Cadillac 60 Series 1963 Shop Manual page 168

BRAKES
S-3
in turn disengages the locking mechanism, per-
mitting the parking brake pedal to return to its
released position by spring action.
The brake stoplight switch is mounted on a
flange protruding from the brake pedal support
bracket below the instrument panel. When the
brake pedal is depressed, the spring loaded
switch plunger follows the brake pedal arm down-
ward until the switch is in the " o n " position.
When the brakes are released, the arm returns
the switch plunger to the "off" position.
SERVICE INFORMATION
1. Manual Brake Shoe Adjustment
Although the hydraulic service brakes are self-
adjusting, a preliminary star wheel adjustment is
necessary after the brake shoes have been relined
or replaced, or when the length of the star wheel
adjuster has been changed during some other
service operation. Final adjustment is made auto-
matically by adjusters that function when the car
is moving backward.
1. Check fluid level in both master cylinder
reservoirs. Fluid level should be approximately
3/4 inch from top of each filler hole boss. Add
fluid if necessary.
2. Check front wheel bearing adjustment and
correct if necessary. See Section 4, Note 5.
3. Check to make certain that parking brake
cable and linkage, including levers on rear sec-
ondary shoes, are free.
4. Tighten star wheel until brake drum can just
be rotated forward with a two-foot bar placed
between the studs.
5. Disengage adjuster pawl from star wheel
with a hooked tool and back off star wheel 40
notches with screwdriver or brake adjuster tool.
Fig. 8-3.
6. Install wheels and lower car.
7. Drive car alternately forward and backward,
applying brakes moderately in each direction until
pedal travel does not exceed 1-7/8 inch on a mod-
erate (approximately 30 pound) brake pedal
application.
2. Parking Brake Adjustment
NOTE: In order to adjust parking brakes on
1963 Cadillac cars, it will be necessary to make
a gage using 3/16 inch flat steel according to
pattern shown in Fig. 8-4.
1. Make sure that service brakes are properly
adjusted before adjusting parking brake.
2. Lubricate complete parking brake linkage
with special heat resistant lubricant, and check
for free movement of cables in conduit and in
equalizer.
3. Check relay lever return spring and replace
if weak or broken.
4. With mechanism in released position, check
for proper tension of front cable by inserting
13/16 inch portion of Parking Brake Gage between
relay lever and end of slot in frame, Fig. 8-4.
Gage must fit in slot with clearance of less than
5/16 inch. If necessary, adjust front cable by
aligning one of three clevis holes with one of two
relay lever holes to provide proper gage fit.
5. Back off parking brake equalizer nut until
relay lever can be moved forward enough to slip
Checking Tension
Of Front Cable
Fig. 8-3 Manual Brake Shoe Adjustment-
Fig. 8-4 Parking Brake Adjustment