1. Remove the jogger unit. Jogger Unit Removal
  2. The front fence sensor and rear fence sensor are mounted on the sensor bracket at the center of the unit.
  3. Remove the top cover.
  4. Disconnect the sensor bracket.
  5. Disconnect the sensors.
  6. Disconnect the sensors from the sensor bracket.
  7. The sensors are identical, but when you reconnect them, connect the Black connector at B and the White connector at W.