STANDARD
BRAKES
5-15
5
0
Install brake drums. Adjust front wheel bear-
ings
(as described in Section 3, SUSPENSION).
6. Bleed all brake lines as described under
BLEEDING
BRAKES
in this section,
7, Adjust and
test
brakes as previously described
in
this section,
PARKING
BRAKE
The
rear brake assemblies serve a dual purpose
in
that they are utilized both as a hydraulically op-
erated brake and a mechanically operated parking
brake.
In view of this dual purpose, the hydraulic
brake
must be properly adjusted as a base for park-
ing brake adjustment.
NOTE:
Automatic brake adjusters normally keep
the parking brake adjusted correctly. However,
there
may be a condition where the parking brake
system
will
require additional adjustment even
though the
service
brakes are perfectly satisfac-
tory*
INSPECTION,
CLEANING
AND
LUBRICATION
If
complete
release of the parking brake pedal is
not obtained unless the pedal is forcibly returned to
its released position, or if the application effort is
high, check parking brake pedal assembly for free
operation. If operation is sticky or a bind is
expe-
rienced,
correct as follows:
1.
Clean
and lubricate cables (within conduits) and
cable contact areas with lithium
soap
grease or
equivalent.
2. Inspect brake pedal assembly for straightness
and
alignment.
3.
Clean
and lubricate parking brake pedal assem-
bly with chassis grease.
4. Check routing of cables for kinks, binds and
broken strands.
ADJUSTMENT
CA
UTION:
It is very important that parking brake
cables
are not adjusted too tightly causing brake
drag.
With automatic brake adjusters, a tight cable
causes
brake
drag
and also positions the second-
ary
brake shoe, hence the adjuster lever, so that it
continues
to adjust to compensate for wear caused
by the drag. The result is a
cycle
of wear and ad-
justment that can wear out linings very rapidly.
1.
Jack
up both rear wheels.
2. Push parking brake pedal five to seven
notches
from fully released position (Pontiac and Tempest).
Two
notches
on
Firebird
models.
3.
Loosen the equalizer rear lock nut. Adjust the
forward
nut until a light to moderate drag is
felt
when rear wheels are rotated.
4. Tighten lock nut.
5.
Fully
release parking brake and rotate rear
wheels; no drag should be present.
PARKING
BRAKE
PEDAL
REMOVAL
NOTE:
Remove positive cable from battery to
eliminate the possibility of creating short
circuits
under dash.
1. Place parking brake pedal in released position.
2. Remove equalizer check nut and separate cable
stud from equalizer.
3.
Remove two attaching nuts from mounting studs
located in
engine
compartment.
4. Remove front cable ball end from pedal swivel.
5. Remove pedal to dash brace attaching screw.
6. Remove brake pedal switch wire.
7. Remove pedal assembly by lowering rear
slightly to avoid scratching dash, and pulling it out
of the firewall.
BRAKE
PEDAL
INSTALLATION
1. Place pedal in position with the two mounting
studs protruding through the
holes
provided in the
firewall.
2. Position front cable ball end into pedal swivel.
3.
Install and tighten pedal to dash brace attaching
screw.
4. Install parking brake switch wire.
5. Install and tighten two attaching nuts on mount-
ing studs located in
engine
compartment.
6. Place equalizer in position on center cable and
insert front cable stud through equalizer and secure
with check nut.
7. Adjust parking brake as outlined under Parking
Brake
Adjustment.
8. Connect positive battery cable.
FRONT
CABLE
REMOVAL
NOTE:
Remove positive cable from battery to
eliminate the possibility of creating short
circuits
under dash.
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