Nanni N2.10 Notice Et Mode D'emploi page 52

Cleaning the raw water
filter
A raw water filter must be fitted
between the raw water intake and
the raw water pump of the engine.
The model of prefilter can vary
according the boat as the raw water
filter is an optional extra not in the
scope of supply of the engine.
These instructions are given as an
example only.
Check the raw water filter more
regularly than indicated in the ser-
vice schedule if the boat is used in
water with lot of dirt and/or mud.
To clean the filter:
1. Stop the engine, remove the
key from the panel and close the
sea cock.
2. Check the condition of the raw
water filter. If deposits have for-
med, screw off cover and remove
seal plate.
3. Remove all the contaminants.
Rinse the filter and the housing
with fresh water and check the
condition of the seal.
4. Reinstall all the components
and open the sea cock. Start the
engine and check for leaks.
NOTICE: When the boat is out of
water, check that the through-hull is
not obstructed by mud or algae.
49
Raw water system -
Draining
I WARNING
It is highly recommended to
carry out these operations when
the boat is laid up on land. If the
boat cannot be removed from
the water, close the sea cock
and prevent water entry by any
means.
1. Stop the engine, remove the
key from the panel and close the
sea cock.
2. Remove the cover of the raw
water pump.
3. Remove the cover and the seal
from the raw water filter.
4. If a siphon breaker is fitted,
drain it following the manufacturer
recommendations.
5. Drain the cooling system of the
transmission lubrication circuit (if
fitted).
6. Drain the waterlock and any
other equipment connected to the
raw water and exhaust system.
7. Reinstall correctly all compo-
nents. Open the sea cock and
check for leaks. Prime the raw
water system by adding water
through the raw water filter if
necessary.