That's a Webster valve and you may be able to find some information on line. Been a long time since I was inside one, But don't think you can adjust. Think the relief or safety valve to steering motor can be adjusted. Rest depends on bore to spool clearance and spring tension. Valves like that were common when Behlen power steering was added to supers with engine hydraulic pump. Pretty sure IH used them on some combines or one close. Unless you can check hydraulic flow and pressure its just a guess on the valve being the problem. Valve could be worn internally, springs weak or the relief leaking pressure if its the problem.
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Today's Featured Article - Women and Tractors - Tractor Engine Repair - by Teri Burkholder. One of the great things about working on a tractor engine with your other half is that you know what he is thinking of at all times and can anticipate his every move and his next thought of what he will do. With Ben, anyway, I can tell! He'll be busy working and I’m handing him tools and he says, "give me that..." and I’ve already got it in his hand or "hand me that....."and I’ve got the portable light right where he needed it placed to see. "Run in the house and get me a...."as I open th
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