Operator`s manual

Sea Water Pump
The sea water pump is a self-priming, gear-driven rotary pump with a non-ferrous housing and a neoprene
impeller. The impeller has flexible vanes which wipe against a curved cam plate within the impeller housing,
producing the pumping action.
On no account should this pump be run dry. There should always be a spare
impeller and impeller cover gasket on board (an impeller kit).
Alternator (DC) and Water Pump Drive Belt Tension
Never attempt to adjust the drive belt's tension while the engine is in operation.
CAUTION
Excessive alternator and water pump drive belt tension can cause rapid wear of the belt and
reduce the service
life of the fresh water pump and alternator shaft bearings. Excessive slack
or the presence of oil on the belt can cause belt slipping, resulting in high operating tempera-
tures, as
we" as insufficient alternator output.
The alternator and water
pump drive belt is properly adjusted if the belt can be deflected no less than 3/8
inch and
no more than 1/2 inch (10 mm, 12 mm) as the belt is depressed with the thumb at the midpoint be-
tween the
two pulleys on the longest span of the belt. (See figure below.) A spare drive belt should be car-
ried on board.
Alternator and Water Pump Belt Tension
28