TSE DP20-4H, Owner'S Manual

Page: 172 / 242

-16-
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 within
1
/
16
" or less),
contaminated with grease
or oil, or abnormally scored
or gouged. 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
Hairline Cracks