Ford Cougar 1967 Shop Manual page 24

GROUP
2-Bra
kes
BRAKE SHOES A N D
ADJUSTING SCREW
R E M O V A L
1. With the wheel and drum re-
moved, install a clamp over the ends
of the wheel cylinder as shown in
Fig. 14.
2. Remove the brake retracting
springs +sing Tool 2035-N or 2086-
L (Fig. 14).
3. Disconnect the brake shoe hold-
down springs and remove the brake
shoe assemblies along with the com-
plete automatic adjustment mecha-
nism.
4. Disassemble the brake shoes.
5. On rear brakes, remove the
parking brake link and spring from
the brake assemblies. Disconnect the
parking brake cable from the parking
brake lever.
6. After removing the rear brake
shoes disassemble the parking brake
lever from the secondary shoe by re-
moving the retaining clip and spring
washer (Figs. 9 and 10).
I N S T A L L A T I O N
1. Before installing the rear brake
shoes, assemble the parking brake
lever to the secondary shoe and se-
cure it with the spring washer and
retaining clip.
2. Apply a light coating of high-
temperature grease at the points
where the brake shoes contact the
backing plate.
3. Position the brake shoes on the
backing plate and secure them with
the hold down springs. On the rear
brake, install the parking brake link
and spring. Connect the parking
brake cable to the parking brake
lever (Figs. 9 and 10).
Install the cable guide on the
secondary shoe web with the flanged
hole properly fitted into the hole in
the secondary shoe web. Install the
secondary spring (secondary shoe to
anchor spring) (Figs. 9 and 10).
5. Place the cable eye over the an-
chor pin with the crimped side to-
ward the backing plate. lnstall the
primary shoe to anchor spring with
the tool shown in Fig. 15.
6. Thread the cable around the ca-
ble guide groove.
I t is imperative that the cable be
positioned in this groove and not be-
tween the guide and the shoe web.
Be certain that the cable eye is not
cocked or binding on the anchor pin
when installed. All parts should be
flat on the anchor pin. Remove the
brake cylinder clamp.
7.
Apply a small amount of high-
temperature grease (Part Number
CIAZ-19580-B) t o the threads and
the socket end of the adjusting screw.
Turn the adjusting screw into the ad-
justing pivot nut t o the limit of
the threads and then back off 112
turn.
Interchanging the brake shoe ad-
justing screw assemblies from one
side of the vehicle to the other would
cause the brake shoes to retract
rather than expand each time the
automatic adjusting mechanism op-
erated. T o prevent accidental instal-
lation of the adjusting screw on the
wrong side of the vehicle the socket
end of the adjusting screw is stamped
with an R or L (Fig. 16). The ad-
justing pivot nuts can be distin-
guished by the number of grooves
machined around the body of the
nut. Two grooves indicate a right-
hand nut; one groove indicates a left-
hand nut.
8. Place the adjusting socket on
the screw and install this assembly
between the shoe ends with the ad-
jpsting screw toothed wheel nearest
the secondary shoe.
9. Hook the cable hook into the
hole in the adjusting lever. The ad-
justing levers are stamped with an
R or L to indicate their installation
on a right or left brake assembly
(Fig. 16):
10. Position the hooked end of
the adjuster spring completely into
the large hole in the primary shoe
web. The last coil of the spring
should be at the edge of the hole.
Connect the loop end of the spring
to the adjuster lever hole (Figs. 9
and 10).
11. Pull the adjuster lever, cable
and automatic adjuster spring down
and toward the rear to engage the
pivot hook in the large hole in the
secondary shoe web.
12. After installation, check the ac-
tion of the adjuster by pulling the sec-
tion of the cable between the cable
guide and the anchor pin toward the
secondary shoe web far enough to
lift the lever past a tooth on the
adjusting screw wheel. The lever
should snap into position behind the
next tooth, and release of the cable
should cause the adjuster spring to
return the lever to its original posi-
tion. This return action of the lever
will turn the adjusting screw one
tooth.
If pulling the cable does not pro-
duce the action described, or if the
lever action is sluggish instead of
positive and sharp, check the posi-
tion of the lever on the adjusting
screw toothed wheel. With the brake
in a vertical position (anchor at the
FIG.
14-Retracting Spring Removal
-Typical
NG.
15- Retracting Spring
Installation -Typical
top), the lever should contact the
adjusting wheel 3/16 inch (plus or
minus 1/32 inch) above the center-
line of the screw. If the contact point
is below the centerline, the lever will
not lock on the teeth in the adjusting
screw wheel, and the screw will not
be turned as the lever is actuated by
the cable.
T o determine the cause of this
condition:
a.
Check the cable end fittings,
The cable should completely fill or
extend slightly beyond the crimped
section of the fittings. If it does not
meet this specification, possible dam-
age is indicated and the cable assem-
bly should be replaced.
b.
Check the cable length. The ca-
ble should measure 8 13/32 inches on
9 inch brakes or 9 314 inches on 10
inch brakes from the end of the cable
anchor to the end of the cable hook.
c. Check the cable guide for dam-
age. The cable groove should
be
parallel to the shoe web, and the
body of the guide should lie flat
against the web. Replace the guide
if it shows damage.
d.
Check the pivot hook on the
lever. The hook surfaces should be
square with the body of the lever
for proper pivoting. Replace the
lever if the hook shows damage.