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  1. #1
    New Member U2DEERE's Avatar
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    Mar 2006
    Posts
    10
    Tractor
    2520

    Default 4200 Collar Shift Differential Lock

    Has anyone had any experience with the differential lock failing. The model is a 4200 collar shift. Is it a simple fix or a larger problem?

  2. #2
    Silver Member
    Join Date
    Feb 2006
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    178

    Default Re: 4200 Collar Shift Differential Lock

    We haven't had any problems with the Diff Lock, but have had some problems with the Collar Shifts (it was discontiued a few years ago)-is the linkage hooked up? Has the "feel" of the pedal changed? Did it work properly before? When are you engaging it? Do the Brakes and other Controls work properly?

  3. #3
    New Member U2DEERE's Avatar
    Join Date
    Mar 2006
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    10
    Tractor
    2520

    Default Re: 4200 Collar Shift Differential Lock

    I have had no issues with the collar shift when following the manual when shifting (waiting the five seconds between shifts). The tractor is a one owner and has less then 200 hours on it.

    The feel of the differential lock pedal is different. I was using it two weeks ago plowing snow and noticed that when I finished the driveway that it was no longer working. All other things are working proper. There is no linkage just the pedal that attaches directly to the transmission case.

    I am hoping for something like a shear pin or something easy.

  4. #4
    Silver Member
    Join Date
    Feb 2006
    Posts
    178

    Default Re: 4200 Collar Shift Differential Lock

    Probably not good news-maybe that linkage inside has become disconnected or worse-I would suggest you call your Dealer and let him have a look-sorry-

  5. #5
    Bronze Member
    Join Date
    Jan 2006
    Posts
    80
    Location
    Southern NH, USA
    Tractor
    JD 3520

    Default Re: 4200 Collar Shift Differential Lock

    I'd make that call sooner rather than later because if something inside the cases has come loose or broken, you don't want it getting caught up in the other gears and causing one very expensive repair job!

    BILL

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