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Charging problem

A

Anonymous-0

Well-known Member
I posted this in the JD forum but haven't gotten a response so I thought I'd try it here if y'all don't mind.

My 2020 gives me fits. I always have to charge or jump the battery to get it going. I just noticed a black wire that goes to the alternator but is not connected to anything. Being the smart fella that I allege to be, I immediately began to wonder if that might be the crux of my charging problem.

Short of ordering a manual to get an electrical diagram, can one of you folks tell me where that black wire should go? I see no unoccupied couplings where it might plug into.

There are two heavy red wires, a green wire, an orange wire and two black wires.

Thanks!
 
You need the manual for this and other serivce. Do you expect us to purchase the manuals and give you the data for free?

1-80-522-7448
 
If yougo to this site, it will give you a parts breakdown, and a electical diagram that might help you find what you need.
Jim
http://jdpc.deere.com/jdpc/servlet/com.deere.u90490.partscatalog.view.servlets.HomePageServlet_Alt
 
1.) Often, talking nice to the local dealer's shop foreman will get you a copy of the wiring diagram.

2.) Be sure to give him a little more information... is it a gasser or a diesel.

3.) It would NOT be surprising to find someone has swapped alternators, and come up with their OWN wiring scheme.
 
Its a gasser. I'm thinkin you might be right about the field engineered wiring.

The wire in question has the type of conector that plugs it into half of a wiring plug, which would plug into the other half of a plug. Clear as mud? So, it looks like someone eliminated a quick connect plug and put spade connectors on everywhere.
 
Thanks, JT. I went to the Deere site first but couldn't find a schematic. I'll try your link.

P.S.: Don't let buickanddeere find out you helped another fella out. He's against that sort of thing.
 
Did the tractor EVER hold a charge? I had the same problem with my Super M and messed with it for far too long. Took it to my local mechanic and he put a new alternator on it and now it charges and runs perfectly. Like you, I always try to fix things myself, but when I'm over my head, I don't hesitate to go to someone who knows what he's doing and in the long run (after taking far too much time to remedy a problem myself) it pays off. A case in point right now is that I'm restoring a 1951 M that I just bought and like most Farmalls, both seals, front and back of the engine are leaking. I definitely won't even try to do this myself and trying to break it in two and screw the goose trying to stabilize everything and am taking it to our local IH dealer. I have the equipment to do the job but know my limitations. It's money saving in the long run, because when I have dinked around with something and taken both too much time and spent too much money (according to my resident financial officer) I take it where they know what the hen they're doing. Good luck.

Pat
 
I see that. No problem.

I agree about the manual but was hoping for a quick answer so I could finish mowing before it rains.
 
Well Pat, you might be right, the alternator could be gone but I'd like to try finding where the mystery wire goes before replacing the unit. An alternator costs $250. Good troubleshooting says clear the simple, inexpensive possibilities before escalating to the more costly ones.
 
WOW that's a big alternator for that tractor!

DEFINITELY has been changed. Not sure what the original was, perhaps 35 or 40 Amp.

Is the regulator mounted on the back of the alternator, or remotely?
 
Oh, buickndeere gets a little rankled at times, a litle rough arond the edges at times, but a not a bad guy deep down.
I just think at times, his coffee is not strong enough. :) , most of the time he means well.
Jim
 
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