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Farmall M wireing

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Author  [Modern View]

09-27-2012 12:15:20

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Im re-wiring the tractor and as I look at farmallbobs diagrams it has three wires hooked to the fuse (regulator L to fuse, fuse to light switch, and ignition switch to fuse) but there is only 2 connectors, what am I missing? (im using a 2 wire key ignition if it matters, not the original push/pull switch).

My other question is, I have a 12 volt generator, are the A and F terminals on the gen. the same for 6 volt as they are for 12? (the top screw on the gen. has a black washer and the bottem screw has a red washer, ground and hot?)

thanks for the help guys, ~Anthony

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09-28-2012 06:21:36

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 Re: Farmall M wireing in reply to gary in neb., 09-27-2012 12:15:20  
Quoting Removed, click Modern View to seeTry this:

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DC Snider

09-28-2012 06:01:00

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 Re: Farmall M wireing in reply to BigTone, 09-27-2012 12:15:20  
You can connect to the male spade on the fuse holder with a "double barrel" female spade connector, or use a single that is for slightly larger wire, No. 10AWG or so. Hope that helps...

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The Red

09-27-2012 13:44:47

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 Re: Farmall M wireing in reply to BigTone, 09-27-2012 12:15:20  
Anthony if that is a Delco generator converted to 12 volts (I had several converted through the years) one post should have a letter stamping of A next to it in the housing and the other of F for field which is the ground side. Should be the same configuration from 6 to 12 volts. At least that is what I found on the 2 Hs and 2 Ms I converted.

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John T

09-27-2012 12:49:23

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 Re: Farmall M wireing in reply to BigTone, 09-27-2012 12:15:20  
My friends Bob M and Janicholson can better help with that switch, they have pictures n wiring diagrams etc. I cant pack water to them when it comes to switch details etc., but Im knee deep in theory lol

On the Genny if not marked A (Armature) and F or FLD (Field) often the ARM is the larger of the 2 posts.

If you had an ohmeter with decent accuracy on the low Rx1 ohms scale, the post with the highest resistance to the frame ground would be F and the other (A)RM. The ARM sill be very low ohms to frame while the F would be maybe 3 to 4 ohms more.

Thats the best I can do

Ol John T and all

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