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Farmall & IHC Tractors Discussion Forum
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Thanks to the helpful memebers

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Rifle99

06-12-2019 11:02:03




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I've posted some questions for help in solving the charging problem on my Super AV vintage 1948 specifically about replacing the voltage regulator which I thought might be the culprit. I checked Steiner Parts website as a member recommended. As it turns out, my machine has a cut out regulator rather than a voltage regulator. I'm not sure if it's good or bad. I want to leave it under that configuration for originality when I have to sell it rather than trying to rewire to go to a voltage regulator. The replacement cutoff requires lights and a three brush generator. I bought a new generator but I don't know if it's two or three brush and neither does the company that I bought it from. It's identical to the old one. It's made in India by Lucas with part# 26045081. The ammeter needle stays in the middle but goes to discharge when I put the lights on. Any idea how many brushes are in these new generators? Am I overlooking something as far as the cutout being bad? How do I test the generator output to make sure it's not bad? Sorry to ask so many questions. Thank you.

Dan

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John M

06-12-2019 15:45:51




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 Re: Thanks to the helpful memebers in reply to Rifle99, 06-12-2019 11:02:03  
IF I looked at the right genny, that's a 12 volt genny, and the only way to see if its a 3 brush, which I doubt, is to take it apart. If you have installed it, and a 6 volt cut out, one of them if fried.



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Janicholson

06-12-2019 18:27:10




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 Re: Thanks to the helpful memebers in reply to John M, 06-12-2019 15:45:51  
I could not find that part number in a Lucas anything. It should be a Delco Generator as noted by Gene. Jim



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John M

06-12-2019 18:38:06




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 Re: Thanks to the helpful memebers in reply to Janicholson, 06-12-2019 18:27:10  
I cant seem to find the exact site I found that on at the moment. I found it at work, and Im home now. I thought I had replied then, but I guess I didn't. I Just googled Lucas generator and the part number.



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Janicholson

06-12-2019 14:59:15




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 Re: Thanks to the helpful memebers in reply to Rifle99, 06-12-2019 11:02:03  
The cutout is a device that disconnects the generator from the rest of the tractor. It senses gen output and connects the gen to the amp meter. It also disconnects the gen from the tractor. It does this when the gen is not making more voltage than is in the battery. With out it the generator would suck up battery juice till it was dead when the tractor was off. The wire that does not connect to the cutout from the loom is connected to a charge regulating control in the light switch. There are 4 positions L,H,D,and B. These stand for Low charge, High Charge, Dim lights, and Bright lights. All positions of the knob except L are full set output. A three brush generator has 3 brushes touching the commutator look under the thin band to see inside. You need to polarize the new Gen by jumping across from Bat to Gen (or Arm) on the cutout to give the generator a first magnetic charge. Just one second with a solid cop[per wire will do it. JimJim

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