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Just wondering about 12 volt conversion

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RobJJ

04-03-2007 19:30:54




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My WD45 just got home today...it is set for 6 volt. Someone said something that has me wondering...this tractor is set up for neg. ground, but this person mentioned positive ground. Is the WD45 neg. or pos. ground? I'm waiting for the manuals to get delivered, so for now, this list is my sole source of information.

ALSO...in regard to the 12 volt conversion. At this point, all I know is that I can easily pull start the tractor and it kicks right over. That tells me the coil/distrib/plugs/plug wires/points and starter switch are ok, right? The battery, starter and generator are unknown at this point if they are any good. I was wondering if there is any reason I couldn't swap in a 12 volt battery just temporarily, to see if the rest of the system (except generator of course), is working ok. There are no lights on the tractor (yet), so, would a few minutes under 12 volt power hurt anything else? I wouldn't think the coil or points would be hurt for a short time, and I'm sure the starter would LOVE the 12 volts...am I overlooking anything that might be hurt being subjected to 12 volts? THanks,,
Rob

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Texas Denny

04-04-2007 05:32:54




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 Re: Just wondering about 12 volt conversion in reply to RobJJ, 04-03-2007 19:30:54  
Rob, I don't know for sure how you started it. The WD-45 has battery ignition. Either the generator must work or there must be a battery with with some juice. And if it started quick, I think it would be the battery as the generator would need to turn awhile before it started to charge. The 45 is 6V positive ground. It will start with either polarity but the generator will only charge a 6V battery with it hooked up positive ground. If it starts good, you may be able to get it to start with 6 volt if you have very good cables of 0 or 00 gauge. Could use 1 AWG and double them somehow. I did that on one of mine and it turns over like a 12 volt. Good wire and connections are essential on 6V. If you stay 6V, you won't need to change the generator.

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souNdguy

04-04-2007 08:29:11




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 Re: Just wondering about 12 volt conversion in reply to Texas Denny, 04-04-2007 05:32:54  
Just wondering why it would only charge p-ground. The genny really shouldn't care one way or the other once polarized.. same with the cutout..

Soundguy



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Texas Denny

04-04-2007 17:31:55




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 Re: Just wondering about 12 volt conversion in reply to souNdguy, 04-04-2007 08:29:11  
True. But I didn't offer advice on how to do that.



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soundguy

04-04-2007 17:42:20




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 Re: Just wondering about 12 volt conversion in reply to Texas Denny, 04-04-2007 17:31:55  
I realize that you dind't offer that advice.. i was only wondering about the comment that the genny would only charge that certain polarity...?

Soundguy



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Texas Denny

04-04-2007 19:03:21




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 Re: Just wondering about 12 volt conversion in reply to soundguy, 04-04-2007 17:42:20  
These problems can get so involved and I guess I just tried to cut a corner to reduce typing.



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soundguy

04-04-2007 19:22:21




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 Re: Just wondering about 12 volt conversion in reply to Texas Denny, 04-04-2007 19:03:21  
Oh ok.. I got ya.. you were actually trying to -not- get into the flipping polarities issue. No problem... My exp with AC is limited.. I was just making sure they didn't have some kind of weird alien genny on then that for some reason or another was polarity locked..e tc..

Soundguy



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Texas Denny

04-05-2007 07:14:56




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 Re: Just wondering about 12 volt conversion in reply to soundguy, 04-04-2007 19:22:21  
Though you may not have a lot experience with AC, your posts have always shown that you know your stuff. A lot of tractor technology is the same between all makes. I always read your posts.



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souNdguy

04-05-2007 11:19:05




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 Re: Just wondering about 12 volt conversion in reply to Texas Denny, 04-05-2007 07:14:56  
Speaking of ac.. I wouldn't mind finding a wd / 45 or c one ofthese days to fluff out my collection. For AC.. I've only got a G.. though it sure is easy to maintain.. reminds me of changing the oil on a lawnmower..

Soundguy



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Texas Denny

04-05-2007 19:22:23




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 Re: Just wondering about 12 volt conversion in reply to souNdguy, 04-05-2007 11:19:05  
I've got both but want to keep my WD-45. I would sell the C. It has a rebuilt engine and new rear tires. Send me an email and I'll send you pictures.
Denny



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RobJJ

04-04-2007 06:55:11




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 Re: Just wondering about 12 volt conversion in reply to Texas Denny, 04-04-2007 05:32:54  
Hmm,

Interesting. I'm wondering if the only problem is that the battery was hooked up wrong (ie. neg. ground). That certainly would account for it running for awhile for the previous owner and then not getting recharged and then him thinking there was a substantial problem with the whole electrical system. The battery was showing 2.2 volts when I got it home and checked, so badly discharged. I'm getting the batt. charged today and will try it tonight...is there a simple way to determine if it actually should be negatively grounded? Ie. is there a chance a previous owner might have switched it to neg. ground?

