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Reassembly [12/2019 - ]: Procedure

  1. TEMPORARILY TIGHTEN REAR DISC BRAKE BLEEDER PLUG 
    1. Temporarily install the rear disc brake bleeder plug to the rear disc brake cylinder.

      HINT: 

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

  2. INSTALL REAR DISC BRAKE BLEEDER PLUG CAP 
    1. Install the rear disc brake bleeder plug cap to the rear disc brake bleeder plug.
  3. INSTALL PISTON SEAL 
    1. Apply lithium soap base glycol grease to the entire circumference of a new piston seal.
      GTY866352Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Lithium Soap Base Glycol Grease
    2. Install the piston seal to the rear disc brake cylinder.
      NOTE:
      • Do not damage the inner surface or piston seal groove of the rear disc brake cylinder.
      • Do not allow the nut to rotate. If the nut is accidentally allowed to rotate, return it to its original position.
  4. INSTALL REAR DISC BRAKE PISTON 
    1. Apply a light layer of lithium soap base glycol grease to the entire circumference of a new cylinder boot.
      GTY933284Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Cylinder Boot
      *2 Rear Disc Brake Piston
      Lithium Soap Base Glycol Grease
    2. Apply a light layer of lithium soap base glycol grease to the contact surfaces of the rear disc brake piston.
    3. Install the cylinder boot to the rear disc brake piston.
      NOTE:

      The front and back sides of the cylinder boot are different. Make sure not to install the cylinder boot backwards.

      GTY891798Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front Side
      *b Back Side
    4. Install the rear disc brake piston to the rear disc brake cylinder.
      NOTE:
      • Install the rear disc brake cylinder so that its portions marked (A) fit into the indentations of the rear disc brake piston.
      • Do not forcibly install the rear disc brake piston into the rear disc brake cylinder.
      GTY918566Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Indentations
    5. Install the cylinder boot to the rear disc brake cylinder as shown in the illustration.
      NOTE:
      • Do not damage the cylinder boot.
      • Securely install the cylinder boot into the groove of the rear disc brake cylinder and groove of the rear disc brake piston.
      GTY908081Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Cylinder Boot
      *2 Rear Disc Brake Cylinder
      *3 Rear Disc Brake Piston
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