TM 9-2320-365-20-2
2-1624
YES
NO
3.
Visual inspection
KNOWN INFO
TEST OPTIONS
REASON FOR QUESTION
POSSIBLE PROBLEMS
Front brakes OK.
Air tanks pressurized.
Supply air hose to foot
control valve OK.
Foot control valve OK.
Are air hoses to rear
brakes free from leaks
and damage at cab floor?
If air hoses at cab floor
junction are leaking or
damaged, rear brakes
may not apply.
Replace damaged air hose(s)
and fitting (para 11-19).
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)