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 TM 55-1925-273-10-1
0067 00
CARGO CRANE
Pre-Use Checks
A. Make sure that unit has been properly lubricated and serviced.
B. Make sure Boom is not lashed down.
C. Make sure that all controls are in the neutral center position.
D. Make sure the wire rope is not frayed or damaged.
E. Ensure work area around crane is clear of personnel and equipment.
F.
Do not attempt to lift loads which exceed load chart ratings.
Operation
1.
Energize central hydraulic system (see Central Hydraulic System Operating Instructions).
a.
Swing Operation: To swing crane to the right, pull control/ever backward. To swing the crane to the left, push
the control lever forward.
b.
Telescope Operation: To extend the Boom, push the control lever forward. To retract the Boom, pull the
control lever back.
CAUTION
When extending boom observe block. It may be necessary to lower block to prevent two-blocking block.
c.
Winch Operation: To lower the hook, push the control lever forward. To hoist the hook, pull the control lever
back.
d.
Main Boom Operation: To lower the Main Boom, push the control lever forward. To raise the Main Boom pull
the control lever back.
Note: All control levers are attached to the crane spindle. Control levers are spring centered proportional control.
When levers are released they will automatically return to the neutral position, Moving the levers progressively
farther from the neutral position in either direction will increase the rate at which the controlled function operates.
Control levers should be operated smoothly
to prevent surging.
Placard 31. Cargo Crane
0067 00-40
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