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TM 9-2320-364-20-2
2-1842
12. SERVICE BRAKES ON AXLES NO. 4 AND NO. 5 DO NOT APPLY (CONT).
3.
Does service relay valve No. 3
operate correctly?
Replace service
relay valve No. 3
(Para 12-15).
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 apply.
Air lines free of crimps or leaks
and fittings, valves and air
chambers free of leaks.
Service relay valve No. 3
faulty.
Air chambers faulty.
Brakes faulty.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Service relay valve No. 3 test.
If service relay valve No. 3 fails
closed, brakes on Axles No. 4
and 5 will not apply.
WARNING
Read WARNING
on Page 2-1843
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