Safety Shutdown Switches - Westerbeke 8.0KW - 60Hz Operator's Manual

STARTING/STOPPING PROCEDURE
STARTING UNDER COLD CONDITIONS
Make sure the lubricating oil confonns with the ratings for
the prevailing temperature. Check the table in the ENGINE
OIL section in this manuaL
The battery should be fully charged to minimize voltage
drop.
Use a sufficient amount of preheat to aid in starting. See the
TemperaturelPreheat
chart on the previous page.
STOPPING PROCEDURE
1. Remove the AC electrical load from the generator and
allow the generator to run for three to five minutes to
stabilize its operating temperatures.
2. Depress the STOP switch and hold it until the generator
is completely stopped.
3. Now release the STOP switch.
Remote Stopping Procedure
To stop the generator, depress the STOP switch which opens
the nonnally closed B+ path for voltage to the engine's run
-circuit. The STOP switch must be held open until the
generator comes to a complete stop and the green LED light
goes out. .
SAFETY SHUmOWN SWITCHES
The engine is protected by three automatic shutdown
switches. Should shutdown occur, do not attempt to restart
without finding and correcting the cause. Refer to the
heading "Engine Stops" in the TROUBLESHOOTING
section of this manual.
The following is a description of these automatic shutdown
switches:
High Exhaust Temperature Switch
An exhaust temperature switch is located on the exhaust
elbow. Nonnally closed, this switch will open and interrupt
the DC voltage to the K2 relay (shutting OFF the engine)
should the switch's sensor indicate an excessive exhaust tem-
perature (an inadequate supply of raw water causes high
exhaust temperatures). This switch opens at 260-270°F (127-
132°C). This switch resets at approximately 225°F (l07°C).
EXHAUST ELBOW
HIGH EXHAUST
~
I'
~tra.::=~
TEMPERATURE
r
SWITCH
Coolant Temperature Switch
A high coolant temperature switch is located on the thennostat
housing. Nonnally closed, this switch, should the fresh water
coolant's operating temperature reach approximately 210°F
(99°C), will open and interrupt the DC voltage to the K2
relay, thereby shutting off the engine. This switch resets at
195°F (107°C).
COOLANT
TEMPERATURE
SWITCH
Low Oil Pressure Switch
A low oil pressure shutdown switch is located off the engine's
oil gallery. Nonnally open in a static state, this switch's sensor
monitors the engine's oil pressure. Should the engine's oil
pressure fall to 5-10 psi, this switch will open interrupting the
DC voltage to the K2 relay, thereby shutting off the engine.
OIL PRESSURE SWITCH
OIL PRESSURE /
SENDOR /
Engine Circuit Breaker
The generator's engine is protected by an engine
moun~
manual reset circuit breaker (20 amps DC). Excessive current
draw or electrical overload anywhere in the instrument panel
wiring or engine wiring will cause the breaker to trip. In this
event the generator will shut down and the voltage to the K2
relay is terminated. If this should occur, check and repair the
source of the problem. After repairing the fault, reset the
breaker and restart the generator.
Engines & Generators
9