Brunswick 750 IMPACT, Operation & Maintenance Manual

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Boat Maintenance Section 6
Bilge Pump
The bilge pump and float switch are sealed units and
do not require any periodic maintenance. Check the
bilge area weekly to make sure there is no debris or
sludge that could foul the float switch or clog the
pump.
Periodically check the condition of the bilge pump by
turning the pump on manually. You should see it
pump water out the through-hull fitting if there is water
in the bilge, or hear the pump motor 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 pump and float switch before
each mission. Manually activate the float
switch when the rocker switch is in the AUTO
position and verify pump operation. Clear away
any debris that might restrict the pump or float
switch.