Again, not being familiar with the particular layout of the system, mainly the plumbing, If there is a location in the lines where you can disconnect the line between the pump outlet and any of the steering components, if you have or can find a needle valve to install directly from the pump, and squeeze it down a little at a time to see if it builds pressure, that would tell you what the pump is capable of. Since the relief is built into the outlet of the pump, you will not hurt anything and it will tell you if the pump will supply oil to build pressure. If you are dumping the oil into a bucket from the needle valve, if the pump is working, it should flow up to the point of shutting the valve off completely and should reach system pressure before it's shut completely off. Of course, we had equipment available to do these things and I do not know what you have handy. An external relief valve in place of the needle valve would also do, but you are less likely to have anything like that. At about 3gpm, a 1/4" needle valve rated at 2500psi should do.
pete may know a simpler way to do it, or if there is a place to break into the system like that.
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Today's Featured Article - When Push Comes to Shove - by Dave Patterson. When I was a “kid” (still am to a deree) about two I guess, my parents couldn’t find me one day. They were horrified (we lived by the railroad), my mother thought the worst: "He’s been run over by a train, he’s gone forever!" Where did they find me? Perched up on the seat of the tractor. I’d probably plowed about 3000 acres (in my head anyway) by the time they found me. This is where my love for tractors started and has only gotten worse in my tender 50 yrs on this “green planet”. I’m par
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