12v conversion for 440ic

cardoc1975 · Post by **cardoc1975** » Fri May 02, 2008 9:28 am

I have a nice 9000# winch that would be very handy on my 440 gas but it is 12v. I have an alternator and every thing to convert it over. don't mind fabricating a bracket but if one is available would be easier to buy one. Any body making one to install delco one wire alternator on?

CELSESSER · Post by **CELSESSER** » Fri May 02, 2008 11:24 am

A purpose built bracket would be nice. Mine has a bolt welded to the square sideplate that bolts to the nosepiece and frame. That bolt clamps a slider bracket for adjusting the belt tension. Works, but not very clean looking.

I found the article in yesterdays tractor helpful

http://www.ytmag.com/articles/artint131.htm

Chuck

Lu47Dan · Post by **Lu47Dan** » Fri May 02, 2008 12:59 pm

If you are wanting to use the winch extensively , I would suggest you upgrade the Alternator to a 100 amp one wire , as a stock alternator 35 -50 amp one won't run the winch as well and you can do the up grade in your own shop with a conversion kit available from Jegs for around $35 .
http://www.jegs.com/p/JEGS/750754/10002/-1/10685
I have used these kits for my own equipment and several other tractors since I have found them . I clean the alternator , and beadblast the cases and fan . Then clearcoat the case and paint the fan a matching color to what it will be installed on . You get new bearings , regulator , brush holder and brushes , and diode assembly . I started rebuilding my own when I got charged for a rebuild that did not work and the rebuilder basically told me too bad . Dan

JD440ICD2006 · Post by **JD440ICD2006** » Fri May 02, 2008 7:42 pm

That looks like a good upgrade for those that can stand seeing a stuby alternator on a vintage piece of equipment.
I am wondering if this could cause over charging if you are not using the winch?

"Once the voltage regulator turns on, the alternator will remain on and charging until the engine comes to a complete stop."

That is unlike a generator/regulator that came on them that will cut out when the battery gets up around 14 volts + or -.

Lu47Dan · Post by **Lu47Dan** » Sat May 03, 2008 1:48 am

The Alternator conversion I did for my IH Super-H , once the regulator is energized and has brought the battery up to full charge it sets at 3 amps until I shut the tractor down . I rebuilt one for a buddies tractor and it has been on the tractor for about 2 years and he uses his tractor to brush hog with during the summer , haul wood in the spring and fall , and then plow snow in the winter . He has not had any problems with it overcharging the battery on the tractor . I figure 2-3 amps is what the ignition system uses to run the engine , in the winter when I am running the lights on my tractor it charges higher but will drop back to 3 amps when I shut the lights off . The reason alternators were chosen over generators was they would charge at an idle instead of requiring higher rpm's to supply the necessary power to run things like car radios and other accessories that more and more people wanted . JMTC . Dan

JD440ICD2006 · Post by **JD440ICD2006** » Sat May 03, 2008 5:58 am

That brings back some memories, I recall riding in the family vehicle. The lights and heater fan ran at a speed that was in-line with how fast the engine was running. Starting off from a stop sign, the lights got brighter and brighter until time to shift gears.
The most interesting thing were those vacuum wipers. You had to make a choice, either accelerate, or be able to see when it was raining.

I chose generators over alternators on all of my tractors due to liking the originality. I put a new wiring harness, rebuilt generator, and new regulator on my 730DW 6 years ago. I converted the system from 6 to 12 volts, it is pony start.
I have never had to use jumper cables, and in fact have the same 12 volt battery, which usually goes in 3 years or so.
I also have generators and the old cut outs on my two JD Ms. I just have to remember to change the switch to high charge if I am running the lights.
But I enjoy running them just like they were designed.
Nothing at all wrong with improving the charging systems with alternators.

cardoc1975 · Post by **cardoc1975** » Sat May 03, 2008 3:50 pm

Sounds like some great tips. Thanks guys!! I don't plan on making a living with my 440 and winch but there are some deep hollers on my place and I will use the winch primarily to help drag in some fire wood.

