Subaru 2002 Impreza Service Manual page 331

REAR DRUM BRAKES
Brakes
A: AUTOMATIC ADJUSTER
The brake lining-to-drum clearance is automatically adjusted by the automatic adjuster. When the
brake shoe is contracting after expansion, the adjuster lever rotates the adjuster assembly's screw
to lengthen the adjuster assembly so that the clearance is maintained at the specified value.
(1)
Upper shoe return spring
(2)
Adjuster assembly
(3) Leading shoe
(4) Trailing shoe
(5) Adjuster lever
(6) Parking lever
(7) Lower shoe return spring
NF0239
B R-5