Posting a picture John although not as clear as I would like. Lever that has several white marks pushes the 2 pins just above the two single white marks when the control lever is pushed forward. Can just see the shiny ends I think. Pins push balls off a seat to let hydraulic fluid come back to the unit from the ports. Pressure pushes the balls off the seats when pumping into the lines. Unless the pins are pushed in fluid is not supposed to flow back after a load is on the cylinder. When the control rod is stopped on the catch bump its usually several inches from pushing a pin in. Also the more load thats on a cylinder the harder it gets to push the ball or balls off the seats when pushing the rod forward. If the unit won't stay up the balls are leaking or a internal leak. Or maybe the linkage is keeping the pins pushed in, kind of doubt it though. Wonder if dirt, metal cuttings, teflon tape, ETC. got into the ports when changing and is now keeping the balls from sealing.
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Today's Featured Article - Product Review: Black Tire Paint - by Staff. I have been fortunate in that two of my tractors have had rear tires that were in great shape when I bought the tractor. My model "H" even had the old style fronts with plenty of tread. My "L" fronts were mismatched Sears Guardsman snow tires, which I promptly tossed. Well, although these tires were in good shape as far as tread was concerned, they looked real sad. All were flat, but new tubes fixed that. In addition to years and years of scuffing and fading, they had paint splattered on
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