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Operating Instructions
Voltmeter
The voltmeter displays battery and charging system
voltage. An indication of low or high voltage (the red
area) indicates an electrical system failure. The
cause of the failure should be determined and cor-
rected.
Water Temperature Gauge
The water temperature gauge monitors engine
cooling system temperature. If engine coolant
temperature exceeds 230° F (110° C), an overheat
condition exists; the water temperature light will
come on and the warning horn will sound.
Oil Pressure Warning Light
The oil pressure warning light indicates that engine
oil pressure is below the safe operating level [below
7 PSI (48 kPa)]. This light (and warning horn) will
come on when the ignition is turned ON, but should
go off after the engine is started. If the light fails to
come on when the ignition switch is turned ON, it
could indicate a burned out bulb. If the light comes
on during engine operation, stop the engine imme-
diately and correct the source of the problem before
further engine operation.
IMPORTANT: Continued operation of the engine
with an illuminated oil pressure warning light MAY
cause severe engine damage (if a low oil pressure
condition exists).
Water Temperature Warning Light
The water temperature warning light indicates that
engine coolant temperature is above the safe oper-
ating limit and the engine is overheating. If this
light comes on, there may be a problem with:
• Radiator cooling air flow (material packed into
radiator cooling fins, clogged air intake screen)
• Low coolant quantity in cooling system
• Engine fan belt
• Thermostat function
Stop the engine and correct the problem before fur-
ther operation.
IMPORTANT: Continued operation of the engine
with an illuminated water temperature warning light
MAY result in severe engine damage.
Ignition Switch
The ignition switch is used to start and stop the en-
gine (and preheat the diesel engine). The switch
has four positions: is the glow plug preheat po-
sition; “O” is the OFF position; RUN is the position
the key returns to after starting; “S” is the START po-
sition. When starting the engine, turn the key clock-
wise to the “S” position. Do not hold the key in the
“S” position longer than 10 seconds. If the engine
does not start, return the key to the “O” position for at
least 60 seconds before making a restart attempt.
Prolonged cranking can damage the starter motor
and shorten battery life. Release the key when the
engine starts, and it will return to the RUN position.
To stop the engine, rotate the key counterclockwise
to the “O” position.
NOTE: When starting the engine, turn and hold the
ignition key in the glow plug preheat position. The
time required is approximately 10 to 30 seconds, de-
pending on engine temperature. Refer to START-
ING THE ENGINE.
Ignition Switch
WARNING
If engine cooling system overheating is
indicated, continued operation of the en-
gine, even for a short time, COULD result
in fire, risk of personal injury, and severe
damage to equipment.
Glow Plug Preheat
OFF
ON
START