Thanks,, I had been thinking about building this for years and finally got around to it 3 years ago, I can bench test 4020 steer valves,new gen SCV's and all closed center pumps. It has a 30hp motor turning a jack shaft 2100 RPM, a good closed center (4020 pump) on the left end that can be shifted in and out of use, this pump provides pressure for testing valves, the right end of the jack shaft can receive a pump to be tested, I made a fixture out of some old air clutches to hold things being repaired, here are a few pics of it all..
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Today's Featured Article - Hydraulics - Cylinder Anatomy - by Curtis von Fange. Let’s make one more addition to our series on hydraulics. I’ve noticed a few questions in the comment section that could pertain to hydraulic cylinders so I thought we could take a short look at this real workhorse of the circuit. Cylinders are the reason for the hydraulic circuit. They take the fluid power delivered from the pump and magically change it into mechanical power. There are many types of cylinders that one might run across on a farm scenario. Each one could take a chapter in
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