WarningSignsandLabels
Thereareseveralspecificsafetysignsonyourmachine.Theirexactlocationanddescriptionofthe hazardarereviewedinthissection.Pleasetakethetimetofamiliarizeyourselfwiththesesafetysigns.
Makesurethatyoucanreadallsafetysigns.Cleanorreplacetheseifyoucannotreadthewordsor seethepictures.Whencleaningthelabelsuseacloth,waterandsoap.Donotusesolvent,gasoline, etc.
Youmustreplacealabelifitisdamaged,missingorcannotberead.Ifalabelisonapartthatis replaced,makesureanewlabelisinstalledonthereplacedpart.SeeyourCaterpillardealerfornew labels.
Donotoperateorworkonthemachineunlessyouhavereadand understandtheinstructionsandwarningsintheOperationsand MaintenanceManual.Failuretofollowtheinstructionsorheedthe warningscouldresultininjuryordeath.ContactanyCaterpillardealer forreplacementmanuals.Propercareisyourresponsibility.
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Locatedinthecab.
Stayclearofthisareawhenmachineisoperating.Youcanbecrushed byswingingboom.
Locatedonrearofmachine.
GeneralHazardInformation
Attach"DONOTOPERATE"orsimilarwarningtagtostartswitchorcontrolsbeforeservicingor repairingthemachine.Thesetags,FormSEHS7332,areavailablefromyourCaterpillardealer.
Wearahardhat,protectiveglassesandotherprotectiveequipmentasrequiredbyjobconditions.
Donotwearlooseclothingorjewelrythatcancatchoncontrolsorotherpartsofthemachine.
Makecertainallprotectiveguardsandcoversaresecuredinplaceonthemachine.
Keepthemachine,especiallytheplatformdoorwaysandsteps,freeofforeignmaterial,suchas debris,oil,toolsandotheritemswhicharenotpartofthemachine.
Securealllooseitemssuchaslunchboxes,toolsandotheritemswhicharenotpartofthemachine.
Knowtheappropriatework-sitehandsignalsandwhogivesthem.Acceptsignalsfromoneperson only.
Neverputmaintenancefluidsintoglasscontainers.
Useallcleaningsolutionswithcare.
Reportallneededrepairs.
Donotallowunauthorizedpersonnelonthemachine.
*Theparkingbrakeengaged.
*Theloaderbucketloweredtotheground.
*Thebackhoeintransportposition.
*Thetransmissionleversinneutralandforward-reverse(neutral)lockengaged.
*Theenginestopped.
*Thestartswitchkeyremoved.
PressureAir
Pressureaircancausepersonalinjury.Whenusingpressureairforcleaning,wearaprotectiveface shieldandprotectiveclothing.
Themaximumairpressuremustbebelow205kPa(30psi)forcleaningpurposes.
FluidPenetration
Alwaysuseaboardorcardboardwhencheckingforaleak.Escapingfluidunderpressure,evenapinholesizeleak,canpenetratebodytissue,causingseriousinjury,andpossibledeath.Iffluidisinjected intoyourskin,itmustberemovedsurgicallybyadoctorfamiliarwiththiskindofinjurywithinafew hours.
AsbestosInformation
Cautionshouldbeusedtoavoidbreathingdustthatmaybegeneratedwhenhandlingcomponents containingasbestosfibers.Ifthisdustisinhaled,itcanbehazardoustoyourhealth.Componentsin Caterpillarproductsthatmaycontainasbestosfibersarebrakepads,brakebandandlining assemblies,clutchplatesandsomegaskets.Theasbestosusedinthesecomponentsisusuallybound inaresinorsealedinsomeway.Normalhandlingisnothazardousaslongasairbornedustwhich containsasbestosisnotgenerated.
Ifdustwhichmaycontainasbestosispresent,thereareseveralcommonsenseguidelinesthatshould befollowed.
1.Neverusecompressedairforcleaning.
2.Avoidbrushingorgrindingofasbestoscontainingmaterials.
3.Forcleanup,usewetmethodsoravacuumequippedwithahighefficiencyparticulateair(HEPA) filter.
4.Useexhaustventilationonpermanentmachiningjobs.
5.Wearanapprovedrespiratorifthereisnootherwaytocontrolthedust.
6.Complywithapplicablerulesandregulationsfortheworkplace(forexampleintheU.S.A.,OSHA requirementsassetforthin29CFR1910.1001).
7.Followenvironmentalrulesandregulationsfordisposalofasbestos.
8.Avoidareaswhereasbestosparticlesmaybeintheair.
