Atlas Copco QLT M10, Instruction Manual

Page: 21 / 46

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Deployment
Levelling the trailer
Prior to raising and extending the light tower mast, the
trailer must be level and the outriggers extended for
increased stability
To level the trailer:
1. Locate the levelling jack on the trailer drawbar at
the front of the trailer.
2. Pull the locking pin and rotate the jack downward.
When the jack is properly set, the locking pin
snaps into position with an audible “click.”
3. Block or chock the trailer wheels.
4. Release the tow hitch from the ball coupler or
pintle on the tow vehicle.
5. Crank the jack handle until the jack foot touches
the ground and the tow hitch rises up off the tow
vehicle.
6. Locate the outrigger on either side of the trailer.
Pull the outrigger locking pin (not the jack locking
pin) and pull the outrigger outward, away from the
trailer, as far as it will go. When fully extended,
the locking pin snaps into position with an audible
“click.”
7. Pull the jack locking pin and rotate the jack
downward until the locking pin engages. Do not
lower the jack foot yet.
8. Repeat the previous two steps for the other
outrigger, then locate and set the jack at the rear of
the trailer.
9. Determine which side of the trailer is highest, and
extend the jack foot on that side downward until it
rests firmly on the ground. Then level the trailer
with the remaining three jacks.
Raising the tower
When the tower is vertical, the mast can be extended
to 30 feet (9.14 meters). The tower can be rotated 180
degrees left or right while the mast is extended and the
lights are lit.
To raise the tower and aim the lights, use the
following instructions.
1. Before raising the tower:
a Adjust the light fixtures to point upward or
downward, and inward or outward.
• The lights can be positioned without tools.
• To aim the lights, loosen the knob on the outside
end of each fixture, and use the integrated handles
to move the fixture. Tighten the knob when done.
b Ensure the trailer wheels are blocked or chocked.
c Level the trailer and extend the outriggers (see
page 21).
d Connect the trailer ground stud to earth ground
(see Figure 3.3).
e Ensure the mast is not attached to the maintenance
panel with the lifting chain (Figure 3.4).
f Take the weather into account: do not raise or use
the tower in high winds or an electrical storm.
g Ensure the area above the tower is clear of all
obstructions.
Figure 3.3 Ground stud
WARNING
Falling equipment could cause serious injury
or death.
• Level the trailer and extend outriggers prior
to use.
• For safe operation, outriggers must remain
extended while the tower mast is vertical.
DANGER
Electric shock hazard.
Contact with overhead
electrical power lines will
cause serious injury or death.
Do not position light tower
under power lines.