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SAFETY SAFETYNOTICE
IMPORTANTSAFETYNOTICE
Properserviceandrepairisextremelyimportantforsafemachineoperation.Theserviceand repairtechniquesrecommendedbyKomatsuanddescribedinthismanualarebotheffective andsafe.SomeofthesetechniquesrequiretheuseoftoolsspeciallydesignedbyKomatsufor thespecificpurpose.
Topreventinjurytoworkers,thesymbolkisusedtomarksafetyprecautionsinthismanual. Thecautionsaccompanyingthesesymbolsshouldalwaysbefollowedcarefully.Ifanydangeroussituationarisesormaypossiblyarise,firstconsidersafety,andtakethenecessaryactions todealwiththesituation.
GENERALPRECAUTIONS
Mistakesinoperationareextremelydangerous. ReadtheOperationandMaintenanceManualcarefullyBEFOREoperatingthemachine.
1.Beforecarryingoutanygreasingorrepairs,read alltheprecautionsgivenonthedecalswhichare fixedtothemachine.
2.Whencarryingoutanyoperation,always wearsafetyshoesandhelmet.Donotwear looseworkclothes,orclotheswithbuttons missing.
Alwayswearsafetyglasseswhenhitting partswithahammer.
Alwayswearsafetyglasseswhengrinding partswithagrinder,etc.
3.Ifweldingrepairsareneeded,alwayshavea trained,experiencedweldercarryoutthework. Whencarryingoutweldingwork,alwayswear weldinggloves,apron,handshield,capand otherclothessuitedforweldingwork.
4.Whencarryingoutanyoperationwithtwoor moreworkers,alwaysagreeontheoperating procedurebeforestarting.Alwaysinformyour fellowworkersbeforestartinganystepofthe operation.Beforestartingwork,hangUNDER REPAIRsignsonthecontrolsintheoperator's compartment.
5.Keepalltoolsingoodconditionandlearnthe correctwaytousethem.
6.Decideaplaceintherepairworkshoptokeep toolsandremovedparts.Alwayskeepthetools andpartsintheircorrectplaces.Alwayskeep theworkareacleanandmakesurethatthereis nodirtoroilonthefloor.Smokeonlyintheareas providedforsmoking.Neversmokewhileworking.
PREPARATIONSFORWORK
7.Beforeaddingoilormakinganyrepairs,parkthe machineonhard,levelground,andblockthe wheelsortrackstopreventthemachinefrom moving.
8.Beforestartingwork,lowerblade,ripper,bucket oranyotherworkequipmenttotheground.If thisisnotpossible,insertthesafetypinoruse blockstopreventtheworkequipmentfromfalling.Inaddition,besuretolockallthecontrol leversandhangwarningsignsonthem.
9.Whendisassemblingorassembling,supportthe machinewithblocks,jacksorstandsbefore startingwork.
10.Removeallmudandoilfromthestepsorother placesusedtogetonandoffthemachine. Alwaysusethehandrails,laddersorstepswhen gettingonoroffthemachine.Neverjumponor offthemachine.Ifitisimpossibletousethe handrails,laddersorsteps,useastandtoprovidesafefooting.
PRECAUTIONSDURINGWORK
11.Whenremovingtheoilfillercap,drainplugor hydraulicpressuremeasuringplugs,loosen themslowlytopreventtheoilfromspurtingout. Beforedisconnectingorremovingcomponents oftheoil,wateroraircircuits,firstremovethe pressurecompletelyfromthecircuit.
12.Thewaterandoilinthecircuitsarehotwhenthe engineisstopped,sobecarefulnottoget burned.
Waitfortheoilandwatertocoolbeforecarryingoutanyworkontheoilorwatercircuits.
13.Beforestartingwork,removetheleadsfromthe battery.Alwaysremovetheleadfromthenegative()terminalfirst.
14.Whenraisingheavycomponents,useahoistor crane.
Checkthatthewirerope,chainsandhooksare freefromdamage. Alwaysuseliftingequipmentwhichhasample capacity.
Installtheliftingequipmentatthecorrectplaces. Useahoistorcraneandoperateslowlytopreventthecomponentfromhittinganyotherpart. Donotworkwithanypartstillraisedbythehoist orcrane.
15.Whenremovingcoverswhichareunderinternal pressureorunderpressurefromaspring, alwaysleavetwoboltsinpositiononopposite sides.Slowlyreleasethepressure,thenslowly loosentheboltstoremove.
16.Whenremovingcomponents,becarefulnotto breakordamagethewiring.Damagedwiring maycauseelectricalfires.
17.Whenremovingpiping,stopthefueloroilfrom spillingout.Ifanyfueloroildripsontothefloor, wipeitupimmediately.Fueloroilonthefloor cancauseyoutoslip,orcanevenstartfires.
18.Asageneralrule,donotusegasolinetowash parts.Inparticular,useonlytheminimumof gasolinewhenwashingelectricalparts.
19.Besuretoassembleallpartsagainintheiroriginalplaces.
Replaceanydamagedpartswithnewparts. Wheninstallinghosesandwires,besure thattheywillnotbedamagedbycontact withotherpartswhenthemachineisbeing operated.
20.Wheninstallinghighpressurehoses,makesure thattheyarenottwisted.Damagedtubesare dangerous,sobeextremelycarefulwheninstallingtubesforhighpressurecircuits.Also,check thatconnectingpartsarecorrectlyinstalled.
21.Whenassemblingorinstallingparts,alwaysuse thespecifiedtighteningtorques.Wheninstalling protectivepartssuchasguards,orpartswhich vibrateviolentlyorrotateathighspeed,beparticularlycarefultocheckthattheyareinstalled correctly.
22.Whenaligningtwoholes,neverinsertyourfingersorhand.Becarefulnottogetyourfingers caughtinahole.
23.Whenmeasuringhydraulicpressure,checkthat themeasuringtooliscorrectlyassembledbefore takinganymeasurements.
24.Takecarewhenremovingorinstallingthetracks oftrack-typemachines. Whenremovingthetrack,thetrackseparates suddenly,soneverletanyonestandateither endofthetrack.