The PTO will not provide power with the main clutch pushed in. It will if the Heisler lever is in either position. The Heisler unit is a high capacity friction clutch, that is disconnecting one set of final drive pinion/Bull gears. This is the same as having a steering clutch in a dozer, except this has a differential and when one side is disconnected, the internal gears act like that wheel is on ice, and the other wheel does nothing. Thus the tractor stops, and the trans keeps going. powering the PTO shaft. It is still necessary to use the main clutch to shift gears, as all internal gears will turn and grind if the main clutch is not pushed in when shifting. JimN
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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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