TM 9-2320-365-20-2
2-1622
YES
NO
2.
A lack of air from
delivery port of foot
control valve will prevent
air delilvery to service
brake chambers and
cause brakes not to apply.
Visual inspection
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Front brakes OK.
Air tanks pressurized.
Supply air hose to foot
control valve OK.
Is air present at foot
control valve delivery
air hose?
Replace foot control valve
(para 11-9).
Faulty foot control valve.
Faulty air hoses at cab
floor.
Faulty air hose to check
valve.
Faulty check 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.
i2. REAR BRAKES DO NOT APPLY (CONT)
