Parking Brake Operation - Yamaha YFM70RY Service Manual

EAS1S3L004

PARKING BRAKE OPERATION

When the parking brake is operated, the parking brake cable turns the parking brake arm "1". The ro-
tation of the parking brake arm is changed to axial thrust in the parking brake shaft "2" and the adjusting
bolt "3" is pushed against the adjusting bolt sleeve "4".
When the adjusting bolt sleeve receives the force, the dark shaded area in the above illustration is
pushed and the brake pad "6" is pushed against the brake disc.
When the brake pad wears, the clearance between the brake caliper piston "5" and the brake pad be-
comes larger and the force applied to the brake pad becomes weaker.
If this occurs, the self-adjusting parking brake mechanism adjusts automatically to achieve the proper
clearance.
1. Parking brake arm
2. Parking brake shaft
3. Adjusting bolt
4. Adjusting bolt sleeve
5. Brake caliper piston
6. Brake pad
6 5
4
1-5
FEATURES
1
2
3