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  1. #1
    Platinum Member
    Join Date
    Jun 2004
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    546
    Location
    Western PA
    Tractor
    Mahindra 3510

    Default Broken lower arm link- bad metal?

    I was using a landscape rake a few days ago and looked down to see a broken link.

    I've included a few pictures. It looks like the link was defective, as it broke at the weld and the metal looks bad.

    Anyone else had this or similar problem? I worry that the other parts of the linkage may suffer from the same defect.

    This tractor is new (about a month) and about 30hrs on it, mostly with FEL.

    -JC
    Attached Images Attached Images

  2. #2
    Platinum Member
    Join Date
    Jun 2004
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    546
    Location
    Western PA
    Tractor
    Mahindra 3510

    Default Re: Broken lower arm link- bad metal?

    Here is a closeup of the link.

    The dealer has promised to send me a new part, but have to wait a few days for it.

    -JC
    Attached Images Attached Images

  3. #3
    Elite Member
    Join Date
    Sep 2003
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    4,144
    Location
    New Brunswick, Canada
    Tractor
    Kubota L5030 HSTC, MF 5455

    Default Re: Broken lower arm link- bad metal?

    Looks to be a poor weld, hard to tell in the pic.
    Ken

  4. #4
    Super Star Member
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    Aug 2001
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    11,590
    Location
    Upper Midwest USA
    Tractor
    JD 4300, JD X485 JD 4x2 Gator, JD 425, JD455

    Default Re: Broken lower arm link- bad metal?

    I agree, doesn't look like much of a weld.
    Brings to mind how often I've wondered how chain links are 'welded' together to make chain. Some type of weld is made. This link doesn't look like anything happened other than a little bit at the very edge of the cross-section.

    I wonder if too much tension can be applied by cranking on the turnbuckle (not implying that is what was done, by any means), as that link is in a vulnerable spot for a tension load?

  5. #5
    Super Star Member Egon's Avatar
    Join Date
    Aug 2001
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    17,521
    Location
    Nova Scotia, Canada

    Default Re: Broken lower arm link- bad metal?

    From the rust it would appear the link has been separated for some time. Just a smidgen around the edges was holding. Mayhaps put some stress on the rest of the system in controlled conditions to see if more are awaiting.

    Egon

  6. #6
    Super Member JerryG's Avatar
    Join Date
    Apr 2000
    Posts
    7,186
    Location
    Northwest Arkansas
    Tractor
    MF 1440-4 PowerShuttle

    Default Re: Broken lower arm link- bad metal?

    I does look like a bad weld. If you need it before the dealer gets the new one, replace the link with a screw together chain repair link.

  7. #7

    Default Re: Broken lower arm link- bad metal?

    From the small cross section here, it looks like a unique problem. I will keep a closer eye on mine now, expecially when I use a box blade and put a lot of side pressure on it. It looks like the same chain as on my 2615.

    For a temp fix, if you have a welder. Use a pair of vice grips to close the gap. Grind a gap out at the seem. Weld.

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