TM 9-2320-279-10-2
M984E1 General Operating Procedures (Cont)
2-63. M984E1 CRANE OPERATION (MANUAL CONTROLS) (CONT).
CAUTION
Keep hook block at least 1 ft (30 cm) from end of boom.
If hook block hits end of boom it may damage cable or
hook block and crane will lose power. Wait six seconds
for power to return and check crane for damage.
NOTE
When crane is overloaded, M984E1 overload system
q
will automatically shut off power to telescope boom
out, raise or lower boom, or hoist load any higher.
Overload condition can be corrected by lowering load
to ground or other supporting surface. All crane
functions will be restored in approximately six
seconds.
TELESCOPE and HOIST control levers should be
q
operated at same time.
Crane movement from one lever may be slower than
q
other when operating two levers together.
(3) Move TELESCOPE control lever (3) to OUT position to extend boom (2)
and move HOIST control lever (4) to DOWN position to pay out
cable (5).
2-86
