OPERATION
Figure 3.57: Ground Speed vs Acres
A - 30 ft. B - 35 ft. C - 40 ft.
Example shown above: At a ground speed of 6 miles per hour (9.7 km/h) with a 40 ft. header, the area cut in one
hour would be approximately 28 acres (11.3 hectares).
3.7.6 Draper Speed
Using the correct draper speed is one of the factors in achieving good flow of the cut crop away from the cutterbar.
The side drapers and feed draper operate independently of each other and therefore the speeds are controlled
differently. The side draper speed is adjusted with a manually adjustable control valve that is mounted on the adapter.
The adapter feed draper speed is fixed to the combine feeder house speed and cannot be independently adjusted.
Adjust the draper speeds to achieve good feeding of the crop onto the adapter feed draper. Refer to Adjusting Side
Draper Speed, page 70.
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