Continuity Check
- Check Armature For Shorting - Check continuity between commutator and armature coil core. See Fig 1 . No continuity should exist. Replace armature if continuity exists. See OVERHAUL .
- Check Armature For An Open - Check continuity between individual brush segments at commutator end of armature. See Fig 1 . Continuity should exist between each individual brush segment. Replace armature if no continuity exists on any brush segment. See OVERHAUL .