TM 5-5420-234-14&P
4-12. UNIT TROUBLESHOOTING (continued).
14. MAIN FRAME DOES NOT UNLOAD IN MANUAL MODE (MODEL A ONLY)
(continued).
CONTINUITY TEST
(1) Open hydraulic cabinet cover.
(2) Loosen four screws on main junction
box cover and open cover.
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 sys-
tem.
(3) Set multimeter to ohms position.
NOTE
A reading of infinity indicates an open
WIRING REMOVED FOR CLARITY
circuit.
(4) Connect multimeter to terminals at
each end of wire, and check
multimeter for continuity. Check
between main junction box connector
(J4), position F, and terminal strip,
position 19. Also check between main
junction box connector (J4), position
MAIN JUNCTION BOX
Q, and terminal strip, position 20.
CONNECTOR (J4)
Change 1
4-285
