TM 5-5420-278-10
0058 00
0058 00-2
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Operator’s Mechanical Troubleshooting (Contd)
2. BAY WILL NOT FOLD AUTOMATICALLY DURING RETRIEVAL
Step 1. Check to see transverse upper couplings are unlatched.
Unlatch upper couplings (WP 0039 00).
Step 2. Check to see ponton swivel locks are disengaged (ramp bay only).
Disengage swivel locks (WP 0039 00).
Step 3. Check to see outer ponton locks are released (interior bay only).
Release outer ponton locks (WP 0039 00).
Step 4. Check for loose or broken cable assembly.
If cable assembly is loose or broken, notify unit maintenance.
Step 5. Check for obstructions or jamming caused by gravel, rocks, mud,
or debris lodged in unfolding stabilizer mounting brackets.
Free and remove obstructions.
Step 6. Check for broken torsion bar turnbuckle (ramp bay only).
If torsion bar turnbuckle is suspected broken, notify unit
maintenance.
END OF TESTING
3. FOLDLOCK WILL NOT ENGAGE OR HOLD WHEN ENGAGED
Step 1. Check for bent foldlock spring holder or damaged springs (ramp bay
only).
Straighten foldlock spring holder if bent, and notify unit
maintenance if springs or spring holder are damaged.
Step 2. Check for missing or damaged foldlock springs (interior bay only).
If springs are missing or damaged, notify unit maintenance.
Step 3. Check for bent foldlock lever and support brackets.
Straighten support brackets if bent or binding, and notify unit
maintenance if support brackets or lever are damaged.
Step 4. Check foldlock catch on outer ponton for wear or if bent or damaged.
If catch appears to be worn, bent, or damaged, notify unit
maintenance.
END OF TESTING
