Westerbeke 4.5 KW BCGTE 60Hz Manual del operador descargar pdf (Pagina 20)

Dry

stack-type

exhaust

systems

(shown

the right)

l1lJ.lS1:

be at-

tached

the generator engine's ex-

haust

manifold by means

a flexible

connector pipe. This system lIlll.&be

properly supported and insulated

prevent water from entering into the

engine's

cylinders. Provisions

l1lJ.lS1:

made

for

discharging

the

engine's cooling sea water.

Exhaust

System

Failures

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SEA

WAT":

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DRY

STACK

EXHAUST

When the engine's sea water

fed into an exhaust system so that the full stream

this water strikes a sur-

face, erosion takes

place. This erosion may cause premature failures. The proper design of either a water

jacketed

water injected

''Wet''

exhaust system

prevent this problem requires that the sea water inlet

positioned so that the entering stream

sea

water does

not

directly strike a surface. In addition, the velocity

the entering sea water stream should be as low as possible, which can be achieved

having inlet fittings

as big in diameter as

possible.

The best protection against carbon monoxide pOisoning

a daily inspection of the complete exhaust sys-

tem. Check for

leaks around manifolds, gaskets, and welds. Make sure exhaust lines are

not

heating sur-

rounding areas

excessively. If excessive heat

present, correct the situation immediately. If you notice a

change in the sound

appearance

the exhaust system, shut down the unit immediately and have the sys-

tem inspected and repaired at once by a

qualified mechanic.

Make sure there are no unnecessary objects suspended from any portion of the exhaust

lines. Exhaust risers

installed off the exhaust

manifold

should

not

exceed 8 Ibs in total weight when rigidly constructed. Exces-

sive weight

could cause deflection or distortion of the manifold resulting

damage and/or internal leaks.

In-

spect insulated portions

the exhaust system to ensure there is

deterioration of the insulation.

CAUTION

Prolonged

cranking intervals withoutthe engine starting can result in filling the engine-mounted

exhaust system with sea water

coolant. This may happen because the sea water pump

pumping sea water through the sea water cooling system during cranking. This sea water can

enter the engine's

cylinders by way of the exhaust manifold once the exhaust system fills.

Prevent this from happening by closing the

sea

water supply through-hull shut-off, drain the

exhaust

muffler, and correct the cause for the excessive engine cranking needed to obtain a

start. Engine damage

resulting from this type

sea water entry

not

a warrantable issue;

the owner/operator

should keep this in mind.

Westerbeke Generators

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Westerbeke 4.5 KW BCGTE 60Hz Manual del operador Pagina 20

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