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TM 9-2320-364-20-2
2-1812
9. SERVICE BRAKES ON AXLES NO. 3 THROUGH NO. 5 DO NOT RELEASE.
INITIAL SETUP
1.
Are air lines 2489, 2684, 2668,
2639, 2669, 2660, 2011 and
2014 free from crimps?
Replace air lines
(Para 12-36 and
schematic Fig 2-45
and 2-46).
Verify repair, go to
Step 5 of this Fault.
START
YES
NO
Brakes adjusted.
Air lines crimped.
Brake treadle valve faulty.
Front double check valve (top)
faulty.
Quick release valve faulty.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Visual inspection.
If air lines are crimped, air
pressure will not be released
and will prevent brakes from
releasing.
2-24. BRAKES SYSTEM TROUBLESHOOTING (CONT).
Tools and Special Tools
Tool Kit, General Mechanic’s: Automotive
(Item 74, Appendix G)
Pressure Test Kit (Item 50, Appendix G)
Equipment Condition
Engine OFF, (TM 9-2320-364-10)
Parking brake applied, (TM 9-2320-364-10)
Wheels chocked, (TM 9-2320-364-10)
References
TM 9-2320-364-10
WARNING
Personnel Required
Two
Read WARNING
on Page 2-1813
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