Rear Brake Caliper Installation Note

Clean the exposed area of the piston.
CAUTION:
- When pressing the piston into the rear brake caliper, the rear brake caliper internal parts could be damaged while rotating and pressing the piston. Be careful not to rotate the piston when pressing the piston into the rear brake caliper.
Press in the piston using a commercially available disc brake expander tool.

Fig 1: Pressing Piston Using Commercially Available Disc Brake Expander Tool
Courtesy of MAZDA MOTORS CORP.
Verify that the piston grooves are at the positions shown in the figure.

Fig 2: Locating Piston Grooves
Courtesy of MAZDA MOTORS CORP.
- If the piston grooves are not at the positions shown in the figure, rotate the piston clockwise slowly using the SST and adjust the piston grooves at the positions shown in the figure.
Fig 3: Rotating Piston Clockwise Using SST
Courtesy of MAZDA MOTORS CORP.
Return the rear brake caliper to the original position and install the bolt.

Fig 4: Installing Rear Brake Caliper Bolt
Courtesy of MAZDA MOTORS CORP.