Mazda CX-9 Grand Touring. Manual — part 136

2. After tightening all the hub nuts to the same torque, put the dial gauge on the friction surface of disc plate

10 mm {0.39 in} from the disc plate edge.

3. Rotate the disc plate one time and measure the runout.

Rear disc plate runout limit 0.05 mm {0.002 in}

Thickness variation inspection

1. Clean the disc plate-to-pad friction surface using a brake cleaner.

2. Measure the points indicated in the illustration using a caliper (micrometer).

3. Subtract the minimum value from the maximum.



If the result is not within specification, machine the disc plate using a lathe.

Thickness variation limit 0.015 mm {0.0005 in}

DISC PLATE THICKNESS INSPECTION

1. Measure the thickness of the disc plate.



If the thickness is not within the specification, replace the disc plate.

Minimum rear disc plate thickness 16 mm {0.63 in}

NOTE:



The component parts of the SST (49 B017 001 or 49 G019 003) can be
used as a suitable washer.

WARNING:



Do not exceed minimum disc plate thickness.

Fig. 31: Identifying Disc Plate Points
Courtesy of MAZDA MOTORS CORP.

CAUTION:



Excessive runout may result if the disc plate is removed from the
vehicle then machined. Machine the disc plate while installed on the
vehicle.

2008 Mazda CX-9 Grand Touring

2008 BRAKES Conventional Brake System - Mazda CX-9

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Minimum rear disc plate thickness after machining using a brake lathe on-vehicle 16.8 mm
{0.66 in}

DISC PAD THICKNESS INSPECTION

1. Jack up the rear of the vehicle and support it with safety stands.

2. Remove the wheels.

3. Verify the remaining thickness of the pads.



Replace the pads as a set: right and left wheels, if either one is at or less than the minimum
thickness.

Minimum rear disc pad thickness 2.0 mm {0.08 in}

Fig. 32: Locating Disc Pad Thickness
Courtesy of MAZDA MOTORS CORP.

REAR BRAKE (DISC) REMOVAL/INSTALLATION

1. Remove in the order indicated in the table.

2. Install in the reverse order of removal.

3. After installation, add brake fluid, bleed the air, and inspect for fluid leakage. (See AIR BLEEDING.)

4. After installation, do the following.

1. Depress the brake pedal a few times. Then verify that the brakes do not drag.

2. Inspect the parking brake pedal stroke. (See PARKING BRAKE INSPECTION .)

2008 Mazda CX-9 Grand Touring

2008 BRAKES Conventional Brake System - Mazda CX-9

Microsoft

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© 2005 Mitchell Repair Information Company, LLC.

Fig. 33: Identifying Rear Brake Components (Disc) & Torque Specifications
Courtesy of MAZDA MOTORS CORP.

DISC PLATE REMOVAL NOTE

1. If any disc plate is difficult to remove, perform the following steps to remove it.

1. Insert a flathead screwdriver into the service hole and turn the adjuster in the direction of the arrow

to compress the parking brake shoe.

2. Remove the disc plate.

2008 Mazda CX-9 Grand Touring

2008 BRAKES Conventional Brake System - Mazda CX-9

Microsoft

Sunday, November 15, 2009 9:48:49 AM

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© 2005 Mitchell Repair Information Company, LLC.

Fig. 34: Removing Disc Plate
Courtesy of MAZDA MOTORS CORP.

DISC PLATE, SCREW INSTALLATION NOTE

1. Install the disc plate and the screws.

2. Perform the following steps to adjust the shoe clearance after installing the disc plate and the screws.

1. Insert a flathead screwdriver into the service hole and turn the adjuster in the direction of the arrow

to expand the parking brake shoe until the disc plate cannot rotate.

2008 Mazda CX-9 Grand Touring

2008 BRAKES Conventional Brake System - Mazda CX-9

Microsoft

Sunday, November 15, 2009 9:48:49 AM

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© 2005 Mitchell Repair Information Company, LLC.