MAINTENANCE
WB140-2N, WB150-2N 3-65
MAINTENANCE INTERVALS IN CASE OF DEMOLITION HAMMER
USE
Hydraulic oil used in the machines provided with demolition hammer deteriorates more quickly than oil used in normal dig-
ging machines, therefore it is advisable to consult the following maintenance plan.
CHANGING HYDRAULIC OIL FILTER
For new machines, change the filter after the first 100 and 150 hours of
operation and for successive changes, adhere to the schedule provided
on table to the right.
If the machine contains synthetic biodegradable oil type HEES, the fil-
ter must be changed after the first 50 hours of operation.
CHANGING HYDRAULIC OIL
Change hydraulic oil in the tank according to intervals shown on table to
the right.
On machines containing synthetic biodegradable oil type HEES, change
oil after the first 500 hours of operation, and for successive changes,
adhere to the schedule provided on table to the right.
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