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Jumping a 6v

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ben

01-12-2000 14:23:52

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This may be a dumb question but if it is true there are no dumb questions only dumb answers then here goes:

Can you jump start a 6v with a 12v? Also, since they are positive ground, what do you hook to where?

thanks in advance

-ben

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ben

01-13-2000 14:11:09

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Re: jumping a 6v in reply to ben, 01-12-2000 14:23:52

Thanks for all the responses.

Someone suggested switching to 12V. The reason I don't do this from the start is because the engine was stuck and we found a lot of water in it and I want to see if it will run before I commit the money to convert to 12v.

I imagine I will need a lot of juice since it will be the first time it will have ran in a long time (if it starts at all...).

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Corky

01-13-2000 19:02:06

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Re: Re: jumping a 6v in reply to ben, 01-13-2000 14:11:09

The starter will handle 12v without any trouble.Like I told you before it is not recommended.I'm not being smart just don't want you to end up blind when the battery blows up

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100Glenn

01-13-2000 10:10:40

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Re: jumping a 6v in reply to ben, 01-12-2000 14:23:52

I jumped my 6V Farmall 100 from a 12V Ford 2810 diesel last weekend. I charged the 6V battery, but it turned out to be bad. I clamped negative to negative. Since the 100 is positive ground, I clamped the positive on the Ford to the fender of the 100. She cranked right over and fired. I only let it run this way about five minutes - long enough to diagnose the dead generator. The sucker wouldn't make a single volt. As soon as I took the positive clamp off the fender, it died; that's how I know it wasn't charging.

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Raymond '54 SA

01-13-2000 09:53:33

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Re: jumping a 6v in reply to ben, 01-12-2000 14:23:52

Might sound kinda smart a__ but would you consider a 12V convertion? Solves alot of this and gives you a lot better starting when the battery is charged. And one - two minutes on the battery charger and starts right up when dead..... ...

Not really intended to be smart A__ed.. Just it was my solution to the problem?!?!

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Corky

01-13-2000 09:52:15

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Re: jumping a 6v in reply to ben, 01-12-2000 14:23:52

Ben as has been said in the previous posts it is dangerous.The best thing to do is keep a spare 6v on hand.But if you have to do it heres how we jumped mine. Disconnect the terminals on the 12v battery that vhecile doesn't need to be running.Then you connect + to+ and -to- you need someone to help as it will only take a second to start.Dont leave the cables on long connect them then hit the starter.After you start immedately unhook the jumper cables reconnect the terminals on your 12v and you are in busness.Be careful

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Kendall

01-12-2000 21:10:11

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Re: jumping a 6v in reply to ben, 01-12-2000 14:23:52

How about keeping an extra 6V battery on hand? I lived in Denver for a few years and I kept an extra car battery in the house where it would not get so dang cold. It came in handy more than once on those cold winter mornings when trying to start my car.

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01-12-2000 20:10:42

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Re: jumping a 6v in reply to ben, 01-12-2000 14:23:52

A little off the subject, but I have noticed that I can't charge my jd40 with the batt hooked up. It is postive ground. The charger shuts off, is this typical of all postive ground tractors.

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Russ

01-13-2000 17:03:46

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Re: Re: jumping a 6v in reply to lc, 01-12-2000 20:10:42

I remember once many years ago where the polarity on a battery became reversed, due to hooking the charger up backwards! When a lead-acid battery is stone dead it will accept charge either way. Just something to keep in mind. On the subject of jumpstarting with 12 volt, I would tow start if its an option, why burn out a starter when you don't have to.

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Corky

01-13-2000 09:38:36

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Re: Re: jumping a 6v in reply to lc, 01-12-2000 20:10:42

I can only speak for myself but I allways disconnect the battery terminals when charging my 6v truck . Allways + to+ and -to- never had any trouble that way.When the battery comes up all you need to do is hook up the terminals and you are in busness and no chance to damage your charging system.

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Ludwig

01-13-2000 05:59:23

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Re: Re: jumping a 6v in reply to lc, 01-12-2000 20:10:42

You are hooking up + to + -to- right?
The ground shouldn't matter.
Do you have some sort of unusual draw sucking down the power?

