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TM 9-2320-364-20-2
2-1820
10. SERVICE BRAKES ON AXLE NO. 3 DO NOT APPLY (CONT).
2.
Are air
lines 2011,
2668, 2639, 2545, 2874, 2546
and 2547 free from crimps
and/or leaks and are fittings,
valve and air chamber free of
leaks?
Replace air lines,
valve air chamber,
tighten or replace
fittings (Para 12-36,
12-14, 12-10 and see
schematic Fig 2-45).
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 do not apply correctly.
Air lines crimped or leaking
and/or fittings, valves, air
chambers leaking.
Service relay valve No. 2
faulty.
Air chambers faulty.
Brakes faulty.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Visual inspection.
Audible inspection.
If air lines and/or fittings or
valves are leaking, loss of air
pressure will prevent brakes
from applying.
WARNING
Read WARNING
on Page 2-1821
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