I don't know about the 856 but I'm not sure I'd replace the relief valve first. However on my 2606 which I'm still having steering problems, the relief valve was always open and I had no pressure. When I pulled it, there was a small piece of metal that looked like the end of a broken spring holding the ball open. In hindsight I should have used a strong magnet to catch the metal piece because when I put it in the vise to depress the ball, the metal piece fell back inside the relief valve. It still appears to be working but I suppose that metal piece could still get stuck again.
I didn't pay the 80 bucks for a new one. A used one should be available at any of the salvage yards.
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Today's Featured Article - Trenching With a Plow - by Staff. Introduction: This interesting information came from one of the discussion forums here at YT. We thought we should place it up front so it could be read by anyone interested in putting old iron to work. [Editor] I tried something new today, and it worked so well I thought I should post it - in case it might help someone else. I'm running 100 yards of 4" drain pipe from the gutter downspouts of our house to a pond down the hill. This should hel
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