Toyota Sienna Service Manual: Inspection

Toyota Sienna Service Manual / Brake control / Rear disc brake / Inspection

1. INSPECT BRAKE CYLINDER AND PISTON

(a) Check the brake cylinder bore and rear disc brake piston for rust or scoring.

2. INSPECT PAD LINING THICKNESS

INSPECT PAD LINING THICKNESS

(a) Using a ruler, measure the pad lining thickness.

Standard thickness: 11.0mm (0.433 in.) Minimum thickness: 1.0 mm (0.039 in.)

3. INSPECT REAR DISC BRAKE PAD SUPPORT PLATE

(a) Inspect the rear brake disc pad support plate (No. 1) and rear brake disc pad support plate (No. 2). Make sure that they have sufficient rebound, no deformation, cracks or wear, and have had all rust and dirt cleaned off.

4. INSPECT DISC THICKNESS

(a) Using a micrometer, measure the disc thickness.

Standard thickness: 12.0mm (0.472 in.) Minimum thickness: 10.5 mm (0.413 in.)

Disassembly

1. REMOVE CYLINDER BOOT (a) Using a screwdriver, remove the set ring and cylinder boot. 2. REMOVE REAR DISC BRAKE PISTON (a) Place a shop rug, between the rear disc brake piston and the disc ...

Reassembly

1. INSTALL REAR DISC (a) Aligning the matchmarks, install the rear disc. HINT: Select the installation position where the disc has the minimum runout. 2. INSPECT DISC RUNOUT (a) Temporarily ...

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