TM 5-3810-307-10
Retracting the Boom.
WARNING
When retracting the boom, the load will lower unless
the hoist rope is taken in simultaneously.
a.
Place TELE/CLAMSHELL Selector Switch (10, Figure 5-2) to TELE.
b.
To retract boom, depress bottom pad on Telescope/Clamshell Control Pedal
(21) and hold until boom retracts to desired length.
c.
To stop boom, push top pad of Telescope/Clamshell Control Pedal (21) to its
neutral position.
Lowering Hoist Rope.
WARNING
Before lowering or raising the load, ensure the area
beneath the load is clear of all obstructions and
personnel.
CAUTION
When starting or stopping the hoist, do not jerk the
Boom LIFT/MAIN HOIST Control Lever (8, Figure 5-
which could result in possible damage to the crane.
NOTE
When the load is stopped at the desired height, the
automatic brake will engage and hold the load as
long as the control lever remains in neutral.
a.
If operating the auxiliary hoist, place AUX HOIST ON/OFF Selector Switch
(19) to ON.
b.
To lower hoist rope, push Boom LIFT/MAIN HOIST Control Lever (8) or
SWING/AUXiliary Hoist Control Lever (20) forward (away from the operator)
and hold until the hook or load is lowered to the desired height.
c.
To stop hoist rope, return Boom LIFT/MAIN HOIST Control Lever (8) or
SWING/AUXiliary Hoist Control Lever (20) to its neutral position. This
automatically sets the hoist brake.
5-7.12
Raising the Hoist Rope.
a.
If operating the auxiliary hoist, place AUX HOIST ON/OFF Selector Switch
(19, Figure 5-2) to ON.
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