Impeller. Check/change
WARNING! Risk of water entry. Close the raw-
water cock before doing any work on the rawwa-
ter system.
1. Remove the rawwater pump lid, and pull the im-
peller out with water pump pliers.
2. Check the impeller. If any cracks or other defects
are visible, the impeller must be changed.
3. Lubricate the pump housing and the inside of the
lid with water-resistant grease (which is not ag-
gressive to rubber). The impeller will be easier to
work with if it is put in hot water prior to fi tting.
4. Press the impeller in with a circular motion (coun-
ter clockwise). The shaft of the pump has an
internal thread (M8). Screw a stud into the end of
the shaft and press the impeller in using a was-
her and nut. Fit the cover, using a new O-ring.
5. Open the rawwater cock.
IMPORTANT! Always carry a spare impeller on
board.
Raw water strainer. Inspection/cleaning
The raw water strainer is optional equipment.
If the water where the boat is operated contains a
lot of contamination, weed etc., check the fi lter more
frequently than specifi ed in the maintenance sche-
dule. There is otherwise a risk that the fi lter would be
blocked, which would make the engine overheat.
WARNING! Risk of water entry. Close the raw-
water cock before doing any work on the rawwa-
ter system.
1. Close the rawwater cock.
2. Remove the lid (1) and lift up the insert.
3. Clean the insert and the housing (2).
4. Install the components as in the illustration.
Check the O-ring. Change as necessary.
5. Open the rawwater cock and check carefully that
no leakage occurs.
75
Maintenance: Raw water system
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