MAIN
POWER
TM 9-4940-568-20
2-180
Table 2-21. Crane Troubleshooting (CONT).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
9. CRANE WILL NOT SWING CLOCKWISE USING REMOTE CONTROL (CONT).
Test 5.
Connect the remote control cable to the remote control unit and remote control
hook-up connector on crane sub-frame. Turn MAIN POWER switch to ON position.
Check for 24 volts from controller harness, white wire, with controller lever to CW
position to known good ground. Turn MAIN POWER switch to OFF position.
If 24 volts are not present, replace controller circuit card. Refer to paragraph 5-12
in this manual.
If 24 volts are present, reassemble remote control unit and go to Test 6.
