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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
14.
Front brakes OK.
Visual inspection
Air tanks pressurized.
REASON FOR QUESTION
Is air present at service
A lack of air at service
Supply air hose to foot
brake air chamber(s) of
brake air chambers will
control valve OK.
spring brakes?
cause rear brakes not to
Foot control valve OK.
apply.
Air hoses at cab floor OK.
Air hose to check valve OK.
Check valve OK.
NO
Air hose to control port of
booster valve OK.
Air hose to supply port of
Replace damaged air hose(s)
YES
booster valve OK.
(para 11-21).
Booster valve OK.
Air hose to load sensing
valve OK.
Load sensing valve OK.
Air hose to control port of
relay valve OK.
Air hose to supply port
relay valve OK.
Relay valve OK.
POSSIBLE PROBLEMS
Faulty air hoses to spring
brakes.
Faulty vent hose from
spring brake service
chamber.
Faulty spring brake
chamber.
2-1874
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