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Generators & Electric Motors General Discussion Antique Generators and Old Electric Motors: Questions and answers about restoring and showing old power generation systems.

Generators & Electric Motors General Discussion

Fairbanks Morse W3S

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Old 05-27-2019, 10:36:23 AM
RodneyBates RodneyBates is offline
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Default Fairbanks Morse W3S

I have a Fairbanks Morse W3S which runs great by starting manually. It has a magneto. Someone has changed the control board (removed it!) and wired direct. It does generate 115 volts AC and 32-36 volts DC, however checking the DC output, the positive is grounded. The plate says to use 32 volt battery. It does have an amp meter (disconnected) and a start and stop buttons (disconnected) but does not have a rheostat next to the meter. I would like to rewire so I could start it with batteries (as I'm getting worn out manually cranking) I have a wiring diagram for a W3S Onan, but it calls for a 12 volt battery. Is the 32 volt wired differently? If so, does someone have a diagram for the 32 volt? Thanks for any help you can give!
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