MacDon D1 Series - Calibrating the Auto Header Height Control - John Deere S and T Series

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Calibrating the Auto Header Height Control – John Deere S and T Series
For best performance of the auto header height control (AHHC), perform these procedures with the center-link set to D.
When setup and calibration are complete, adjust the center-link back to desired header angle. For instructions, refer to
Header Angle in the header operator’s manual.
NOTE:
Changes may have been made to the combine controls or display since this document was published. Refer to the combine
operator’s manual for updates.
NOTE:
If header float is set too light, it can prevent calibration of AHHC. You may need to set the float heavier for calibration
procedure so header doesn’t separate from the float module.
1. Ensure center-link is set to D.
2. Rest header on down stops and unlock float.
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Figure 9.282: John Deere Combine Display
3. Press DIAGNOSTIC icon (A) on the main screen of the
monitor. The CALIBRATION screen appears.
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Figure 9.283: John Deere Combine Display
4. Select THRESHING CLEARANCE (A) and a list of calibration
options appears.
SETTING UP AUTO HEADER HEIGHT CONTROL