TM 5-5420-234-14&P
4-12. UNIT TROUBLESHOOTING (continued).
12. HOOK ARM DOES NOT UNLOAD IN MANUAL MODE (MODEL A ONLY) (continued).
MAIN JUNCTION BOX
CONNECTOR (J4)
CONTINUITY TEST
CAUTION
Electrical power must be shut off
from circuit before continuity can
be checked. Failure to comply
with this caution may result in
damage to test equipment or elec-
trical system.
(1) Remove main junction box connector
(P4) from main junction box.
(2) Set multimeter to ohms position.
MAIN JUNCTION BOX
NOTE
CONNECTOR (P4)
A reading of infinity indicates an
open circuit.
(3) Connect multimeter to terminals at
each end of wire, and check
multimeter for continuity. Check
between main junction box connector
(J4), position G, and terminal strip
position 13. Also check between
main junction box connector (J4),
position Q, and terminal strip,
position 14.
WIRING REMOVED FOR CLARITY
Change 1
4-229
