Maintenance and care
31
Parallel fuel filter with interchangeable
filter
The fuel flows through two parallel filters.
3
3
2
1
4
1 Filter cartridge
2 Screw plug
3 Bleed screw
4 Moisture drain plugs
Draining moisture:
Unscrew drain plugs at every oil change
until moisture has been discharged and
clean fuel flows out.
Replacement of filter elements:
After every 1000 hours of operation – or
earlier if loss of engine power indicates
clogging – the filter elements should be
renewed.
Caution:
Used fuel filters are classed as dan-
gerous waste and must be disposed of
accordingly.
Change-over fuel filter with filter car-
tridges
(replaced by change-over fuel filter with
interchangeable filter)
Where the changeover-type filter is in-
stalled, the servicing procedure is for the
filter side requiring to be shut off with the
engine running. During continuous oper-
ation, the selector lever should be placed
in a position where both filter halves are in
operation.
4
6
10
12
9
8
1
11
2
5
3
7
1 Changeover type filter
2 Collecting vessel
3 Cover for collecting vessel
4 O-ring
5 Gasket
6 Fixing bolts for collecting vessel
7 Screw nut
8 Filler plug
9 Vent plug
10 Fixing nut
11 Sludge drain plug
(socket head width across flats 5)
12 Selector lever
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