CHASSIS
7-67
OPERATION (Brake pads are worn→ → → → Braking→ → → → Automatic adjuster operate)
If braking when the brake pad being worn, the caliper piston/adjust nut move [ 1] untill the clearance
depended on abrasion is done away.
The axial movement [ 2] is converted to rotary movement and acts on the adjust bolt and adjust nut. Only
the adjust bolt turns [ 3] because the caliper piston/adjust nut is fixed to the brake pad with caliper piston
groove and pad boss at A. Thus, the adjust bolt keeps original position with rotating as well as the caliper
piston/adjust nut moves outside.
The adjust bolt stops rotating once the brake pad-to-disc clearance become zero, so the automatic adjuster
operation is completed.
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