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Re: Farmall A Cutout Relay Question ...

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John T

11-28-2012 06:56:57

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Pretty much the same as the discussion over on R & R and when and where to wire the gennys FLD post depending on if the tractor has lights huh? and that post even had a good picture of the internals including the wire wound field current limiting resistor itself. Stick around Bob youre a good hand on this stuff !!!!!!!!!! I"ve learned a thing or two from a "Mechanical" Engineer, I was sick the day they taught this at Purdue EE in the late sixties lol

John T

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Bob M

11-28-2012 10:47:43

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 Re: Farmall A Cutout Relay Question ... in reply to John T, 11-28-2012 06:56:57  
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Hey John T - I've learned more than a thing or two from you too - both from your posts here and from your EXCELLENT seminars at the NY JD Expos!
Aso I gotta admit missing an EE class or two myself while down with "brown bottle flu"!

....Bob M

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11-28-2012 18:07:16

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 Re: Farmall A Cutout Relay Question ... in reply to Bob M, 11-28-2012 10:47:43  
John T and Bob M are difficult to fault in the ways of tractor electrical reality. It is not merely ""learnin"", it is experience speaking. To hook both the resistor in that style cutout and the resistor in the light switch to the field terminal on the gen at the same time would surely give a higher charge rate than charge maintenance with no lights would require. It just isn't correct. Jim

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gene bender

11-29-2012 07:10:27

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 Re: Farmall A Cutout Relay Question ... in reply to Janicholson, 11-28-2012 18:07:16  
It doesent give hi charge thats why you set the third brush. How many of those systems have you fixed. Ive been around those systems since 47 and they did come from the factory that way and they still work. The pull cable for the mags was used on the hand crank models with electric start the used a sw. Another quirck the drilled hole in the mags for that cable sw never was discontinued all thru the mag production. Just like the cams in those engines had a lobe for the fuel pump all thru production.

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11-29-2012 10:28:12

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 Re: Farmall A Cutout Relay Question ... in reply to gene bender, 11-29-2012 07:10:27  
Don't be so insistant. Not a flame, I am a very experienced mechanic and electrical system professor. (not that it makes a difference) Jim

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gene bender

11-30-2012 03:55:54

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 Re: Farmall A Cutout Relay Question ... in reply to Janicholson, 11-29-2012 10:28:12  
You still didnt answer the question how many of the cut-out systems do you have and have fixed. Also have you seen any still in their original state.

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11-30-2012 07:34:42

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 Re: Farmall A Cutout Relay Question ... in reply to gene bender, 11-30-2012 03:55:54  
About 6 of them from retrofitted F series to Bs, Cs and As. All had either direct F to F from the cutout, or the light switch hooked up to the F terminal. I was born in 1949 and by the time I was 9 I was messing with them. (but that puts me at 100 series introduction, so) I have never seen a C or B or other system From the factory. Jim

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11-28-2012 13:39:11

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 Re: Farmall A Cutout Relay Question ... in reply to Bob M, 11-28-2012 10:47:43  
Aha! So you guys finally come out from behind the curtain, and admit to being "a engineer." Mechanical, myself, Maryland undergrad 60's, grads from Penn State. EE courses ~ useless on real stuff like tractors, but I've known where to find you guys for quite some time. Thanks from all of us for your help.

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