From on line diagrams of the generator I believe it is the B type. The dash light is connected to a terminal o the regulator. It may not be directly related to charge rate. To see if the generator is putting out voltage, put a volt meter across the battery terminals. Running above idle, it should produce 14.2 to 14.6 volts. If battery voltage (about 12.6) it is not charging. Keep the volt meter connected. and positioned so you can see it from the generator. With the engine stopped, remove the Field wire from the generator. Protect the end of the wire so it touches nothing. With it running, use a jumper from the battery hot terminal to the F terminal on the generator. (do this temporarily, as in touching the terminal with the wire briefly) this will spark a little, but the voltage will go up on the meter. This indicates that the generator is working. I would replace the voltage regulator. If it does not go up, I would have the generator tested at a shop. Jim
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Today's Featured Article - Restoration Story: Fordson Major - by Anthony West. George bought his Fordson Major from a an implement sale about 18 years ago for £200.00 (UK). There is no known history regarding its origins or what service it had done, but the following work was undertaken alone to bring it up to show standard. From the engine number, it was found that this Major was produced late 1946. It was almost complete but had various parts that would definitely need replacing.
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