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Figure 4.230: John Deere Combine Display
8. Follow the instructions that appear on the combine display.
NOTE:
If an error code appears during calibration, the output from
the height sensor is out of the specified voltage range and
will require adjustment. For instructions, refer to 4.17.1
Checking Voltage Range from Combine Cab – John Deere S
and T Series, page 240.
4.17.3 Calibrating Auto Header Height Control – John Deere S and T Series
The auto header height control (AHHC) sensor output must be calibrated for John Deere S and T Series combines, or the
AHHC feature will not work properly.
To ensure the best performance of the AHHC system, perform these procedures with the center-link set to D. When the
setup and calibration procedures are complete, adjust the center-link back to the desired header angle. For instructions,
refer to 3.7.4 Header Angle, page 78.
NOTE:
Changes may have been made to combine controls or display since this document was published. Refer to combine
operator’s manual for updates.
1. Ensure that the center-link is set to D.
2. Rest the header on the down stops and unlock the adapter float.
3. Place the wings in the locked position.
Figure 4.231: John Deere Combine Display
4. Press DIAGNOSTIC icon (A) on the main page of monitor.
The CALIBRATION page appears.
AUTO HEADER HEIGHT CONTROL
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