Setting Sensitivity Of Auto Header Height Control (Challenger 6 Series) - MacDon FFT FD75 Assembly Instructions Manual

2. Press HEADER CONTROL (A). The HEADER
CONTROL page displays.
3. Go to TABLE SETTINGS tab.
4. Press up arrow on MAX UP PWM to increase
percentage number and increase raise speed; press
down arrow on MAX UP PWM to decrease percentage
number and decrease raise speed.
5. Press up arrow on MAX DOWN PWM to increase
percentage number and increase lower speed; press
down arrow on MAX DOWN PWM to decrease
percentage number and decrease lower speed.

Setting Sensitivity of Auto Header Height Control (Challenger 6 Series)

The sensitivity adjustment controls the distance the cutterbar must travel up or down before the auto header height
control (AHHC) reacts and raises or lowers the feeder house. When the sensitivity is set to maximum, only small
changes in ground height are needed to cause the feeder house to raise or lower. When the sensitivity is set to
minimum, large changes in the ground height are needed to cause the 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.
1. Press HEADER icon on FIELD page. The HEADER page appears.
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SETTING UP AUTO HEADER HEIGHT CONTROL
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Figure 5.60: Challenger Combine Display
Figure 5.61: Challenger Combine Display
Revision A