Case 695ST - Hydraulic Cylinders

7-MAINTENANCE
Hydrauliccylinders
Thehydrauliccylindersmustnotshowanykindof
leaks.
Thecylinderrodsmusthaveaslightlyoilyaspectin
ordertoguaranteealonglifeandagoodoperation.
Cylindertightness
Atightnesscheckmustbeperformedafteracertain
workingperiodandwhenthehydraulicsystemisatnor-
maloperatingtemperature.
Checkbyperformingthefollowingoperations:
1.Cleantherodandthebearingofthecylindertobe
inspected.
2.Worknormallyfor5to10minutes.
3.Extendthecylinderrod.
4.Checkforleaks.
Cylinderrodinspection
RODAPPEARANCETESTCONCLUSION
Dry
Slighttracesofoilwhenasheetofpaperis
rubbedon200mm(7.87in)oftherod.
Normal
Slightlyoily
Thepapersheetremainsstuckwhenrubbed
ontherod.
Normal
Oily
Asheetofpaperplacedontherodremains
stuck.
Normal
Veryoilyorweeping
Aringofoilisclearlyvisibleontherodafter
eachrodextension.
Leak
Oildripsfromthebearingeachtimethe
cylinderrodisretracted.
ConsultyourDealer
7-94