PURSUIT OS 335, Owner'S Manual

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OS 335
51
5.2 Raw Water Washdown
In the raw or sea water systems, all water pumps are supplied by hoses connected to ball valves and thru-hull
fittings located in the bilge. Always make sure the ball valves are open before attempting to operate any
component of the raw water system.
OPERATION
A high pressure pump, controlled by a pressure sensor, supplies the raw water hose connector located in the
cockpit. The pump is activated by the washdown switch located under the gunwale on the side of the cockpit
on the starboard side. This switch should be turned to the “ON” position just before using the washdown and
be turned to the “OFF” position when the washdown is not in use.
When activated, the pressure switch will automatically control the pump. As the
pressure builds in the washdown hose, the pump will shut off. When the washdown
hose is in use and the pressure drops, the pump will turn on.
The raw water washdown system is equipped with a sea strainer on the intake side
of the pump located aft bilge port side. This should be checked frequently and
cleaned as necessary.
PRIMING THE SYSTEM
Make sure the ball valves are open. Open the hose connector for the raw water
washdown and activate the pressure pump by turning the washdown pump switch
to the “ON” position. Run the pump until all of the air is purged from the system
and then turn the switch to the "OFF" position. Closing the thru-hull ball valves
before the boat is hauled from the water will help to eliminate air locks in raw water
systems.
It may be necessary to reprime the raw water system if the system is not used for an extended period and at
the time of launching.
ALWAYS TURN THE RAW WATER PUMP SWITCH TO THE “OFF” POSITION WHEN
LEAVING THE BOAT UNATTENDED.
DO NOT RUN THE HIGH PRESSURE PUMP DRY FOR EXTENDED PERIODS AS DAMAGE
TO THE PUMP WILL RESULT.
Washdown Hose
Connector (Typical)