaintainedwhenoperatingnearfences, boundaryobstacles,etc.

Wearahardhat,protectiveglassesandotherprotectiveequipmentasrequiredbyjobconditions.

Information

Donotwearlooseclothingorjewelrythatcancatchoncontrolsorotherpartsofthemachine.

Makecertainallprotectiveguardsandcoversaresecuredinplaceonthemachine.

Neverputmaintenancefluidsintoglasscontainers.

Useallcleaningsolutionswithcare.

Reportallneededrepairs.

Donotallowunauthorizedpersonnelonthemachine.

Performallmaintenanceunlessotherwisespecifiedasfollows:

*Themachineparkedonlevelground.

*TheattachmentcontrolsinHOLD.

*ThetransmissioncontrolinNEUTRAL.

*Theparking/secondarybrakeengaged.

*Theenginestopped.

*Thekeystartswitchoffandthekeyremoved.

*Thedisconnectswitchoffandthekeyremoved.

ProtectiveEquipment

Alwayswearahardhat,protectiveglasses,protectiveshoesandotherprotectiveequipmentasrequiredby jobconditionswhenworkingaroundthisproduct.Inparticular,wearprotectiveglasseswhenpoundingon anypartoftheproductwithahammerorsledge.usewelder'sgloves,hood/goggles,apron,andother protectiveclothingappropriatetotheweldingjobbeingperformed.

PressurizedItems

Relieveallpressureinair,oilorwatersystemsbeforeanylines,fittings,orrelateditemsaredisconnectedor removed.Alwaysmakesureallraisedcomponentsareblockedcorrectlyandbealerttopossibletrapped pressurewhendisconnectinganydevicethatutilizespressure.

Lowertheattachmenttothegroundbeforeperforminganywork.Ifthiscannotbedone,makesurethe attachmentisblockedcorrectlytopreventitfromdroppingunexpectedly.

Pressureaircancausepersonalinjury.Whenusingpressureairforcleaning,wearaprotectivefaceshield, protectiveclothingandprotectiveshoes.

Themaximumairpressuremustbebelow205kPa(30psi)forcleaningpurposes.

FluidPenetration

Alwaysuseaboardorcardboardwhencheckingforaleak.Escapingfluidunderpressure,evenapin-hole sizeleak,canpenetratebodytissue,causingseriousinjuryandpossibledeath.Iffluidisinjectedintoyour skin,itmustbetreatedbyadoctorfamiliarwiththistypeofinjuryimmediately.

Lifting

Useahoistwhenliftingcomponentsthatweigh23kg(50lb)ormore,toavoidbackinjury.Makesureall chains,hooks,slings,etc.areingoodconditionandarethecorrectcapacity.Besurehooksarepositioned correctly.Liftingeyesarenottobeexcessivelysideloadedduringaliftingoperation.

CrushingOrCuttingPrevention

Properlysupporttheequipmentortheattachmentwhenworkingbeneaththeequipmentorattachment.Do notdependonhydrauliccylinderstoholditup.Anyattachmentcanfallifacontrolismoved,orifa hydrauliclinebreaks.

Neverattemptadjustmentswhilethemachineismovingortheengineisrunningunlessotherwisespecified.

Whenthereareattachmentlinkages,theclearanceinthelinkageareawillincreaseanddecreasewith movementoftheattachment.

Donotuseakinkedorfrayedwireropecable.Weargloveswhenhandlingawireropecable.

Retainingpins,whenstruckwithforce,canflyoutandinjurenearbypersons.Makesuretheareaisclearof peoplewhendrivingtheretainerpins.

Wearprotectiveglasseswhenstrikingaretainerpintoavoidinjurytoyoureyes.

Chipsorotherdebriscanflyoffobjectswhenstruck.Makesurenoonecanbeinjuredbyflyingdebris beforestrikinganyobject.

BurnPrevention

Hotoilandoil-carryingcomponentscancausepersonalinjury.Donotallowhotoiloroil-carrying componentstocontactyourskin.

Relieveallpressureintheairandoilsystemsbeforeanylines,fittings,tubes,hoses,orrelateditemsare disconnectedorremoved.

FireAndExplosionPrevention

Mostlubricantsareflammable.

