Pontiac tempest 1968 Service Manual page 170

S T A N D A R D B R A K E S
5-5
C O V E R R E T A I N I N G BAIL RUBBER D I A P H R A M RESERVOIR C O V E R TUBE FITTING CHECK V A L V E
S P R I N G RETAINER PRIMARY SEAL PROTECTOR SECONDARY SEALS RUBBER B O O T
FLUID LEVEL
FLUID LEVEL
F R O N T RESERVOIR
/ l/16'il/8
!
*H—-H
MASTER C Y L I N D E R
( M A N U A L O R P O W E R )
W I T H D I S C OR
D R U M BRAKES ( P O W E R O N L Y ) DISC BRAKES ( P O W E R O N L Y )
F i g . 5-6 F l u i d Levels and Master C y l i n d e r D e t a i l s
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.