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TM 9-2320-364-10
2-370
2-31. MATERIAL HANDLING CRANE (MHC) OPERATION
(REMOTE CONTROLS) (CONT).
When operating two control levers at the same time, if one
function is held wide open and “dead-headed” (i.e., cylinder is
fully extended) and another function is operated, the second
function can operate at a greater than normal speed, which
could cause loss of control and serious injury or death to
personnel.
Keep hook block at least 2 ft. (0.61 m) from end of boom. If
hook block hits end of boom it may damage cable or hook
block and crane will lose control functions. Lower hook
block and wait six seconds for power to return. Check crane
for damage.
NOTE
When crane is overloaded, the overload shutdown system will
automatically shut off power to Telescope Boom Out, Boom
Up, Boom Down and Hoist Up functions.
TELESCOPE and HOIST control levers should be operated at
same time.
Crane movement from one lever may be slower than other
when operating two levers together.
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