48
|
NAVIGATOR OPERATING MANUAL
NW Explorations
4S: Sea Strainers & Through-Hulls
4S1: Sea Strainer Cleaning
and Seacocks
The sea strainers on this boat are secure and
reliable. They protect the engine, generator and
refrigeration cooling systems from water-borne
debris which might block internal equipment
passages.
If a sea strainer needs cleaning (see above
regarding inspection) here is the procedure:
1. Follow the hose from the strainer to the
valve at the hull. On one side of the valve
will be a handle.
2. Turn the valve lever so it is perpendicular
to the thru-hull or hose (parallel to the hull).
3. Unscrew the top of the sea strainer using the
same spanner you use
4. for the fuel caps. Then remove the strainer by pulling it out the top of
the assembly. Rinse the strainer thoroughly and, if necessary, remove
any debris from the glass housing.
5. Reinsert the strainer, tighten the top cover and turn the valve back on
(in line with the thru-hull itself or its hose).
Failure to re-open the valves will overheat the engine or damage
the pumps!
The entire operation will take 5-10 minutes at most, and will assure you of
cool engines.
4T: Warning Lights & Alarms,
Wipers & Washers
See the Safety Panel page 47.
4T1: Windshield Wiper/Washer Control Panel
There are also controls here for the windshield wipers; pushing the knob
activates the washers.
Forward bilge has starting battery and under grate,
sea strainers for both engines.
The generator sea strainer in
Navigator is just forward
of the generator.