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BRAKE DRUM AND ROTOR SERVICE INFORMATION
TROUBLE-SHOOTING: BRAKE DRUM WEAR
Problem
Cause
Solution
H. Excessive Wear
NO PHOTO AVAILABLE
Abrasive material or poor
quality lining
Check maximum diameter and
rebore within limits or replace. See
section covering Grooving.
I. Grease Stained Drums
Leaking oil seal; improper
lubrication of brake
components
Repair source of oil or grease leak;
clean the brake drum and replace
linings.
J. Polished Brake Surface
J1. Non-asbestos lining
NO PHOTO AVAILABLE
J1.
Normal condition.
J2. Glazed surface
J2.
Improperly cured brake
lining
J2.
Remove glaze with emery cloth or
rebore drum within normal limits.
K. Faded or diminished brake power
NO PHOTO AVAILABLE
High temperature in
brake system, improperly
adjusted brakes or inferior
brake lining.
Check brake drum, brake lining
condition, brake adjustment and
brake balance. Avoid operation
conditions or loads which create
excessive brake temperature.
L. Noise, chatter or pulsating during brake application
NO PHOTO AVAILABLE
Heat spotted drums,
grease stained drums,
loose brake drum, or brake
components
The brake drums should be
removed and checked for one or
more of these conditions and the
appropriate action taken to resolve
the condition.