Cleanandtightenallelectricalconnections.Checkdailyforlooseorfrayedelectricalwires.Havealllooseor frayedelectricalwirestightened,repaired,orreplacedbeforeoperatingthemachine.

Keepalllubricantsstoredinproperlymarkedcontainersandawayfromallunauthorizedpersons.

Storealloilyragsorotherflammablematerialinaprotectivecontainer,inasafeplace.

Donotweldorflamecutonpipesortubesthatcontainflammablesolventbeforeweldingorflamecuttingon them.

Removeallflammablematerialssuchasoilorotherdebrisbeforetheyaccumulateontheattachment.

Looseordamagedlubricationandhydrauliclines,tubesandhosescancausefires.Donotbendorstrikehigh pressurelinesorinstalloneswhichhavebeenbentordamaged.Checklines,tubes,andhosescarefully.Do notuseyourbarehandstocheckforleaks.Pinholeleakscanresultinahighvelocityfluidstreamthatwill beinvisibleclosetothehose,tubeorline.

SafetySigns

ReadandunderstandallWarningsignsontheproductbeforeoperating,lubricating,orrepairingthisproduct. Replaceanydamaged,illegibleormissingwarningplates,signsordecals.

Repair

1.Disconnectbatteryanddischargeanycapacitorsbeforestartingtoworkontheproduct.Attacha"DoNot Operate"tagintheOperator'sCompartment.Thesetags,FormNumberSEHS7332,areavailablefromyour CaterpillarDealer.

2.Ifpossible,makerepairswiththemachineparkedonalevel,hardsurface.Blockmachinetopreventit fromrollingwhileworkingonorundermachine.

3.Donotworkonanyattachmentsupportedonlybyliftjacksorahoist.Alwaysuseblocksorjackstandsto supporttheattachmentbeforeperforminganyserviceordisassembly.

4.Becarefulwhenremovingcoverplates.Graduallybackoffthelasttwoboltsornutslocatedatthe oppositeendsofthecoverordevice.Then,prythecoverloosetorelieveanyspringorotherpressure,before removingthelasttwoboltsandnutscompletely.

5.Alwaysusetoolsthatareingoodconditionandbesureyouunderstandhowtousethembefore performinganyserviceoperation.

6.Replaceallfastenerswiththesamepartnumber.Donotusealesserqualityfastenerifreplacementsare necessary.

7.Weldingrepairsshouldbeperformedonlywiththebenefitoftheappropriatereferenceinformationandby personneladequatelytrainedandknowledgeableinweldingprocedures.Determinetypesofmetalbeing weldedandselectcorrectweldingprocedureandelectrodes,rods,orwiretoprovideaweldmetalstrength equivalentorbetterthantheparentmetal.

8.Donotdamagewiringduringremovaloperation.Reinstallthewiringsoitisnotdamagedorwillnotbe damagedinoperationbycontactingsharpcorners,orbyrubbingagainstsomeobjectorhotsurface.Donot connectwiringtoalinecontainingfluid.

9.Besureallprotectivedevicesincludingguardsandshieldsareproperlyinstalledandfunctioningcorrectly beforestartingarepair.Ifaguardorshieldmustberemovedtoperformtherepairwork,useextracaution. Repairanylooseordamagedfluidlines,tubes,orhosesbecauseleakscancausefires./

10.Tightenconnectionstothecorrecttorque.Allheatshields,clamps,andguardsmustbeinstalledcorrectly toavoidexcessiveheat,vibration,orrubbingagainstotherpartsduringoperation.

11.Storeragsthathaveoilorotherflammablematerialonthem,inprotectivecontainers,awayfromopen fires,weldingorcuttingareas.

Product:WHEELLOADER

Model:928GWHEELLOADER6XR

Configuration:928GWheelLoader6XR00001-UP(MACHINE)POWEREDBY3116Engine

OperationandMaintenanceManual

928GWHEELLOADERHYDRAULICQUICKCOUPLERATTACHMENTTHISMODULEINCLUDES MediaNumber-GESR0052-00PublicationDate-01/05/1975DateUpdated-10/10/2001

Introduction

SMCS-7338

Whenthewords"useagain"areinthedescription,thespecificationgivencanbeusedtodetermineifapart canbeusedagain.Ifthepartisequaltoorwithinthespecificationgiven,usethepartagain.

