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Maintenance: Lubrication system
Filters and by-pass filter change
Change the oil filter (2) and by-pass filter (1) every oil
change.
1. Stop the engine.
2. Put a suitable vessel underneath the filters to av-
oid oil spill. Clean the filter bracket.
3. Unscrew the bypass filter (1) and the oil filters (2)
with a suitable filter wrench.
4. Lightly oil the rubber seal of the new filters and
make sure its mating surfaces on the filter brack-
ets are clean.
5. Mount the new filter by hand until the gasket is in
contact with the sealing surface. Then tighten the
filter another 1/2 to 3/4 turn.
6. Start the engine (idle) and make sure that no lea-
kages occur. Check the oil level once the engine
has stopped.
NOTE! Process the discarded oil filters in accordance
with local regulations.
Switchable oil filters
IMPORTANT! Though possible, the switchable
filters should not be replaced during engine ope-
ration other than in case of an emergency
1. Clean the filter bracket.
2. Disconnect the left filter by turning the lever to the
right-hand end position. To unlock the lever, pull
the knob beneath the lever downwards.
3. Unscrew the left-hand oil filter and discard it. Use
a filter wrench if necessary.
4. Check that the mating surfaces on the filter brack-
et are clean, and that no traces of the seal from
the old filter remain.
5. Oil the rubber seal for the new filter.
6. Screw the filter on by hand until the rubber seal
just touches the mating surface of the filter brack-
et. Then tighten the filter a further 3/4 of a turn.
7. Turn the lever to the left-hand end position and
change the right-hand oil filter in the same way.
8. Put the lever in operating position (straight up).
9. If necessary, top up the system with lubrication oil
at first stop. Refer to section “Lubrication oil
change”.
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