MacDon D50, Operator'S Manual

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43
Revision D
3.12 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 3.3, page 43 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 3.3 Operating Variables
Variable Refer to
Cutting height 3.12.1 Cutting Height, page 43
Header float
3.12.2 Header Float, page 48
Header angle 3.12.3 Header Angle, page 48
Reel speed 3.12.4 Reel Speed, page 49
Ground speed 3.12.5 Ground Speed, page 50
Reel height 3.12.8 Reel Height, page 54
Reel fore-aft position 3.12.9 Reel Fore-Aft Position, page 55
Reel tine pitch 3.12.10 Reel Tine Pitch, page 63
Crop divider rods 3.12.12 Crop Divider Rods, page 73
3.12.1 Cutting Height
The D Series Draper Headers are 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 header lift cylinder adjustment 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
–
12.2 m (30
–
40 ft.)
headers.
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.
DANGER
To prevent bodily injury or death from the unexpected start-up of the machine, always stop the engine and remove the
key from the ignition before leaving the operator
’
s seat for any reason.
1. Raise the header so the stabilizer wheels are off the ground.
2. Shut down the engine, and remove the key from the ignition.
3. Check that the float is working properly. Refer to your windrower operator
’
s manual for instructions.
OPERATION