Westerbeke BTD 8.0 KW 60Hz Operator's Manual page 40

UCAUTION
II
Do not nse a scoop-type thru-hull fitting as a means of supplying sea water to the generator.
Water pressure against this type fitting, while the vessel is under way, can push sea water past
the sea water pump's impeller into the generator's exhaust system, filling it and the engine as
well. Flush-type, clear, thru-hull fittings are recommended and should be located on the hull so
as to be below the waterline during all angles of boat operation.
The use of common-type street elbows is not recommended for plumbing the sea water circuit.
These generally have very restrictive inside diameters. Machined fittings are preferred.
Automatic Shutdown
High Exhaust Temperature Shutdown Switch (normally closed)
An exhaust temperature switch is located on the exhaust elbow. This switch will open and shut the fuel
solenoid OFF (which turns OFF the engine) should the switch's sensor indicate an excessive exhaust
temperature (an inadequate supply of sea water coolant causes high exhaust temperatures). This switch
opens at
260
0
-
270
0 F (127 -
132
0 C). This switch resets at 195
0
F (107 0
C).
Low Oil Pressure Shutdown Switch (normally open)
A low oil pressure shutdown switch is located off the engine's oil gallery. This switch's sensor monitors
the engine's oil pressure. Should the engine's oil pressure fall to 10-15 psi, the switch will open shutting
OFF the fuel solenoid (which turns OFF the engine).
I
WARNING
I
Although diesel engine exhaust gases are not as toxic as exhaust fumes from gasoline engines,
carbon monoxide is present in diesel exhaust fumes. Carbon monoxide is a dangerous gas that
can cause unconsciousness and is potentially lethal. Some of the symptoms or signs of carbon
monoxide inhalation or poisoning are listed below.
• Dizziness
• Vomiting
• Intense headache • Muscular twitching
• Weakness and sleepiness • Throbbing in temples
If you experience any of the above symptoms, get out into fresh air immediately.
WESTERBEKE GENERATORS
38