MacDon FD75 OM - Manual (Page 105)

OPERATION
6. Press the UP or DOWN buttons until hdr appears on
the monitor.
7. Press the enter button, hdr H-dn appears on
the monitor.
Figure 4.100: Combine Display
8. Lower the feeder house all the way (after the header
hits the ground you will have to continue to hold
the header lower button for 5–8 seconds in order to
accomplish this).
9. Once the feeder house is all the way down, press the
CAL button (A). This will save the lower calibration in
the computer, hdr H-UP appears on the monitor.
10. Raise the header 3 feet off the ground, and again press
the CAL (A) button. EOC appears on the monitor.
Press the enter button (B) to save the calibration of the
header. Your Auto Header Height is now calibrated.
Figure 4.101: Combine Display
NOTE:
If the sensor voltage is not within the low and
high limits, refer to
Height Sensor Output Voltage
Range – Combine Requirements, page 58 , or
if the range between the low and high limits
is insufficient, you need to make adjustments.
Refer to
Adjusting Voltage Limits, page 60
for instructions.
After the calibration is complete, specific combine
operation settings need to be made to ensure proper
field operation.
169894 91 Revision A