It goes to the red lamp. It is the grounding wire for the lamp to turn lamp on and the sending unit is nothing more or less than an on off switch which is closed to ground when less than 4 psi and opens with pressure above that to turn lamp off. You will also notice, the dump valve is hooked to the clutch pedal and dumps ta pressure when ever you press clutch in and this in turn dumps all lube pressure so light should come on with clutch depressed. If your lamp is on and the wire is cut, that wire is grounded between that point and the lamp.
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Today's Featured Article - The Rescue of a Fordson F - by Anthony West. Introduction I live in the UK and have for many years restored Fordson tractors (in the main model N's). I have also restored and shown model F's, E 27N's, Field Marshall Series 2, David Brown Cropmasters and the old rey Fergeson T 20. At one time I had seven restored examples which were shown and used in ploughing matches. As most restorers, I have a number of war stories I can relate on a range of topics that may help other like minded and interested people. Perhaps my first p
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