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52 8N Electrical question
:

6V

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katrst

04-09-2001 11:02:38




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Question is: 8N not charging, 6.2 volts across battery terminals. I grounded the field terminal at the regulator, and then it showed charge. Replaced regulator, polarized correctly, have the same problem at startup - no charge, low voltage. I then grounded the field terminal on the new regulator and sure enough, showed charge! Could I have gotten a bad regulator? I'm sure the install was OK, and all grounds seem to be fine. Any advice please!!

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Claus

04-09-2001 11:39:54




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 Re: 52 8N Electrical question - 6V in reply to katrst, 04-09-2001 11:02:38  
When you say that the grounds seem to be ok, do you have a wire running from the ground connection of the generator to the case of the regulator? Do you have the correct regulator? The test that you perform for the generator shows that your generator is fine. That leaves the regulator either bad or wrong one. You can do additional testing of the regulator. Please see my site. Too much to type here.
Happy Motoring
Claus

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katrst

04-10-2001 05:39:51




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 Re: Re: 52 8N Electrical question - 6V in reply to Claus, 04-09-2001 11:39:54  
Claus,

Thanks for the reply. Yes, there is a ground wire at the regulator base which I assume goes to the generator ground, I haven't traced it yet. Removing the wire with engine running doesn't do anything, (no sparks)though. Should it? I believe I have the right regulator - 6V positive ground for tractors after serial # 263844 - mine is #508xxx. Also, it may not mean anything, but the generator itself seems to have been replaced some time in the last 50 years - the case is too 'long' to fit properly - the back of it is tight against the oil fill/breather tube. The only number I can find on it is 8N10139B close to the front pulley. Could I have an earlier style generator? Thanks again!

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