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TM 9-2320-364-20-2
2-1822
10. SERVICE BRAKES ON AXLE NO. 3 DO NOT APPLY (CONT).
3.
Does service relay valve No. 2
operate correctly?
Replace service relay
valve No. 2
(Para 12-14).
Verify repair, go to
Step 6 of this Fault.
YES
NO
All service brakes on Axles
No. 4 and No. 5 operate
correctly.
Both sets of brakes on Axle
No. 3 fail to apply correctly.
Air lines free of crimps or leaks
and fittings, valves, and air
chambers free of leaks.
Service relay valve No. 2 faulty.
Air chambers faulty.
Brakes faulty.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Service relay valve No. 2 test.
If service relay valve No. 2 fails
closed, it will not supply air to air
chamber.
WARNING
Read WARNING
on Page 2-1823
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