Service Procedures6H4866-02 77Left Limit Sensor ReplacementTools Required3.0 mm Allen wrench2.5 x 100 mm cable tiesCutterRemoving the Left Limit Sensor[1] Disconnect he Scanner from the main power.[2] Remove the Main Cover (see “Removing the Service Panel and Scanner Cover” on Page 41).Left Limit Sensor Connector[3] Disconnect the Sensor Cable from the Connector Panel.[4] Mark the location of the sensor.Left Limit Sensor Screws[5] Remove the two screws attaching the sensor to the sensor bracket, and remove the sensor.Replacing the Left Limit Sensor[1] Position the sensor bracket according to the marked location and insert the two screws.[2] Connect the Sensor Cable to the Connector Panel.