Whentheword"permissible"isinthedescription,thespecificationgivenisthe"maximumorminimum" tolerancepermittedbeforeadjustment,repairand/ornewpartsareneeded.

Acomparisoncanbemadebetweenthemeasurementsofawornpartandthespecificationsforanewpartto findtheamountofwear.Apartthatisworncanbesafetouseifanestimateoftheremainderofitsservice lifeisgood.Ifashortservicelifeisexpected,replacethepart.

Disconnectbatteriesbeforeperformanceofallserviceworkwiththe exceptionofperformingvoltagetesting.

Atoperatingtemperature,thehydraulicoiltankishotandunder pressure.Hotoilcancauseburns.Removethebreatherfiltercaponly whentheengineisstoppedandthebreatherfiltercapiscoolenoughto touch.Slowlyloosenthebreathercaptoreleaseanypressureinthe hydraulictank.Becautiousofhotoilwhenanylinesaredisconnectedin thehydraulicsystem.

HydraulicCoupler

HydraulicQuickCoupler
HydraulicQuickCoupler

FriMar1210:42:59UTC+05302021

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Product:WHEELLOADER

Model:928GWHEELLOADER6XR Configuration:928GWheelLoader6XR00001-UP(MACHINE)POWEREDBY3116Engine

OperationandMaintenanceManual

LOCKED-Movetheleverlockandpushthepinintothehole.Thislockstheattachmentcontrollever.

NOTE:PlacetheattachmentcontrolleverintotheLOCKEDpositionifyouareroadingthemachineoryou aretransportingthemachine.

UNLOCKED-Pullthepinoutofthehole.Movetheleverlockawayfromtheattachmentcontrollever.This releasestheattachmentcontrollever.

AttachmentAuxiliaryControl

SMCSCode:5063;5258;5700

Movethedivertervalvelevertotheauxiliarypositioninordertodivertflowtotheattachment.

Pullbacktheleverinordertopressurizetheleftsupplyline.

Pushtheleverforwardinordertopressurizetherightsupplyline.

Divertervalvelevermustbereturnedtotheverticalauxiliaryposition beforeoperatinghydraulicattachmentstoensurecouplerpinsare locked.Failuretodosomaycausetheattachmenttofalloffandcausing personalinjury.

SMCSCode:5056;5258;5700

Improperattachmentofattachmentscouldresultininjuryordeath.

Donotoperatethismachineuntilyouhavepositiveindicationthatthe couplerpinsarefullyengaged.Checkforengagementby:

1.Pushthetiltcontroltotilttheattachmentdown.

2.Putdownpressureontheattachment.

3.Backthemachineupandmakesurethereisnotmovement betweentheattachmentandthecoupler.

Movethedivertervalvelevertothecouplerpositioninordertoprovideflowtothecoupler.

Disengage(1)-Movethelevertoposition(1)inordertodisengagethecouplerpins.Releasetheleverin ordertoreturnthelevertotheHOLDposition.

Hold(2)-Releasethelever.Thecouplerpinswillremainintheengagedpositionorinthedisengaged position.

Engage(3)-Movethelevertoposition(3)inordertoengagethecouplerpins.Releasetheleverinorderto returnthelevertotheHOLDposition.

OperatingTechniques AttachmentCouplerOperation

Improperattachmentofattachmentscouldresultininjuryordeath.

Donotoperatethismachineuntilyouhavepositiveindicationthatthe couplerpinsarefullyengaged.Checkforengagementby:

1.Pushthetiltcontroltotilttheattachmentdown.

2.Putdownpressureontheattachment.

3.Backthemachineupandmakesurethereisnotmovement betweentheattachmentandthecoupler.

1.Pushtheattachmentcouplerleverforwardinordertodisengagethecouplerpins.

2.Tiltthecouplerassemblyforward.

3.Slowly,drivethemachineforward.Aligntheattachmenthookswiththecouplerassembly.

4.Pullbackontheliftleverinordertoslightlyraisethecoupler.Raisethecoupleruntilthecouplerassembly contactstheattachmenthooksandtheattachmentisliftedupslightly.

Makesurethattheattachmentislevelfromonesidetotheotherside.

5.Tiltbackthecouplerassemblyuntilthealignmentbaroftheattachmentcontactsthecoupler.

