shoe retainers must be removed next. Figure 7-31
shows one type being removed with a pair of ordinary
combination pliers. Heavy-duty brake shoes are
mounted on separate anchor pins. Some of these
installations require the removal of the anchor pins,
while others require the removal of clips on the end of
these pins before the brake shoes can be removed.
On light-duty applications, you can now grasp the
shoes (fig. 7-32) and lift them off the backing plate.
After they are removed, allow the shoes to move
together (fig. 7-33). This allows easy removal of the
spring and adjusting screw assembly. Disassemble the
adjusting screw and lubricate with a high-temperature
Figure 7-31.Removal of a brake shoe retainer.
Figure 7-32.Removing shoes from the backing plate.
Figure 7-33.Removing adjusting screw assembly.
If the lining is riveted and is to be replaced, you
should mark the front and rear shoe. This action will
aid in reassembly. Wipe off the backing plate
thoroughly with a rag. If the backing plate is coated
with brake fluid or axle lubricant, wash it with an
approved cleaner. Once the backing plate is clean,
apply a light coat of high-temperature lubricant to the
raised pads on the backing plate. This will keep the
shoes from squeaking after they are reassembled.
Avoid using too much lubricant or the linings can
become contaminated and ruined.
New linings are secured to the shoes by riveting or
bonding. Bonded brake linings are supplied with the
linings already attached to the shoes. At some
activities, the old shoes must be exchanged when
issued new shoes from the parts room. Linings that
require rivets to attach the linings to the shoes are
provided in kits. These kits provide enough linings and
rivets for one or more wheels. The linings are
predrilled and countersunk for the rivets and arced to
match the brake shoes.
Some shops have specialized equipment to remove
and replace the riveted linings. However, if the
equipment is not available. the old linings can be
removed with a drill and oversized bit, punch, and
hammer. Take care not to enlarge the rivet holes in the
shoes. If the rivet holes are enlarged, the shoe should be
Most NCF shops have a device for installing rivets.
This device comes with adapters for use with various
size rivets. When installing rivets. you always start in
the center of the lining and work alternately to each
end. Make sure the rivets are tight enough to hold the
lining securely without splitting the lining at the rivet
For installation of the new shoes, refer to the
manufacturers service manual. Your service manual
will have illustrations for the particular brake design
being serviced. Use them to ensure all parts are
positioned correctly, on the backing plate. When
reassembling the brake assemblies, ask yourself the
Are the wheel cylinders in perfect condition and
Did I lubricate the backing plate and star wheel?
Is the primary (smaller) lining facing the front of
the vehicle and the secondary (larger) lining
facing the rear?