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6volt system on my 2N, continued

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Tom

09-14-2000 16:16:30




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I thank those who answered my 6v/12v question. My problems with my 6v system started with a gen. rebuild, new batt., 2 new coils, points, condenser, and all other electrical parts. Everything is new and I still cooked the battery with the gen. at the lowest setting, why? The meter while running reads 6-9. This is why I have been thinking of the change over. Any ideas what the problem may be. Any help would be great. Thanks for your time.

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2nKEN Pa.

09-18-2000 16:09:38




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 Re: 6volt system on my 2N, continued in reply to Tom, 09-14-2000 16:16:30  
No cutout good or bad will cause your generator to overcharge your battery. So forget the cutout for now. A common problem wwith 3 brush generators is that the adjustment screws dont always work. On the back of the adjustment screw inside the generator is a thin little star gear that moves the third brush to control the current output.These frequently strip and dont move the brushes the way they are supposed to. Generator rebuilders generally set the generators to max output to make sure they are putting out the correct ammount of current when they test them. I bought a rebuild from farm and country last year and had the same problem that you describe. My brother mowed with it anyway and boiled the battery also. (it swelled up like a basketball).I took the end off of it and found that the adjustment screw gear wasn't moving the third brush at all. I was able to repair it enoughf to get about a quarter turn of adjustment out of it. I moved the brush to minimum output position put it back together, started the tractor, and was able to adjust the current up to about 3 or 4 amps at full throttle before it stopped adjusting. Which is about all the current you need (unless you have lights, then you need that screw to work properly to adjust for the extra current draw when using them) That is the original purpose of that screw. Later model fords did that with a voltage regulator on the generator but yours doesn't have one. You can take it to a generator shop and they can verify if the screw is working or not. My problem was that my tractor was two hundred miles away from the store near my house where I bought it, and i needed to mow that weekend. As far as the cutout is concerned when it closes the gen charges so yours is closing. when you shut off the tractor it should open so the battery wont discharge through the generator. IF it's stuck closed the gen will charge but the battery will discharge when the tractor is not running. Hope this helps and is not too late.

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Steve W

09-15-2000 09:49:04




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 Re: 6volt system on my 2N, continued in reply to Tom, 09-14-2000 16:16:30  
If you have a three brush generator, turn the azustment screw till it charges just a little while running. If you can't do that, you have a bad generator. Those units are a little strange to some of the youngsters not familiar with them. I called around til I found someone who said "oh yeah....just like the old Model A's....sure I've fixed a lot of those". The guy who fixed it musta been at least 70 years old....what stories he told!

If your cut out is bad, it will show a big discharge when you turn off the key. I doubt this is your problem....to check, remove the ground strap, and touch it to frame (away from the gas tank or top of battery) and look for a hot spark. If there isn't one, your cut-out if fine.

I'd bet it's a bad generator rebuild....I bought a so called "rebuilt" three brush from central tractor, and that was the exact symptom I had.

Good Luck
Steve

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JimTN

09-15-2000 03:43:31




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 Re: 6volt system on my 2N, continued in reply to Tom, 09-14-2000 16:16:30  
You will cook a 12v bat too if it is not set up properly! You have something wrong between the gen and battery. Sounds like the cutout has the points stuck. Caution, if that (cut out type) gen is run without being connected with the system, it will ruin the generator. They are supposed to put out to infinity if the circuit is not complete or working off and on with the points. You system should not charge all the time and should not remain with a load on it when it is shut down. Get a multimeter or simple circuit tester and start checking.

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D. R. White

09-14-2000 17:57:35




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 Re: 6volt system on my 2N, continued in reply to Tom, 09-14-2000 16:16:30  
Tom, Did you replace the the gen. cut out assy. It is located under the battery box on the steering sector if you did you may have got a bad one, if not change it and or recheck your wireing there. Hope this helps, Dave.



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