TM 5-5420-280-23&P
0006 00
Bridge Mechanical System Troubleshooting (Contd).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
4. SLIDE LOCK MECHANISM WILL NOT LOCK
Step 1. Check if bridge quarters are fully extended.
Extend bridge quarters. Refer to TM 5-5420-280-10.
Step 2. Check for broken or missing spring.
Replace broken or missing spring. Refer to WP 0026 00.
Step 3. Check for broken or missing locking lever clevises.
Replace broken or missing locking lever clevises. Refer to WP 0026 00.
Step 4. Check for bent or missing locking rods.
Replace bent or missing locking rods. Refer to WP 0026 00.
END OF TESTING
5. SLIDE LOCK MECHANISM WILL NOT UNLOCK
Step 1. Check for broken or missing locking lever clevises.
Replace broken or missing locking lever clevises. Refer to WP 0026 00.
Step 2. Check for bent or broken locking rods.
Replace bent or broken locking rods. Refer to WP 0026 00.
END OF TESTING
6. BRIDGE SUPPORT WHEELS WILL NOT ROTATE
Step 1. Check for worn or damaged bearings.
Replace worn or damaged bearings. Refer to WP 0023 00.
Step 2. Check for missing or damaged wheel hub or tire.
Replace missing or damaged wheel hub or tire. Refer to WP 0023 00.
END OF TESTING
7. FASTENING RODS WILL NOT SECURE BRIDGE TO PALLET
Step 1. Check for mud debris or damaged threads on fastening rod drive screw.
a. Clean mud or debris from threads on drive screw.
b. Clean and lubricate threads on drive screw or fastening rods. Refer to WP 0016 00.
Step 2. Check for proper adjustment of fastening rods.
Adjust fastening rods. Refer to TM 5-5420-280-10.
Step 3. Check for missing or damaged tiedown strap bracket pins.
Repair or replace missing or damaged tiedown strap brackets or pins on bridge transverse
girders. Refer to WP 0019 00 or WP 0043 00.
END OF TESTING
