TM 5-5420-278-24&P
0010 00
0010 00-1
UNIT TROUBLESHOOTING
IMPROVED RIBBON BRIDGE (IRB)
RAMP BAY M16
NSN 5420-01-470-5825 P/N 12478918;
INTERIOR BAY M17
NSN 5420-01-470-5824 P/N 12478919.
MECHANICAL TROUBLESHOOTING
NOTE
Refer to the general instructions in Introduction to
Troubleshooting, WP 0007 00, prior to performing mechanical
troubleshooting.
1.
BAY WILL NOT UNFOLD AUTOMATICALLY WHEN LAUNCHED
Step 1. Check for loose or broken cable assemblies.
Step 2. Check to see all foldlocks and travel latches are unlatched.
Unlatch foldlock and/or travel latch levers (TM 5-5420-278-10).
Step 3. Check travel latch for damage (malfunction 9).
Step 4. Check for obstructions or jamming caused by rocks or debris.
Step 5. Check unfolding stabilizers for damage (WP 0024 00 or WP 0043 00).
a. If inner ponton rail brackets or connecting links are bent or damaged, replace damaged
parts (WP 0024 00). If link hinges (interior bay only) are damaged, replace damaged
parts (WP 0043 00).
b. If stabilizer bar, levers, or straight pins are bent or broken, straighten or replace
damaged parts (WP 0024 00 or WP 0043 00).
Step 6. Check for broken torsion bar.
If torsion bar lever turnbuckle is loose or torsion bar lever can be moved by hand, torsion
bar is broken.
Repair or replace broken torsion bar (WP 0022 00).
END OF TESTING
Unit Mechanical Troubleshooting
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
