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PAGE 30 — LT-12 SERIES LIGHT TOWER — OPERATION MANUAL — REV. #1 (08/15/08)
LT-12 SERIES LIGHT TOWER — MAST OPERATION
Raising Mast (Top and Center Tower Sections)
Once the tower mast has been locked into its vertical position,
the top and center tower sections can now be raised. These two
tower sections allow the flood lights to be extended upwards in
excess of 30 ft. Perform the following steps when extending the
floodlights:
1. Locate the "vertical mast extension hand winch", see Figure
3, Item 2.
2. Turn the vertical mast extension hand winch lever clockwise,
and observe that the flood lights begin to climb upward.
3. Continue turning the hand winch lever in the clockwise
direction until the desired height has been reached.
4. Release the hand winch lever, this winch is of the self-locking
type. The tension on the cable will keep the mast sections in
place.
Lowering Mast (Top and Center Tower Sections)
1. Turn the vertical mast extension hand winch lever counter-
clockwise, and observe that the flood lights begin to drop
downward.
2. Continue turning the hand winch lever counter-clockwise
until the top and center mast sections have been fully
retracted (slack in the cable).
Lowering Mast (Lower Lower Section)
1. Remove the quick release locking pin to allow the mast
section to be lowered to the horizontal section. Hold the
locking pin open until the swivel base tab clears the lock.
2. Turn the vertical mast hand winch lever counter-clockwise,
and observe that bottom tower mast begins to approach the
horizontal position.
3. Continue turning the vertical hand winch lever in the counter-
clockwise direction. As the lower tower mast approaches
the locking cradle, pull the tower release pin to allow the
tower mast to rest in the cradle.
4. Once the lower mast is resting in the cradle of the tower
support stand, align the hole on the mast with the hole on
the cradle and insert locking pin.
Raising Mast (Lower Mast Section)
Follow the steps below to raise the lower mast:
1. To release the mast from the support stand locking cradle,
PULL the large cradle locking pin (see Figure 3, item 9).
This will unlock the mast from the horizontal position.
2. Remove the bottom mast quick release locking pin (see
Figure 3, Item 17) before raising tower to the vertical position.
3. To place the mast in the vertical position, TURN the vertical
winch hand lever (Figure 3, item 16) clockwise until the
mast is pointing upwards at 90 degrees.
4. Once the mast in the vertical position and the mast lock
captures the swivel base tab, insert the quick release locking
pin to prevent the mast from falling.
Outriggers and Support Stands
1. Make sure both outriggers are extended. To extend the
outriggers, pull the locking pin on the outrigger and hold
while sliding out the outrigger assembly.
2. As soon as the pin clears the travel position hole, release it
and continue sliding out the outrigger. The pin must snap
into the outrigger locking hole in the extended position.
3. After extending all outriggers, rotate all trailer
jack stands
into the foot down position, then turn the crank handle on the
jack stands
clockwise to lower it and level the light tower.
4. Check behind the light tower and make sure all personnel
and objects are clear of the mast.
ALWAYS make sure the area above Light tower is open and
clear of overhead power lines and other obstructions. The
mast extends in excess of 30 ft. (9 meters). Contact with overhead
powerlines or other obstructions could result in equipment
damage,
Serious Injury or Death
!
DO NOT stand behind the trailer while the mast is being raised
or lowered. Serious Injury could result if the mast falls down.
DANGER - Overhead Obstruction Danger