Troubleshooting Optical Sensor Calibration Issues

The following table will guide users in troubleshooting possible sensor calibration issues.

Problem:	Probable Cause	Solution:
Calibration is unsuccessful	Sensor misalignment	Check that optical sensors are properly installed
	Speed detected	Make sure the combine is stationary
	Grain elevator running too slow	Ensure threshing clutch is engaged and engine is running at normal operating speed
	Sensors aren't plugged in	Ensure both sensors are plugged in and lights are on

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