MAINTENANCE/ADJUSTMENTS
CHECKING FOR CYLINDER LEAKAGE Template Name: OM_1_col Template Date: 1994_04_29
A cylinder rod should be slightly oily. Check for leaks after a period of work, when the entire hydraulic system is at normal working temperature. 1.
Wipe the rod and the bearing on the cylinder to be checked.
2.
Operate normally for five to ten minutes.
3.
Extend the cylinder rod.
4.
Check for leaks.
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ROD APPEARANCE
TEST
CONCLUSION
Dry
Slight traces of oil when a piece of paper is wiped over 20 cm of the rod.
Normal
Slightly oily
Paper remains stuck to the rod when wiped over the rod.
Normal
Oily
Paper remains stuck when placed on the rod.
Normal
Very oily or weeping
Each time the cylinder rod is extended, a ring of oil can be seen on the rod.
Leakage
Each time the cylinder rod retracts, excess oil drips from the bearing.
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