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Kendall

01-12-2000 14:43:15

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Re: jumping a 6v in reply to ben, 01-12-2000 14:23:52

Always hook positive to positve and negative to negative, regardless of positive or negative ground. Just dont let the vehicles touch. If i were doing this, i think i would just let the 12 volt system charge up the 6 volt battery for a few minutes, disconnect the cables and then try starting.

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Rick

01-12-2000 16:04:39

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Re: Re: jumping a 6v in reply to Kendall, 01-12-2000 14:43:15

Ben you need to disconnect your gen if it is 6 volt our you will burn it up and you volt regulator if you put 12 volts in it.

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Ludwig

01-12-2000 17:52:03

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Re: Re: Re: jumping a 6v in reply to Rick, 01-12-2000 16:04:39

Nope, I think yer both wrong. We've jumped 6v from the pickup for years. If you leave the 12v on the 6v for minutes you're going to burn the battery cables off. They can get real hot in a matter of a minute.
Just get the truck in close, hook 'em up, + to + -to -, hop on the tractor and start 'er up. It won't take long to build up the needed juice.
After years and years of starting an H, M and Super M this way the only time we ever had electrical trouble, other than frozen batteries from neglect, was because one of the great uncles put it in backwards and then it still started and ran for along time till I figured it out. Then I had to replace the regulator.
Still this is a real pain, you probably ought to figure out your problems and start off the battery.

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jakee

01-12-2000 18:33:53

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Re: Re: Re: Re: jumping a 6v in reply to Ludwig, 01-12-2000 17:52:03

we sell a ton of 2-n 9-n 8-n,s,pull starting truck up make ground then use hot lead to jump on the starter pole,battery to battery 12v to 6v have lost a few 6v battry,s do to (%$#@#%$$##)GOT ASCID IN MY EYES ONCE FOUND A BETTER WAY

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Ludwig

01-13-2000 05:58:08

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Re: Re: Re: Re: Re: jumping a 6v in reply to jakee, 01-12-2000 18:33:53

I admit its all hell on batteries, and I do always wear safety glasses when I'm going it. I also buy good heavy duty batteries. The trick is to not leave them connected very long. I've also thought it might be better to use the cheaper jumper cable so that if you left it too long maybe they'd melt before the battery blew up.

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Burrhead--Hey jakee

01-12-2000 19:49:57

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Re: Re: Re: Re: Re: jumping a 6v in reply to jakee, 01-12-2000 18:33:53

Hang in there jakee, your right again. If they hook the cables up battery to battery somebody's gonna get hurt, or at the very least lose a battery.
Use the solenoid like jakee says or somebody may need a seeing eye dog real real soon, and an extra set of fingers.

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RAW in IA

01-12-2000 19:44:39

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Re: Re: Re: Re: Re: jumping a 6v in reply to jakee, 01-12-2000 18:33:53

I agree about jumping to the starter instead of the battery. I used todo this once in a while, but usually had someone to run the starter and just touched the cable to the starter terminal while cranking, letting it go when it started.

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Burrhead--Amen

01-12-2000 19:51:16

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Re: Re: Re: Re: Re: Re: jumping a 6v in reply to RAW in IA, 01-12-2000 19:44:39

These boys are gonna get somebody blind.

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Rick

01-12-2000 21:26:46

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Re: Re: Re: Re: Re: Re: Re: jumping a 6v in reply to Burrhead--Amen, 01-12-2000 19:51:16

I agree with you Burrhead,when you go putting 12 volt on a 6 volt system your asking for trouble.12 volt WILL take out your regulator and gen. that is why they make 6 volt and 12 regulators and the same with the gen.Then again you mite just get lucky .

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Ludwig

01-13-2000 05:56:12

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Re: Re: Re: Re: Re: Re: Re: Re: jumping a 6v in reply to Rick, 01-12-2000 21:26:46

Guess we've always been lucky, still that "leave the thing on to charge for a few minutes" is asking for trouble.
I much prefer to have somebody else there to quick like a bunny remove the cable but sometimes it just isn't practical.
I think Red has a story demonstrating one of the times not to pull start.

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Rick

01-12-2000 21:08:41

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Re: Re: Re: Re: Re: Re: Re: jumping a 6v in reply to Burrhead--Amen, 01-12-2000 19:51:16

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