Boston Whaler 25 Guardian Series, Operation & Maintenance Manual

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Boat Maintenance Section 6
Bilge Pump System
The bilge pumps and water level sensors are sealed
units and do not require any periodic maintenance.
Check the bilge area weekly to make sure there is no
sludge or debris that could foul the water level sensors
or clog the pumps.
Periodically check the condition of the bilge pumps by
turning the pumps on manually. You should see them
pump water out the through-hull fittings if there is
water in the bilge, or hear the pump motors running.
Trim Tabs
Periodically check the condition of the trim tab actua-
tors. The actuators are completely sealed and require
no maintenance. However, marine growth should be
removed from the actuator shafts by pressure wash-
ing.
Cold temperatures do not affect the trim tab system.
No winterization procedure is necessary.
In saltwater, to control galvanic corrosion, a zinc
anode should be attached to the
top of each trim tab.
The anode must be in clean, direct contact with the
stainless steel trim plane. Do not ground the trim tabs
to other underwater metal objects.
Erosion of the anode material is a natural result of its
protective responsibility.
Replace the anodes when
they have eroded to one-half their original size.
Refer to the Lenco operator’s manual for detailed
information about system operation and maintenance.
!
CAUTION
Test your bilge pumps and water level sensors
before each mission. Manually activate the
water level sensor when the rocker switch is in
the AUTO position and verify pump operation.
Clear away any sludge or debris that might
restrict the pumps or water level sensors.