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TM 9-2320-364-20-3
2-2218
5. AIR PRESSURE DROPS RAPIDLY AFTER ENGINE SHUTDOWN (CONT).
3.
Are inlet check valves free of
leaks or damage?
Replace inlet check
valves (Para 12-27
through 12-31).
Verify repair, go to
Step 5 of this Fault.
YES
NO
Drain valves OK.
Air lines and fittings OK.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Air inlet check valve inspection.
Air pressure will drop rapidly
after engine shut down if inlet
check valves are leaking or
damaged.
WARNING
Leaking or damaged air inlet
check valves.
Cracked or damage air
reservoirs.
Read WARNING
on Page 2-2219
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