John Deere 1493 – E00: Tailings System Calibration Out of Range High

The tailings system calibration is out of range high, indicating that the sensor detectors are receiving too little light. This condition suggests a blockage or a fault in the sensor system, preventing it from accurately measuring the volume of material in the tailings elevator. An incorrect seed size setting in the combine's operational parameters can also lead to inaccurate tailings volume readings.

• S430
• S440
• S540
• S550
• S650
• S660
• S670
• S670H
• S680
• S680H
• S685
• S685H
• S690
• S690H
• S760
• S770
• S780
• S785
• S790
• 9560 STS
• 9570 STS
• 9650 STS
• 9660 STS
• 9670 STS
• 9750 STS
• 9760 STS
• 9770 STS
• 9860 STS
• 9880 STS
• 9540
• 9560
• 9580
• 9640
• 9660 WTS
• 9680
• T550
• T560
• T660
• T670
• W540
• W550
• W650
• W660
• 9450
• 9550
• 9650
• 9660
• 9670
• 9780
• C670
• Amadas 9960 SP
• X9 1000
• X9 1100

1. 1

   Verify the correct seed size is selected in the combine's settings, as a wrong setting can cause inaccurate readings.

2. 2

   Perform an operational check: With the header and separator engaged, observe the tailings volume on the display.

3. 3

   If the bar graph shows a high volume, slow the combine's ground speed to see if the reading returns to an acceptable range.

4. 4

   Disengage and then re-engage the header; the bar graph should zero out and then return to the acceptable range.

5. 5

   Check for consistent full or empty readings on the display when not harvesting or while harvesting, which strongly indicates a sensor issue.

1. 1

   Power down and unplug

   Turn off the combine and disconnect the electrical connector from the tailings sensor.

2. 2

   Remove the sensor

   Remove the tailings sensors from the elevator for inspection.

3. 3

   Inspect and clean lenses

   Check the sensor lenses for dirt, dust, or other material. Clean the lenses as needed.

4. 4

   Check for dust under the lens

   If the lenses are already clean, remove the lens to inspect for dust that may have gotten past the gasket.

5. 5

   Thoroughly clean internal area

   If dust is found internally, clean the area completely.

6. 6

   Reassemble and reinstall

   Reassemble the lens, ensuring the gasket creates a proper seal. Reinstall the sensor on the elevator.

7. 7

   Recalibrate and test

   After cleaning and reinstallation, recalibrate the tailings system. Test the system to see if the fault code clears and the monitor displays correctly.

8. 8

   Replace sensor

   If the problem persists after thorough cleaning and recalibration, the sensor has likely failed and needs to be replaced.