MacDon FD75 OM - Manual (Page 138)

OPERATION
7. Raise the feeder house all the way up. This will allow
the graph to go to 25% (A).
8. Lower the feeder house all the way down until header
stops moving. Ensure header float is unlocked. The
graph will now be at 50%.
9. Raise the feeder house (a second time) all the way
up.This will allow the graph to go to 75%.
10. Lower the feeder house all the way down until header
stops moving.The graph will now be at 100%.
Figure 4.171: Combine Display, Console, and
Propulsion Lever
11. Once the calibrations are complete, the graph
will indicate the unit is calibrated successfully by
showing 100% (A).
NOTE:
At any time through the calibration, if the voltage
is not within the voltage settings (0.5–4.5 volts)
the monitor will indicate learning procedure not
concluded.
NOTE:
If the float is set to light, an error will appear. Back
float off three more turns on the coil springs. This
should make float around 100–125 lbs.
12. The calibration procedure is now complete.
Figure 4.172: Combine Display, Console, and
Propulsion Lever
Setting Cutting Height (Lexion 700 Series)
To set cutting height, follow these steps:
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.
To set cutting height, follow these steps:
1. Lower the header to desired cutting height or ground
pressure setting. The indicator on the float indicator
box (white box on top of the CA25 adapter) should be
set to 1.5.
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