I removed the spindle and it looked fine to me I am not a hydraulic expert). The rubber O rings looked ok, maybe a little hard. No scoring or dirt. This valve has always been "sticky" compared to the 300 next to it. If I recall correctly, I have to help center the spindle when I push it to full travel. It wants to "stick".It does not float freely as does the 300. There is only one thing that can unscrew and that is the screw that holds the spring and it was very tight. I can't run a test as you suggest as the spool is out. But I don't recall the bucket recovering if I hold the spool in the same position. I have to pull it further back to reverse the tilt. Removing the valve may be the answer and testing with air. I am going to take the spindle to the shop that works on all the heavy equipment in the area Monday and see if they can find anything obvious. Could the o rings (2) be old and stiff and make the valve "sticky" so it does not properly center?
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Today's Featured Article - An Old-Time Tractor Demonstration - by Kim Pratt. Sam was born in rural Kansas in 1926. His dad was a hard-working farmer and the children worked hard everyday to help ends meet. In the rural area he grew up in, the highlight of the week was Saturday when many people took a break from their work to go to town. It was on one such Saturday in the early 1940's when Sam was 16 years old that he ended up in Dennison, Kansas to watch a demonstration of a new tractor being put on by a local dealer. It was an Allis-Chalmers tractor dealership,
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