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BRAKES-SERVICE
5-7
(3) Remove the brake shoe retainer, spring and
IMPORTANT:
On Models
AV-1,
AV-2
insert a small
punch into the center
of
the brake shoe to backing
plate retainer spring and while holding the backing
plate retainer clip, press in and disconnect the
spring (Fig.
6).
pins (Fig. 8).
CA
STAR WHEEL
.
63x594~4
Fig. 8-Brake
Assembly (rear)
(4)
Remove the anchor pin plate and tilt the brake
shoe assembly out from the backing plate.
(5)
Spread the anchor ends of the primary and sec-
ondary shoes and remove the parking brake
strut
and spring.
(6)
Disengage the parking brake cable from the
parking brake lever and remove the brake assembly.
(7)
Overlap the anchor ends of the primary and sec-
ondary shoes and remove the adjusting star, adjust-
ing lever, adjusting spring, cable and cable guide.
CLEANING AND INSPECTION
Wipe or brush clean (dry) the metal portions of the
brake shoes. Examine the lining contact pattern to de-
termine
if
the shoes are bent. The lining should show
contact across the entire width, extending from heel
to toe. Shoes showing contact only on one side
should be replaced. Shoes having sufficient lining but
lack of contact at toe and heel should be measured for
proper grind.
Clean the support, using a suitable solvent, then in-
spect for burrs. Remove burrs, then apply a light
coat of lubriplate to the brake shoe contact area.
Clean the threads of the adjusting screws, then in-
spect for pulled or stripped threads.
Grinding Recommendations
Brake Shoe Lining-New
lining should be meas-
ured and ground
.060"
to .080" (maximum) under the
drum diameter.
Drum
Refacing-Measure
the drum runout with
an accurate gauge. Drum runout should not exceed
.006 inch out of round. If the drum runout is in ex-
cess of
.006
inch, (total indicator runout) the drum
should be refaced. Remove only as much material
as
is necessary to clean up the drum.
Do not reface more
than
.060 inch over the standard drum diameter.
BRAKE SHOE INSTALLATION
Installing the Front Bruke Shoes
(1) Match a primary with a secondary brake shoe
and place them in their relative position on a work
bench.
(2)
Lubricate the threads of the adjusting screw
and install it between the primary and secondary shoes
with the star wheel next to the secondary shoe (Fig.
1). The star adjusting wheels are stamped "R" (right
side) and
"L"
(left side), and indicate their location
on the vehicle.
(3) Overlap the anchor ends of the primary and
the secondary brake shoes and install the adjusting
spring and lever.
(4)
Spread the anchor ends of the brake shoes
to maintain the adjusting lever and spring in position.
(5) Holding the brake shoes in their relative posi-
tion, place the brake shoe assembly on the support
and over the anchor pin (Fig. 9).
(6)
Install the retainer pins, cups, springs and
re-
tainers.
Fig. 9-Removing
or Installing the Brake Shoes
IMPORTANT:
On Models
AV-1, AV-2
install the
brake shoe retaining springs and attach to the re-
tainer clips.
(7)
Install the anchor pin plate.
(8)
Install the cable guide in the secondary shoe and
place the "eye" of the adjusting cable over anchor pin.
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