Bench Testing: Rotor

Ensure rotor bearings rotate smoothly. Using ohmmeter, check continuity between slip rings and rotor, individually. Check continuity between slip rings and rotor shaft, individually. See Fig 1 . If continuity exists, replace rotor. Check continuity between slip rings. If continuity does not exist, replace rotor.

Fig 1: Identifying Rotor Components

Courtesy of AMERICAN HONDA MOTOR CO., INC.