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TM 9-2320-364-20-2
2-1804
8. SERVICE BRAKES ON AXLES NO. 3 THROUGH NO. 5 DO NOT APPLY.
INITIAL SETUP
1.
Are air lines 2489 and 2684
free from crimps and/or leaks
and are fittings and valves
free of leaks?
Replace air lines
and/or tighten/replace
fittings and/or replace
valves (Para 12-36,
12-4, 12-11, 12-39
and see schematic
Fig 2-45 and 2-46).
Verify repair, go to
Step 5 of this Fault.
START
YES
NO
Brakes adjusted.
Air lines crimped or leaking
and/or fittings, valves
leaking.
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.
Audible inspection.
If air lines and/or fittings or
valves are leaking, loss of air
pressure will prevent brakes
from applying.
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)
Personnel Required
Two
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
Materials/Parts
Locknuts (6) (Item 110, Appendix F)
Read WARNING
on Page 2-1805
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