Posted by uncle steve on July 17, 2020 at 10:36:59 from (50.86.53.75):
I have rebuilt piston style pump and put new flow control valve, relief valve in sump, check valve, back pressure valve and all the springs and ball bearings involved. New o rings everywhere even on piston in liftarm body. Im thinking out loud that the hydraulic fluid is to thin. I even tried a vane type pump. The arms will come up if you apply compressed air to the right place. I read here in this forum that these late model tractors were never designed for thin oil. Somebody mentioned using 40 wt oil. Need some guidance. Ive spent a small fortune up to now. Thanks. Also will ask. If linkage in lift arm cover is not adjusted correctly will this cause my problem
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Today's Featured Article - Gatherin of the Orange - by Rick Nikolich. In July of 1998 I was talking to fellow Allis Chalmers collector Mike Schilling about the annual "Gathering of The Orange" AC show coming up in August of 1999. He got this wild idea that we should get a convoy of AC tractors and drive them from Charlotte, Michigan 105 miles to LaGrange, Indiana.
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