Repeated shear bolt problems are from A) Outer reversing box totally devoid of lubricant and jamming, or B) Shear bolt holes worn and allowed to work on shear bolt, especially if the tube has a bow in it from shipping damage or some other reason. With the bow just starting past the highest point, the downward force of the augers will rotate the tube quickly until the lost motion is taken up against the shear pin. If the holes are bad enough, the bolt can actually be sheared in the same direction the gearmotor rotates. If the holes are sound and the bolt is tight, this cannot happen. Mechanical devices in hostile environments need to be serviced once in a while.
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Today's Featured Article - Upgrading an Oliver Super 55 Electrical System - by Dennis Hawkins. My old Oliver Super 55 has been just sitting and rusting for several years now. I really hate to see a good tractor being treated that way, but not being able to start it without a 30 minute point filing ritual every time contributed to its demise. If it would just start when I turn the key, then I would use it more often. In addition to a bad case of old age, most of the tractor's original electrical system was simply too unreliable to keep. The main focus of this page is to show how I upgr
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