TEST OPTIONS
Visual inspection
REASON FOR QUESTION
KNOWN INFO
Go to step 15
of this fault.
NO
YES
TM 9-2320-366-20-2
2-1976.22
Change 1
j4. NO AIR PRESSURE PRESENT AT REAR GLADHAND(S)
(ALL MODELS EXCEPT M1088) (CONT)
If air is present, air hose 230
is faulty.
14.
Vehicle park and service brakes
OK.
Air hoses free from kinks.
Emergency gladhand OK.
Air hose 155, 157, or 167
OK.
Service gladhand OK.
Air hose 149, 150, or 151
OK.
Air hose 102 OK.
Air hose 108 OK.
TRAILER AIR SUPPLY valve
OK.
Air hose 104 OK.
Air hose 241, 253, or 254
OK.
Air brake protecting valve OK.
Air hose 120 OK.
Inversion valve control port
90-degree fitting OK.
Air hose 128, 130, or 132
OK.
Faulty air hose 230.
Faulty load sensing valve
control port tee fitting.
Faulty air hose 240 or 243.
Faulty booster valve.
Faulty service gladhand
two-way check valve.
Faulty air hose 145.
POSSIBLE PROBLEMS
Replace air hose
230 (para 11-21).
Is air present at
load sensing valve
control port tee fitting
delivery port?