Question:
What distinguishes a wedge brake from other types of brakes?
A
The brake chamber push rod pushes a wedge directly between the ends of two brake shoes.
explanation
The brake chamber push rod pushes a wedge directly between
the ends of two brake shoes. This shoves them
apart and against the inside of the brake drum
Wedge brakes may have a single brake chamber,
or two brake chambers, pushing wedges in at both
ends of the brake shoes.
(According to CDL Handbook)
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