Bull wheel referred to a ground-driven wheel on a pulled impliment which engaged the ground to acquire power to run the pulled machine. Used a grain binder this summer to make bundles of oats. It used a metal wheel with cleats on it to drive the machinery - cutter bar, aprons, string tieing mechanism. Looking at the ground later, it was evident that even the low power requirements for this machine were enough to cause slippage of the bull wheel. A directly driven PTO off a tractor would have been an improvement. But then you have to realize that many early tractor jobs were pulling old horse drawn impliments. Don"t think anyone had figured out how to install a functional PTO on a team of horses! Ground driven was the only way to go.
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Today's Featured Article - Hydraulic Basics - Part 2 - by Curtis Von Fange. In the last entry to this series we gave a brief overview of hydraulic system theory, its basic components and how it works. Now lets take a look at some general maintenance tips that will keep our system operating to its fullest potential. The two biggest enemies to a hydraulic system are dirt and water. Dirt can score the insides of cylinders, spool valves and pumps. Wate
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