Front Brake Reassembly

Brake. Lexus Gs430, Gs300. Uzs190 Grs190
Brake. Lexus Gs430, Gs300. Uzs190 Grs190

  1. INSTALL FRONT DISC

  2. TEMPORARILY TIGHTEN FRONT DISC BRAKE BLEEDER PLUG

  3. INSTALL PISTON SEAL

  4. INSTALL FRONT DISC BRAKE PISTON

  5. INSTALL CYLINDER BOOT

Front Brake -- Reassembly



1. INSTALL FRONT DISC


    Lexus Gs430, Gs300. Uzs190 Grs190.Brake.Brake System.Front Brake Reassembly

  1. Align the matchmarks, and install the front disc.

    HINT:
    When replacing the disc with a new one, select the installation position where the front disc has the minimum runout.


2. TEMPORARILY TIGHTEN FRONT DISC BRAKE BLEEDER PLUG

  1. Temporarily tighten the front disc brake bleeder plug to the disc brake cylinder assembly.



3. INSTALL PISTON SEAL


    Lexus Gs430, Gs300. Uzs190 Grs190

  1. Apply lithium soap base glycol grease to a new piston seal.

  1. Install the piston seal to the disc brake cylinder assembly.



4. INSTALL FRONT DISC BRAKE PISTON


    Lexus Gs430, Gs300. Uzs190 Grs190

  1. Apply lithium soap base glycol grease to the front disc brake piston and a new cylinder boot.

  1. Install the cylinder boot to the front disc brake piston.

  1. Install the piston to the front disc brake cylinder assembly.

    NOTICE:
    Do not install the piston forcibly in the disc brake cylinder.


5. INSTALL CYLINDER BOOT


    Lexus Gs430, Gs300. Uzs190 Grs190

  1. Install the cylinder boot to the front disc brake cylinder.

    NOTICE:
    1. Install the boot securely to the grooves of the cylinder and piston.
    2. Do not damage the cylinder boot.