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Page Title:
REAR BRAKES DO NOT APPLY (cont) |
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 TM 9-2320-366-20-2
TM
i2. REAR BRAKES DO NOT APPLY (CONT)
i2.
KNOWN INFO
TEST OPTIONS
6.
Front brakes OK.
Visual inspection
Air tanks pressurized.
REASON FOR QUESTION
Is air present at control
Supply air hose to foot
A lack of air at control port
port of booster?
control valve OK.
will prevent air delivery to
Foot control valve OK.
service brake chambers
Air hoses at cab floor OK.
and cause rear brakes
Air hose to check valve OK.
not to apply.
Check valve OK.
NO
POSSIBLE PROBLEMS
Faulty air hose to control
Replace damaged air hose
port of booster valve.
YES
(para 11-21).
Faulty air hose to supply
port of booster valve.
Faulty booster valve.
Faulty air hose to load
sensing valve.
Faulty load sensing
valve.
Faulty air hose to control
port of relay valve.
Faulty air hose to supply
port of relay valve.
Faulty relay valve.
Faulty air hoses to
spring brakes.
Faulty vent hose from
spring brake service
chamber.
Faulty spring brake
chamber.
2-1858
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