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Page Title:
SERVICE BRAKES ON ALL AXLES DO NOT APPLY OR APPLY SLOWLY. (Cont) |
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 TM 9-2330-385-14
5. SERVICE BRAKES ON ALL AXLES DO NOT APPLY OR APPLY SLOWLY (CONT).
3.
TEST OPTIONS
KNOWN INFO
WARNING
Read WARNING
Truck air system OK.
Pressure test.
on Page 4-277
Air lines, fittings, load sensing
valve and quick release valve
REASON FOR QUESTION
OK (free of leaks).
Load sensing valve OK.
Does quick release valve
If quick release valve fails
opened, lack of air pressure will
supply 60 5 psi
POSSIBLE PROBLEMS
prevent application of brakes.
(414 34 kPa) to front brake
relay valve?
Quick release valve faulty.
Replace quick release
valve (Para 4-51).
NO
Verify repair, go to
Step 4 of this Fault.
YES
4.
KNOWN INFO
TEST OPTIONS
Truck air system OK.
Do service brakes apply
Verify repair.
Air lines, fittings, load sensing
correctly?
valve and quick release valve
REASON FOR QUESTION
OK (free of leaks).
Load sensing valve OK.
If service brakes apply correctly,
Quick release valve OK.
fault has been corrected.
POSSIBLE PROBLEMS
Fault not corrected.
Notify DS
NO
Maintenance.
YES
Fault corrected.
4-276
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