So if you want them out of the way for a pulse, it’s all hydraulically lifted out of the way, or put back down.” “It’s all on paralink out front, and they are all on a hydraulic lift. “So we’re going to have one mid row feeding two openers,” he said. The main pressure spring also has five different adjustments. Many packer wheel options are available, and seed depth can be quickly changed with a quick adjust cam stop setting that moves in quarter inch increments. Parallel linkage is used on the opener, which provides 10 inches of travel with adjustable spring down-pressure from 120 pounds to more than 800 lb. Hartman said the pivoting opener arm also reduces the amount of horsepower required to pull the drill and increases the life of the discs. To help reduce smearing, where the edge of the seed trench is compacted by a disc, especially in wet conditions, K-Hart uses a pivoting opener that helps the opener run parallel with the direction of travel. Beyond opening up the soil and residue to provide a consistent seed trench, the second disc also prevents loose soil or straw from falling into the trench before seed is placed on the bottom, which Hartman says enables the best seed-to-soil contact of any disc opener on the market.
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