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TM 9-2320-364-20-3
2-2214
5. AIR PRESSURE DROPS RAPIDLY AFTER ENGINE SHUTDOWN.
INITIAL SETUP
1.
Are drain valves on air
reservoirs free of leaks and
damage?
START
YES
NO
Nothing.
Leaking or damaged drain
valves.
Leaking or damaged air lines
or fittings.
Leaking or damaged air inlet
check valves.
Cracked or damaged air
reservoirs.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Visual inspection.
Audible inspection.
Air pressure will drop rapidly
after engine shutdown if drain
valves on air reservoirs are
leaking or damaged.
2-27. AIR SYSTEM TROUBLESHOOTING (CONT).
Tools and Special Tools
Tool Kit, General Mechanic’s: Automotive
(Item 74, Appendix G)
Equipment Condition
Engine OFF, (TM 9-2320-364-10)
Parking brakes applied, (TM 9-2320-364-10)
Wheels chocked, (TM 9-2320-364-10)
References
TM 9-2320-364-10
WARNING
Replace drain
valve(s)
(Para 12-27
through 12-31).
Verify repair, go to
Step 5 of this Fault.
Materials/Parts
Solution, Soap (Item 86, Appendix C)
NOTE
Soap and water solution will be used to visually check for leaks.
Read WARNING
on Page 2-2215
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