1993 - Volume #17, Issue #2, Page #26

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Row Shut-Off For Case/IH Air Planters

Row Shut-Off For Case/IH Air Planters PLANTING EQUIPMENT Accessories 17-2-26 You can shut down any number of rows on Case/IH air planters with this new add-on kit that was developed by South Dakota farmer Wayne Tjeerdsma for his own use. "It eliminates overlapping on terraces or at the edge of a field, saving seed and preventing yield reductions," says Tjeerdsma, who's building about 30 of his row shut-off units for market this year. "We want to get a few out this year. If feedback is positive, we will put it on the market in 1994." The add-on unit, which attaches with 4 bolts (you drill two holes), consists simply of a set of rubber release wheels that are positioned on the top side of the pressurized seed drum. The drum carries seed in holes that correspond to the rows being planted. A release wheel is positioned above each row of holes. By dropping the wheel down against the drum, it releases the seed back into the drum before it can be delivered to the seed manifold. Each release wheel is independently controlled by an electric solenoid that's controlled by a switch in the cab. "The first model I built was manual. I had to climb off the tractor to shut down rows. Now I can do it from the cab with the flip of a switch," says Tjeerdsma. He plans to sell 8-row units for $350. Contact: FARM SHOW Followup, WayneTjeerdsma, Selectro Company, P.O. Box 226, Avon, S. Dak. 57315 (ph 605 286-3631).