TM 9-2320-211-10
CAUTION
Do not pay out cable after hook has reached the load or ground. Continued drum
rotation will loosen cable on drum.
(7) Push hoist control lever (15) forward to unwind cable and lower hook (10) to ground
or load.
WARNING
During crane operation, direct all personnel to stand clear of crane load. A snapped
cable, or a shifting or swinging load, can be extremely dangerous.
Never exceed the crane safe load limits.
CAUTION
Do not jam the crane block into the boom head sheave when extending the boom
with the crowd control lever (16). Pushing the crowd and hoist control levers at the
same time will prevent this. The crane block will maintain a constant distance from
the boom head.
Do not/attempt to move the boom up or down once the load is lifted. This may
damage the boom hydraulic cylinder. If the boom height must be adjusted, lower
load to ground or to a support, with the hoist cable, before using boom height lever
(14).
(8) Secure cable hook (10) to load, pull back on hoist control lever (15) to raise load,
and push or pull crowd (16) and swing (17) control levers, as necessary, to move load to desired
position.
NOTE
The maximum boom settlement (rate of uncontrolled descent) with a 10,000
pound load, an 11-foot 6-inch radius, and oil temperature at 100F., should not
exceed 3 inches in 6 minutes. Settling in excess of this amount indicates defective
lift cylinders and/or control valve. Notify organizational maintenance.
TA 067059
2-85