6.Pullbackonthecouplerleverinordertoengagethecouplerpinsintotheattachmentretainer.

NOTE:Ensurethatthetoolisfirmlyattachedandcontinuewithsteps7through9.

This is the sample of the manual Click on the download link for complete Manual

7.Pushthetiltleverinordertotilttheattachmentdownward.

8.Pushtheliftleverforwardinordertoputdownpressureontheattachment.

9.Backupthemachineandmakesurethatthereisnomovementbetweentheattachmentandthecoupler. Steps7through9indicatethatthecouplerpinshavefullyengagedintotheattachmentretainerholes.

AttachmentsThatRequireHydraulics

Followtheprocedurethatisdescribedin"FrontAttachmentCouplerforToolsThatDoNotRequire Hydraulics".

Auxiliaryquickconnectors(1)withdivertervalve(2)intheauxiliaryposition.

Divertervalvelevermustbereturnedtotheverticalauxiliaryposition beforeoperatinghydraulicattachmentstoensurecouplerpinsare locked.Failuretodosomaycausetheattachmenttofalloffandcausing personalinjury.

Beforeconnectingordisconnectingthequickdisconnectplugs,followthehintsbelow.

1.Stoptheengine.

2.Moveallofthehydraulicattachmentcontrolleversinordertorelievethepressureinthehydrauliclines.

3.ReturnalloftheleverstotheHOLDposition.

ConnectingLinesAndDisconnectingLines

1.Disconnectthehydrauliclinesofthetoolthatwillbeused.Wipeoffallforeignmaterial.

2.Removetheplugsandconnectthelines.

Whencarriermachinesareequippedwithfrontattachmentsotherthan buckets,liftingaloadthatisgreaterthanshownintheLoadingChart forthatmachinecouldcausetheattachmenttorotatedownward, allowingtheloadtoslideorpitchforwardresultinginpersonalinjury ordeath.

Thecombinedweightofthecoupler,attachment,andloadmustnotbegreaterthanthemaximumallowable loadattheloadapplicationpointasshownintheLoadingChartforthecarriermachine.Theweightofthe coupleris250kg.

Whencarriermachinesareequippedwithfrontattachmentsotherthan buckets,liftingaloadthatisgreaterthanshownintheLoadingChart forthatmachinecouldcausetheattachmenttorotatedownward, allowingtheloadtoslideorpitchforwardresultinginpersonalinjury ordeath.

Thecombinedweightofthecoupler,attachment,andloadmustnotbegreaterthanthemaximumallowable loadattheloadapplicationpointasshownintheLoadingChartforthecarriermachine.Theweightofthe coupleris551lb.

FriMar1210:43:10UTC+05302021

Product:WHEELLOADER

Model:928GWHEELLOADER6XR

Configuration:928GWheelLoader6XR00001-UP(MACHINE)POWEREDBY3116Engine

OperationandMaintenanceManual

Specifications

StandardTorqueForFasteners

NOTE:Takecaretoavoidmixingmetricandinchdimensionedfasteners.Mismatchedorincorrectfasteners canresultinvehicledamageormalfunction,orpossibleinjury.Exceptionstothesetorquesaregiveninthis ServiceManualwhereneeded.

NOTE:Priortoinstallationofanyhardware,besurecomponentsareinsatisfactorycondition.Boltand threadsmustnotbewornordamaged.Hardwaremustbefreeofrustandcorrosion.Cleanhardwarewitha non-corrosivecleanerandapplyengineoiltothreadsandbearingface.Ifthreadlockorothercompoundsare tobeapplied,donotapplyengineoil.

StandardTorqueForO-RingFaceSealFittingsAnd37°FlaredFittings

NOTE:Use50percentoftheabovetorquevalueswheneitherthefittingorportmaterialisnon-ferrous.

O-RingFaceSealFitting

O-RingFaceSealFittings

1.O-ringfacesealfitting.2.O-ringgroove.3.O-ringfacesealnut.4.O-ring.5.StraightthreadO-ringportendfitting.

FittingInstallation

HydraulicLineInstallation

1.Forametaltubetohoseconnection,installthetubeandtightenallboltsfingertight.

2.Tightentheboltsattherigidend.