Second, if it should have been positively grounded, what damage might have been done in the process? Might it have damaged the battery beyond repair? How about the generator? From the other posts, it doesn't sound like the ignition system or starter would have been affected...is that correct? Anyway, I'll have the battery charged (assuming it will take a charge) and then depending on what you all have to say, will see where I go from there. If the battery is dead (ie. won't hold a charge), should I be able to briefly hook up a 12 volt to see if the rest of the system is operable (don't want to buy another 6 volt just to find out something else in the system is kaput. I'd prefer to keep it as 6 volt if possible, but if I have to replace components, I might go ahead and convert to permanent 12 volt.

If I were to temporarily put in the 12 volt batt., I'd think only the generator might be of concern...should I just disconnect it while the 12 volt batt is in use? Would I hook up the 12 volt as a pos. ground?

Thanks VERY much to all who have replied.

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Steve in NJ

04-04-2007 04:12:49




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 Re: Just wondering about 12 volt conversion in reply to RobJJ, 04-03-2007 19:30:54  
The 6V system works fine when it's kept in good working order. The 6V systems need a little more attention than a 12V system. Some folks like converting to 12V for numerous different reasons. The 12V transition won't hurt the starter any as long as you're not cranking on it for long periods of time. This heats the unit up quickly. If the engine is tuned and timed correctly, a few revolutions of the starter motor is all that's needed to light her up. In that case, the starters stay around for a long time providing they're in good shape to start off with. We offer a nice 12V conversion kit if interested as well as our replacement 6V wiring kits. If you do decide to switch to 12V, make sure you install the correct ohm coil for the conversion. Our 12V kit gives you all the correct switches, wiring, step by step installation instructions, diagrams and a Voltmeter to replace the Ammeter for safe and accurate charging rates. Drop us a line, or give us a call. Be happy to help you out in anyway...
Steve@B&B (973) 632-5596

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paul sebek

04-03-2007 22:39:24




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 Re: Just wondering about 12 volt conversion in reply to RobJJ, 04-03-2007 19:30:54  
Since you pull started it, it's most likely the electrical system is working, assuming the battery is dead or missing hence needing the pull, as the generator would then power the ignition system. The starter and starter solenoid are the only questionable parts at this point. Just make sure of the battery polarity, it should be 6 volt positive ground according to the manual and my wd45.



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Joe(TX)

04-04-2007 06:02:43




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 Re: Just wondering about 12 volt conversion in reply to paul sebek, 04-03-2007 22:39:24  
Paul
The starter does not care what the polarity is.
There is no solenoid on the 45.



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paul Sebek

04-04-2007 13:06:15




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 Re: Just wondering about 12 volt conversion in reply to Joe(TX), 04-04-2007 06:02:43  
I used solenoid as a reference to the pull switch on the starter. The starter is a DC motor, polarity always matters.



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BCnT

04-04-2007 15:24:27




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 Re: Just wondering about 12 volt conversion in reply to paul Sebek, 04-04-2007 13:06:15  
i got a picture of ben franklin that sez starter will turn same way no matter which side is hot...i've converted waaay too many to let this go by.



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paul sebek

04-04-2007 20:47:40




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 Re: Just wondering about 12 volt conversion in reply to BCnT, 04-04-2007 15:24:27  
It turns out the starter isn't a permanent magnet motor. My arguments were based on that. I didn't think they were using variable field motors that early. I stand corrected.



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paul sebek

04-03-2007 22:13:07




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 Re: Just wondering about 12 volt conversion in reply to RobJJ, 04-03-2007 19:30:54  
The WD45 uses a 6 volt positive ground system. Be careful the battery might just be reversed. And with luck the generator"s not fried. Watch the charge on the ammeter. You might want to make sure the polarity is correct, the ignition system doesn"t care but the starter and generator will, unless you like driving backwards in first gear, assuming it will start that way at all. 12 volts won"t hurt the starter as long as it"s less than 10 seconds but it can damage the generator, coil, and will blow any six volt lighting thats installed. The 12 volt conversion changes everything to 12 volt negative ground.

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willie in mn

04-04-2007 03:16:48




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 Re: Just wondering about 12 volt conversion in reply to paul sebek, 04-03-2007 22:13:07  
Paul
Starter doesn't care about polarity. It will spin the correct direction no matter whether pos or neg ground.



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paul sebek

04-04-2007 18:42:02




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 Re: Just wondering about 12 volt conversion in reply to willie in mn, 04-04-2007 03:16:48  
I just popped mine out and tested it, you're right. Huh, the old starter didn't work both polarities. Of course it locked up 3 months after I got my tractor,too.



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BCnT

04-03-2007 19:48:53




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 Re: Just wondering about 12 volt conversion in reply to RobJJ, 04-03-2007 19:30:54  
wont hurt a thing...just hook it up the same as the battery thats in tractor.



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