Perform Air System Troubleshooting
J1. Air System Loses Pressure During
Operation/Slow Air Pressure Buildup.
KNOWN INFO
TEST OPTIONS
Visual inspection
REASON FOR QUESTION
If leak is present, front axle
quick release valve is faulty.
NO
YES
Faulty rear gladhand(s).
POSSIBLE PROBLEMS
Air tanks pressurized.
Front axle quick release valve
OK.
Does air escape from front
rear gladhand(s) when
service brakes are applied?
YES
NO
Does air escape from front
axle quick release valve when
service brakes are applied?
WARNING
Read WARNING
on following page.
START
KNOWN INFO
Air tanks pressurized.
POSSIBLE PROBLEMS
Faulty front axle quick release
valve.
Faulty rear gladhand(s).
TEST OPTIONS
Visual inspection
REASON FOR QUESTION
If leak is present, front axle
quick release valve is faulty.
Replace rear
gladhand(s)
(para 11-22).
Replace front axle quick
release valve (para 11-15).
Tools and Special Tools
Tool Kit, Genl Mech (Item 44 Appendix C)
Goggles, Industrial (Item 15, Appendix C)
2-1712 Change 1
i9. BRAKE SYSTEM LOSES AIR WHEN SERVICE BRAKES ARE APPLIED
INITIAL SETUP
Equipment Conditions
Engine shut down (TM 9-2320-365-10).
TM 9-2320-365-20-2
1.
2.