540
HYDRAULIC SYSTEMS
Studio ti 03312 540-04usa
180
9
9.1 ELECTRIC PUMPS
9.1.1 Bilge pumps
Automatic bilge pumps controlled by float switches pump the bilge water
and discharge it overboard.
The bilge pumps are connected directly to the batteries and can be
operated when the battery disconnect switch is positioned to OFF. They
provide bilge water drainage at any time (keep the circuit breakers on the
electric panel of engineroom connected).
The pump suction intakes are fitted with mesh strainers to prevent foreign
materials and debris from entering the intake pipes and clogging the
piping and/or jamming the pump.
Bilge pumps can work in automatic mode, thanks to float switches, and
in manual mode.
To activate the pumps manually push relevant buttons in the helm station.
To run the bilge pumps you have to activate the relevant circuit breakers
placed on the electric panel of the engineroom.
For a better understanding consult the owner’s manual “Electrical
System”.
For more directions about the use of the individual systems and
equipment, consult the manuals provided by the individual equipment
manufacturers.
Should the bilge automatic suction pumps of the engineroom not be able
to drain water from the bilge, you can use an emergency draining system
installed in the bilge; this system operates by means of some selector
valves at manual operation, allowing to use the sea water pumps of
propulsion engines, as draining pumps.
These selector valves ensure, when set to normal position, the seawater
suction for engine cooling, through the intake seacocks and filters. In
emergency case, operate levers of both valves, by setting the valves to
emergency position: the pumps suction, driven by the engines, is then
diverted directly to the bilge. The levers are equipped with a spring
mechanism, because their operation must absolutely be wanted and not
accidental. Should it be necessary to use this draining system, the bilge
level must be checked continuously, because in case of complete
drainage, the engines will not be cooled down.
For correct procedure see “Engines emergency suction from the bilge”.
S
CAUTION
In emergency the sea water pumps of each engine can be used to drain
the engineroom bilge (for the correct procedure see the chapter “Engine
cooling system”).
S
CAUTION
SINKING HAZARD - Ensure proper pump operation.
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