CrushingorCuttingPrevention
Supportloaderandbackhoebucketsandlinkagesproperlywhenworkingbeneaththem.Donot dependonhydrauliccylinderstoholdthemup.Anyimplementcanfallifacontrolismoved,ora hydrauliclinebreaks.
Neverattemptadjustmentswhilethemachineismovingortheengineisrunningunlessotherwise specified.
Wherethereareimplementlinkages,theclearanceinthelinkageareawillincreaseordecreasewith movementoftheimplement.
Stayclearofallrotatingandmovingparts.
Keepobjectsawayfrommovingfanblades.Theywillthroworcutanyobjectortoolthatfallsoris pushedintothem.
Donotuseakinkedorfrayedwireropecable.Weargloveswhenhandlingthewireropecable.
Retainerpins,whenstruckwithforce,canflyoutandinjurenearbypersons.Keeppersonnelaway fromarea.
Wearprotectiveglasseswhenstrikingaretainerpintoavoidinjurytoyoureyes.
Chipsorotherdebriscanflyoffobjectswhenstruck.Makesurenoonecanbeinjuredbyflying debrisbeforestrikinganyobject.
BurnPrevention
Coolant
Atoperatingtemperature,theenginecoolantishotandunderpressure.Theradiatorandalllinesto heatersortheenginecontainhotwaterorsteam.Anycontactcancausesevereburns.
Steamcancausepersonalinjury.
Checkthecoolantlevelonlyaftertheenginehasbeenstoppedandthefillercapiscoolenoughto removewithyourbarehand.
Removethecoolingsystemfillercapslowlytorelievepressure.
Coolingsystemconditionercontainsalkalithatcancausepersonalinjury.Avoidcontactwiththeskin andeyesanddonotdrink.
Allowcoolingsystemcomponentstocoolbeforedraining.
Oils
Hotoilandcomponentscancausepersonalinjury.Donotallowhotoilorcomponentstocontactthe skin.
Atoperatingtemperature,thehydraulictankishotandcanbeunderpressure.
Removethehydraulictankfillercaponlyaftertheenginehasbeenstoppedandthefillercapiscool enoughtoremovewithyourbarehand.
Removethehydraulictankfillercapslowlytorelievepressure.
Relieveallpressureinoil,fuelorcoolingsystemsbeforeanylines,fittingsorrelateditemsare disconnectedorremoved.
Batteries
Batteriesgiveoffflammablefumeswhichcanexplode.
Donotsmokewhenobservingthebatteryelectrolytelevels.
Electrolyteisanacidandcausepersonalinjuryifitcontactsskinoreyes.
Alwayswearprotectiveglasseswhenworkingwithbatteries.
FireorExplosionPrevention
Allfuels,mostlubricantsandsomecoolantmixturesareflammable.
Fuelleakedorspilledontohotsurfacesorelectricalcomponentscancauseafire.
Donotsmokewhilerefuelingorinarefuelingarea.
Donotsmokeinareaswherebatteriesarecharged,orwhereflammablematerialsarestored.
Batteriesinseriesmaybelocatedinseparatecompartments.Whenusingjumpercablesalways connectpositive(+)cabletopositive(+)terminalofbatteryconnectedtostartersolenoidand negative(-)cablefromexternalsourcetostarternegative(-)terminal.(Ifnotequippedwithstarter negativeterminal,connecttoengineblock.)
Seethe"OperationSection"ofthismanualforspecificjumpstartinginstructions.
Cleanandtightenallelectricalconnections.Checkdailyforlooseorfrayedelectricalwires.Haveall looseorfrayedelectricalwirestightened,repairedorreplacedbeforeoperatingthemachine.
Keepallfuelsandlubricantsstoredinproperlymarkedcontainers.Storeandlockthemawayfromall unauthorizedpersons.
Storealloilyragsorotherflammablematerialinaprotectivecontainer,inasafeplace.
Donotweldorflamecutonpipesortubesthatcontainflammablefluids.Cleanthemthoroughlywith nonflammablesolventbeforeweldingorflamecuttingonthem.
Removeallflammablematerialssuchasfuel,oilandotherdebrisbeforetheyaccumulateonthe machine.
Donotexposethemachinetoflames,burningbrush,etc.
Shields,whichprotecthotexhaustcomponentsfromoilorfuelsprayintheeventofaline,tubeor sealfailure,mustbeinstalledcorrectly.
Haveafireextinguisheravailableandknowhowtouseit.Inspectandhaveitservicedas recommendedonitsinstructionplate.
Ether
Etherispoisonousandflammable.
Breathingethervaporsorrepeatedcontactofetherwithskincancausepersonalinjury.
Useetheronlyinwellventilatedareas.
Donotsmokewhilechangingethercylinders.
