Chaparral 420 PREMIERE, Owner'S/Operator'S Manual

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BILGE
Fuel and Oil Spillage
Regulations prohibit the discharge of oil or oily
waste into or upon navigable waters if such dis-
charge causes a film or sheen upon, or discoloration
of, the surface of the water, or causes a sludge or
emulsion beneath the surface of the water.
A common violation is bilge discharge. Use rags or
sponges to soak up fuel or oily waste, and then dis-
pose of them properly ashore. If a great deal of fuel
or oil is in the bilge, contact a knowledgeable marine
service to remove it. Never pump contaminated
bilge discharge overboard into the water.
Fill the fuel tank(s) to less than the rated capacity.
Always allow for fuel expansion.
The bilge pump(s) removes water from the bilge
area. If the pumps’ motor runs, but does not remove
any water, the pump may be clogged. If there is no
visible debris clogging the pump and water is still not
being removed, check the discharge hose for kinks
or obstructions. The bilge pumps can also be oper-
ated in manual mode by using the switches on the
main electrical panel.
BILGE PUMPS
The 420 Premiere is equipped with two bilge pumps,
including one emergency high water bilge pump.
Your yacht is also equipped with a shower sump
with one pump and float switch.
The forward and aft bilge pumps are equipped with
switches on the control station switch panel. These
switches have ON and AUTO positions. Switching
it to the ON position will run the pump continuous-
ly. When the switch is in the AUTO position, the
pump is activated when enough water is in the
bilge to raise the float switch to its highest position,
and is deactivated when the water recedes.
Unless being serviced, the pumps should NOT be
left in MANUAL mode.
Whenever a bilge pump turns ON, either manually
or automatically, the systems monitor will display the
active pump.
An alarm inside the dash will sound if the accumu-
lated engine compartment bilge water level is high-
er than normal. Immediate attention to the area indi-
cated on the system monitor is required if high water
alarms are activated. Each pump is protected by a
breaker on the main DC breaker panel located on
the aft engine room component board.
Maintenance
You will need to frequently inspect the area under
the float switches to ensure they are free from
debris and any gummy bilge oil. To properly clean,
soak in heavy duty bilge cleaner for 10 minutes,
agitating it several times. Check for unrestricted
operation of the float. Repeat the cleaning proce-
dure if necessary.
Inspect the bilge pump intakes and keep them free
of dirt or material that may impede the flow of water
through the pump. To clean the pump strainer,
depress the lock tabs on both sides of the pump and
lift the pump motor.
BILGE INFORMATION
5
5-1
EMERGENCY
HIGH WATER
FLOAT SWITCH
EMERGENCY
HIGH WATER
BILGE PUMP
FLOAT SWITCH
BILGE PUMP
AFT
Figure 5.1 Bilge Pump