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Figure 9.37: Automatic Controls and Sensitivity
Settings
1. Automatic Control Functions: There are toggle (OFF/ON)
switches on the HEADER SETTINGS page for the automatic
control functions. For MacDon headers, ensure the
following two functions are enabled as shown:
• RTC (return to cut) (A)
• AHHC (automatic header height control) (B)
All other switches are disabled (not highlighted).
2. Sensitivity setting (C) controls how responsive a control
(RTC or AHHC) is to a given change in sensor feedback. The
setting fields are located directly below the toggle switches.
To enter a new sensitivity setting, touch the setting field
below the specific toggle switch, and enter the new value in
the on-screen keyboard.
• Increase sensitivity if the combine does not change the
feeder position quickly enough when in Auto Mode.
• Decrease sensitivity if the combine hunts for a position
in Auto Mode.
NOTE:
Recommended sensitivity starting points for MacDon
headers are:
• 50 for RTC (A)
• 60 for AHHC (B)
Figure 9.38: Header Speed Control Settings
3. Header Speed: HEADER CONTROL SPEED area (A) on the
HEADER SETTINGS page is used to adjust the following
speeds:
• Tilt left and right is the lateral tilt of the combine
faceplate
• Header up and down (slow and fast speeds) is a two-
stage button with slow speed on the first detent and
fast on the second
NOTE:
Recommended header control speed starting points
• Slow: Up 45/Down 40
• Fast: Up 100/Down 100
SETTING UP AUTO HEADER HEIGHT CONTROL
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