Case 2050M - Replace Hydraulic Oil Filters (Initial)

7-MAINTENANCE
Replacehydraulicoillters(Initial)
WARNING
Pressurizedhydraulicuidcanpenetratetheskinandcausesevereinjuries.
Hydraulicuidisunderextremepressure.Restthebucketorattachmentontheground.Shutthe
engineoff,turnthekeyon,andmovethehydrauliccontrolleverthroughallmovementsseveraltimes
torelieveresidualpressureinthesystem.
Failuretocomplycouldresultindeathorseriousinjury.
W0161A
WARNING
Pressurizeduidcanpenetratetheskinandcausesevereinjuries.
Keephandsandbodyawayfromanypressurizedleak.DONOTuseyourhandtocheckforleaks.Use
apieceofcardboardorpaper.Ifuidpenetratestheskin,seekmedicalattentionimmediately.
Failuretocomplycouldresultindeathorseriousinjury.
W0158A
Replacethehydraulicoillterwhenthehourmeterregisters100hoursforanewmachineduringtheinitialrun-in
period.Theltershouldbechangedevery2000hoursthereafterormorefrequentlywhenoperatingconditionsare
severe.
Prioroperation:
Keepallunauthorizedpersonnelclearofthearea.Parkthemachineonlevelground,inneutralwiththeparking
brakeapplied,andtheattachmentloweredtotheground.Makesurethatallresidualpressureisrelievedfromcircuits
beforebeginningmaintenance.Installthetransportservicelinktopreventunexpectedarticulation.
1.Thehydraulicoilllercapislocatedontherearofthe
machine.
2.Stoptheengine.PutaDoNotOperatetagonthekey
switch.
3.Makesuretheaccumulatorsonthemachinearecom-
pletelydischarged.
4.Cleantheareaaroundthehydraulicoilllercap,and
slowlyloosenthecaptoreleaseanyremainingpres-
sure.
RAPH12DOZ128AA1
5.Removeandreplacethehydraulicoillter(1).Turnthe
ltercounterclockwisetoremove.
6.Cleanthecontactsurfaceonthelterhead.Makesure
thatalldirtandgasketmaterialhasbeenremoved.
7.Applyathincoatofcleanoiltothehydraulicoilgasket
andthreads.
8.Installandtightenthenewltercartridgermlytothe
lterheadbyhand.Donotusealterwrenchtotighten
thelter.
RAIL13DOZ1699AA2
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