Hi Kevin, the 574 has an open center hydraulic system, meaning there should be no load on the hydraulic pump when all control valves are not being used. For the 3pt circuit the high pressure oil should come out the bottom right port on the MCV valve flow up under the seat to draft control then unto remote control valves and return via draft control to second port from bottom on right side of MCV valve to be filtered before entering the pump again. If the tractor engine is being loaded by the hydraulic pump when no hydraulic control valve is being used then there is a problem somewhere.
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Today's Featured Article - Memories of an IH Super A When I was ? up to 10, I worked on my Papaw's farm in Greeneville, TN every summer. As I grew older (7), it was the thrill of my day to ride or drive on the tractor. My Papaw had a 1954 IH Super A that he bought to replace a Cub. My Papaw raised "baccer" (tobacco) and corn with the Super A, but the fondest memory was of the sawmill. He owned a small sawmill for sawing "baccer" sticks. The Super A was the powerplant. When I was old enough (7 or 8), I would get up early and be dressed to
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