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Voltage Regulator adjustment

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Al

09-30-2000 14:08:49




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How do I increase the voltage regulator on an 8N to 9 volts.
I have an 8volt battery but it regulates at about 7.8




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STUMP PULLER

09-30-2000 15:24:55




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 Re: Voltage Regulator adjustment in reply to Al, 09-30-2000 14:08:49  
THE CORRECT VOLTAGE TO CHARGE YOUR 8V BAT IS ABOUT 9.8V. GOOD LUCK



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Dell (WA)

09-30-2000 14:42:14




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 Re: Voltage Regulator adjustment in reply to Al, 09-30-2000 14:08:49  
Al..... .by going back to the guy that sold you the 8 volt battery and demanding an 8 volt regulator. Guess what?

Used to be, back in the olden times, you could get a voltage regulator adjusted on a special "test bench" and maybe get it adjusted for 9 volts but you're pushing your 6 volt generator to an early grave. Now-a-days, your lucky to even find somebody that knows what that is. They just want to sell you a new regulator, which by the way is cheeper to do than to adjust a mechanical regulator.

The 8 volt battery, was Detroits "band-aid" to starting higher compression V8's in the early 50s. They were saved by the development of solid state diodes usable in lightweight, efficent 12 volt alternators.

I once worked on a highway patrol car two-way radio that had a 12 volt alternator the size of a gallon bucket and a stack of seleinum rectifiers the size of dictionary. Trust me, todays 12 volt alternators are much more efficent and reliable.

You might want to check the "archives" at the top of this most excellent N-Board, search "8 volts" for example.

Remember, for 6 volt N-Tractor systems, "clean, bright, and tight" is the mantra..... .Dell

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tOTG

10-02-2000 05:08:31




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 Re: Re: Voltage Regulator adjustment in reply to Dell (WA), 09-30-2000 14:42:14  
Dell is being a little closed minded here. It is easy to trick up the regulator to charge an 8V battery.

Biggest problem is getting to it under the hood. On your own there; when you do remove the cover and see two arms with breaker points. One is a cutout and will open when the tractor is shut off to prevent draining the battery through the generator. The other points regulate voltage. By bending that little hook that the spring connects to you can increase the spring tension and boost the voltage. Use a voltage meter and bend it a little more or less until you get the voltage you desire. I set them to the rating of the battery plus 15%. If this isn't clear, e-mail me with question. John.CO

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Al

09-30-2000 18:30:05




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 Re: Re: Voltage Regulator adjustment in reply to Dell (WA), 09-30-2000 14:42:14  
Thanks much



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Claus

09-30-2000 14:20:59




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 Re: Voltage Regulator adjustment in reply to Al, 09-30-2000 14:08:49  
There are 2 and 3 bobbin regulators. If you have the 2 bobbin type and you adjust the gap of the voltage contacts, you will also change the max current that the regulator will permit the generator to put out. In any case, the coil on the right (tabs towards you) should be the voltage coil. Bend the upper arm upward a little. Note: These regulators are not made to be adjusted so this is a hit and miss adventure.
Happy Motoring
Claus

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