I'm not confused - but do get a little disgusted with the overcomplication that exists in newer equipment. For my purposes, and many others, it's hard to beat simplicity. I'll take an open center tractor with a gear pump and many generic parts anytime than some rig with proprietary and expensive parts.
In regard to the terms "open center" and "closed center" - in general, they refer to the type of hydraulic function control valve used - regardless if on a tractor, a press, log splitter, steering system, etc. If the valve when in neutral lets all oil pass - then it has an open center. If it blocks all flow of oil, then it is a closed center. It's as simple as that. But, many tractors and other machines are, more-or-less hybrids with no proper or discrete label.
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Today's Featured Article - Tractor Implements and Their Use - by Curtis Von Fange. Dad was raised during the depression years of the thirties. As a kid he worked part time on a farm in Kansas doing many of the manual chores. Some of the more successful farmers of that day had a new time saving device called a tractor. It increased the farm productivity and, in general, made life easier because more work could be done with this 'mechanical beast'. My dad dreamed that some day he would have his own tractor with every implement he could get. When he reached his early sixties
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