They look to be open center. If when they are off you can blow through the input port, and have air at the return port (to reservoir, or other valve input as shown), they are open center. If a hose from the IH system to the Gresen system is collapsed internally, it will act as though it is lifting a massive load. Check that by hooking the input hose to the output hose with a coupling, It should be full flow, no engine stress, no pressure. If there is, the pressure hose may be bad. The one way cylinders should not be leaking down as I stated in my first response. We will get it right! Jim
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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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