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Page Title:
SERVICE BRAKE(S) ON ONE AXLE DO NOT APPLY OR APPLY SLOWLY. (Cont) |
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 TM 9-2330-385-14
6. SERVICE BRAKE(S) ON ONE AXLE DO NOT APPLY OR APPLY SLOWLY (CONT).
3.
KNOWN INFO
TEST OPTIONS
Truck air system OK.
Brake chamber operation test.
Do brake chamber rods
Air lines, fittings, relay valve
extend when brake pedal is
and brake chambers OK (free
REASON FOR QUESTION
applied?
of leaks).
Relay valve OK.
If service brake chamber(s) is
Multifunction valve OK.
damaged, service brakes will
not apply or apply slowly.
POSSIBLE PROBLEMS
Brake chamber(s) faulty.
Slack adjuster(s) faulty.
Brake components faulty.
Replace brake
chamber(s)
NO
Verify repair, go to
Step 6 of this Fault.
YES
4.
KNOWN INFO
TEST OPTIONS
Truck air system OK.
Are slack adjusters adjusted
Visual inspection.
Air lines, fittings, relay valve
and free of damage?
and brake chambers OK (free
REASON FOR QUESTION
of leaks).
Relay valve OK.
If slack adjuster binds or is not
Multifunction valve OK.
adjusted correctly, brakes will
Brake chambers OK.
not apply or apply slowly.
POSSIBLE PROBLEMS
Slack adjuster(s) faulty.
Brake components faulty.
Adjust or replace
slack adjuster(s)
NO
(Para 4-34 or 4-36).
Verify repair, go to
Step 6 of this Fault.
YES
4-282
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