There really isn't any bypass wire on this tractor but rather the resistance wire is bypassed. The power comes from the key switch through the multi connecter under the dash near the voltage regulator. The next piece of wire is the resistor which is crimped into the same connector at the solenoid with the wire that goes to the coil. The by pass is the I terminal on the solenoid. When the starter is engaged the I terminal is energized internally from the battery cable contact which provides cranking voltage to coil leaving equal voltage on each end of the resistance wire. When the solenoid is de-energized the current again comes through the key switch through the resistance wire to the coil.
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Today's Featured Article - Gatherin of the Orange - by Rick Nikolich. In July of 1998 I was talking to fellow Allis Chalmers collector Mike Schilling about the annual "Gathering of The Orange" AC show coming up in August of 1999. He got this wild idea that we should get a convoy of AC tractors and drive them from Charlotte, Michigan 105 miles to LaGrange, Indiana.
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