Lowering The Mast - Manually; Lowering The Mast - Electric Winch Option - Generac Power Systems MAGNUM MTT20IF4 Operating Manual

Combination light tower generator & water trailer
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Drain the tank when the temperature is expected to drop below 32°F (0°C) or if the unit is
TO REFILL THE WATER TANK:
1. Close all hose bibbs.
2. Remove the tank cover; leave the smaller inspection cap in the center of the cover in place.
3. Fill the tank from a water source.

LOWERING THE MAST - MANUALLY

1. Shut down the lights and engine, refer to
minutes before lowering the mast.
2. Loosen the mast rotation knob. Rotate the mast until the white arrows are aligned and the metal stop tabs are
touching. Tighten the mast rotation knob.
3. Turn the upper mast winch handle counterclockwise to collapse the mast to its lowest position. Ensure the
electrical cord does not get caught in, or pinched by, the mast while it is being lowered.
STOP IMMEDIATELY if the mast hangs up or the winch cable begins to develop slack.
Excess slack in the cable could cause the mast to collapse, which could result in personal
injury or equipment damage. Contact an authorized service center.
4. Release the mast lock by pulling the safety pin on the mast lock and pulling the lock bar free. Turn the handle
of the lower mast winch counterclockwise until the mast rests in the transport cradle.
Note: If the mast lock bar does not pull free, activate the lower winch slightly to relieve pressure on the mast bar.
5. After the mast is completely down, insert the mast cradle locking pin and secure it with the safety pin.
Note: If the trailer is going to be moved, Magnum Power Products LLC strongly recommends the lights be removed
from the mast and stowed for transportation. Refer to

LOWERING THE MAST - ELECTRIC WINCH OPTION

1. Shut down the lights and engine, refer to
minutes before lowering the mast.
2. Loosen the mast rotation knob. Rotate the mast until the white arrows are aligned and the metal stop tabs are
touching. Tighten the mast rotation knob.
3. Press and hold the upper winch control switch downward to collapse the mast to its lowest position. Ensure the
electrical cord does not get caught in, or pinched by, the mast while it is being lowered.
Note: Some electric winch models are equipped with an anti-backlash safety limit switch. This switch will disconnect
power to the winch if excess cable slack is detected, preventing accidental lowering of the mast.
STOP IMMEDIATELY if the mast hangs up or the winch cable begins to develop slack.
Excess slack in the cable could cause the mast to collapse, which could result in personal
injury or equipment damage. Contact an authorized service center.
34
to be stored for a long period of time.
"Shutting Down the Unit" on page
CAUTION
"Removing the Lights for Transportation" on page
"Shutting Down the Unit" on page
CAUTION
32. Allow the lights to cool 10-15
34.
32. Allow the lights to cool 10-15

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