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MAINTENANCE
FILTER SERVICE
High Pressure Filters "HPF", illustration Z 21780
NOTICE
The filter reference numbers (1 - 6) correspond to the
numbering of the main pumps.
If, for example, the fault message "High pressure filter #5
restricted" is being displayed on the ECS screen, the fil-
ter number (5) in the illustration has to be serviced. The
engine will be shifted automatically to low idle speed.
Stop work and inform Service staff about the fault mes-
sage.
Legend for illustration Z 21780
(1)
HPF for pump 1
(2)
HPF for pump 2
(3)
HPF for pump 3
(4)
HPF for pump 4
(5)
HPF for pump 5
(6)
HPF for pump 6
(7)
Drain plug
(8)
Filter case
(9)
Hexagon
(10)
Filter element
(11)
Packing ring
(12)
O-ring
(13)
Back-up ring
(14)
O-ring
(15)
Filter header
Clean or replace high pressure filter elements:
1. Place working attachment on the ground and shut-off the
engines.
Relieve pressure in the hydraulic system with several move-
ments of the control levers.
2. Place a suitable container below the filter in order to collect
outflowing oil.
3. Remove plug (7) and drain the oil.
4. Screw off filter case (8).
4.12 EVERY 1000 OPERATING HOURS OR EVERY 6 MONTH
445
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