FRONT BRAKE INSPECTION

  1. INSPECT BRAKE CYLINDER AND PISTON

    1. Check the front disc brake cylinder bore and front disc brake piston for rust and scoring. If necessary, replace the disc brake cylinder assembly and/or front disc brake piston.

  2. INSPECT PAD LINING THICKNESS

    1. Using a ruler, measure the pad lining thickness.

      A011YRYE01
      Text in Illustration
      *1 Ruler
      Standard thickness
      12.0 mm (0.472 in.)
      Minimum thickness
      1.0 mm (0.0394 in.)

      If the pad lining thickness is less than the minimum, replace the front disc brake pads.

      Tech Tips

      Be sure to check the wear of the front disc when replacing the front disc brake pads.

  3. INSPECT FRONT DISC BRAKE PAD SUPPORT PLATE

    1. Make sure that the front disc brake pad support plates have sufficient rebound, no deformation, cracks or wear, and that all rust and dirt are cleaned off.

      If necessary, replace the front disc brake pad support plates.

  4. INSPECT DISC THICKNESS

    1. Using a micrometer, measure the disc thickness.

      A011WKJE01
      Text in Illustration
      *1 Micrometer
      Standard thickness
      28.0 mm (1.10 in.)
      Minimum thickness
      25.0 mm (0.984 in.)

      If the disc thickness is less than the minimum, replace the front disc.

  5. INSPECT DISC RUNOUT

    1. Inspect the front axle hub bearing looseness and front axle hub runout Click here.

    2. Using SST to hold the disc, tighten the disc with the 5 nuts.

      SST
      09330-00021
      A011XQAE01
      Torque:
      103 N*m  { 1049 kgf*cm, 76 ft.*lbf }

    3. Using a dial indicator, measure the disc runout 10 mm (0.394 in.) away from the outer edge of the front disc.

      A011XW4E01
      Text in Illustration
      *1 Dial Indicator
      Maximum disc runout
      0.05 mm (0.00197 in.)

      Note

      Keep the magnet of the dial indicator away from the axle hub and speed sensor.

      If the runout exceeds the maximum value, change the installation position of the disc to minimize the runout. If the runout exceeds the maximum even when the installation position is changed, grind the front disc. If the front disc thickness is less than the minimum, replace the front disc.

    4. Remove the 5 nuts and front disc.