TM 5-5420-280-10
0035 00
Bridge Mechanical Troubleshooting (Contd).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Remove obstruction or clean debris from lower coupling, receptacle, and
Step 3. Check for broken or missing lower coupling, receptacle, or lock lever.
If coupling, receptacle, or lock levers are broken or missing, notify field
maintenance.
Step 4. Check contact of limit switch or if limit switch arm is bent or missing. If
contact is insufficient to activate switch or switch arm is bent or
missing, notify field maintenance.
END OF TESTING
4. SLIDE LOCK MECHANISM WILL NOT UNLOCK
Step 1. Check for obstruction or jamming caused by rocks or debris.
Remove obstruction or clean debris from slide lock mechanism.
Step 2. Check for broken or missing locking lever clevises.
If locking lever clevises are broken or missing, notify field maintenance.
Step 3. Check for bent or broken locking rods.
If locking rods are bent or broken, notify field maintenance.
END OF TESTING
5. SLIDE LOCK MECHANISM WILL NOT LOCK
Step 1. Check if bridge quarters are fully extended.
Step 2. Check for broken or missing spring.
If spring is broken or missing, notify field maintenance.
Step 3. Check for broken or missing locking lever clevises.
If locking lever clevises are broken or missing, notify field maintenance.
Step 4. Check for bent or missing locking rods.
If locking rods are bent or missing, notify field maintenance.
END OF TESTING
6. BRIDGE SUPPORT WHEELS WILL NOT ROTATE
Check for missing or damaged wheel hub or tire.
If wheel hub or tire is missing or damaged, notify field maintenance.
END OF TESTING