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Stump Grinder Doubles As A Garden Tiller
Thomas Schraufnagel built himself a towable stump grinder so he could take out stumps when he wanted. Though he built it for his own use, neighbors are after him to do theirs, too.
    “I’m about 4 stumps behind now,” says Schraufnagel. “It works great.”
    Schraufnagel made the dual-purpose machine with a side purpose in mind. He wanted to use up as much of the junk he had laying around as he could. The tow bar was made out of old awning parts from a motor home. It is pinned inside a sleeve at the mainframe, making it easy to remove.
    “The mainframe is made out of angle iron from bed frames and other sources,” says Schraufnagel. “I did buy an engine, and I ordered stump grinder teeth from a forestry supply company. Bearings came from a farm supply store. Cutting teeth mount to a disc brake from an old Cadillac.”
    He also used salvaged steel tubing, square and round, for axle, pulley mounts and the stump grinder shaft. Wheels and tires were also found in his salvage pile.
    The grinder without tow bar in place is about 3 ft. long and 3 ft. high at the handlebar. Width is about 28 in. wheel to wheel.
    Schraufnagel designed the frame and pulley drive so he could get double duty as a tiller. The stump grinder shaft rides in bearings mounted to the open end of the frame. He built a tiller head sized to fit the same bearings.
    “I bought 3 sets of tiller teeth and mounted them to a 6-in. square piece of 1/4-in. steel,” says Schraufnagel. “These are mounted on a shaft with a belt drive pulley. To swap heads, I just open the bearings, remove the shaft from them and the belt, and replace it with the other head.”
    Contact: FARM SHOW Followup, Thomas Schraufnagel, 3901 River Dr., Plover, Wis. 54467 (ph 715 341-2969).



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2015 - Volume #39, Issue #6