KNOWN INFO
TEST OPTIONS
NO
YES
4.
REASON FOR QUESTION
Replace damaged air hose
and/or fittings (para 23-2).
FRONT BRAKE/REAR BRAKE
AIR pressure gages OK.
Air hoses and fittings from air
cleaner to air compressor OK.
Air hoses and fittings from air
compressor to air dryer OK.
POSSIBLE PROBLEMS
A leaking or damaged hose
or fitting may cause air system
to loose pressure or take an
excessive amount of time to
build up air pressure.
TM 9-2320-365-20-2
2-1720 Change 1
Soapy Water Leak Test and
Visual Inspection
Damaged air hose from air
dryer to wet tank.
Damaged air hose from wet
tank to air compressor.
Damaged air hoses from wet
tank to primary and secondary
air tanks.
Faulty check valves at primary
and secondary air tanks.
Faulty air dryer purge valve
and/or clogged desiccant
cartridge.
Faulty air compressor
governor.
Faulty air compressor.
Are air hose from air dryer
to wet tank and fittings
free from leaks or damage?
j1. AIR SYSTEM LOSES PRESSURE DURING OPERATION/SLOW, NO, OR INCORRECT AIR
PRESSURE BUILDUP (CONT)
