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To rotate mast:
a. Loosen mast rotation knob.
b. Rotate mast until white arrows are aligned and
metal stop tabs are touching.
c. Tighten mast rotation knob.
Lowering the Mast—Electric Winch
(If Equipped)
WARNING
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.
WARNING
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.
1. Shut down lights and engine. See
the
Unit.
2. Press and hold upper winch control switch
downward to collapse mast to lowest position.
Verify electrical cord does not get caught in, or
pinched by, the mast while it is being lowered.
3. If unit will be moved, rotate mast so lights face rear
of unit. To rotate mast:
a. Loosen mast rotation knob.
b. Rotate mast until white arrows are aligned and
metal stop tabs are touching.
c. Tighten mast rotation knob.
NOTE: Some electric winch models are equipped with
an anti-backlash safety limit switch. This switch discon-
nects power to the winch after mast is completely low-
ered. This prevents the cable from continuing to unwind
and becoming entangled around the winch drum.
IMPORTANT NOTE: Contact an GMP ASD immedi-
ately if the mast hangs up or the winch cable devel-
ops 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. Always
attempt to recharge the batteries and lower the mast
electrically before proceeding.
Manually Lowering the Mast
IMPORTANT NOTE: Do not use this procedure
unless it is absolutely necessary. Frequent use of
this procedure could damage the motor shaft.
Owner's Manual for MLT6SC Light Tower
1. See
(000278)
2. Attach drill chuck firmly to exposed motor shaft (B).
3. Using drill, slowly rotate motor shaft counterclock-
4. Detach drill chuck and install motor cover after
(000265)
Towing the Unit
Shutting Down
Once engine is shut down and mast and lights are
properly stowed, proceed as follows to prepare unit for
towing.
1. Raise outrigger jacks completely and release lock-
2. Use the tongue jack to raise or lower trailer onto
3. To ensure proper operation of the jacks, lubricate
4. Connect any trailer wiring to the tow vehicle. Check
5. Verify the enclosure is properly latched.
6. Check for proper inflation of the trailer tires. For
Figure
3-14. Remove the motor cover (A).
Figure 3-14. Manually Lowering the Mast
wise to lower mast.
mast is completely lowered.
ing pins to rotate them up into travel position. Verify
locking pins snap into place. Release outrigger
locking pins and slide outriggers into trailer frame
until locking pins snap into place.
hitch of tow vehicle. Lock the hitch coupling and
attach safety chains or cables to tow vehicle.
Remove tongue jack locking pin and rotate jack
into travel position. Install locking pin.
the grease fittings located on the leveling jacks.
Refer to
Jack Maintenance.
interval information, refer to
Schedule.
for proper operation of the directional and brake
lights.
maximum tire pressures, refer to Specifications.
Operation
A
B
002832
For maintenance
Basic Maintenance
33
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Troubleshooting
