Rotor: Testing and Inspection

Rotor




1. Measure resistance between slip rings with a ohmmeter. If it is not within standard resistance, replace rotor.

Standard resistance: 3.5-4.5 Ohms




2. Check for continuity between slip ring and core with a circuit tester. Replace rotor if there is continuity.
3. If slip ring surface is rough, smooth with a lathe or fine sandpaper.