TM 5-5420-280-23&P
0006 00
Pallet Mechanical System Troubleshooting (Contd).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. SUPPORTING CYLINDER WINCH WILL NOT LOWER
Step 1. Check that retaining pin is removed from connecting link.
Remove retaining pin from connecting link. Refer to TM 5-5420-280-10.
Step 2. Check for binding winch strap.
Remove winch strap pin clevis and repair strap. Refer to WP 0039 00.
Step 3. Check that clutch drive is functioning properly.
a. Disassemble, clean, and check for cracked clutch disks. Do not oil clutch disks.
b. Replace winch assembly. Refer to WP 0039 00.
END OF TESTING
2. SUPPORTING CYLINDER WINCH WILL NOT LIFT
Step 1. Check for broken winch strap.
Replace broken winch strap. Refer to WP 0039 00.
Step 2. Check that clutch drive is functioning properly.
a. Disassemble, clean, and check for cracked clutch disks. Do not oil clutch disks.
b. Replace winch assembly. Refer to WP 0039 00.
END OF TESTING
3. STEERING WHEELS WILL NOT TURN
NOTE
Steering radius is very limited.
Step 1. Check that both retaining pins are removed from steering levers.
Remove retaining pins from steering levers. Refer to TM 5-5420-280-10.
Step 2. Check steering wheels for obstruction or jamming caused by rocks or debris.
Clean obstruction or debris from steering wheels. Refer to TM 5-5420-280-10.
Step 3. Check for bent or broken tie-rod or steering links.
Replace bent or broken tie-rod or steering links. Refer to WP 0034 00.
Step 4. Check for binding bellcranks or steering levers.
Grease bellcranks and steering levers. Refer to WP 0016 00.
END OF TESTING
4. PALLET WHEEL HUB WILL NOT ROTATE
Step 1. Check for obstruction or jamming caused by rocks or debris between wheel and bridge
pallet.
Clean obstruction or debris from between wheel and bridge pallet. Refer to
TM 5-5420-280-10.
Step 2. Check for worn or damaged wheel bearings.
Replace worn or damaged wheel bearings. Refer to WP 0037 00.
END OF TESTING
