Pontiac firebird 1968 - Page 170

STANDARD BRAKES
5-5
COVER RETAINING BAIL RUBBER DIAPHRAM RESERVOIR COVER TUBE FITTING CHECK VALVE
SPRING RETAINER PRIMARY SEAL PROTECTOR SECONDARY SEALS RUBBER BOOT
FLUID LEVEL
FLUID LEVEL
FRONT RESERVOIR
/ l/16'il/8
!
*H—-H
MASTER CYLINDER
(MANUAL OR POWER)
WITH DISC OR
DRUM BRAKES
(POWER ONLY)
DISC BRAKES (POWER ONLY)
Fig. 5-6 Fluid Levels and Master Cylinder Details
1. Check fluid level in master cylinder. The level
should be within 1/2 inch from top of reservoir,
Fig. 5-6.
2. Check for correct wheel bearing adjustment
(see section 3).
3. Check to make certain parking brake mecha-
nism and linkage are properly adjusted.
4. With wheels removed, remove adjusting hole
cover from backing plate and lengthen adjusting
screw using J 4735 (Pontiac) or J 8915 (Tempest and
Firebird) until a heavy drag is felt on the outer di-
ameter of the drum (approximately a 17 lb. drag).
5. Hold automatic adjuster actuator arm away
from adjusting screw with screw driver or probe and
back-off one turn (Pontiac - 30 notches, Tempest and
Firebird, 26 notches of adjusting screw star wheel).
(Fig. 5-4 and 5-5).
This will provide proper drum to lining clearance
between secondary lining and drum while primary
lining is against drum.
a. At completion of adjustment, drum must ro-
tate without any drag.
b. Replace any parts that prevent free rotation.