Useetherwithcaretoavoidfires.
Donotstorereplacementethercylindersinlivingareasorintheoperator'scompartment.
Donotstoreethercylindersindirectsunlightorattemperaturesabove39°C(102°F).
Discardcylindersinasafecontainer.Donotpunctureorburncylinders.
Keepethercylindersoutofthereachofunauthorizedpersonnel.
Lines,TubesandHoses
Donotbendorstrikehighpressurelines.Donotinstallbentordamagedlines,tubesorhoses.
Repairanylooseordamagedfuelandoillines,tubesandhoses.Leakscancausefires.Contactyour Caterpillardealerforrepairorreplacement.
Inspectalllines,tubesandhosescarefully.Donotuseyourbarehandtocheckforleaks.Useaboard orcardboardtocheckforleaks.See"FluidPenetration"inthe"Safety"sectionformoredetails. Checkandtightenallconnectionstotherecommendedtorqueperiodically.Replaceifanyofthe followingconditionsarefound.
1.Endfittingsdamagedorleaking.
2.Outercoveringchafedorcutandwirereinforcingexposed.
3.Outercoveringballooninglocally.
4.Evidenceofkinkingorcrushingoftheflexiblepartofhose.
5.Armouringembeddedintheoutercover.
6.Endfittingsdisplaced.
Makesurethatallclamps,guardsandheatshields,areinstalledcorrectlytopreventvibration,rubbing againstotherpartsandexcessiveheatduringoperation.
Explosionsofair-inflatedmachinetireshaveresultedfromheat-inducedgascombustioninsidethe tires.Theheat,generatedbyweldingorheatingrimcomponentsorexternalfirecancausegaseous combustion.
Atireexplosionismuchmoreviolentthanablowout.Theexplosioncanpropelthetire,rimandfinal drivecomponentsasfaras500m(1500ft)ormorefromthemachine.Boththeforceoftheexplosion andtheflyingdebriscancausepersonalinjuryordeath,andpropertydamage.
Donotapproachatirecloserthantheoutsideofthearearepresentedbytheshadedareaintheabove drawing.
Standbehindthetreadanduseaself-attachingchuckwheninflatingatire.
Servicingandchangingtiresandrimscanbedangerousandshouldbedoneonlybytrainedpersonnel usingpropertoolsandprocedures.Ifcorrectproceduresarenotfollowedwhileservicingtiresand rims,theassembliescouldburstwithexplosiveforceandcauseseriouspersonalinjuryordeath. Followcarefullythespecificinformationprovidedbyyourtireorrimservicingmanordealer.
MountingandDismounting
Mountanddismountthemachineonlywherestepsand/orhandholdsareprovided.
Usebothhandsandfacethemachine,whenmountinganddismounting.Maintainathreepointhand and/orfeetcontactonmountinghardware.
Nevergetonoroffamovingmachine.Neverjumpoffthemachine.
Donottrytoclimbonoroffthemachinewhencarryingtoolsorsupplies.
BeforeStartingtheEngine
Starttheengineonlyfromtheoperator'sstation.Nevershortacrossthestarterterminalsoracrossthe batteries,asthiscouldbypasstheengineneutral-startsystemaswellasdamagetheelectricalsystem.
Inspecttheconditionoftheseatbeltandmountinghardware.Replaceanydamagedorwornparts. Replacetheseatbeltregardlessofappearanceafterthreeyearsofuse,becauseofdeteriorationof material.
Adjusttheseatsothatfullbrakepedaltravelcanbeobtainedwiththeoperator'sbackagainsttheseat back.
Makesurethepedallockbarisinlockedpositionabove1stgeartopreventsuddenturning.
Makesurethemachineisequippedwithalightingsystemasrequiredbyconditions.
Makesurealllightsareworkingproperly.
Checkforleaks,cracks,looseormissingbolts,tireormachinedamage.
Makesurenooneisworkingon,underneathorclosetothemachinebeforestartingtheengineor beginningtomovethemachine.Makesuretheareaisfreeofpersonnel.
EngineStarting
Donotstarttheengineormoveanyofthecontrolsifthereisa"DONOTOPERATE"orsimilar warningtagattachedtothestartswitchorcontrols.
MoveallimplementcontrolstotheHOLDpositionbeforestartingtheengine.
Engagetheparkingbrake.ShiftthetransmissioncontrolleverstoNEUTRALandengagethe Forward-Reverse(Neutral)lock.
Avoidpossibleinjuryordeathfromarunawaymachine.Starttheengineonlywhilefacingforward andseatedintheoperator'sseat.Turnseattobackhoeoperationafterstarting.
