Replacing the Motor

  1. Disconnect the magnetron (Disconnecting the Magnetron).
  2. Remove the magnetron (Removing the Magnetron).
  3. Remove the antenna position sensor board (Removing the Antenna Position Sensor Board).
  4. Remove the LNC and the circulator/waveguide assembly (Removing the LNC and the Circulator).
  5. Remove the four screws securing the electronics box to the housing.
  6. Slide the electronics box partly out of the housing, so you can safely disconnect the motor cable from the electronics box.
  7. Remove the motor (Removing the Motor).
  8. Install the new motor (Reinstalling the Motor).
  9. Slide the electronics box back into place, and secure it to the housing using the 4 mounting screws.
  10. Reinstall the circulator/waveguide assembly and the LNC (Reinstalling the LNC and the Circulator).
  11. If you had to remove the magnetron, reinstall it (Reinstalling the Magnetron).
  12. Connect the magnetron ground cable from the new electronics box to the bottom right magnetron cover mounting screw.
  13. Connect the magnetron cable to the electronics box.
  14. Connect any remaining cables to the electronics box.
  15. Install a new cable tie to secure the cables to the boss that supports the left side of the electronics box.
GUID-E0CF67E5-B8D5-4CBB-8E06-00CC9CEB7DE9 v1
November 2025