Specifications

20 CHAPTER 2: FEATURES / SYSTEMS
3488 Motoryacht • Owner’s Manual Supplement
Bilge Pump Systems
Your yacht is equipped with six impeller-type bilge pumps which are used to pump water out of the bilge. Bilge
pumps are controlled by automatic bilge pump float switches (autofloat switches) and/or switches on the dash panel.
Bilge Pump Testing
Bilge pumps are critical to the safety of your boat.
Check the bilge pumps often to make sure that they
are working properly. Test each pump individually.
To test each bilge pump:
1. Turn on the manual switches at the helm.
2. Make sure that water in the bilge is pumped over-
board.
If there is water in the bilge and the pump motor is
running but not pumping:
1. Inspect the discharge hose for a kink or collapsed
area.
2. Check the bilge pump housing for clogging
debris as follows:
To check for clogging debris in pumps:
1. With your thumb and forefinger squeeze the
holding tabs on each side of the power cartridge.
2. Lift out the power cartridge.
3. Check the pump and the housing and clear any
debris.
Reinstall the power cartridge:
1. Align the tabs and slots and press firmly until the
tabs click into place.
2. Make sure that the power cartridge is locked
into place.
Autofloat Switches
Automatic bilge pumps use an electromagnetic float (auto-
float) switch to automatically activate the pump whenever
water accumulates above a preset level in the bilge. An
autofloat switch is normally mounted next to the bilge
pump it activates. Autofloat switches should be tested
often for proper operation as follows.
To test a float switch:
1. Lift the float up by turning either white plastic knobs
1/4 turn. As the float is lifted, the bilge pump should
turn on. If lifting the float does not turn the pump on,
check the circuit. Some models are equipped with in-
line fuses near the battery and other have circuit
breakers on the DC panel. If the fuse is good or the
circuit breaker set, but the switch does not work, it
may indicate a bad switch or possibly a low battery.
2. Release the knob to lower the float and return the float
switch to auto mode.
SLOT (TYPICAL
EACH SIDE)
TABS
TA B
AUTOFLOAT
KNOBS
SWITCH