JD 650 Battery Polarity Issue

[laptop1]

no way

 

[Coyote machine]

If they say to attach the neg (-) terminal to a non-painted surface, then they've made some assumptions and are doing a disservice to the reader and they're own reputation.

They're not out to please you or meet with your approval of what they wrote. They've all written what is the accepted standard of how to charge a battery in the 21st century. And if YOU have a problem with what is accepted norm/standard contact them and try to have it done your way. Good luck! Try this: find several examples, anywhere that address what you think should be addressed and isn't, and link to them.

yep.

positive and case neutral ground systems still exist. and I'm not talking about 6v tractors from the 40's and 50's.

Some heavy equipment and big trucks... etc. this was a clear case of 'fail' on the part of the person writing the manuals. it's simply to be inclusive of better info for netagive, positive, and neutral or isolated case ground. that's a finite amount of info

:banghead: The world doesn't conform to most, if any individuals particular view(s). Rather than trying to convince ME how things should be done, try contacting all those who YOU know wrote everything wrong....
I didn't write what is the accepted norm and I'm not going to try to change it either; I'm the wrong tree to bark up if you want things to change to fit your worldview.:confused3:

 

[Tx Jim]

Back to the O.P., is there the possibility of pos. ground 650's?

Sure it's possible someone inadvertently attached battery cables incorrectly but do I think it happened when it was assembled when it was NEW maybe but not likely. The 650's were shipped to the dealers in a crate with the tires/rims/fenders off then assembled & PDI. I can't remember if the battery was dry(no acid) or not but I think(IIRC) battery was installed in the tractor.

 

[Tx Jim]

yep.

positive and case neutral ground systems still exist. and I'm not talking about 6v tractors from the 40's and 50's.

Some heavy equipment and big trucks... etc. this was a clear case of 'fail' on the part of the person writing the manuals. it's simply to be inclusive of better info for netagive, positive, and neutral or isolated case ground. that's a finite amount of info

Could please list some of these later model machines that have 12V positive ground battery connections???? Thanks,Jim

 

[CobyRupert]

They're not out to please you or meet with your approval of what they wrote. They've all written what is the accepted standard of how to charge a battery in the 21st century. And if YOU have a problem with what is accepted norm/standard contact them and try to have it done your way. :

This isn't about ME. Saying to connect the negative lead to a non painted surface relies on assumption, is non-inclusive, and could be dangerous. They are doing themselves and the reader a disservice. Why would I bother to argue with them? They'd probably be as receptive as others here. If you can't trust an organization , I'll let the market decide. But to be honest, I won't discount the standard because I haven't read it, so maybe they do acknowledge positive ground systems. For safety's and liability's sake, one would hope so.

 

[Coyote machine]

This isn't about ME. Saying to connect the negative lead to a non painted surface relies on assumption, is non-inclusive, and could be dangerous. They are doing themselves and the reader a disservice. Why would I bother to argue with them? They'd probably be as receptive as others here. If you can't trust an organization , I'll let the market decide. But to be honest, I won't discount the standard because I haven't read it, so maybe they do acknowledge positive ground systems. For safety's and liability's sake, one would hope so.

True dat! This definitely isn't about you. What the SAE's standard is about ISN'T even about tractors, either. They ARE about vehicles and the correct way to charge a battery. Who knows why you'd bother to argue with them, or for that matter with me?! I'm in no position to change anything, so why go on about trust in an organization, assumptions, and your preconceived notions about what is exclusionary/supposedly dangerous, etc.?
It's pretty much a given that positive ground systems aren't covered for reasons already mentioned numerous times. So either accept what is or make an effort to change it, because complaining about how things are doesn't effect any change to this non-existent 'market'.eace:

 

[zzvyb6]

Here's what happens when you have the battery polarity wrong. Matter and anti-matter annihilation...

Tractorpulling insane engine blow up, Engine flys out of the tractor! - YouTube

 

[Oaktree]

Back to the O.P., is there the possibility of pos. ground 650's?

Doesn't seem likely. It would mean twice the inventory of electrical parts for JD/Yanmar, and serve no useful purpose. Has the OP verified with a voltmeter that this machine really has a positive ground and not just a reverse-charged battery?

 

[CobyRupert]

Here's what happens when you have the battery polarity wrong. Matter and anti-matter annihilation...

Tractorpulling insane engine blow up, Engine flys out of the tractor! - YouTube

:thumbsup: Exactly! You can see him flip the "Connect reverse polarity battery" switch right at 0:33. Why do they even put those switches on tractors?!

 

[Coyote machine]

Here's what happens when you have the battery polarity wrong. Matter and anti-matter annihilation...

Tractorpulling insane engine blow up, Engine flys out of the tractor! - YouTube

Good one! That's actually matter and antimatter coagulation!
I think the kid must've adjusted the injection pump.