7-MAINTENANCE
Hydrauliccylinders-check
Thehydrauliccylindersmustnotshowanykindofleaks.
Thecylinderrodsmusthaveaslightlyoilyaspectinorder
toguaranteealonglifeandagoodoperation.
CYLINDERTIGHTNESS
Atightnesscheckmustbeperformedafteracertainwork-
ingperiodandwhenthehydraulicsystemisatnormalop-
eratingtemperature.
Checkbyperformingthefollowingoperations:
-cleantherodandthebearingofthecylindertobein-
spected;
-worknormallyfor5to10minutes;
-extendthecylinderrod;
-checkforleaks.
CYLINDERRODASPECT
RODAPPEARANCETESTCONCLUSION
Dry
Slighttracesofoilwhenasheetofpaperis
rubbedon200mm(7.87in)oftherod.
Normal
Slightlyoily
Thepapersheetremainsstuckwhenrubbed
ontherod.
Normal
Oily
Asheetofpaperplacedontherodremains
stuck.
Normal
Veryoilyorweeping
Aringofoilisclearlyvisibleontherodafter
eachrodextension.
Leak
Oildripsfromthebearingeachtimethe
cylinderrodisretracted.
ConsultyourDealer
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