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1952 Super A

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Boo Boo

01-10-2001 10:33:50




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What is the purpose of having the battery hooked
up backwards, I read about this stuff back in high school but didn,t think I would ever come
across such a system, What has to be done to
switch the battery back to normal, Does anyone
know of a place on the internet I can read about
this subject.




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gene b

01-11-2001 06:58:24




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 Re: 1952 Super A in reply to Boo Boo, 01-10-2001 10:33:50  
check your regulator they were made for POS gnd when I WAS IN ELECT SCHOOL at FT MON NEW JERSEY in elect school the GE people showed is why pos is the natural gnd lots of 6v systems were that way the bottom of your reg will tell you if it is a DR its stamped on the bottom of the reg



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T_Bone

01-11-2001 06:42:04




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 Re: 1952 Super A in reply to Boo Boo, 01-10-2001 10:33:50  
Hi All, I disagree with it doesn't matter which way a battery is connected exspecially in a 6v system. A postive ground will flow better than a negitive ground on a 6v battery. On a 12v battery them same is also true but is not as noticeable because of the higher exerted force over a 6v battery system. The same however does not apply to electronics. There a negitive ground flow system has a better flow than a postive flow. Almost any electronics book will explain the therory in more detail.

This is also true in DC welding machines as flow is from negitive to postive, hence the term straight polarity.

T_Bone

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dick

01-11-2001 07:45:44




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 Re: Re: 1952 Super A in reply to T_Bone, 01-11-2001 06:42:04  
Hey T_Bone:

The point about positive ground being better than negative ground being better seems to be missing from the electronics books I've seen - can you give us a reference which explains this in detail?



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T_Bone

01-11-2001 09:28:11




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 Re: Re: Re: 1952 Super A in reply to dick, 01-11-2001 07:45:44  
Hi Dick, One reference is Moderen Refrigeration by Goodhart&Wilcox and the one that is a electronics book my grandson has so it'll a few days before I can get the correct title but something like Basic Electronics and can't remember the publisher. When I get the info I'll be sure and post it for you.

T_Bone



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J. Watt

01-11-2001 08:44:06




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 Re: Re: Re: 1952 Super A in reply to dick, 01-11-2001 07:45:44  
Check out "Old Wives Tales and Superstitions" 3rd edition.



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Red Dave

01-10-2001 12:09:15




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 Re: 1952 Super A in reply to Boo Boo, 01-10-2001 10:33:50  
David A has it right. It does not matter to the electricity whether the positive or the negative is grounded. The only reason you think of negative ground as normal is because it is what you are used to. There is a lot of confusion as to the direction of electron flow vs current flow. My background is in electronics and have heard all this before. A long time ago I deceided that the whole argument wasn't worth the effort. For some reason, early cars, trucks and tractors were mostly positive ground, then, in about the mid 50s there was a switch. I have been told several reasons for the change and none of them have made any sense to me from an electrical point of view. Neither way is inherently superior to the other. One caveat to that is that in todays world, positive ground electrical accessorys are not easy to come by. As long as the components of your system are designed for the grounding system you have, keep what you've got.

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Boo Boo

01-10-2001 11:29:12




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 Re: 1952 Super A in reply to Boo Boo, 01-10-2001 10:33:50  
Well David, Matt the thing cranks so slow even
with a new battery I thought it might work better
if it was hooked up negetive to ground.
Do you think the starter is bad, I know a new
battery in a four cylinder car will crank it
fast.



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T_Bone

01-11-2001 06:29:56




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 Re: Re: 1952 Super A in reply to Boo Boo, 01-10-2001 11:29:12  
Hi BB, If all the connections are good and the cables are hunky dory, then I would look at the bearings in the starter as there probaly worn letting the armature drag on the field coils.

T_Bone



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6 Volt Fan

01-10-2001 12:38:52




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 Re: Re: 1952 Super A in reply to Boo Boo, 01-10-2001 11:29:12  
Large conductors - #1 or larger, as short as possible. Clean, tight connections all around, and a good, fully charged battery. A 6 volt system will work just fine. Positive or negative ground is irrelevant.



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Bama Binder

01-10-2001 11:54:49




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 Re: Re: 1952 Super A in reply to Boo Boo, 01-10-2001 11:29:12  
I agree with dick on this...an appropriately sized, healthy battery with good connections will spin the thing fine. Also, old battery cable that has been weathered and internally corroded over the years will not work as well, so you may want to change those out while you are at it...$25 or so for that...If you NEED more power than that, you have bigger problems on your hands...BB



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dick

01-10-2001 11:48:55




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 Re: Re: 1952 Super A in reply to Boo Boo, 01-10-2001 11:29:12  
Quite likely that your problem is in the connections between the battery and starter. A six volt system has to be kept up better than a 12 volt system. Try cleaning all the connections on the big wires and things may improve a good bit. Don't forget the connection between the wire going to the battery and the frame of the tractor - it's often overlooked.



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David A

01-10-2001 10:53:51




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 Re: 1952 Super A in reply to Boo Boo, 01-10-2001 10:33:50  
When I first started learning about electricity, I too could picture a battery as having an excess of electrons (the worker bees) waiting to flow out of the negative terminal through the circuit and back to the positive terminal. A lot of power supplies used to be designed with positive ground. The English were particularly stubborn on this convention.
In practice it really makes no difference. I would NOT change your tractor. Even if you could manage it, you'd gain absolutly nothing except a non-standard confusing tractor. Programming your brain to remember which way to connect a meter, jumper cables, and battery charger is a lot easier.

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Matt

01-10-2001 10:46:03




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 Re: 1952 Super A in reply to Boo Boo, 01-10-2001 10:33:50  
The battery should be hooked up with positive ground, this was not backwards during that era. It was later discovered that electrons prefer to floe from a positive to negative. The reversing to positve ground was to improve the flow of electricty, improving electrical components and spark. I can't remeber what we did to the 300 to change it, but there is a lot of good information from other posts.

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