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 - Search For Spares - by Anthony West (UK). Following on from the aquisition of the old Fordson F, I was very much in need of spares. As a novice though I didn't appreciate the fact that there were so many Fordson tractors made, that all the other makes seem rare by comparison. As far as I was aware a fordson was a fordson and it was only through trial an
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