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TM 9-2320-364-20-2
2-1850
13. SERVICE BRAKES ON AXLES NO. 4 AND NO. 5 DO NOT RELEASE (CONT).
2.
Are air lines 2143, 2144, 2015,
2017, 2016 and 2018 free from
crimps?
Replace air lines
(Para 12-36 and see
schematic Fig 2-46).
Verify repair, go to
Step 6 of this Fault.
YES
NO
Brakes on Axle No. 3 operate
correctly.
Brakes on Axles No. 4 and
No. 5 fail to release.
Air lines crimped.
Service relay valve No. 3
faulty.
Air chambers faulty.
Brakes faulty.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Visual inspection.
If air lines are crimped, air will
not exhaust from air chamber
and brakes will not release.
WARNING
Read WARNING
on Page 2-1851
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