MacDon FD75 OM - Manual (Page 83)

OPERATION
1. In combine, turn mode select switch (A) to HT.
2. Turn feeder ON.
3. Push header LOWER switch.
In Automatic Header Height Control, the system raises and
lowers the header to maintain a fixed distance from the
ground. The POSITION CONTROL (B) sets the height to
maintain the header from the ground.
Figure 4.57: Combine Controls
The rate at which the header raises or lowers to maintain
the ground height is controlled by the HEADER RAISE
RATE (A) and HEADER LOWER RATE (B) control settings.
Figure 4.58: Combine Controls
In this mode the SENSITIVITY CONTROL (A) sets
how
sensitive the header control is to changing
ground conditions.
Figure 4.59: Combine Controls
Calibrating the Auto Header Height System (Case IH 2300/2500)
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.
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