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Maintenance. Freshwater system
1
Freshwater system. Flushing
The cooling system should be flushed when the cool-
ant is changed, to avoid loss of cooling performance
due to deposits in the cooling system.
1. Drain the coolant, as in the description on the
previous page.
2. Put a hose into the filling hole in the heat ex-
changer and flush with fresh water.
3. Flush until the water which runs out of the drain
points is clean.
4. Close all drain points when all coolant has run
out.
5. Fill up with coolant, as in the description on the
previous page.
Coolant filter. Change
IMPORTANT! Do not change the filter when the
coolant is changed. The concentration of rust-
preventer in the coolant can become too high,
which would cause foaming and impaired cool-
ing.
WARNING! Hot coolant and hot surfaces can
cause burns.
1. Clean the filter bracket.
2. Close the filter tap (1), (position A).
3. Unscrew the filter with a suitable extractor.
4. Clean the filter mating surface on the filter bracket.
5. Moisten the seals on the new filter with engine oil
and screw the filter on by hand until the rubber
seal just touches the mating surface on the filter
bracket Then tighten a further 1/2 turn.
6. Open the filter tap (1), (position B).
7. Start the engine and check carefully that no leak-
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