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Get thee a catalog from Burden's Surplus in Lincoln NE. Then try to get one from Baum Hydraulics. Both have some fundamentals on hydraulics. Northern Tool often has a good selection (at least in their catalog) of hydraulic parts, but no educational literature that I know of. Basically you need a pump, a reservoir (which often acts as the oil cooler if larger enough), a valve, and some hydraulic loads. I've used a PTO pump and it was fairly handy except that every time I wanted to mow I had to take the loader and pump off. That was not too hard but it was a bother. I went to a front mounted 5 gpm pump for my loader driving off the engine crankshaft and that actually made removing the loader more convenient but then I could mow or bale without removing the loader. Its not a good idea to go for the 22 gpm PTO pump on your size of tractor. The PTO won't pull it at full flow and you don't need that much flow for most uses. Some Farmalls installed a pump between the governor gear and the distributor driven off that shaft. Its of benefit to include a filter in the return line to the reservoir to help catch trash in the oil. Pumps and valves don't accept anything but oil. Don't put the filter in the pump suction linee or in a pressure line. The restriction in the suction line will cause the pump to cavitate and no filter I've seen will handle 2400 psi for longer than a second. Gerald J.
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