NOPE even if you change battery polarity the tractor starter STILL TURNS THE SAME DIRECTION REGARDLESS.
Tractor starters (usually series wound) utilize a wound electromagnetic field versus small lawn tractor starters that use permanent magnet fields. A small permanent magnet motor will indeed change direction if you reverse its electical connection polarity butttttttt to reverse an electromagnetic field starter you have to reverse/swap EITHER the field or armature windings......i.e. you have to change the relationship of the field versus armature (push/pull attract/repel) and if you just swap electrical polarity they dont get changed with respect to each other STILL TURNS SAME DIRECTION
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Today's Featured Article - The Mud Daubers and the Old John Deere - by Jon Zehnder. I have a 1941, John Deere Model A tractor I have owned for about a year and a half. This is my first (in case my wife reads this, "FIRST") tractor and it has been a learning experience. After considerable advise and assistance from local tractor nuts and the forums of Yesterday�s Tractors, I had finally got it running pretty well. I have tuned it up, overhauled the carburetor, installed a borrowed, rebuilt magneto, installed a new Power-Trol, patched the radiator, installed new front wheels a
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