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Alternator Conversion

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Andy Elsner

07-21-2002 10:47:54




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I know this has been discussed in the past on smaller tractors but wondered if anyone has some info handy on an 806 Generator to Alternator conversion. Does anyone have some tips or instructions to perfrom this modification. Any help is greatly appreciated. Regards, Andy




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BIG JOHN

07-21-2002 16:55:48




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 Re: Alternator Conversion in reply to Andy Elsner, 07-21-2002 10:47:54  
Andy, I think that your 806 is already a 12 volt system that came with a 12 volt generator. I don't know this for sure but my 706 is 12 volt with a generator, but it is a gaser. If so all you would need to do is replace the generator and voltage regulator with an alternator with a built in voltage regulator and you would be good to go.



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Andy Elsner

07-22-2002 08:16:57




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 Re: Re: Alternator Conversion in reply to BIG JOHN, 07-21-2002 16:55:48  
Yes I agree but what about the wiring to the external regulator, little bit concerned on exactly how that wiring is reconfigured??



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Doug in OR

07-22-2002 09:05:36




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 Re: Re: Re: Alternator Conversion in reply to Andy Elsner, 07-22-2002 08:16:57  
This assumes you will be using a Delco 10SI alternator and is already a 12 volt, negative ground system.

Remove the regulator and generator. Keep track of where the BAT wire from the regulator goes. This is where you will connect the wire from the BAT terminal on the alternator. The GEN and F or FIELD wires to/from the generator and regulator will be completely removed. Tape them off if you wish. If your regulator has a L (lights) terminal, don't use this wire either. If this is your case, tie this wire to any hot battery connection - probably at the ammeter. Include all appropriate fuses.

Otherwise, wire the alternator as described in the articles. Take BAT from the alternator (using heavy wire - AWG 10 if possible) and connect it to where your regulator BAT wire went. Connect pin 2 on to alternator to the BAT stud on the alternator.

Connect alternator pin 1 to your ignition switch.. through the indicator light/diode/resistor - depending on how you wish to configure this exciter terminal. I didn't note if your tractor was a diesel - if it is, you can probably connect the alternator pin 1 wire directly to the ignition switch. I recommend wiring this through a 47 ohm, 2 watt resistor if you decide to eliminate the indicator light or diode - as a current limiter in case you develope a wire short or alternator problem

As for pulley size, try to make the alternator pulley 1/3 the size of the drive pulley. If you can't find a pulley that small, do the best you can.

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Doug in OR

07-21-2002 13:22:33




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 Re: Alternator Conversion in reply to Andy Elsner, 07-21-2002 10:47:54  
There's a ton of information right here. Just check the "articles" section, as well as Genesee Products - one of the sponsors here.

Go to www.geneseeproducts.com and read their info. They sell conversion kits, but you can use their information and do it yourself.

The only issue that you'd need to solve yourself is how to fabricate a mounting bracket for the alternator.



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bob

07-21-2002 15:08:26




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 Re: Re: Alternator Conversion in reply to Doug in OR, 07-21-2002 13:22:33  
i agree with doug in or. it is really simple once you see the wiring diagram. i have done a bunch of them, mostly on h,m,oliver and ford 8 & 9 n. need any help, let me know. bob's shop 402-482-5544



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bob p

07-23-2002 16:14:41




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 Re: Re: Re: Alternator Conversion in reply to bob, 07-21-2002 15:08:26  
when you get to the point of hooking up to the coil, you need to connect that wire to anything that will give you voltage when the switch is turned on. that is what will tell the alt to excite (start charging).



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Andy Elsner

07-21-2002 16:05:08




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 Re: Re: Re: Alternator Conversion in reply to bob, 07-21-2002 15:08:26  
Bob, one thing I've noticed though is all the literature is for a gas engine conversion that has a coil and most likely points. My 806 is a diesel. Have you ever converted a diesel, not sure what to do following the steps when it gets to the parts about wiring to the coil? Any thoughts?



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Bob M

07-22-2002 12:38:14




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 Re: Re: Re: Re: Alternator Conversion in reply to Andy Elsner, 07-21-2002 16:05:08  
Andy - For a diesel conversion, you simply skip all wiring stuff relating to the ignition coil. ...Bob M



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Andy Elsner

07-21-2002 15:50:31




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 Re: Re: Re: Alternator Conversion in reply to bob, 07-21-2002 15:08:26  
Thanks to both of you for the info. I will check both of your suggestions and I may give you a call bob if I run into problems. Thanks again.



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