Startandoperatetheengineinawellventilatedareaonly.Inanenclosedarea,venttheexhausttothe outside.
BeforeOperatingtheMachine
Stabilizersmustbeinthecorrectposition,beforeoperatingthemachine.Raisestabilizerscompletely fortransportorforloaderoperation.Lowerstabilizersbeforeoperatingbackhoe.DONOTDIG UNDERTHESTABILIZERS.
Clearallpersonnelfromthemachineandthearea.Makesurepersonnelarenotinreachofbackhoeor inpathofloader.
Clearallobstaclesfromthepathofthemachine.Bewareofhazardssuchaswires,powerlines, ditches,etc.
Oncabequippedmachines,besureallwindowsareclean.Securethedoorsandwindowsineitherthe openorshutpositionwhileoperating.
Forbestvision,especiallyclosetothemachine,adjusttherearviewmirrors.
Makesurethemachinehorn,theback-upalarm(ifequipped)andallotherwarningdevicesare workingproperly.
Fastentheseatbeltsecurely.
Checkforproperoperationofallcontrolsandprotectivedeviceswhilemovingslowlyinanopen area.
MachineOperation
Whenoperatingthebackhoe,engagetheparkingbrake,puttransmissioninneutral,andENGAGE FORWARD-REVERSELOCK.
Operatethemachineonlywhileseated.
Operatethecontrolsonlywiththeenginerunningunlessservicingmachine.
Theoperatormustsatisfyhimselfthatnoonewillbeendangeredbeforemovingoroperatingthe machine.
Donotallowridersonthemachineunlessadditionalseat,seatbeltandRolloverProtectiveStructure (ROPS)areprovided.
Reportanyneededrepairsnotedduringoperation.
Carryloaderbucketclosetotheground.Backhoeshouldbeintransportposition.
Stayasafedistancefromtheedgeofcliffs,overhangsandslideareas.
Ifthemachinebeginstosidesliponagrade,immediatelydisposeoftheloadandturnthemachine downhill.
Avoidconditionswhichcouldleadtotippingwhenworkingonhills,banksorslopes,andwhen crossingditches,ridgesorotherobstructions.
Workupanddownslopes,ratherthansideways,wheneverpossible.
Keepthemachineundercontrolanddonotworkitoveritscapacity.
Besurehitchpointsandthetowingdeviceareadequate.
Connecttrailingequipmenttoadrawbarorhitchonly.
Neverstraddleawireropecableorsimilardevice,norallowotherstodoso.
Personnelshouldnotbebetweenthemachineandequipmentwhenmaneuveringtoconnectthem. Blockthetongueorhitchoftrailingequipmenttoalignitwiththedrawbarorhitch.
Knowthemaximumheightandreachofyourmachine.
AlwayskeeptheRolloverProtectiveStructure(ROPS)(ifequipped)installedwhenoperatingthe machine.
Donotoperatethemachineabove2ndgearwithaloadedbucket.
Donotnegotiateturnsathighermachinespeedswithaloadedbucketmorethan380mm(15in)off thegroundtoavoidpossibletipping.
Raisetheloaderbuckettomaximumheightonlyforloadingahaulingunit.
MachineParking
Parkonalevelsurfaceifpossible.Ifnecessarytoparkonagrade,blockthemachine.
Applytheservicebrakestostopthemachine.Engagetheparkingbrake.
ShiftthetransmissioncontrollevertoNEUTRAL.Applytheneutrallock.
Lowertheloaderbuckettothegroundandapplyslightdownpressure.
Putthebackhoeinthe"transportposition".Installtheswinglockpininbackhoe.
Stoptheengine.
TurnthestartswitchkeytotheOFFposition.
SunApr702:21:22UTC+05302024
Product:BACKHOELOADER
Model:446BACKHOELOADER6XF
Configuration:446BACKHOELOADER6XF00001-UP(MACHINE)POWEREDBY3114ENGINE
OperationandMaintenanceManual
446BACKHOELOADER
MediaNumber-SEBU6262-01PublicationDate-01/01/1990DateUpdated-11/10/2001
ProductIdentificationandSerialNumberLocations
SMCS-1264-015
TheProductIdentificationNumber(PIN)willbeusedtoidentifypoweredearthmovingequipment thatisdesignedforanoperatortoride.
Caterpillarproductssuchasearthmovingequipmentnotdesignedforanoperatortoride(engines, transmissions,etc.)areidentifiedbySerialnumbers.Also,mostmajorCaterpillarattachmentsare identifiedbySerialNumbers.
Forquickreference,recordtheidentificationnumbersinthespacesprovidedbelowthephotographs.
