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As the row-crop head gatherer points are positioned between the rows, the points lift and guide the crop into the gatherer belts. The gatherer belts extend forward of the rotary knife to grip each stalk before it is cut. Each row unit has its own rotary knife, equipped with six high-carbon cutting sections. After the rotary knives have cut the stalks, the gatherer belts convey the stalks to the auger. The auger delivers the stalks to the feeder house. A trough, located under the gatherer belts, reduces crop loss due to shatter.
When row unit parts are worn or not properly maintained, the following problems may occur:
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Knife wrapping
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Row unit plugging
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High losses
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Crop stripping
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Grain damage
Three critical parts that affect productivity are the rotary knives, stationary knives, and gatherer belts.
Rotary and Stationary Knives
Sharp rotary knives are important for maximum row-crop head harvesting efficiency. The knives are manufactured of long wearing, high-quality steel. The edges of the knife are beveled and coated with a metal alloy for increased edge life. To ensure clean, smooth cutting, replace rotary knife sections and stationary knives when they are dull.
Bolt-on knife sections are easy and convenient to replace. No modification is necessary to replace riveted knife sections with bolt-on knife sections. Special plow bolts and locknuts are required.
Gatherer Belts
The gatherer belt gathers and conveys the crop to the cross auger. As the two-ply belt wears, it will become frayed or torn and should be replaced.
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