Does anyone know how the hand brake mechanism on rear disc brakes works? I dont know if my brake piston has seized or if the handbrake mechanism is malfunctioning. Thanks.
rear disc brakes
- Thread starter alpem
- Start date
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Magic?
As you pull the handbrake lever, a fine screw thread on the arm that sticks out of the brake caliper causes the piston to move out a fraction, without turning. It has a ratchet mechanism to prevent it moving back. This is why the caliper piston has to be rotated as it is pushed back in. Hydraulic fluid is sealed at the back of the piston so that you have normal braking as well as the mechanical handbrake. Adjustment is usually automatic, but its different on some Mazda's.
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Need to know what make & model of car as rear disc handbrake systems vary. e.g. Some have independant drum brake hidden in the hub of the disc.
