j4. NO AIR PRESSURE PRESENT AT REAR GLADHAND(S) (CONT)
KNOWN INFO
TEST OPTIONS
Visual inspection
REASON FOR QUESTION
YES
NO
Is air present at
air brake protecting valve
delivery port TRLR E?
Replace air brake protecting
valve (para 11-16).
Replace air hose
126 (para 11-19).
4.
If air is not present, air brake
protecting valve is faulty. If air
is present, air hose 126 is
faulty.
Vehicle park and service brakes
OK.
Air hoses free from kinks.
Emergency gladhand OK.
Air hose 124 OK.
Air hose 102 OK.
Air hose 108 OK.
TRAILER AIR SUPPLY valve
OK.
Air hose 104 OK.
Service gladhand 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.
Air hose 120 OK.
Inversion valve control port
90-degree fitting OK.
Air hose 117 OK.
Faulty air hose 126.
Faulty air brake protecting
valve.
POSSIBLE PROBLEMS
TM 9-2320-365-20-2
2-1742.2 Change 1