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 - Timing Your Magneto Ignition Tractor - by Chris Pratt. If you have done major engine work or restored your tractor, chances are you removed the magneto and spark plug wires and eventually reached the point where you had to put it all back together and make it run. On our first cosmetic restoration, not having a manual, we carefully marked the wires, taped the magneto in the position it came off, and were careful not to turn the engine over while we had these components off. We thought we could get by with this since the engine ran perfectly and would not need any internal work. After the cleanup and painting was done, we began reassembly and finally came to t
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