JUNCTION
BOX
HOIST DOWN
SOLENOID
CONNECTOR
TERMINAL 2
TERMINAL 1
TM 9-4940-568-20
2-133
Table 2-21. Crane Troubleshooting (CONT).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Test 7.
Loosen screw and remove connector hoist DOWN solenoid. Check for continuity
between terminal strip, position 16, and hoist DOWN solenoid connector, position 1.
If no continuity is found, repair white wire between junction box terminal strip,
position 16, and hoist DOWN solenoid. Refer to paragraph 3-16 in this manual.
If continuity is found, go to Test 8.
Test 8.
Check for continuity between hoist DOWN solenoid connector, position 2, and
known good ground.
If no continuity is found, repair hoist DOWN solenoid ground circuit.
If continuity is found, go to Test 9.
