Setting Sensitivity Of Auto Header Height Control - MacDon FFT FD75 Assembly Instructions Manual

NOTE:
The ideal ground pressure—in most cases—is one
number (on float indicator box) above header
suspended off ground. For example, if float indicator
needle (B) is positioned at 0 with header suspended off
ground, then ideal ground pressure will be achieved
with needle positioned at 1 (A). Operating with heavier
pressures can wear cutterbar wearplate prematurely.
Setting Sensitivity of Auto Header Height Control (Case IH 2300/2500 and 5088/6088/7088)
The sensitivity adjustment controls distance cutterbar must travel up or down before auto header height control
(AHHC) reacts and raises or lowers feeder house. When sensitivity is set to maximum, only small changes in
ground height are needed to cause feeder house to raise or lower. When sensitivity is set to minimum, large
changes in ground height are needed to cause feeder house to raise or lower.
NOTE:
Changes may have been made to combine controls or display since this document was published. Refer to
combine operator's manual for updates.
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SETTING UP AUTO HEADER HEIGHT CONTROL
Figure 5.14: Joystick Lever (Case IH
5088/6088/7088)
Figure 5.15: Float Indicator Box
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Revision A