Alternator & Regulator: Brushes

Replace brushes if worn to limit line. See Fig 6 thru Fig 10 . Replace brush springs if corroded. For brush replacement procedure, see OVERHAUL.

Fig 1: Testing Rectifier Diodes (B220, B2600I, Miata & MPV)

Courtesy of MAZDA MOTORS CORP.

Fig 2: Testing Rectifier Diodes (MX-3, MX-6, RX7, 626, 929)

Courtesy of MAZDA MOTORS CORP.

Fig 3: Testing Rectifier Diodes (Protege & 323)

Courtesy of MAZDA MOTORS CORP.

Fig 4: Testing Rectifier Diodes

Courtesy of MAZDA MOTORS CORP.

Fig 5: Testing Rectifier Diodes

Courtesy of MAZDA MOTORS CORP.

Fig 6: Checking Stator For Shorts

Courtesy of MAZDA MOTORS CORP.

Fig 7: Checking Stator Winding Continuity

Courtesy of MAZDA MOTORS CORP.

Fig 8: Measuring Brush Wear

Courtesy of MAZDA MOTORS CORP.

Fig 9: Checking Rotor For Shorts

Courtesy of MAZDA MOTORS CORP.

Fig 10: Checking Rotor Resistance

Courtesy of MAZDA MOTORS CORP.