TM 9-4940-568-34
2-51
Table 2-7. Crane Troubleshooting (CONT).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Test 3.
Remove two screws, lockwashers, and swing drive orbit motor from swing drive gear
reducer. Start FRS. Operate swing drive orbit motor using SWING control lever.
If swing motor operates, go to Test 4.
If swing motor does not operate, replace swing drive orbit motor. Refer to
paragraph 3-12 or 6-4.
SWING
CONTROL
LEVER
SWING DRIVE
ORBIT MOTOR
