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Inspection [12/2013 - ]: Procedure

  1. INSPECT BRAKE CYLINDER AND PISTON 
    1. Check the rear disc brake cylinder bore and rear disc brake piston for rust and scoring. If necessary, replace the rear disc brake cylinder assembly and rear disc brake piston.
  2. INSPECT PAD LINING THICKNESS 
    1. Using a ruler, measure the rear disc brake pad lining thickness.

      Standard Thickness

      10.0 mm (0.394 in.)

      Minimum Thickness

      1.0 mm (0.0394 in.)

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

      HINT: 

      Be sure to check rear disc thickness when replacing the rear disc brake pads with new ones.

      GTY443890Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Ruler
  3. INSPECT REAR DISC BRAKE PAD SUPPORT PLATE 
    1. Make sure that the rear disc brake pad support plates have sufficient rebound, no deformation, cracks or wear, and that all rust and dirt is cleaned off. If necessary, replace the rear disc brake pad support plates.
  4. INSPECT DISC THICKNESS 
    1. Using a micrometer, measure the rear disc thickness.
      GTY447822Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Micrometer

      Standard Thickness

      10.0 mm (0.394 in.)

      Minimum Thickness

      8.5 mm (0.335 in.)

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

  5. INSPECT DISC RUNOUT 
    1. Inspect the rear axle hub bearing looseness and rear axle hub runout.

      Refer to ON-VEHICLE INSPECTION [12/2013 - ]

    2. Using SST to hold the rear disc, tighten the rear disc with the 5 hub nuts.
      • SST: 09330-00021 

      Torque: 103 N*m (1050 kgf*cm, 76 ft.*lbf) 

      GTY448876Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Using a dial indicator, measure the disc runout 10 mm (0.394 in.) from the outer edge of the rear disc.

      Maximum Disc Runout

      0.15 mm (0.00591 in.)

      NOTE:

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

      GTY445648Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Dial Indicator

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

    4. Remove the 5 hub nuts and rear disc.