MacDon PW8 - Calibrating Auto Header Height Control (John Deere 60 Series)

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6. Start the combine and lower the feeder house to the ground. Keep doing this until the feeder house stops moving.
NOTE:
You may need to hold the HEADER DOWN switch for a few seconds to ensure that the feeder house is fully lowered.
7. Check the sensor reading on the monitor.
8. Raise the header so that it is just off the ground and check the sensor reading again.
9. If the sensor voltage is not within the low and high limits shown in 4.4 Height Sensor Output Voltage Range – Combine
Requirements, page 111 , or if the range between low and high limits is insufficient, you will need to adjust the height
sensors. For instructions, refer to 4.4.2 Adjusting Header Height Sensor Voltage Range – Left Side, page 114 and 4.4.3
Adjusting Header Height Sensor Voltage Range – Right Side, page 114.
4.11.2 Calibrating Auto Header Height Control (John Deere 60 Series)
The auto header height control (AHHC) sensor output must be calibrated for John Deere 60 series combines, or the AHHC
feature will not work properly.
NOTE:
Changes may have been made to the combine controls or the display since this document was published. Refer to the
combine operator’s manual for updated information.
DANGER
Check to be sure all bystanders have cleared the area.
1. Start the combine.

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Figure 4.145: John Deere Combine Display
2. Press DIAGNOSTIC button (A) on the monitor. DIA appears
on the monitor.
3. Press CAL button (B). DIA-CAL appears on the monitor.
AUTO HEADER HEIGHT CONTROL