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TM 9-2320-364-20-2
2-1784
5. PARKING BRAKES ON AXLE NO. 3 DO NOT APPLY (CONT).
Parking brakes on Axles No. 4
and No. 5 operate correctly.
Both brakes on Axle No. 3 OK.
Air lines OK.
Relay spring valve No. 1 OK.
Air chambers OK.
Brakes OK.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Verify repair.
If parking brakes on Axle No. 3
apply, fault has been corrected.
YES
NO
Fault not corrected.
Notify DS
Maintenance.
6.
Do parking brakes on Axle
No. 3 apply?
5.
Are brake shoes and wedges
free of damage?
Replace brake shoes
and/or wedges
(Para 12-2).
Verify repair, go to
Step 6 of this Fault.
YES
NO
Parking brakes on Axles No. 4
and No. 5 operate correctly.
Both brakes on Axle No. 3 OK.
Air lines OK.
Relay spring valve No. 1 OK.
Air chambers OK.
Brakes faulty.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Visual inspection.
If brake components are faulty
or installed incorrectly, they will
prevent parking brakes from
applying.
WARNING
Fault corrected.
Read WARNING
on Page 2-1785
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