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MAINTENANCE
FILTER SERVICE
High Pressure Filters "HPF", illustration Z24076
NOTICE
Carefully inspect elements for damage. Always install new
elements if ruptures or other damages are found.
5. Remove element (10) and clean. Take care not to contami-
nate the "Clean" inside of the element when flushing.
6. Inspect O-rings (12 and 14) and back-up ring (13). Replace if
necessary.
7. Install drain plug (7) with new packing ring (11). Fill filter case
(8) half way up with clean hydraulic oil and re-assemble the
filter. Make sure element (10) is properly seated in the filter
head.
8. After short operating period check filter units for leakage.
In case filter element (10) is soiled by metal chips, examine
hydraulic pump for damages. Install new element (10).
NOTICE
If after cleaning of the filter element, the message
"High pressure filter restricted" is displayed again, replace
the filter element.
Replace elements (10) after three cleanings or after every
5000 operating hours, whichever occurs first.
After pump repairs all high pressure filter elements must be
replaced.
CAUTION
4.12 EVERY 1000 OPERATING HOURS OR EVERY 6 MONTH
385
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