I think barnyard is right on the money about your valve leaking by and letting the loader cylinders settle. The rest of my points do not change this. The valve no matter the type passes fluid when you operate it and then when centered holds that fluid from passing back or captures it in the hose and cylinder. You say you have an ..original.. spool valve. You mean it is an original valve JD would have sold for that loader? I am just wondering if the valve may be an open center valve instead of the correct closed center valve I think that is correct for your tractor. On second thought I believe a 2640 may be a closed center or open depending on the serial number. Has the loader and valve been on the tractor and operating fine or is this a recent install. The response of the return pressurizing means it is an open center system or you have an open center valve on a closed center system.
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Today's Featured Article - Show Coverage: Godfrey, Illinois Country Days - by Cindy Ladage. Except for last fourth of July's Old Gold show in Springfield, Illinois, I don't remember when it was so hot. Nevertheless, the heat didn't keep vendors and visitors alike from enjoying the third annual Country Day's Event. Jane Elliott said the event was originally a one man show. "Barry Seiler, owner of Country Town Farm Supply store used to invite people up to the Johne Deere store. He would give hats and a free meal for everyone that brings a tractor." Elliott said while this
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