CAUTION
•
Do not jerk HOIST control lever or load will bounce causing possible
damage to crane or load.
•
Do not operate crane with boom below horizontal when there is a load
on hook.
•
For M977, maximum load limit with boom length under 9 ft. (2.75 m)
is 4500 lbs (2 043 kg). Maximum load limit with boom extended over
9 ft. (2.75 m) is 2500 lbs (1 135 kg).
•
For M985, maximum load limit is 5400 lbs (2 452 kg) for entire boom
reach.
NOTE
•
When M977 and M985 crane is overloaded, the overload systems
will automatically shut off power to telescope boom out, raise boom,
or hoist load any higher.
•
The M977 overload system will also prevent lowering load to ground
or other supporting surface. All crane functions will be restored in
approximately six seconds.
3.
Move HOIST control lever (3) in UP position to lift load. Move BOOM control lever (6)
in UP position to raise load higher.
4.
Move HOIST control lever (3) in DOWN position to lower load. Move BOOM control
lever (6) in DOWN position to lower load further.
5.
Shutdown crane.
SHUTDOWN CRANE
NOTE
Steps (1) through (3) are needed only if REMOTE CONTROL UNIT was
used during operation.
1.
Set ON/OFF POWER switch (1) to ON position.
TM 9-2320-343-10
0038
0038-19