TM 9-4940-568-20
2-190
Table 2-21. Crane Troubleshooting (CONT).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
10. CRANE WILL NOT SWING COUNTERCLOCKWISE USING REMOTE CONTROL
(CONT).
Test 7.
Check for continuity between terminal strip, position 9, and swing CCW solenoid
connector, terminal 1.
If no continuity is found, repair white wire between junction box terminal strip,
position 9, and swing CCW solenoid connector, terminal 1. Refer to paragraph
3-16 in this manual.
If continuity is found, go to Test 8.
Test 8.
Check for continuity between swing CCW solenoid connector, terminal 2, and
known good ground.
If no continuity is found, repair swing CCW solenoid ground circuit. Refer to
paragraph 3-16 in this manual.
If continuity is found, go to Test 9.
Test 9.
Perform resistance check of solenoid coil. Resistance should be between 23.7 and
26.3 ohms from terminal 1 and terminal 2.
If coil resistance is not within specifications, Notify Supervisor.
END OF TEST
