TM 9-2320-211-10
(9) When a lift and swing operation is
required, remove two L-shaped retaining
pins (9) securing shipper braces (8) to
brackets. Swing braces up and secure to
shipper bracket (7) with L-shaped retaining
pins.
CAUTION
Do not pay out cable after hook
has reached the load or ground.
Continued drum rotation will
loosen cable on drum.
(10) Push hoist control lever (14)
forward to unwind cable and lower hook to
ground or load.
Warning
During crane operation, direct
all personnel to stand clear of
crane load. A snapped cable, or a
s h i f t i n g or swinging load, can be
extremely dangerous. Never
exceed the safe load limits.
CAUTION
When extending the boom with the crowd control lever (15), do not jam the crane
block into the boom head sheave. Pushing the crowd and hoist (14) control levers
at the same time will prevent this. This will keep the crane block a constant
distance from the boom head.
Once the load has been lifted, do not attempt to move the boom up or down, as
this may damage the boom hydraulic cylinder. If the bbom height must be
adjusted, lower load to ground or to a support with the hoist cable before adjusting
boom height.
(11) Secure cable hook (12) to load, pull back on hoist control lever (14) to raise load,
and push or pull crowd (15) and swing (16) control levers as necessary to move load to desired
position.
NOTE
The maximum boom settlement (rate of uncontrolled descent) witk a 10,000
pound load, a 11-foot 6-inch radius, and oil temperature at 100 F., 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 067081
2-107
