j4. NO AIR PRESSURE PRESENT AT REAR GLADHAND(S) (CONT)
TEST OPTIONS
KNOWN INFO
Visual Inspection
REASON FOR QUESTION
Is air present at
air brake protecting valve
supply port FV2?
If air is present, air brake
protecting valve is faulty.
NO
YES
Go to step 17
of this fault.
13.
Replace air brake
protecting valve
(para 11-16).
Vehicle park and service brakes
OK.
Air hoses free from kinks.
Emergency gladhand OK.
Air hose 126 OK.
Service gladhand OK.
Air hose 124 OK.
Air hose 102 OK.
Air hose 108 OK.
TRAILER AIR SUPPLY valve
OK.
Air hose 104 OK.
Air hose 265 OK.
Air hose 247 OK.
Load sensing valve control port
tee fitting OK.
Service gladhand two-way
check valve OK.
Air hose 244 OK.
POSSIBLE PROBLEMS
Faulty air brake protecting
valve.
Faulty air hose 120.
Faulty inversion valve control
port 90-degree fitting.
Faulty air hose 117.
TM 9-2320-365-20-2
2-1742.20 Change 1
