TM 1-4220-250-12&P
SECTION IV. TROUBLESHOOTING
Table 4-2 lists common malfunctions that you may find with your equipment. Perform the tests, inspections, and corrective
actions in the order they appear in the table.
Table 4-2. LRU-18/U Troubleshooting Procedures.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. RAFT DOES NOT PROPERLY INFLATE.
Step I.
Inspect CO2 cylinder for proper charge and thread seating. If defective, replace CO2 cylinder.
(Para 4.6.2).
Step 2.
Inspect inflation valve assembly for corrosion, piercing pin function, and gasket installation.
Remove, repair, or replace inflation valve assembly (Para 4.8.4).
Step 3.
Inspect oral inflation valve assembly for foreign matter or damage.
Remove foreign matter from inflation valve. If valve is damaged, replace it (Para 4.8.3).
Step 4.
Inspect raft for obvious defects, such as cuts, tears, and ruptured seams.
Patch raft as needed (Para 4.8.2).
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