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Page Title:
VEHICLE BRAKES UNEVENLY, BRAKES PULL TO ONE SIDE OR GRAB (Cont) |
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 TM 9-2320-366-20-2
i5. VEHICLE BRAKES UNEVENLY, BRAKES PULL TO ONE SIDE OR GRAB (CONT)
KNOWN INFO
TEST OPTIONS
4.
Audible and Visual inspection
Air tanks pressurized.
Front wheel brake shoes OK.
When brakes are applied, is
REASON FOR QUESTION
Front wheel brake adjustment
air present at front axle
OK.
quick release valve delivery
If front axle quick release valve
port to failed brake?
is providing air to only one
POSSIBLE PROBLEMS
delivery hose, front brakes
Faulty front axle quick release
will only apply on one side.
valve.
Faulty air hose to front brake
air chamber.
NO
Faulty front brake vent hose.
Faulty front brake air chamber.
Faulty load sensing valve.
Contaminated rear brake
shoes.
Replace front axle quick release
YES
Faulty rear wheel brake
valve (para 11-17).
adjustment.
Faulty relay valve.
Faulty air hose to rear brake
air chamber.
Faulty rear brake vent hose
or vent valve.
Faulty rear brake air
chamber(s).
KNOWN INFO
TEST OPTIONS
5.
Air tanks pressurized.
Audible and Visual inspection
Front wheel brake shoes OK.
Is air present at front brake
REASON FOR QUESTION
Front wheel brake adjustment
air chamber on affected side
OK.
of vehicle when brakes are
If air hose to front brake(s) is
Front axle quick release valve
applied?
damaged or blocked, brakes
OK.
will not operate on affected
POSSIBLE PROBLEMS
side of vehicle.
Faulty air hose to front brake
air chamber.
Faulty front brake vent hose.
NO
Faulty front brake air chamber.
Faulty load sensing valve.
Contaminated rear brake
shoes.
Faulty rear wheel brake
Replace damaged air hose(s)
YES
adjustment.
(para 11-21).
Faulty relay valve.
Faulty air hose to rear brake air
chamber.
Faulty rear brake vent hose
or vent valve.
Faulty rear brake air
chamber(s).
2-1914
Change 1
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