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Voltage Regulator

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Harold R
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Voltage Regulator

Postby Harold R » Wed Jun 22, 2005 8:42 pm

In the ongoing effort to bring my '74 up to some sort of originality, the voltage regulator that was on the tractor when I got it does not appear to be original. The's no part number on it, and, it seems to be short a couple of connections. Would a standard 12v reg for a Chevy, circa 60's work? This is what was on it.

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Buzzard Wing
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Postby Buzzard Wing » Thu Jun 23, 2005 6:24 pm

Not sure I can answer this properly, but it just looks like a run of the mill regulator to me. I know the generator is a bit special because it runs at lower rpm's than a car, but the regulator merely cuts the excess amperage to ground once the battery is 'full' I have seen cross references to off the shelf regulators, but didn't need one so didn't pay too much attention.
My guess is that NAPA or any good parts place can find the right one in a catalog. About $25 is my guess.
Also I have found ignition and electrical parts to be reasonably priced at a dealer (C&G).
When I had the generator cleaned and overhauled I took the regulator too and he did set it correctly. It should have 2 screws that hold the top on. He also painted that too. Got a decent before and after shot here:
http://i2.photobucket.com/albums/y40/Bu ... 5d6421.jpg
http://i2.photobucket.com/albums/y40/Bu ... 8c830b.jpg
Only the wires and cap are new.
1971 Cub (Rufus) 1950 Cub (Cathy) 1965 Lo Boy Fast Hitch (Nameless III) 1970 Cub 1000 Loader & Fast Hitch (Lee)

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Arizona Mike
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1947 Circle series Farmall Cub with Armstrong lift, belt pulley, 5"rims 6" tires, SN 563

1949 Farmall Cub with high crop option and hydraulics

1955 Farmall Cub with fast hitch

1955 International Cub Loboy with fast hitch

1957 Farmall Cub with fast hitch

1959 Farmall Cub with fast hitch
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Postby Arizona Mike » Thu Jun 23, 2005 7:48 pm

hr, i found a new replacement through John at JP Tractor for my '59...probably the same.. I think TM Tractor and Carter and Gruenewald sell them too. They are about $35.
"The time you spend making sure you are safe is probably the most productive time you can spend!"
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Harold R
Team Cub Guide
Team Cub Guide
Posts: 3280
Joined: Thu Feb 20, 2003 4:54 pm
Zip Code: 71203
Tractors Owned: 1948,55, and 56 Farmall Cubs.
Circle of Safety: Y
Location: Louisiana

Postby Harold R » Thu Jun 23, 2005 10:30 pm

AZ Mike, I've asked Tom at TM where I got the 12v gen, and he didn't have any. I'll try JP's if I can't find a match at a local parts store. I have shopped the websites of the major parts house and have spotted several that look correct. However, I'm a dummy when it come to this DC voltage regulation. Q. Is a voltage regulator specific? 6 or 12 volt?

BW, thanks for those pictures, that helps a lot. Nice transformation.

WKPoor
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10+ Years

Postby WKPoor » Thu Jun 23, 2005 11:36 pm

Have you tried Case IH? I have 2 original 6V regulators that I hope work. By the way I believe all Farmall tractors of a given age would have the same gen and reg on them. My Cub and H are both close in year and have the exact same.

Jim Becker
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Postby Jim Becker » Fri Jun 24, 2005 7:10 am

hr's49cub wrote:Q. Is a voltage regulator specific? 6 or 12 volt?

Yes. They each regulate to a specific voltage.


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