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TM 5-4210-233-14&P-1
Table 3-3. Operator Troubleshooting - Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
VALVES
1
AIR OPERATED VALVE FAILS TO OPEN OR CLOSE
Step 1. Check correct switching sequence.
Carry out correct switching sequence (see para 2-13 .).
Step 2. Check air leaking from switch or valve connections.
Tighten connection.
2
VALVES LEAKING WATER/AGENT
Check that ail valves are not closed.
Close valves.
WATER PIPING
1
WATER/AGENT REMAINS IN PIPING AFTER DRAIN OPENED
Check drain valve outlet.
Clean dirt/blockage from drain hole.
DISCHARGE HOSE
1
DISCHARGE HOSE WON'T DE-PRESSURIZE
Check drain valve.
Clean dirt/blockage from drain hole.
3-14
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