Raising The Mast - Generac Power Systems MAGNUM MLT4250 Owner's Manual

Operation
into place. Turn the jack handle clockwise to start
leveling the trailer.
7. Rotate each jack handle clockwise to start leveling
the trailer. Adjust all four jacks by rotating their
handles clockwise until they are firmly in contact
with the ground (G).
8. Before raising the mast, it may be necessary to
adjust the lamps. The lamps may be adjusted up,
down, left or right by loosening the wing nuts on the
trunnion (H) and aiming the lamps in the desired
direction. Tighten the hardware completely and
make sure the lamps are connected to the junction
box (J).

Raising the Mast

DANGER
Electrocution. DO NOT use the unit if
electrical cord is cut or worn through. Doing
so will result in death or serious injury.
WARNING
Tipping hazard. Extend the outriggers and level the unit
before raising the mast. Keep the outriggers extended
while the mast is up. Failure to do so could cause the unit
to tip and fall and could result in death or serious injury.
1. Set up and level the unit. See
2. See Figure 3-2. Remove mast cradle locking pin
from mast cradle (A).
3. Check mast cables for excessive wear or damage.
Verify the cables are properly centered in each
pulley (B). Check the electrical cord for damage.
4. Verify the area around the unit is clear before
raising the mast to vertical position.
5. Remove the safety pin from the mast lock bar (C).
Using the handle for the lower mast winch (D),
raise the mast until it is vertical and the tab on the
mast is positioned into the mast lock. The mast
lock bar should snap into place automatically.
Secure the lock with the safety pin (E).
6. After mast is up and locked into place, use upper
mast winch (F) to telescope the mast to the desired
height. Extend mast slowly, verifying the electrical
cord is extending at the top sections of the mast.
Do not extend past the colored mark (G).
IMPORTANT NOTE: Contact a Generac Mobile Prod-
ucts Authorized Service Dealer immediately if the
mast hangs up or the winch cable develops slack.
7. Rotate mast by loosening mast rotation knob at
bottom of mast (H). Turn mast until the lights face
in the desired direction and then tighten the knob.
14
(000263a)
(000266)
Light Tower Setup.
DETAIL A DETAIL C
B
F
D
B
Figure 3-2. Raising the Mast
WARNING
Tipping hazard. Do not extend the mast beyond the
colored mark on the second mast section. The unit
can become unstable and tip or fall, causing injury.
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.
WARNING
Personal injury or equipment damage. Do not raise
or lower the mast while the unit is operating.
Doing so can break the lenses and cause the
lamps to shatter.
Owner's Manual for MLT Light Tower
DETAIL E
STOP
DETAIL G
B A
H
C
E
004660
(000262)
(000265)
(000279)