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TM 9-2320-364-20-2
2-1764
Replace air lines
and/or tighten/replace
fittings and/or replace
spring relay valve
No. 2, air chamber
(Para 12-36, 12-17,
12-10 and see
schematic Fig 2-46).
Verify repair, go to
Step 6 of this Fault.
3. PARKING BRAKES ON AXLES NO. 4 AND NO. 5 DO NOT RELEASE (CONT).
Brakes on Axle No. 3 operate
correctly.
All brakes on Axles No. 4 and
No. 5 fail to release.
Air lines crimped or leaking
and/or fittings, relay spring
valve No. 2 leaking.
Relay spring valve No. 2
faulty.
Air chambers faulty.
Brakes faulty.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Visual inspection.
Audible inspection.
YES
NO
.
2.
Are air
lines 2368, 2369, 2138, 2139,
2140 and 2141 free from
crimps and/or leaks and are
fittings, valve and chamber
free of leaks?
If air lines and/or fittings, valve or
air chamber are leaking, loss of
air pressure will prevent brakes
from operating correctly.
WARNING
Read WARNING
on Page 2-1765
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