Inspection [10/2014 - ]: Procedure

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 and/or rear disc brake piston.

INSPECT PAD LINING THICKNESS

Using a ruler, measure the pad lining thickness.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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Ruler

Standard thickness

10.5 mm (0.413 in.)

Minimum thickness

1.0 mm (0.0394 in.)

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

HINT:

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

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 are removed.
  If necessary, replace the rear disc brake pad support plates.

INSPECT DISC THICKNESS

Using a micrometer, measure the disc thickness.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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*1	Micrometer

Standard thickness

10.0 mm (0.394 in.)

Minimum thickness

8.5 mm (0.335 in.)

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

INSPECT DISC RUNOUT

Inspect the rear axle hub bearing looseness and axle hub runout (Refer to ON-VEHICLE INSPECTION [10/2014 - ] ).

While holding the rear disc using SST, tighten the disc with the 5 hub nuts.

SST: 09330-00021

Torque: 103 N*m (1049 kgf*cm, 76 ft.*lbf)

Using a dial indicator with magnetic base, measure the disc runout 10 mm (0.394 in.) from the outer edge of the rear disc.

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*1	Dial Indicator

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.

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

Remove the 5 nuts and rear disc.