White 2-60 4wd tractor with an external hydraulic pump mounted to the secondary PTO shaft. Hydraulic fluid is in separate reservoir. So it does not use the tractors internal fluid. There is a good quality zero to 3000 psi gauge in the circuit.
The pump uses the Gresen valve to operate the front loader and for a few days a year a log splitter.
When the cylinders bottom out in either the loader or the log splitter you hear a howling sound, probably the relief. It then shows 2,200 psi on the gauge. I want to increase system pressure to about 2350 psi so I can get about 150 lbs more lift on the loader. I think this would be a safe limit.
So I assume I just back off the locking nut and turn in the adjuster screw about 1/4 turn at a time until I get to the pressure I want.
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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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