Automatic Shutdown; Light Operation - Generac Power Systems Magnum MLT4200 Operating Manual

Light tower
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soon as it is glowing, turn the key to the right Start position and hold it until the engine cranks and starts running.
Release the key, it will move to the Run position.
Note: For cold weather conditions, refer to the engine operator's manual for appropriate glow plug interval.
ACTIVATE GLOW PLUG
OFF
GLOW
PLUG
Do not crank the engine longer than 10 seconds at a time. If the engine will not start, wait
30 seconds to allow the starter motor to cool and then repeat the starting procedure.
Note: If oil pressure is not obtained within 15 seconds after the key is switched to the Run position, the low-oil
automatic shutdown will turn off the fuel supply, stopping the engine. Check the oil level and turn the key to the OFF
position to reset the oil pressure timer before attempting to restart the engine.
3. Once the engine is running, allow it to reach normal operating temperature before switching on any loads.

AUTOMATIC SHUTDOWN

This unit is equipped with a low oil pressure and high coolant temperature automatic shutdown system. This system
will automatically shut off the fuel supply to stop the engine if oil pressure drops too low or the engine exceeds normal
operating temperature. Return the switch to the OFF position to reset the unit after you have determined the cause
of the shutdown.

LIGHT OPERATION

NEVER OPERATE THE LIGHTS WITHOUT THE PROTECTIVE LENS COVER OR WITH
A LENS COVER THAT IS CRACKED OR DAMAGED. The bulbs in the light fixtures
produce high temperatures and operate under pressure. A broken or missing lens
1. Once the engine is up to temperature and running
smoothly, switch the main circuit breaker (A) to the
ON (I) position.
2. With main circuit breaker on, switch each individual
circuit breaker for the lights (B) to ON (I), one at a time.
3. The ballast indicator lights (C) will come on and
continue to get brighter as the lights warm up, and
then remain on. This confirms that power is coming
from the ballasts to the lights.
4. If an indicator light does not come on, the ballast may
need to be serviced. If the indicator light comes on
and stays lit but the related light is not illuminated,
check the bulb or the mast wiring. Refer to
shooting the Lights" on page 30.
CRANK ENGINE TO START
RUN
GLOW
PLUG
START
Excessive cranking will cause damage to the starter.
cover could cause the bulbs to shatter, causing injury.
"Trouble-
OFF
GLOW
RUN
PLUG
START
WARNING
A
240VAC
MAIN CIRCUIT
BREAKER
ON
ON
ON
TURN
MAIN
BREAKER
OFF
RELEASE KEY
OFF
RUN
START
00203
B
C
BALLAST INDICATOR LIGHTS
I
I
I
I
ON
ON
ON
O
O
O
O
MAST LIGHT SWITCHES
GLOW PLUG
OFF
INDICATOR
GLOW
RUN
PLUGS
START
NEUTRAL BONDED TO FRAME
00148
19

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