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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)
WARNING
Read WARNING
KNOWN INFO
TEST OPTIONS
on following page.
2.
Air tanks pressurized.
Visual inspection
Are front wheel brake shoes
POSSIBLE PROBLEMS
REASON FOR QUESTION
free from contamination, oil,
and grease?
Contaminated front wheel
Brakes will slip or bind if brake
brake shoes.
shoes are contaminated.
Faulty front wheel brake
adjustment.
Faulty front axle quick release
valve.
NO
Faulty air hose to front brake
air chamber.
Faulty front brake vent hose.
Faulty front brake air chamber.
Faulty load sensing valve.
Contaminated rear brake
Clean brake shoes (para 2-43)
YES
shoes.
and replace wheel bearing seals
Faulty rear wheel brake
(para 10-2).
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
3.
Visual inspection
Air tanks pressurized.
Front wheel brake shoes OK.
Do brakes at one front
REASON FOR QUESTION
wheel fail to apply?
POSSIBLE PROBLEMS
If one front wheel brake does
Faulty front wheel brake
not apply, vehicle will pull to
adjustment.
other side when brakes are
Faulty front axle quick release
applied.
valve.
Faulty air hose to front brake
NO
air chamber.
Faulty front brake vent hose.
Faulty front brake air chamber.
Faulty load sensing valve.
Contaminated rear brake
Perform brake shoe clearance
YES
shoes.
adjustment (para 11-2).
Faulty rear wheel brake
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).
2-1912
Change 1
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