Rotor: Testing and Inspection
ROTOR1. Check the rotor coil for continuity. Check to make sure that there is continuity between the slip rings.
If resistance is extremely low, it means that there is a short. If there is no continuity or if there is a short circuit, replace the rotor assembly.
Resistance value: Approx. 2.7 ohm
2. Check the rotor coil for a ground. Check to make sure that there is no continuity between slip the ring and the core.
If there is continuity, replace rotor assembly.