Automatic Shutdown; Light Operation - Generac Power Systems MAGNUM MTT20IF4 Operating Manual

Combination light tower generator & water trailer
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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 OFF (O) position to reset the unit after you have
determined the cause of the shutdown.
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.

LIGHT OPERATION

The lights are turned on and off using the L401 controller. To view the mast and light screens, press both ↑ and ↓
buttons simultaneously, the navigation menu is then displayed. Once entered, cycle to the mast and light section
and enter.
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 cover could cause the bulbs to
1. Once the engine is up to temperature and running smoothly, switch the main circuit breaker to the ON (I) position.
2. The lights will automatically turn on 15 seconds after the unit is started. If it is desired to turn the lights on or off,
cycle through the mast and light screens until you find the screen that selects the light (s) to be turned on or off.
To turn the light(s) on, press and hold the ↑ button until the timer bar finishes. To turn the light(s) off, press and
hold the ↓ button until the timer bar finishes. The lights can be turned on or off individually or all together.
Turn Lights On or Off Individually
3. The lights require a warm up period of 5-15 minutes before they reach full output. If the lights are shut down,
they require a cool down period of approximately 10 minutes before they can be switched on again.
4. The light tower uses four 1000W bulbs. When checking or replacing the bulbs, wipe them with a clean cloth to
avoid leaving any grease, oil residue or fingerprints on the glass. Any residue can create a hot spot on the bulb,
causing premature bulb failure.
Bulbs become extremely hot when in use. Allow bulb fixture to cool 10-15 minutes before
28
WARNING
shatter, causing injury.
CAUTION
handling or lowering the mast.
Turn Lights On or Off at Same Time
00899

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