TM 5-5420-278-10
0058 00
0058 00-5
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Operator’s Mechanical Troubleshooting (Contd)
9.
TRAVEL LATCH WILL NOT RELEASE
Step 1. Check for bent or damaged upper and lower striker receptacles,
latch bar, mounting brackets, or missing springs.
If parts are missing, bent, or damaged, notify unit maintenance.
Step 2. Check for clearance between pins on latch bar and upper and lower
striker receptacles.
a. If no clearance is evident, notify unit maintenance.
b. If excessive clearance is observed, notify unit maintenance.
END OF TESTING
10.UPPER COUPLING WILL NOT ENGAGE IN RECEPTACLE BLOCK
Step 1. Check for obstructions such as rocks or debris lodged in receptacle
blocks.
Free and remove debris from area.
Step 2. Check gap between inner-to-inner pontons.
Close gap using roadway tool and crowbar until inner-to-inner
ponton upper couplings can be engaged.
Step 3. Check alignment during bay-to-bay connection.
a. Level roadway surface of adjoining bays using two coupling
devices.
b. Draw adjoining bays closer together using ropes connected to
belay cleats (WP 0033 00).
Step 4. Check for bent lever or heavily worn receptacle block.
If parts appear bent or heavily worn, notify unit maintenance.
END OF TESTING
11.UPPER COUPLING WILL NOT RELEASE FROM RECEPTACLE BLOCK
Step 1. Check to see if lower lock-drive pins were inadvertently disengaged
before the upper couplings.
Use grip hoist and pull bays together until longitudinal upper
couplings can be released (WP 0037 00 and WP 0038 00).
Step 2. Check for obstructions between inner-to-inner pontons.
Remove obstructions and close gap using roadway tool and crowbar
until transverse upper couplings can be released (WP 0039 00).
END OF TESTING
