Header Operating Variables; Cutting Height; Cutting Off The Ground - MacDon D65 Operator's Manual

3.7 Header Operating Variables

Satisfactory function of the header in all situations requires making proper adjustments to suit various crops
and conditions.
Correct operation reduces crop loss and increases productivity. As well, proper adjustments and timely maintenance
will increase the length of service you receive from your machine.
The variables listed in Table
performance of your header.
You will quickly become adept at adjusting the machine to achieve the results you desire. Most of the adjustments
have been preset at the factory, but the settings can be changed to suit crop conditions.
Table 3.4 Operating Variables
Variable

Cutting Height

Header Float
Header Angle
Reel Speed
Ground Speed
Draper Speed
Knife Speed
Reel Height
Reel Fore-Aft Position
Reel Tine Pitch
Crop Divider Rods
3.7.1 Cutting Height
The header design allows Operators to cut the crop above the ground in relation to the desired stubble height
or to cut the crop at ground level with the header on the ground. Cutting height will vary depending on type of
crop, crop conditions, etc.

Cutting Off the Ground

The stabilizer wheel system is designed to minimize bouncing at the header ends and may be used to float the
header to achieve an even cutting height when cutting above ground level in cereal grains. The system produces
even stubble height and greatly reduces operator fatigue.
Cutting height is controlled using a combination of the windrower header height control and a stabilizer wheel system
(or stabilizer/slow speed transport wheel system).
The stabilizer wheel system (or stabilizer/slow speed transport wheel system) is available only for 30-, 35-, 40-, and
45-foot headers.
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OPERATION
3.4 Operating Variables, page 49
Section
3.7.1 Cutting Height, page 49
3.7.2 Header Float, page 55
3.7.3 Header Angle, page 55
3.7.4 Reel Speed, page 56
3.7.5 Ground Speed, page 56
3.7.6 Draper Speed, page 57
3.7.7 Knife Speed, page 57
3.7.8 Reel Height, page 58
3.7.9 Reel Fore-Aft Position, page 58
3.7.10 Reel Tine Pitch, page 65
3.7.12 Crop Divider Rods, page 72
and detailed on the following pages will affect the
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