REAR BRAKE


  1. CONSTRUCTION


    1. Built-in Type Disc Brake


      1. The built-in type brake caliper assembly is comprised of a cylinder, piston assembly and actuator assembly, and has a built-in parking mechanism.

        A004V0HE02
        Text in Illustration
        *1 Piston Assembly *2 Cylinder
        *3 Actuator Assembly - -
        *a A-A Cross Section - -

  2. OPERATION


    1. Built-in Type Disc Brake


      1. When the parking brake pedal is operated, the crank lever and the input shaft (actuator assembly) that is connected to the crank lever rotate via the parking brake cable.

      2. At the same time, the input shaft slides the push rod through the movement of the check ball.

      3. The nut sleeve in the piston that is connected to the push rod also slides, pushing out the piston and disc pad to generate braking force.

        Text in Illustration
        *1 Disc Pad *2 Nut Sleeve
        *3 Push Rod *4 Check Ball
        *5 Crank Lever *6 Disc Rotor
        *7 Input Shaft - -

      4. When the brake pad is worn and the clearance between the disc pad and disc rotor reaches a predetermined level, auto adjust operation is performed through hydraulic pressure when the brake pedal is operated.

      5. The piston slides until the disc pad makes contact with the disc rotor, and a clearance is created between the piston and nut sleeve. At this time, while rotating around the push rod, the nut sleeve moves until it makes contact with the piston and performs the adjust operation.

        A004V8TE03
        Text in Illustration
        *1 Disc Pad *2 Piston
        *3 Push Rod *4 Disc Rotor
        *5 Nut Sleeve - -

      6. When the hydraulic pressure rises further, the nut sleeve does not rotate and the push rod pushes down the spring. Over adjustment is prevented by the push rod sliding together with the piston, and the correct clearance between the disc pad and disc rotor is maintained.

        A004VAOE02
        Text in Illustration
        *1 Disc Pad *2 Piston
        *3 Push Rod *4 Disc Rotor
        *5 Nut Sleeve *6 Spring