L3940 battery came loose and now no power at all
- Thread starter javid
- Start date
Mistakes can be made. But the fact that the starter turns over when I bridge solenoid with main lug tells me I think I am competently connected to battery. I am certainly not an electrician, but I have terminated plenty of wires in my life...maybe I am not understanding your thoughts
It says the circuit between the battery and the fuse block is open. Should be easy to rundown using a test lamp.
Dan
Tha
Dan
That is why I asked the starter question and I agree. Now find the feed from that terminal to the fuse block and trace power on it.
Dan
Thanks for help. I do plan to trace that terminal feed back, but it is currently raining (I have no shop) and it looks like the feed goes into the main wiring bundle behind the dash.
What do you think about bringing 12v directly from battery to slow blow fuse and see what works and what doesn't. Wasn't planning on trying to start tractor that way, just see if I get dash lights and power in other places. I would put 5 or 10a fuse on that jumper. Not sure what could go wrong if I tried that
Heres a snap from the WSM. Fuse block feed appears to be one solid wire from the starter lug. Running a jumper might be revealing. I would also make sure the connectjons on the starter lug are all "clean, bright, and tight".
Dan
I think I found the proper wiring diagram. It looks like the 12v to slow blow fuse comes
Thanks so much for that, I just found that diagram myself and puzzling over it. So diagram shows 12v+ comes from starter lug > slow-blow fuse block through the "main" fuse and then gets distributed throughout the slow blow fuse block that way? So when I follow the + wire from battery to starter lug, there are no wires distributed along the way nor is there another wire at the starter lug except the one directly from the battery.
I just tried the jumper. I put a 5a fuse in jumper between battery + and slow blow fuse block common. I took out glow plug slow blow fuse so as not to overwhelm the 5a fuse in jumper. I turned the key and everything lit up on the dash as normal. I am not sure what I am risking trying to start, but would need beefier jumper if I tried that. Not sure what that would tell me exactly either. Probably best best is to trace back the 12v+ input into the main slow blow fuse? Appreciate all the help
Thsts my reading. Yoy should have 12V on the fuse block end of that wire and you dont. When you jumper it everything lights up.
Fix that 12V feed. I am going to beat that equine cadaver one more time. Have you disconnected and cleaned those starter connections?
Dan
North Idaho Wolfman
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How many wires do you have coming off of the positive terminal?
Bet 1
You replaced the battery end with a generic end didn't you?
The factory end has a second connection.
Bet 1
You replaced the battery end with a generic end didn't you?
The factory end has a second connection.
Bingo. Thats what I was looking for but that pic is pretty sketchy and it does not show up in any diagram I have seen. Where does the second wire come from - go to?
Dan
Last edited:
North Idaho Wolfman
Moderator
Staff member
Lifetime Member
Equipment
L3450DT-GST, Woods FEL, B7100 HSD, FEL, 60" SB, 743 Bobcat with V2203, and more
The second wire goes from the B+ to the main slow Blow fuse panel, the one he has no B+ at.
This is a L3901. Hard to imagine the OP cut the OEM clamp off and missed something so obvious. Wonder where that wire and plug are....
Dan
