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Home >> Toyota >> 2020 >> Mirai >> Repair and Diagnosis (Single Page) >> Brakes >> Mechanical - Hydraulic >> Brake System (Front) - Service Information >> Front Brake >> Reassembly [06/2015 - ] >> Procedure

Reassembly [06/2015 - ]: Procedure

  1. TEMPORARILY TIGHTEN FRONT DISC BRAKE BLEEDER PLUG 
    1. Install the front disc brake bleeder plug to the disc brake cylinder assembly.

      HINT: 

      Fully tighten the front disc brake bleeder plug after bleeding the system.

  2. INSTALL FRONT DISC BRAKE BLEEDER PLUG CAP 
    1. Install the front disc brake bleeder plug cap to the front disc brake bleeder plug.
  3. INSTALL PISTON SEAL 
    1. Apply a light layer of lithium soap base glycol grease to the entire circumference of a new piston seal.
      GTY604584Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Lithium Soap Base Glycol Grease
    2. Install the piston seal to the disc brake cylinder assembly.
      GTY576431Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Piston Seal
      *2 Disc Brake Cylinder Assembly
  4. INSTALL FRONT DISC BRAKE PISTON 
    1. Apply a light layer of lithium soap base glycol grease to the entire circumference of a new cylinder boot.
      GTY584304Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Cylinder Boot
      *2 Front Disc Brake Piston
      Lithium Soap Base Glycol Grease
    2. Apply a light layer of lithium soap base glycol grease to the entire circumference of a front disc brake piston.
    3. Install the cylinder boot to the front disc brake piston.
      NOTE:

      Securely install the cylinder boot into the groove of the disc brake piston.

      GTY590773Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Cylinder Boot
      *2 Front Disc Brake Piston
    4. Apply a light layer of lithium soap base glycol grease to the contact surfaces of the front disc brake piston, and install it to the disc brake cylinder assembly.
      NOTE:

      Do not forcibly install the front disc brake piston into the disc brake cylinder assembly.

    5. Install the cylinder boot to the disc brake cylinder assembly.
      NOTE:

      Securely install the cylinder boot into the groove of the front disc brake piston.

      GTY544328Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Cylinder Boot
      *2 Set Ring
      *3 Disc Brake Cylinder Assembly
      *4 Front Disc Brake Piston
      *a Protective Tape
    6. Using a screwdriver with its tip wrapped with protective tape, install a new set ring.
      NOTE:

      Be careful not to damage the cylinder boot.