TM 5-5420-234-14&P
4-12. UNIT TROUBLESHOOTING (continued).
11. HOOK ARM DOES NOT LOAD IN MANUAL MODE (MODEL A ONLY) (continued).
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 electrical system.
(1) Remove main junction box connector
(P4) from main junction box.
WIRING REMOVED FOR CLARITY
(2) Set multimeter to ohms position.
NOTE
MAIN JUNCTION BOX
CONNECTOR (J4)
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 J,
and terminal strip, position 17. Also
check between main junction box
connector (J4), position Q,and terminal
strip, position 18.
MAIN JUNCTION BOX
CONNECTOR (P4)
4-207
Change 1
4
