i5. VEHICLE BRAKES UNEVENLY, BRAKES PULL TO ONE SIDE OR GRAB (CONT)
TM 9-2320-365-20-2
KNOWN INFO
TEST OPTIONS
Visual inspection
REASON FOR QUESTION
2-1688 Change 1
12.
Are vent hoses and vent
valve for affected rear
wheel brakes free from
obstructions?
NO
If vent hoses or vent valves are
plugged, brakes will not apply
at affected wheel(s).
Air tanks pressurized.
Front wheel brake shoes OK.
Front wheel brake adjustment
OK.
Front axle quick release valve
OK.
Air hose to front brake air
chamber OK.
Front brake vent hose OK.
Front brake air chamber OK.
Load sensing valve OK.
Rear brake shoes OK.
Rear wheel brake adjustment
OK.
Relay valve OK.
Air hose to rear brake air
chamber OK.
POSSIBLE PROBLEMS
Faulty rear brake vent hose or
vent valve.
Faulty rear brake air
chamber(s).
Replace rear brake air chamber(s)
at affected wheel(s) (para 11-8).
YES
Replace damaged vent hose
or vent valve (para 11-19).