Table of Contents
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2-2
GROUP 2
-BRAKES
TABLE
1
-Front
(Disc)
Brake Trouble Symptoms
and
Possible Causes
POSSIBLE CAUSES OF TROUBLE
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Shoe
and
Lining
Knock-back
after
Violent
Cornering
or
Rough Road Travel
X
Piston
and
Shoe
and
Lining Assembly
not
Properly
Seated
or
Positioned
X
X
Air
Leak
or
Insufficient Fluid
in
System
or
Caliper
X
X
Loose
Wheel
Bearing
Adjustment
X
Damaged
or
Worn Caliper Piston Seal
X
X
X
Improper
Booster Push Rod Adjustment
X
Excessive
Lateral
Run-Out
of
Rotor
X
Rotor
Excessively
out
of
Parallel
X
Frozen
or
Seized
Pistons
X
X
X
X
Brake
Fluid,
Oil
or
Grease
on
Linings
X
X
X
Shoe
and
Lining
Worn Below
Specifications
X
Proportioning
Valve Malfunction
X
X
Booster Inoperative
X
Caliper Out
of
Alignment
with
Rotor
X
X
Loose Caliper Attachment
X
X
Need to
Slightly
Increase
or
Decrease Pedal Effort
X
Excessive Clearance Between
Shoe
and
Caliper
or
Between Shoe
and
Splash Shield
X
Shoe
Hold
Down
Clips
Missing
or
Improperly
Positioned
X
Operator
Riding
Brake
Pedal
X
Scores
in
the Cylinder
Bore
X
Corrosion Build
Up
in
the Cylinder
Bore
or on
the
Piston
Surface
X
Bleeder Screw Still Open
X
Caliper
Out
of
Parallel
with
Rotor
X
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