48
29
26
46
45
43
44
47
TM 9-4940-568-10
2-138
2-29. MATERIAL HANDLING CRANE (MHC) OPERATION (CONT).
Do not allow excessive slack to build-up when paying out cable. Failure to comply may
result in damage to equipment.
Do not allow the weight of the hook to be removed from the cable. Failure to comply may
result in damage to equipment.
Use only a straight pull when lifting load. The crane structures and associated hydraulic
systems are to be used only for vertical lifting of a load, any sustained loading which
results in the hoist cable deviating from the vertical in any direction (attempting to pull or
drag a load) is specifically prohibited. Failure to comply may result in damage to
equipment.
Telescope boom within range determined in Step (1). Failure to comply may result in
damage to equipment.
(3)
Operate SWING lever (46) and TELESCOPE lever (45) to center end of boom (43) directly over load.
(4)
Remove safety pin (47) from hook assembly latch (48).
(5)
Operate HOIST lever (26) to pay in or pay out cable (44) and connect hook assembly (29) to load.
Ensure that hook latch is closed and safety pin is installed before attempting to raise
load. A hook latch that is not closed and locked in position could allow load to become
disengaged from hook, allowing load to fall. Injury or death could result.
(6)
Install safety pin (47) in hook assembly latch (48).
