52 Sedan Bridge
(525 Sedan Bridge)
4.3
S
ECTION
4 • B
ILGE
& U
NDERWATER
G
EAR
EXPLOSION/FIRE HAZARD – Run blower at least
four (4) minutes before starting engine or generator.
Check bilge and engine compartment for fumes.
!
WARNING
Do not allow obstructions to interfere with bilge blower
or ventilation intake operation. Engine performance
may be adversely affected.
!
WARNING
3. B
ILGE
B
LOWERS
The two (2) bilge blowers in the engine room
remove odors and excessive heat and provide
ventilation through the hull vents. The blowers are
wired through circuit breakers on the DC breaker
panel located on the aft bilge component board and
with switches on the control station switch panel
(see Fig. 2.8.1) and on the salon main DC
distribution panel (See Fig. 6.9.1).
B
ILGE
B
LOWER
(F
IG
. 4.3.1)
M
AINTENANCE
:
The bilge blowers should be checked periodically
to ensure that all electrical connections are
secured in place and that the blower motors are
operating efficiently.
T
ROUBLESHOOTING
:
If your bilge blowers fail to operate, depress
the breakers on the main DC breaker panel in
the port side aft bilge area to ensure that they
have not tripped.
B
LOWER
S
WITCH
L
IGHT
:
Light On: When a blower is turned ON, the light
in the switch will come on and stay on, indicating
that there is power to the blower.
Light Blinking: If the light is blinking, it is an
indication that the blower breaker has tripped.
Correct the problem and reset the breaker.
Light Not On: If you try to turn ON the blower
and no light comes on, then both breakers are
tripped and the blowers are not receiving power.
Correct the problem and reset the breaker. Blower
switch lights do not indicate that the blower motors
are operating. To ensure blower motors are
operating, listen for blower motor noise and
confirm air flow at bilge vent.
Run the blowers when operating below cruising
speed and when vessel is at rest with the
generator running to dissipate heat buildup in the
bilge.
Run the blowers when operating below cruising
speed and when vessel is at rest with the generator
running to dissipate heat buildup in the bilge.
