Pontiac FIREBIRD 1972 Service Manual page 418

BRAKES
-
GENERAL 5-15
Fig. 5-10 X Series Power Brake System
3. Lift brake pedal with 15-20 lb. effort, brake pedal arm
NOTE: Nonnafl' the self-adjosting feature of
will automatically position switch correctly.
the brake system provides the proper shoe-to-
drum clearance, but if a need for adjustment
exists. it is recommended that the shoes be ad-
BRAKE MECHANISM AND DRUMS just& with the drums removed, using toof
number / 22364, not only to give
a
more accu-
ADJUST
rate clearance, but also to allow a thorough
inspection of the brake mechanism for possible
All four brake assemblies incorporate a mechanism to
defects which may have caused the need for
automatically adjust the brake shoes when the car is ope-
adjustment.
rated in reverse. This mechanism also has an override
feature which prevents over-adjustment.
A manual adjustment is always required when brake shoes
FLUID LEVEL
Fig. 5-1 1 Master Cylinder Fluid Levels