TM 5-5420-234-14&P
4-12. UNIT TROUBLESHOOTING (continued).
16. MAIN FRAME, HOOK ARM, AND WINCH DO NOT OPERATE (continued).
CONTINUITY TEST
CAUTION
Electrical power must be shut
off from circuit before continuity
WIRING REMOVED FOR CLARITY
can be checked. Failure to
comply with this caution may
result in damage to test
equipment or electrical
system.
(1) Loosen connector screw and remove
connector from the free flow valve
solenoid.
(2) Set multimeter to ohms position.
NOTE
A reading of infinity indicates an
open circuit.
Junction box terminal 23 is
connected to one side of the
solenoid; terminal 24 is connected
to the other side.
POSITION 1
(3) Connect multimeter leads to each end
of wire and check multimeter for
continuity. Check for continuity
between solenoid connector, position
1, and terminal strip, position 23.
(4) Repeat Step 3 to check for continuity
between position 2 in the connector
and terminal strip, position 24.
FREE FLOW
VALVE SOLENOID
HARNESS
FREE FLOW
VALVE SOLENOID
POSITION 2
4-379
