X758 Battery Cable Came Apart
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Thread: X758 Battery Cable Came Apart

  1. Top | #1

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    X758 Battery Cable Came Apart

    So I've had a sporadic failure to start situation on my x758 since last fall. I posted about it in the thread below thinking that it might be related to the Noco battery tender I hooked up to it just before it started having issues:

    Deere x758 failure to start with Noco battery tender

    Turns out it was related but the issue wasn't with the Noco stuff, it was due to the installation and a failure of Deere's cable. Apparently the negative battery cable began coming apart at the time I removed the connection to remove the prior battery tender pigtail and add the Noco setup. It had the no-start issue various times (maybe 3-5 since Oct) but always resolved itself pretty much right away so I never had a way to dig into it further. This time when I went out to start it on Sunday it did the same thing but then was totally dead after that. Nothing lit up on the dash after the first attempt to start. I checked all the fuses and then started on the battery to check connections. As I was removing the negative cable to clean things and re-tighten the cable just pulled out of the terminal/clamp. Deere uses a clamp that just seems to friction fit the clamp onto the cable strands somehow. The cable pulled right out and I could look inside the clamp and see where it had been pushed into the clamp. I'm thinking maybe they made the cables by heating the cable and pushing it into the soft lead clamp or something. Anyway, I was able to force the cable strands back into the clamp and then pinch it on with a big channel lock pliers. That got me a workaround so it starts again. I will probably get a new terminal/clamp eventually, but if this stays put I might just leave it.

    Sorry for no pics. It was cold out and I just wanted to get the driveway blown out so I didn't take time to document things.

    Anyway, just throwing this out there because it isn't really something that seemed like a common failure vector. I know bad/loose connections are common but you just don't expect a battery cable on a 2+ year old vehicle to fall apart. I did see signs of the issue when I started looking at things because there was bar wire showing between the clamp and the wire sheathing. Something you can probably look for if you want to see if this is affecting your Deere tractor.

    Rob
    Kennyd, North585 and Roger47 like this.
    2016 x758 w/60" HC mower, 54" snowblower, MC519 bagger
    2010 2520 w/61" H130 loader, TA 42" forks, KK 60" Pro tiller, iMatch quick hitch, KK middle buster
    1996 345 - Traded
    Other toys: Stihl BR600 backpack blower; McCulloch chainsaws: 10-10S, 700, 805, 10-10; JD trimmer

    2520:__________________________x758:__________________________Faithful 345:___________________

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  4. Top | #2
    TJR345's Avatar
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    Sounds like the cable never got sodiered into the lug.
    Tom

    2019 X590 with power mulch control and PF bagger
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    Certainly possible. Or, if that's how they are put together, that the soldering process just didn't hold. I certainly haven't done anything to put excess pressure on the cable that would pull it out.

    Rob
    2016 x758 w/60" HC mower, 54" snowblower, MC519 bagger
    2010 2520 w/61" H130 loader, TA 42" forks, KK 60" Pro tiller, iMatch quick hitch, KK middle buster
    1996 345 - Traded
    Other toys: Stihl BR600 backpack blower; McCulloch chainsaws: 10-10S, 700, 805, 10-10; JD trimmer

    2520:__________________________x758:__________________________Faithful 345:___________________

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    Zebrafive's Avatar
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    Maybe a bad run of cables or change to cheaper supplier?
    TJR345 likes this.
    J
    John Deere 2030 w/245SL Loader
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    John Deere 285 50" deck Stolen May 2017
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