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 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 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
~+
path for
voltage to the engine's run circuit. The
STOP
switch must be held open until the generator
comes to a complete stop.
NOTE:
The
generator is stopped
when
the electric
solenoid mounted on
the
injection pump is
de-energized shutting off
the
flow
of
fuel (Models 20 KW
and 25
/Gl1).
The
32 KW Generator is
shutdown by
an
electric fuel solenoid that
is
attached
to
a lever
on
the
fuel injection pump.
SAFETY
SHUTDOWN
SWITCHES
The
engine is protected by three automatic shut-
down switches.
Should shutdown occur, do not
attempt
to
restarl 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).
HIGH
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°F (107°C).
HIGH
WATER
TEMPERATURE
SWITCH
Low
Oil
Pressure
Switch
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
PRESSURE
'SWITCH
-·
--s;;::og.
LOW
OIL
PRESSURE
SWITCH
[20
KW
SHOWN]
Engine
Circuit
Breaker
.
OIL
PRESSURE
SENDER
The generator's engine is proiected 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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