Case CX145C SR - Page 237

6-MAINTENANCE
Replacingthehydraulicltersanduidwhenahydraulicbreakerisused(optional)
Whenusingthehydraulicbreaker,hydraulicuiddeterioratesmorequicklythanduringordinarydigging.Checkthe
hydraulicuidlevelmorefrequently.Inaddition,whenchangingthelters,alsochecktheconditionofthehydraulic
uid.
Usingthefollowinggraphasareference,determinetheintervalsforchangingthehydraulicuidandlters,depending
onthefrequencyofuseofthehydraulicbreaker.
Percentageofuse
100%40%20%10%
Intervalinhours1010060010300150010600300108004000
Servicepoints
Hydraulicuid(1)(3)(1)(3)(1)(3)(1)(3)
Returncircuitlter
(3)(3)(3)(3)
Inletlter
(2)(3)(2)(3)(2)(3)(2)(3)
Pilotlter
(3)(3)(3)(3)
Hydraulicuidcondition
200H300H600H800H
(1)Checkthelevel
(2)Cleanorreplace
(3)Replace
Checkingthehydraulicsystempiping
Makesuretherearenoleaksfromthehydraulicsystemhoses,pipes,plugs,connectionsandttingsandcheckthat
allnutsandscrewsarecorrectlytightened.Intheeventofproblems,repair,changeortightenthecomponent(s)
concerned.
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