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The internal parking brake lever of 10" and 12" Dexter brakes, which is mounted
to the secondary shoe, transfers applied cable force through a parking strut
which is attached to the primary shoe. This transferred load generates a
spreading force between the primary and secondary shoes. The shoes move
toward the drum until contact is made. Friction generated between the drum
and lining contact surface results in parking brake capability.
The internal parking brake lever of Dexter 12 1/4" brakes transfers the applied
cable force through a cam mechanism. The cam mechanism generates a
spreading force between the primary and secondary shoes. The shoes move
toward the drum until contact is made. Friction generated between the drum
and lining contact surface results in parking brake capability.
Park Lever
Braking Systems - Hydraulic
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