MX-6, Protege, 323 & 626

Raise and support rear of vehicle. Remove wheel. Release parking brake. Remove lock nut from axle shaft. Remove brake drum. Insert screwdriver between adjusting plate and quadrant. Twist screwdriver to disengage teeth. See Fig 1 or Fig 2 .

Fig 1: Moving Quadrant on Rear Brake Adj. (MX-6 & 626)
Courtesy of MAZDA MOTORS CORP.

Fig 2: Moving Quadrant on Rear Brake Adj. (Typical Protege & 323)
Courtesy of MAZDA MOTORS CORP.
Push adjusting lever toward backing plate. Install brake drum. Install new lock nut, and secure by crimping. Operate parking brake a few times to reset adjuster. Adjust parking brake.