Generac Power Systems MAGNUM MLT4200IVF4, Owner'S Manual, Page: 30 / 56

Operation
26 Owner’s Manual for MLT4200IVF4 Light Tower
NOTE: Generac Mobile Products strongly recommends
that the lights be removed from the mast and stowed for
transportation.
Lowering the Mast—Manually
NOTE: Do not use this procedure unless it is absolutely
necessary. Continuous use of this procedure could
damage the planetary gear brake of the winch. This
procedure will not work if the planetary gear brake is
damaged.
Figure 3-9. Winch Assembly
1. Remove the power cables from the two terminals
on the winch motor assembly (A).
2. Remove the two flange head screws (B) securing
the winch motor assembly to the winch. Retain the
screws for reassembly.
3. Carefully remove the motor assembly (C), making
sure the two pieces do not separate.
4. Insert a 3/8” allen head wrench (D) into the sleeve
bearing.
5. Rotate the wrench counterclockwise to lower the
mast. If any slack is observed in the cable, stop
immediately and remove the slack.
6. When the mast is completely down, install the
winch motor assembly, securing it with the screws.
Towing the Unit
Once the engine is shut down and the mast and lights are
properly stowed, follow these steps to prepare the unit for
towing.
1. Raise the rear jack completely and release the
locking pin to rotate it up into the travel position.
Verify the locking pin snaps into place.
2. Raise the outrigger jacks completely and release
the locking pins to rotate them up into the travel
position. Verify the locking pins snap into place.
Release the outrigger locking pins and slide the
outriggers into the trailer frame until the locking
pins snap into place.
3. Use the tongue jack to raise or lower the trailer
onto the hitch of the towing vehicle. Lock the hitch
coupling and attach the safety chains or cables to
the vehicle. Remove the tongue jack locking pin
and rotate the jack into the travel position. Replace
the locking pin.
NOTE: A film of grease on the coupler will extend
coupler life and eliminate squeaking. Wipe the coupler
clean and apply fresh grease each time the unit is towed.
4. To ensure proper operation of the jacks, lubricate
the grease fittings located on the leveling jacks.
Refer to
Jack Maintenance . For maintenance
interval information, refer to Table 4-1 .
5. Connect any trailer wiring to the tow vehicle. Check
for proper operation of the directional and brake
lights.
6. Verify the cradle locking pin is in place.
7. Verify the enclosure and doors are properly
latched.
8. If the unit is going to be driven over rough ground,
remove the bulbs from the light fixtures.
9. Check for proper inflation of the trailer tires. For
maximum tire pressures, refer to Specifications .
10. See Figure 3-10 . Check the wheel lugs. Tighten or
replace any lugs that are loose or missing. If a tire
has been removed for axle service or replaced,
tighten the lugs, in the order shown, to the
following specifications:
Figure 3-10. Tightening Wheel Lugs
a. Start all lug nuts by hand.
b. First pass: tighten to 20-25 ft-lbs (27-33 Nm).
c. Second pass: tighten to 50-60 ft-lbs (67-81 Nm).
d. Third pass: tighten to 90-120 ft-lbs (122-162 Nm).
NOTE: After the first road use, re-torque the lug nuts in
sequence.
(000278)
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.
004558
D
C
A
A
B
5
2
3 4
1
003754