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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
8.
Air tanks pressurized.
Visual inspection
Front wheel brake shoes OK.
Are rear brake shoes on
REASON FOR QUESTION
Front wheel brake adjustment
affected wheel(s) free from
OK.
contamination, oil, and
Rear brakes will slip or bind on
Front axle quick release valve
grease?
affected wheels if brake shoes
OK.
are contaminated.
Air hose to front brake air
chamber OK.
Front brake vent hose OK.
Front brake air chamber OK.
NO
Load sensing valve OK.
POSSIBLE PROBLEMS
Contaminated rear brake
shoes.
Clean brake shoes (para 2-43)
Faulty rear wheel brake
YES
and replace wheel bearing seals
adjustment.
(para 10-2).
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
9.
Visual inspection
Air tanks pressurized.
Front wheel brake shoes OK.
Do brakes at one or more
REASON FOR QUESTION
Front wheel brake adjustment
rear wheels fail to apply?
OK.
If one rear or more rear wheel
Front axle quick release valve
brakes do not apply, vehicle
OK.
will drag or swerve when
Air hose to front brake air
brakes are applied.
chamber OK.
Front brake vent hose OK.
Front brake air chamber OK.
NO
Load sensing valve OK.
Rear brake shoes OK.
POSSIBLE PROBLEMS
Perform brake shoe clearance
YES
Faulty rear wheel brake
adjustment (para 11-3).
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).
2-1918
Change 1
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