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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
3.
Front brakes OK.
Visual inspection
Air tanks pressurized.
REASON FOR QUESTION
Are air hoses to rear
If air hoses at cab floor
Supply air hose to foot
brakes free from leaks
junction are leaking or
control valve OK.
and damage at cab floor?
damaged, rear brakes
Foot control valve OK.
may not apply.
POSSIBLE PROBLEMS
Faulty air hoses at cab
floor.
NO
Faulty air hose to check
valve.
Faulty check valve.
Replace damaged air hose(s)
YES
Faulty air hose to control
and fitting (para 11-21).
port of booster valve.
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.
2-1852
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