Case CX490D - Hydraulic Oil Return Filter

6-MAINTENANCE
Hydraulicoilreturnlter
WARNING
Burnhazard!
Beforeperforminganyserviceonthehydraulicsystem,youmustallowittocool.Hydraulicuid
temperatureshouldnotexceed40°C(104°F).
Failuretocomplycouldresultindeathorseriousinjury.
W0241A
WARNING
Pressurizedsystem!
Neverattempttodrainuidsorremovelterswhentheengineisrunning.Turnofftheengineand
relieveallpressurefrompressurizedsystemsbeforeservicingthemachine.
Failuretocomplycouldresultindeathorseriousinjury.
W0905A
Replacethehydraulicoilreturnlterevery2000h(After250hofoperationinrun-inperiod).
NOTICE:Whenthemachineisanewvehicle,orwhenthemaincomponentsofthehydraulicsystemarealready
overhauledorreplaced,replacetheoilreturnlterafter250hofoperation.Afterthat,replacethelteratspecied
intervals.
NOTICE:Ifanyattachmentotherthanabucketisused,reducetheintervalofthehydraulicoilreturnlterreplacement.
RefertoChapter9.
1.Releaseallthepressureinthehydraulictank.Referto
page6-10.
2.Cleanthetopofthehydraulictank,andcleanthecover
ofthereturnlter.
3.Removethecover(1)andtheO-ring(2).
4.T akeoutthespring(3),thevalve(4),andthelter(5).
5.Attachanewlter(5).
Cleanandattachthespring(3)andthevalve(4).
6.ReplacetheO-ring(2).
7.Attachthecover(1).
8.Checkthehydraulicuidlevel,andsupplyitifneces-
sary.
SMIL15CEXY544BB1
6-60