MacDon FD75 OM User Manual
Page 104
5.
Press the ENTER button (C).
6.
Press the UP (A) or DOWN button (B) until 24 is displayed on the top portion of the monitor. This is the voltage
reading of the sensor.
7.
Ensure header float is unlocked.
8.
Start the combine, lower feeder house to the ground until the feeder house stops moving.
NOTE:
You may need to hold the header down switch for a few seconds to ensure the feeder house is
entirely down.
9.
Check the sensor reading on the monitor.
10. Raise the header so it is just off the ground, check the sensor reading again.
11. If the sensor voltage is not within the low and high limits, refer to
Height Sensor Output Voltage Range –
, 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.
Calibrating the Auto Header Height System (John Deere 50 Series)
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.
1.
Rest header on down stops, and unlock adapter float.
2.
Put wings in locked position.
3.
Start the combine.
4.
Press the diagnostic button on the monitor (this is the
button with the open book with the wrench on top of it
(A) dIA appears on the monitor.
5.
Press the CAL button (B) DIA - CAL appears on
the monitor.
Figure 4.99: Combine Display
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Revision A