Komatsu PC118MR-8, Operation And Maintenance Manual

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MAINTENANCE
MAINTENANCE PLAN
4-23
MAINTENANCE INTERVALS IN CASE OF USE OF THE HYDRAULIC
BREAKER
4
The hydraulic oil used in the machines provided with hydraulic breaker deteriorates more quickly than the oil used
in normal digging machines, therefore it is advisable to respect the following maintenance plan.
CHANGING THE HYDRAULIC OIL FILTER
In new machines, change the filter after the first 100–150 hours
of operation and for the successive changes keep to the
indications given in the table on the right.
If the machine contains synthetic biodegradable oil type HEES,
the filter must be changed after the first 50 hours of operation.
(A): Hydraulic fluid filter - replacement interval.
(X): Hydraulic breaker - use percentage (%).
(Y): Change interval (H)
CHANGING THE HYDRAULIC OIL
Change the hydraulic oil in the tank according to the intervals
indicated in the table on the right.
On machines containing synthetic biodegradable oil type
HEES, change the oil after the first 500 hours of operation and
for the successive changes keep to the indications given in the
table on the right.
(B): Hydraulic oil replacement interval
(C): Biodegradable hydraulic fluid - change interval.
(X): Hydraulic breaker - use percentage (%).
(Y): Change interval (H)
WEAM014802