
STARTING/STOPPING
PROCEDURE
STARTING
UNDER
COLD
CONDITIONS
Make sure the lubricating oil conforms 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
Temperature/Preheat chart elsewhere in this section.
STOPPING
PROCEDURE
1.
Remove the
AC
electrical load from the generator and
allow the generator to run for three to five minutes to sta-
bilize 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 normally closed B+ path for voltage to the engine's run
circuit. The
STOP switch must
be
held open until the genera-
tor comes to a complete stop.
SAFETY
SHUTDOWN
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. Normally closed, this switch will open and interrupt
the
DC
voltage to
the
fuel solenoid
on
the injection
pump
(shutting
OFF
the engine) should the switch's sensor indicate
an excessive exhaust temperature (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 (107°C).
EXHAUST
TEMPERATURE
SWITCH
High
Water
Temperature
Switch
A high water temperature switch is located on the thermostat
housing. Normally 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 fuel
solenoid on the injection pump, thereby shutting
off
the
engine. This switch resets at
195°P (107°C).
WATER
TEMPERATURE
SWITCH
'
,--T
~
Low
Oil
Pressure
Switch
WATER
TEMPERATURE
SENDER
A low oil pressure shutdown switch is located
off
the
engine's oil gallery. Normally 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 fuel solenoid on the injec-
tion pump, thereby shutting off the engine.
OIL
JRESSURE
SENDER
OIL
PRESSURE
SWITCH
Engine
Circuit
Breaker
The
generator's engine is protected by an engine mounted
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 most generators will shut down because the opened
breaker disconnects the fuel supply.
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
8
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