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Home >> Lexus >> 2019 >> GS F >> Repair and Diagnosis >> Maintenance >> Procedures >> Maintenance (Service Information) >> Rear Disc Brake Pad >> Installation [10/2015 - ] >> Procedure

Installation [10/2015 - ]: Procedure

  1. INSTALL REAR DISC BRAKE ANTI-SQUEAL SHIM KIT 
    1. Apply a light coat of disc brake grease to the rear disc brake pads as shown in the illustration.
      GTY515039Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Grease
      NOTE:
      • When applying disc brake grease, use the grease enclosed with a rear disc brake pad kit or supplied grease (Part No. 90998-94072) or equivalent.
      • There should be no oil or grease on the friction surfaces of the pads and the disc.
    2. Install the rear disc brake anti-squeal shim to each rear disc brake pad.
      GTY518303Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Rear Disc Brake Anti-squeal Shim
      NOTE:

      When replacing the rear disc brake pads with new ones, make sure to replace the rear disc brake anti-squeal shim kit at the same time.

  2. INSTALL REAR DISC BRAKE PAD 
    1. Using SST, push in the rear disc brake piston.
      • SST: 09719-77020 
      NOTE:
      • Make sure the brake fluid does not overflow from the reservoir.
      • Do not forcibly push in the rear disc brake piston.
      GTY659735Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Check the shape of the rear disc brake pad.
      GTY499494Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *A for RH side Caliper *B for LH side Caliper
      *1 Outer Pad *2 Inner Pad
      Up - -
    3. Install the pad wear indicator wire assembly to the rear disc brake pad (inner) with a new pad wear indicator retainer.
      NOTE:

      When replacing the rear disc brake pads with new ones, make sure to replace the pad wear indicator wire assembly and pad wear indicator retainer at the same time.

    4. Install the 2 rear disc brake pads to the rear disc brake cylinder assembly.
      GTY505971Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Notch
      NOTE:

      The rear disc brake pad with the pad wear indicator wire assembly must be installed to the inside position.

    5. Insert the pad wear indicator wire assembly to the notch of the rear disc brake cylinder assembly.
    6. Connect the bleeder plug cap portion of the pad wear indicator wire assembly to the rear disc brake bleeder plug.
      GTY497158Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    7. Install the pad wear indicator wire assembly to the 2 clamps of the rear disc brake dust cover.
    8. Connect the pad wear indicator wire connector to the rear speed sensor.
      GTY519646Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    9. GTY507280Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Install the rear disc brake anti-rattle spring to the rear disc brake cylinder assembly.

    10. While pushing the rear disc brake anti-rattle spring as shown in the illustration, install the 2 pad guide pins to the rear disc brake cylinder assembly.
    11. GTY497164Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Using a hammer, install the pad guide pin (lower) by tapping the head of the pad guide pin (lower) until the ring is seated in the rear disc brake cylinder assembly.

      NOTE:
      • Do not damage the surface of the rear disc brake cylinder assembly.
      • Make sure that the ring of the pad guide pin (lower) is securely engaged with the rear disc brake cylinder assembly.
      • Make sure that the rear disc brake anti-rattle spring (lower) is securely installed into the grooves of the pad guide pin (lower).
    12. Using a hammer, install the pad guide pin (upper) by tapping the head of the pad guide pin (upper) until the ring is seated in the rear disc brake cylinder assembly.
      NOTE:
      • Do not damage the surface of the rear disc brake cylinder assembly.
      • Make sure that the ring of the pad guide pin (upper) is securely engaged with the rear disc brake cylinder assembly.
      • Make sure that the rear disc brake anti-rattle spring (upper) is securely installed into the grooves of the pad guide pin (upper).
      GTY497160Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. INSPECT BRAKE FLUID LEVEL IN RESERVOIR 

    Refer to ON-VEHICLE INSPECTION [10/2015 - ]

  4. INSTALL REAR WHEEL 

    See step  1