214683 190 Revision A
Figure 3.293: Automatic Controls and
Sensitivity Settings
1. Automatic Control Functions: There are toggle
(OFF/ON) switches on the HEADER SETTINGS screen
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. The 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 3.294: Header Speed Control Settings
3. Header Speed: The HEADER CONTROL SPEED
area (A) on the HEADER SETTINGS screen 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: 45 up / 40 down
• Fast: 100 up / 100 down
OPERATION
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