TM 5-5420-234-14&P
4-12. UNIT TROUBLESHOOTING (continued).
16. MAIN FRAME, HOOK ARM, AND WINCH DO NOT OPERATE (continued).
CONTINUITY TEST
(1) Open hydraulic cabinet cover.
(2) Loosen four screws on main junction
box cover and open cover.
(3) If necessary, remove remote control
cable from linking harness connector.
CAUTION
Electrical power must be shut off
WIRING REMOVED FOR CLARITY
from circuit before continuity can
be checked. Failure to comply with
this caution may result in damage
to test equipment or electrical sys-
tem.
(4) Set multimeter to ohms position.
NOTE
A reading of infinity indicates an open
circuit.
(5) Connect multimeter to terminals at
RH LINKING
each end of wire and check multimeter
HARNESS
for continuity. Check between terminal
CONNECTOR (J82B)
C on connector and position 7 in
junction box. Next, check between
terminal J on connector and position
23 in junction box.
NOTE
Any reading besides infinity indicates
a grounded wire.
(6) Check for grounded wiring by
connecting one multimeter lead to
each terminal and the other lead to
chassis ground.
LH LINKING
HARNESS
CONNECTOR (J8A)
4-359
