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Page Title:
AIR SYSTEM PRESSURE BUILDS UP MORE THAN 120 PSI (827 KPA) (COMPRESSOR FAILS TO UNLOAD) (cont) |
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 TM 9-2320-366-20-2
j5. AIR SYSTEM PRESSURE BUILDS UP MORE THAN 120 PSI (827 KPA)
(COMPRESSOR FAILS TO UNLOAD) (CONT)
KNOWN INFO
TEST OPTIONS
2.
Visual Inspection
FRONT BRAKE/REAR BRAKE
REASON FOR QUESTION
AIR pressure gage reads above
Does air escape from air
120 psi.
compressor to air dryer
Air compressor will fail to
Air hose from wet tank to air
purge valve air hose?
unload if air compressor to
compressor governor OK.
purge valve air hose is
POSSIBLE PROBLEMS
blocked.
Blocked governor air hose.
Faulty air compressor
NO
governor.
Faulty purge valve.
Clear or replace air hose from
YES
air compressor to purge valve
(para 23-2).
KNOWN INFO
TEST OPTIONS
3.
Visual Inspection
FRONT BRAKE/REAR BRAKE
REASON FOR QUESTION
AIR pressure gage reads
Is air present from air
above 120 psi.
compressor to purge valve?
If air is not present from air
Air hose from wet OK.
compressor, air compressor
Governor air hose OK.
governor is faulty. If air is
POSSIBLE PROBLEMS
present air dryer purge valve
Faulty air compressor
is faulty.
governor.
Faulty purge valve.
NO
Adjust or replace air
YES
compressor governor
(para 11-31).
Service air dryer
(para 23-11).
2-1980
Change 1
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