Case CX490D - Pilot Line Filter

6-MAINTENANCE
Pilotlinelter
WARNING
Burnhazard!
Beforeperforminganyserviceonthehydraulicsystem,youmustallowittocool.Hydraulicuid
temperatureshouldnotexceed40°C(104°F).
Failuretocomplycouldresultindeathorseriousinjury.
W0241A
WARNING
Pressurizedsystem!
Neverattempttodrainuidsorremovelterswhentheengineisrunning.Turnofftheengineand
relieveallpressurefrompressurizedsystemsbeforeservicingthemachine.
Failuretocomplycouldresultindeathorseriousinjury.
W0905A
Replacethepilotlinelterevery2000h(After250hofoperationinrun-inperiod).
NOTICE:Theaccumulatorofthepilotcircuitcontainshighpressuregas.Donotperformweldingandavoidany
operationgeneratingsparksandhightemperatureclosetotheaccumulator.
NOTICE:Whenthemachineisanewvehicle,orwhenthemaincomponentsofthehydraulicsystemarealreadyover-
hauledorreplaced,replacethepilotlterafter250hofoperation.Afterthat,replacethelteratspeciedintervals.
NOTICE:Ifanyattachmentotherthanabucketisused,reducetheintervalofthepilotlinelterreplacement.Refer
toChapter9.
1.Releaseallthepressureinthehydraulictank.Referto
page6-10.
2.Opentheright-handdoor.
3.Unscrewandremovethelterusingawrench.
4.Coatthesealofthenewlterwithanelmofclean
oil.
5.Installthenewlter.
Turnthelteruntilthesealcomesintocontactwiththe
lterheadthentightenbyanextrathirdofaturnby
hand.
SMIL19CEX0590AA1
6-61