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There's TWO neutral safety switched on the PS's. The one for the pedal which you've found, and another low down on the RH side of the tractor, on the PS valve block. The two safety switches are in SERIES. They are connected up with YELLOW wire. Power from the starter button or key switch goes to one, passes through it, then passes through the other safety switch and on to the starter. (I can't remember, offhand, which is FIRST in the circuit from the ignition switch.) With your new neutral safety switch, did you get the kit with the little plastic "jig" for determining how many shim washers to use under the switch? (Obviously, you are depressing the "clutch" pedal while checking for continuity through the switch, RIGHT?) On some of these tractors, there was a dealer-installed second starter relay ahead of the BIG solenoid on the starter. A "Ford fender-mounted style" starter relay was mounted near the starter. It's coil was fed from the ignition/start switch. When it "pulled in", it switched the higher current needed to pull in the BIG solenoid on the starter.
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