Copyright1993-2024CaterpillarInc. AllRightsReserved. PrivateNetworkForSISLicensees.
SunApr702:22:17UTC+05302024
Product:BACKHOELOADER
Model:446BACKHOELOADER6XF
Configuration:446BACKHOELOADER6XF00001-UP(MACHINE)POWEREDBY3114ENGINE
OperationandMaintenanceManual
446BACKHOELOADER
MediaNumber-SEBU6262-01PublicationDate-01/01/1990DateUpdated-11/10/2001
SpecificationsandModelViews
SMCS-1264-015
ModelViews
Engine(1),fueltank(2),loaderbucket(3),caborcanopy(4).
Batterycompartment(5),stabilizer(6),backhoebucket(7)andradiator(8).
MachineSpecifications
Transmission4-speedforwardandreverse-fullpowershiftCaterpillarcountershaftelectricshift. Constantmeshgearsonallratiospermitson-the-goshifting1stthrough4thanddown4ththrough1st. Neutralstartprovisionpreventsstartingmachineingear.
TransmissionDisconnect
Handoperatedpowerdisconnectforon-the-goshiftingandfastloaderlift,dumpandlowerwith enginerunningathighrpm.
ReversingShuttle
Convenientlyplaced,handoperatedleverprovidesinstantdirectionchangesfromforwardtoreverse withpowerhydraulicclutches.
Copyright1993-2024CaterpillarInc. AllRightsReserved. PrivateNetworkForSISLicensees.
SunApr702:22:03UTC+05302024
Product:BACKHOELOADER
Model:446BACKHOELOADER6XF
Configuration:446BACKHOELOADER6XF00001-UP(MACHINE)POWEREDBY3114ENGINE
OperationandMaintenanceManual
446BACKHOELOADER
MediaNumber-SEBU6262-01PublicationDate-01/01/1990DateUpdated-11/10/2001
TowingInformation
SMCS-1264-015
Personalinjuryordeathcouldresultwhentowingadisabledmachine incorrectly.
Blockthemachinetopreventmovementbeforereleasingthebrakes. Themachinecanrollfreeifitisnotblocked.
Besureallnecessaryrepairsandadjustmentshavebeenmadebeforea machinethathasbeentowedtoaservicearea,isputbackinto operation.
Followtherecommendationsbelow,toproperlyperformthetowing procedure.
NOTICE
Damagecanbecausedtothetransmissionifthemachineismovedwith theenginenotrunning.Therewillbenolubricationtothe transmissioncomponents.Disconnectandremovetheuniversaljoint beforethemachineismoved.
Thismachineisequippedwithmechanicallyappliedwetdiscbrakes.
Thesetowinginstructionsareformovingadisabledmachineashortdistance,atlowspeed,nofaster than2km/h(1.2mph)toaconvenientlocationforrepair.Theseinstructionsareforemergencies only.Alwayshaulthemachineiflongdistancemovingisrequired.
Shieldingmustbeprovidedonthetowingmachine,toprotecttheoperatorifthetowlineorbar shouldbreak.
Donotallowridersonthemachinebeingtowed.
TheoperatoronthetowedmachineMUSTsteerinthedirectionofthetowline.
Makesurethetowlineorbarisingoodconditionandhasenoughstrengthforthetowingsituation involved.Useatowinglineorbarwithastrengthofatleast1.5timesthegrossweightofthetowing machine.
Keepthetowlineangletoaminimum.Donotexceeda30°anglefromthestraightaheadposition.
Quickmachinemovementcouldoverloadthetowlineorbarandcauseittobreak.Gradualand smoothmachinemovementwillworkbetter.
Normally,thetowingmachineshouldbeaslargeasthedisabledmachine.Satisfyyourselfthatthe towingmachinehasenoughbrakecapacity,weightandpower,tocontrolbothmachinesforthegrade anddistanceinvolved.
Toprovidesufficientcontrolandbrakingwhenmovingadisablemachinedownhill,alargertowing machineoradditionalmachinesconnectedtotherearcouldberequired.Thiswillpreventitfrom rollinguncontrolled.
Thedifferentsituationrequirementscannotbegiven,asminimaltowingmachinecapacityisrequired onsmoothlevelsurfacestomaximumoninclinesorpoorsurfaceconditions.
Attachtowingdeviceandmachinebeforereleasingthebrakes.Disengagethefrontwheeldriveif equipped.
ConsultyourCaterpillardealerfortowingadisabledmachine.
EngineRunning
Ifthepowertrainandthesteeringsystemareoperable,andtheengineisrunning,themachinecanbe towedaSHORTDISTANCE,pulledoutofmudortothesideoftheroad.
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