MacDon FlexDraper FD75 - Header Operating Variables; Cutting Height; Adjusting Stabilizer;Slow Speed Transport Wheels

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3.7 Header Operating Variables
Satisfactory header function requires making adjustments to suit various crops and conditions, reduce crop loss, and
increases productivity.
The variables listed in Table 3.5, page 54 allow the operator to affect the header performance.
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 3.5 Operating Variables
Variable
Refer to
Cutting height 3.7.1 Cutting Height, page 54
Header float
3.7.2 Header Float, page 60
Header angle 3.7.4 Header Angle, page 78
Reel speed 3.7.5 Reel Speed, page 85
Ground speed 3.7.6 Ground Speed, page 86
Draper speed 3.7.7 Draper Speed, page 87
Knife speed 3.7.8 Knife Speed, page 88
Reel height 3.7.9 Reel Height, page 89
Reel fore-aft position 3.7.10 Reel Fore-Aft Position, page 90
Reel tine pitch 3.7.11 Reel Tine Pitch, page 97
Crop divider rods 3.7.12 Crop Dividers, page 100
3.7.1 Cutting Height
The header is capable of cutting the crop to a desired stubble height or cutting as close as possible to the ground. Cutting
height will vary depending on the type of crop, crop conditions, etc.
Cutting off Ground
When cutting off the ground, height is controlled using a combination of the combine header height control and a stabilizer
wheel system (or stabilizer/slow speed transport wheel system).
The stabilizer wheel system in both options is designed to minimize bouncing at the header ends and float the header to
achieve an even cutting height when cutting above ground level in cereal crops. The system produces even stubble height
and greatly reduces operator fatigue.
The stabilizer wheel system (or stabilizer/slow speed transport wheel system) is available only for 9.1, 10.7, 12.2, and
13.7 m (30, 35, 40, and 45 ft.) headers.
If stabilizer wheels are installed, refer to Adjusting Stabilizer Wheels, page 57 for instructions on changing wheel positions.
If stabilizer/slow speed transport wheels are installed, refer to Adjusting Stabilizer/Slow Speed Transport Wheels, page 54
for instructions on changing wheel positions.
Adjusting Stabilizer/Slow Speed Transport Wheels
A properly adjusted header will achieve a balance between the amount of header weight carried by the float springs and
the amount carried by the stabilizer/slow speed transport wheels.
Refer to 3.6.2 Header Settings, page 43 for recommended use in specific crops and crop conditions.
OPERATION