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TM 9-2320-364-20-2
2-1854
13. SERVICE BRAKES ON AXLES NO. 4 AND NO. 5 DO NOT RELEASE (CONT).
4.
Does air chamber operate
correctly?
Replace air chamber
(Para 12-10).
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 OK.
Service relay valve No. 3
OK.
Air chambers faulty.
Brakes faulty.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Operation test.
If air chamber rods bind as it
travels out of chamber, they will
not permit brake to release.
WARNING
5.
Are brake shoes and wedges
free of damage?
Replace brake shoes
and/or wedges
(Para 12-2).
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 OK.
Service relay valve No. 3
OK.
Air chambers OK.
Brakes faulty.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Visual inspection.
If brake components are faulty,
they will prevent brakes from
releasing.
WARNING
Read WARNING
on Page 2-1855
Read WARNING
on Page 2-1855
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