Atlas Copco QLT M10, Instruction Manual

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Lowering the tower
Before moving or storing the light tower, lower the
mast and lock it in place. To lower the tower, see
Figure 3.6 and use the following instructions.
1. Turn off the tower lights and the engine. For
increased lamp life, allow the lights to cool for 15
minutes before proceeding.
2. Rotate the mast:
a Loosen the rotation-lock knob.
b Use the handle on the mast to rotate the mast until
the mast-mounted winch is on the same side of the
mast as the trailer tow hitch.
c Tighten the rotation-lock knob.
3. Lower the tower:
• Rotate the mast-mounted winch handle to lower
the tower until the lights are down as far as
possible.
• While lowering the mast, ensure the power cord
on the mast collapses freely and does not become
pinched or tangled.
4. Lower the mast to the horizontal (transport)
position:
a Release the spring-loaded vertical-lock pin by
pulling it outward, away from the mast. If the pin
resists, ensure the mast is fully vertical by using
the drawbar mounted winch to tighten the cable.
b While pulling on the pin to release it, use the
drawbar-winch to lower the mast. Rotate the
drawbar-winch handle to lower the mast. After the
mast begins to tilt, release the pin.
5. With the mast in the horizontal position, resting in
the transport cradle, insert the horizontal-lock pin
and secure it with the attached cotter pin.
Figure 3.6 Lowering the tower