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Shoes and Linings
A simple visual inspection of your brake linings will tell if they are usable.
Replacement is necessary if the lining is worn to 1/16" or less. Shoes
contaminated with grease or oil,
or abnormally scored or gouged
should also be replaced. Hairline
heat cracks are normal in bonded
linings and should not be cause
for concern. When replacement is
necessary, it is important to replace
both shoes on each brake and both
brakes of the same axle. This will
help retain the “balance” of your
brakes.
CAUTION
POTENTIAL ASBESTOS DUST HAZARD!
Some older brake linings may contain asbestos dust, which has been
linked to serious or fatal illnesses. Certain precautions need to be
taken when servicing brakes:
1. Avoid creating or breathing dust.
2. Avoid machining, filing or grinding the brake linings.
3. Do not use compressed air or dry brushing for cleaning (dust can
be removed with a damp brush).
After replacement of brake shoes and linings, the brakes must be re-burnished
to seat in the new components. This should be done by applying the brakes 20
to 30 times from an initial speed of 40 m.p.h., slowing the vehicle to 20 m.p.h.
Allow ample time for brakes to cool between applications. This procedure allows
the brake shoes to seat in to the drum surface.
Braking Systems - Electric
Acceptable
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