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TM 9-2320-364-20-2
2-1748
1. PARKING BRAKES ON AXLES NO. 3 THROUGH NO. 5 DO NOT RELEASE (CONT).
Air lines and fittings OK.
Spring brake valve not leaking.
Dash manifold valve OK.
Spring brake valve OK.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Verify repair.
If parking brakes on Axles No. 3
through No. 5 release, fault has
been corrected.
YES
NO
Fault not corrected.
Notify DS
Maintenance.
5.
Do parking brakes on Axles
No. 3 through No. 5 release?
Fault corrected.
4.
Does the spring brake valve
operate correctly?
Replace spring brake
valve (Para 12-18).
Verify repair, go to
Step 5 of this Fault.
YES
NO
Air lines and fittings OK.
Spring brake valve not leaking.
Dash manifold valve OK.
Spring brake valve faulty.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Pressure test.
If spring brake valve fails
closed, air pressure for
actuating spring brake relay
valves will not be available.
WARNING
Read WARNING
on Page 2-1749
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