TM 1-1520-240-MTF
4-8
b. Position scale below lever knob. Force
required to move lever 4 to 5 lb.
D. WINCH OPERATIONAL TEST.
1-29.
Reference:
TM 55-1520-240-T
1. Perform an operational test of the cargo hoisting
system as follows:
a. With the APU running, apply hydraulic
pressure and electrical power to the
helicopter.
b. Route the winch cable in the hoist
configuration.
(Refer
to
TM
55-1520-240-10.)
c. Plug in the cable cutter at sta 120 or 325.
d. Check the HOIST CONT circuit breaker on
the No. 1 pdp is closed. Set the HOIST
MASTER switch REMOTE.
e. Set the shifting lever on the winch to
RESCUE. (If the shift lever fails to operate
properly, replace the winch.) Operate the
winch from either of the auxiliary hoist
operator’s control panels. Connect the
winch control from to the panel using the
extension cord.
f. Press the WINCH ARMING TRIGGER and
rotate the WINCH CABLE switch to OUT.
Continue to operate the winch until it stops.
Check that the out-limit switch stops the
winch when 21/2 wraps of the first layer of
cable remain on the drum. If the winch does
not stop within the specified limit, readjust
the
out-limit
switch.
(Refer
to
TM
55-1520-240-23, Ch. 14.) If the time
required to reel the cable fully OUT is not
about 90 seconds, replace the winch.
