Posted by used red mn on December 06, 2020 at 00:17:17 from (75.73.112.20):
In Reply to: getting the right part posted by tedregentin on December 05, 2020 at 18:09:50:
I agree with the guess sv made that your system is open center. The pump in a closed center system is more complex. Is there any brand or other ID on the pump that might help identify what you have. I assume by your explanation of it being a PTO pump that it is not part of the stock hydraulic system of the tractor. Is it possible to post a picture of it? One way to determine what you have may be a little messy, but can you determine which hose returns fluid to the pump unit from the valve? If so you could disconnect it and direct the flow out of the valve into a clean bucket. Then start the pump, if oil flows continually out of the valve you have an open center system.
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Today's Featured Article - What Oil Should I Use? - by Francis Robinson. I keep seein this question pop up over and over again in discussion groups all over the web. As with many things there are often several right answers and a few wrong ones. Some purist I'm sure will disagree to no end with what I will tell you but most of us out here in the real world don't really care do we ? Some of them only bring their noses down out of the air long enough to look down them anyway. If you are like me you are only doing this old tractor stuff because you enjoy it. You
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