alabamaed36046 · Post by **alabamaed36046** » Sat May 03, 2008 7:33 pm

I converted My 440IC to 12 volt in 2000.
Previous owner disconnected gen and installed 12 v coil. Just ran it till the bat was dead then charged it.
I added the std Chev alternator and have never regretted the swap.
The bracket wasnt bad but I reworked it twice to get out all vibration. It will need supports front and rear.
I will see about getting pics this weekend.
I did fit the alt under the hyd hose just like the original gen.
The alt charges 20 to 25 amps for a few seconds after cranking then drops back to 3 to 5 for the rest of my running time.
Ed Shelton
alabamaed36046

Lu47Dan · Post by **Lu47Dan** » Sun May 04, 2008 12:01 pm

One thing that should be included when you convert over to a 10-SI alternator from the generator is the spacer GM used from the factory . I have found over the years that the spacer helps stiffen the alternator , making it less likely to break the adjustment tab off the case . They are not to hard to make them if you did not get one with the alternator . A piece of 3/8" X 5/8" tubing and a piece of 1/4" X 1-1/4" barstock . The barstock is for the tab that mounts to the back of the case to support it .
This is the alternator That I rebuilt for the IH Super-H tractor .

Drive end

Rear case .
Took about two days to clean , beadblast and clearcoat the case halves to make it look this nice . There was oil and dust caked into the fields and the stator . When it came off the truck that I was scrapping it still ran

Dan

cardoc1975 · Post by **cardoc1975** » Sun May 04, 2008 8:07 pm

Nice job on the alternator!!!On the way to the shop to maybe make an alternator conversion I heard a pop and hiss under the hood. Figuring that I blew a hydraulic hose I investigated only to find the center pump housing split right behind the generator

So I pulled it off and tore it down. Pump gears look like new and end housings not chewed up or scarred.Not sure why this happened but sometimes you're the windshield sometimes you're the bug. I'm going to see about parts tomorrow.If anyone has any parts let me know as I want to get it back together quickly.Too much funout there to be torn down too long.

Tim_in_IA · Post by **Tim_in_IA** » Wed Mar 18, 2009 10:08 am

Sorry to revive an old post but I am going through this thought process now. I have a 6 volt system but most of my electrical will need replacing and I am currently having trouble getting it running so I think now is as good as time as any to go 12 volt. Is there a perfect wish list of what components I need to make the change? Will I reuse the starter or do I need a different one? I have a 440IC as well.

What is the best alternator to look for when moving to a 12 volt and what other new components will be required?

Tigerhaze · Post by **Tigerhaze** » Wed Mar 18, 2009 10:52 am

Lu47Dan wrote:If you are wanting to use the winch extensively , I would suggest you upgrade the Alternator to a 100 amp one wire , as a stock alternator 35 -50 amp one won't run the winch as well and you can do the up grade in your own shop with a conversion kit available from Jegs for around $35 .
http://www.jegs.com/p/JEGS/750754/10002/-1/10685
I have used these kits for my own equipment and several other tractors since I have found them . Dan

Sorry to poach the post, but I had a question as well. Does this upgrade kit convert a Delco 10-S, 35-50 amp 1 wire alternator to 100 amps, or is it only to rebuild an existing Delco 10-SI, 100 amp alternator? The information wasn't clear on that.

Tim, to help partially address your post, my understanding is that the main components switched out in a 12V conversion are an alternator to replace the generator and voltage regulator, the new bracket needed to hold the alternator, and the associated new wiring. My understanding is that the starter/solenoid would not be changed at all.

If you have a gas engine, you will need to either replace the 6V coil with a 12V coil or put resistors ahead of the ignition wire to the 6V coil.

Tim_in_IA · Post by **Tim_in_IA** » Wed Mar 18, 2009 11:01 am

No problem. So would this then be a 12 volt positive ground or a 12 volt negative or does it matter? I would be putting a pertronix coil and electronic ignition in anyway so I'll be changing those out. I'd like it to be 12 volt positive but I don't know how this would impact the starter?

joeturner1977 · Post by **joeturner1977** » Wed Mar 18, 2009 11:18 am

Starter does not care about the polarity. However the alternator NEEDS to be negative ground in order to work.

joeturner1977 · Post by **joeturner1977** » Wed Mar 18, 2009 11:19 am

Starter does not care about the polarity. However the alternator NEEDS to be negative ground in order to work.

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