MacDon FD75 OM - Manual (Page 84)

OPERATION
To calibrate the Auto Header Height system, follow
these steps:
1. Set the flotation on the header and adapter package
(refer to operator’s manual for instructions). Position
fore-aft and center-link in mid span.
2. Combine engine should be running. There is no need
to have separator or feeder house engaged.
3. On right-hand console, set header control switch (A) to
"HT" (this is Auto Header Height mode).
Figure 4.60: Right-Hand Console
4. On the propulsion lever, hold the lower switch (A) down
until the adapter and header are lowered. Hold the
switch down for five seconds.
5. Engage header raise switch (A) and hold the header
raise switch up. The header should stop at about the
halfway point. Keep holding the header raise switch,
and the header will automatically rise until the feeder
reaches the top of its limitations. The Auto Header
Height system is now calibrated.
NOTE:
If float was set heavier to complete ground
calibration procedure, adjust to recommended
operating float after the calibration is complete.
Figure 4.61: Propulsion Lever
Case IH 7010/8010, 7120/8120/9120, and 7230/8230/9230 Combines
Checking Voltage Range from the Combine Cab (Case 8010)
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 check the sensor output voltage range from the combine cab for Universal Display, follow these steps:
169894 70 Revision A