22 Draper Clinic Handout
- FD1 FlexDraper
®
Auto Header Height Control
The indicator
(A)
should be at
0
with the header 152 mm (6 in.) off the
ground. (If not it may affect the header calibration procedure.). When
the header is on the ground, the indicator would be at
1
for low ground
pressure, and at
4
for high ground pressure. MacDon recommends using
2
as a starting ground pressure.
Ground speed, ground conditions and crop conditions will affect
the amount of ground pressure to use.
The ideal setting is as light as possible without header bouncing
or missing crop.
Operating with heavy settings prematurely wears the cutterbar wearplates.
MacDon’s auto header height control (AHHC) feature works in conjunction with the AHHC
option available on most current model combines.
A sensor is located in the float indicator box on the FM100 Float Module. This sensor sends a
signal to the combine telling it to automatically adjust the feederhouse position to maintain
a consistent cutting height and an optimum float (ground pressure) as the header follows
ground contours.
1.
Disengage header float locks.
2.
Ensure that header float is set correctly. Refer to Quick Card.
3.
Perform header calibration.
4.
Set combine presets through the combine console or control handle.
NOTE: Refer to Combine Operator’s Manual and Header Operators Manual Section 3.8 Auto Header Height Control
for more information on header calibration and settings.
Setting AHHC
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