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Parameter
1004
Year
Shutting Down the Unit
Check with personnel using power supplied by the unit
and let them know the power is going to be turned off.
Verify the power shutdown will not create any hazards by
accidentally turning off equipment that needs to remain
running (pumps, compressors, lights, etc.).
1. Remove all loads from the outlets.
2. Turn the lights OFF using the controller.
3. Switch the outlet breaker OFF (O).
4. Press the Stop (O) button.
5. After the unit shuts down, switch the Control Power
switch breaker OFF (O).
NOTE: Disconnect the battery if the unit is to be stored
for an extended period. Refer to the engine operator's
manual for additional extended storage procedures.
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
Control Power switch to the STOP (O) position to reset
the unit after the cause of shutdown has been
determined.
NOTE: The unit will turn off the lights at the stop time, but
the engine will continue to run for up to five minutes as a
cool down. If the stop button is pressed, the unit will
immediately stop.
Lower Radiator Hose Heater (If
Equipped)
Use and Maintenance
The lower radiator hose heater is designed to prevent
engine coolant from freezing in extreme cold weather
conditions. While the heater is designed to be operated
overnight if necessary, two to five hours of heating just
prior to starting is usually sufficient for proper engine
starting.
NOTE: Use the lower radiator hose heater only in its
designated location. Improper use can damage the
engine.
Perform the following steps when operating a unit
equipped with a lower radiator hose heater.
1. Verify the unit is level so as to maintain proper
orientation of the heater while it is in operation.
Owner's Manual for MLT4200IVF4 Light Tower
Description
2. Verify the cooling system is full of the proper
mixture of water and engine coolant before each
heater use.
3. Use only an undamaged, outdoor rated, three-
prong grounded 120VAC extension cord with a
minimum amperage rating of 10A. Connect the
cord to a properly grounded 120VAC, GFCI outlet.
4. Before starting the engine, unplug the extension
cord from the power first, then unplug the heater
cord set from the extension cord.
Lowering the Mast
Burn hazard. Lamps become extremely hot
while in use. Allow 10–15 minutes for cooling
before handling or lowering mast. Touching a
hot lens or fixture can cause severe burns.
1. Shut down the lights and engine. See
Switch.
2. If the trailer is going to be moved, it is
recommended that the mast is turned so the lights
face toward the back of the unit. To rotate the mast:
a. Loosen the mast rotation knob.
b. Rotate the mast until the white arrows are
c. Tighten the mast rotation knob.
3. Press and hold the winch control toggle switch
downward to collapse the mast to its lowest
position. Verify the electrical cord does not get
caught in, or pinched by, the mast while it is being
lowered.
Personal Injury. Stop immediately if the mast hangs
up or the winch cable develops slack. Excess slack
could cause the mast to collapse, resulting in personal
injury or equipment damage.
IMPORTANT NOTE: Contact a Generac Mobile
Products Authorized Service Dealer immediately if
the mast hangs up or the winch cable develops
slack.
NOTE: If the generator is not operational, and the
batteries do not have enough power to lower the mast, it
may be necessary to lower the mast manually.
0-99
WARNING
aligned and the metal stop tabs are touching.
The winch and lights should be facing toward
the back of the unit.
WARNING
Operation
Details
(000278)
Transfer
(000265)
25
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Troubleshooting
