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 - Restoration Story: Fordson Major - by Anthony West. George bought his Fordson Major from a an implement sale about 18 years ago for £200.00 (UK). There is no known history regarding its origins or what service it had done, but the following work was undertaken alone to bring it up to show standard. From the engine number, it was found that this Major was produced late 1946. It was almost complete but had various parts that would definitely need replacing.
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