Westerbeke BCD 4.4KW Instrukcja Operatora Strona 24

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Exhaust
System
IWARNINGI
Although diesel fuel is not as dangerous as gasoline, precautions should be taken
to
guard
against CARBON MONOXIDE GAS. Carbon monoxide is a dangerous gas that can cause un-
consciousness and is potentially lethal. Some
of
the symptoms
or
signs
of
carbon monoxide
inhalation
or
poisoning are listed below.
o Dizziness o Vomiting
o Intense Headache o Muscular Twitching
o Weakness and Sleepiness o Throbbing in Temples
All exhaust systems should be such that the entry
of
sea water into the engine's exhaust manifold and
cylinders is prevented while the engine is not running,
or
while the vessel is under sail
or
power in which case
the vessel may experience heeling
or
backing down from following seas
or
any other conditions. Special at-
tention must be taken
to
make certain the exhaust system is secure, tight and free
of
leaks. The sea water
supply through-hull sea
cock
fittings must be
of
the flush-hull type. High-speed
scoop
type fittings must not
be used, as they tend
to
encourage siphoning.
When a water lift type exhaust system is used, the exhaust muffler should be mounted as close
to
the engine
as practical. The exhaust discharge
should always
drop
downward into the
exhaust muffler. Loops in the exhaust
hose between the water-injected ex-
haust elbow and the water lift muffler
should be avoided, as these will trap and
hold water.
For
installations
where
the
exhaust
manifold/Water-injected exhaust elbow
is at
or
below the vessel's water line,
provisions must be made
to
install a
siphon-break
or
a vent in the sea water
supply hose
to
the water-injected ex-
haust elbow. This stops the flow
of
sea
water that runs through the sea water
cooling system from filling the exhaust
and engine cylinders when the engine is
shut down. This sea water supply hose
must be looped above the water line and
the siphon-break
or
vent installed in the
high point
of
the
loop
above the water
line. This siphon-break
or
vent must al-
ways be above the water line during all
angles
of
vessel operation
to
prevent
siphoning. The vent, when used, must
have its vent hose
or
tube routed so it
can remain above the water
line and
empty
of
water when the engine is shut
down. This allows air
to
enter through
this vent
to
prevent siphoning.
21
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WITEI
LIIE
!EIUITOR
BElOW
WilER
LIIE
SEI
VRTER
PUNP
Westerbeke Generators
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