Design of temperature-dependent adjuster mechanism
As the brake linings wear, the distance (clearance) from the brake drum increases.
The temperature-dependent adjuster mechanism keeps this distance constant. When the brake linings are
moved against the spring force of the return springs, the shape of the locking spring will cause the adjuster to
turn towards the outside. The locking spring and the return gear stop the adjuster from turning back. The locking
spring engages in the next tooth flank. In this way, the clearance between the brake lining and the brake drum
remains constant.
Fork head
Locking spring
Adjuster body
Circlip
Adjuster with fork fixture
Locking element
Thermal clip (bimetallic)
S571_036
Return gear and locking spring engaged
Locking spring
Return gear
S571_109
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