Front Brake Pad, Brake Caliper & Brake Rotor: Disassembly

HINT:

• Use the same procedures for the LH side and RH side.
• The procedures listed below are for the LH side.
  Fig 1: Identifying Matchmarks On Front Disc And Axle Hub

  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. REMOVE FRONT DISC BRAKE PISTON SET RING 
   1. Using a screwdriver, remove the 4 set rings from the 4 cylinder boots

      HINT:

      Tape the screwdriver tip before use.

2. REMOVE CYLINDER BOOT 
   1. Using a screwdriver, remove the 4 cylinder boots from the disc brake caliper.

      HINT:

      Tape the screwdriver tip before use.

      Fig 2: Removing Set Rings From Cylinder Boots

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. REMOVE FRONT DISC BRAKE PISTON 
   1. Install one side of the disc brake pad.
   2. Install a wooden plate between the pistons of the disc brake caliper to prevent the pistons from jumping out.
   3. Using an air gun, gradually apply air and remove the 2 disc brake pistons from the cylinder.
      CAUTION: Do not place your fingers in front of the pistons when using air gun.
      Fig 3: Applying Air And Removing Disc Brake Pistons From Cylinder

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   4. Remove the brake pad and wooden plate.
   5. Temporarily install the 2 disc brake pistons that were removed. Then install the disc brake pad to the side in which the 2 disc brake pistons are temporarily installed.
   6. Install a wooden plate between the pistons of the disc brake caliper to prevent the pistons from jumping out.
   7. Using an air gun, gradually apply air and remove the 2 disc brake pistons from the other side of the cylinder.
      CAUTION: Do not place your fingers in front of the pistons when using air gun.
4. REMOVE PISTON SEAL 
   1. Using a screwdriver, remove the 4 piston seals from the disc brake caliper.

      HINT:

      Tape the screwdriver tip before use.

      NOTE: Do not damage the inner cylinder and cylinder groove.
      Fig 4: Removing Piston Seals From Disc Brake Caliper

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
5. REMOVE FRONT DISC BRAKE BLEEDER PLUG CAP 
6. REMOVE FRONT DISC BRAKE BLEEDER PLUG