3.Installthehoseandtightenallboltsfingertight.

4.Putthehoseinapositionsothatisdoesnotmakecontactwiththemachineoranotherhose.

5.Tightentheboltsonbothconnections.

6.Starttheengine.

7.Movetheimplementcontrolleverstoallpositions.

8.Lookatthehoseduringmovementoftheimplement.Makesurehoseisnotincontactwiththemachineor otherhoses.

9.Shutofftheengine.

10.Ifnecessary,putthehoseinanewpositionwhereitwillnotmakecontactwhentheimplementismoved.

AssemblyOffFittingsWithStraightThreadsAndO-RingSeals

Thistypeoffittingisusedinmanyapplications.Thetubeendofthefittingwillbedifferentindesignsothat itcanbeusedinmanydifferentapplications.However,theinstallationprocedureofthefittingisthesame.If thetubeendofthefittingbodyisthesameasintheinstallation(eitheranelboworastraightbody)itwillbe necessarytoassemblethesleeveonthetubebeforeconnectingthetubetotheend.

1.Endoffittingbody(connectstotube).2.Fittingbody.3.Locknut.4.Backupwasher.5.O-ringseal.6.Endoffittingthatgoes intootherparts.

1.Putlocknut(3),backupwasher(4)andO-ringseal(5)asfarbackonthefittingbody(2)aspossible.Hold thesecomponentsinthisposition.Turnthefittingintothepartitisusedonuntilbackupwasher(4)just makescontactwiththefaceofthepartitisusedon.

2.Toputthefittingassemblyinitscorrectposition,turnthefittingbody(2)out(counterclockwise)a maximumof359degrees.Tightenlocknut(3)tothetorqueshowninthecorrectchartforthefittingused.

NOTE:Ifthefittingisaconnector(straightfitting),thehexonthebodytakestheplaceofthelocknut.To installthistypeoffitting,tightenthehexagainstthefaceofthepartitgoesinto.

TorquesForFlaredAndO-RingFittings

Thetorquesshowninthechartsthatfollowaretobeusedonthenutpartof37DegreeFlared,45Degree Flared,andinvertedFlaredfittings(whenusedwithsteeltubing),O-Ringplugs,O-Ringfittingsandswivel nutswhenusedinapplicationsto20700kPa(3000psi)

37°FlaredFittings

45°Flaredand45°InvertedFlareFittings

TaperedPipeThreadFittings

TighteningOtherFittings

HiDuty(ShearSleeve)TubeFittings

Aftertubehasbeenputthroughthenutandmakescontactagainstthetubeshoulderinthefittingbody,turn thenutwithawrenchuntilasmalldecreaseintorqueisfelt.Thisisanindicationthatthesleevehasbeen brokenoffthenut.Holdthetubetopreventturningandtightenthenut11/2turns.

HiSealFittings

Putnutandsleeveoverthetubingwiththeshortheavyendofthesleevefacingtheendoftubing.Putthe tubeendagainstthecounterboreinthebodyofthefittingandtightenuntilnutisoverthelastthreadonthe body.Theremainderofspaceisusedwheneverthefittingisremovedandinstalledagain.

TorquesForConstantTorqueHoseClamps

Aconstanttorquehoseclampcanbeusedinplaceofanystandardhoseclamp.Makesuretheconstant torquehoseclampisthesamesizeasthestandardclamp.Duetoextremetemperaturechanges,hosewill heatseat.Heatsettingcauseshoseclampstoloosen.Loosehoseclampscanresultinleaks.Therehavebeen reportsofcomponentfailurescausedbyhoseclampsloosening.Thenew,constanttorquehoseclampwill helppreventthesefailures.

Eachinstallationapplicationcanbedifferentdependingonthetypeofhose,fittingmaterialandanticipated expansionorcontractionofthehoseandfittings.Atorquewrenchshouldbeusedforproperinstallationof thenew,constanttorquehoseclamps.Constanttorquehoseclampsshouldbeinstalledasfollows:

*Toallowformaximumexpansioninstallclampsat5.7N·m(50lbin).

*Toallowforequalexpansionandcontraction,installclampsat10.2N·m(90lbin).

*Toallowformaximumcontraction,installclampsat14.1N·m(125lbin).

FriMar1210:43:25UTC+05302021

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