There are a couple different kinds of bottom unloaders, one is the Harverstore, (well they have a few more). The Harverstore unloaders are like a big chainsaw blade going around inside, then there is the Laidig in the stave silos and some poured concrete silos, they use an auger with several teeth on them, there is a track bolted to the floor on the edge of the silo for the unloader to run on. In the hopper on the Laidig is several gearboxes some drive the sweep arm and some run the auger. When filling the silo you need to run it some so it does not settle down to tight on it or it is hard on it to get it going. Here is a pic of the track, I had to put a new shoe on the end of the sweep arm along with a new drive sprocket, it drives on the track to push the arm forward, at a pace of a foot in 10 minutes or so.
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Today's Featured Article - Tractor Generators - by Chris Pratt. As a companion to the articles on three-brush and two-brush generators, it seemed fitting that we should provide our readers with a description of how a generator works in lay terms. The difficulty with all those "theory of operation" texts is that they border on principles of electricity or physics and such. Since I know nothing of either, you will have to put up with looking at the common sense side of how generators work which means we "
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