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He likely was refering to the famed postion/draft control lever which is under the seat on the cast iron under your right thigh? It is designed for plowing & other heavy pull things you do with the 3pt. It uses the big spring on the upper link to keep the pull on the tractor about even by raising or lowering the 3pt arms if the pull gets harder or easier. Makes plowing dirt easier. Some few have gotten it to work with a blade, but for most it is worthless for a blade or other light-draft implements. I would suggest leaving the lever in 'Position' mode unless you have a 3pt plow. Getting an operators manual for your tractor is real cheap, real easy, & answers a lot of questions on your machine, instead of flopping levers around randomly to see what they do. Operation of the Position/Draft lever is explained there, better than i could do here.
Float is actually the way 90% of all 3pt hitchs work, it means the arms are free to come up, or float. There is no down pressure. Not a 'feature' of the tractor, just normal operation.
--->Paul
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