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580K stuck in 1st gear

Discussion in 'Tractor/Loader/Backhoes' started by whatwas, Jun 14, 2019.

  1. whatwas

    whatwas Well-Known Member

    Joined:
    Apr 12, 2011
    Messages:
    59
    Location:
    ontario canada
    My 580K (4WD phase 3 shifter on side console) has 7500 hrs and has always needed a firm hand to engage 1st and 2nd gear but has always worked. It now is in first and the shifter moves freely (too freely) between 1st and 2nd but stays in first. If you shift to 3rd or 4th than the trans locks up, seems to be engaged in two gears at once. I'm thinking the trans shifter fork/internal linkage has broke or slipped out of position. I need help to inspect or confirm whats not right.
     
  2. Coy Lancaster

    Coy Lancaster Senior Member

    Joined:
    Dec 19, 2014
    Messages:
    738
    Occupation:
    service tech
    Location:
    Arkansas
    Sounds like you have a broken shifter fork. You’ll have to remove tranny and pull front cover to check it out.
     
  3. whatwas

    whatwas Well-Known Member

    Joined:
    Apr 12, 2011
    Messages:
    59
    Location:
    ontario canada
    Thanks for the reply Coy.
    Is there somewhere online where I can get access a service manual or buy one. Looking at the manual that I got with the tractor, its for a unit with the shifter on the floor.
     
  4. Tinkerer

    Tinkerer Senior Member

    Joined:
    May 21, 2009
    Messages:
    3,503
    Location:
    On A Riverbank in IL. USA
  5. alrman

    alrman Senior Member

    Joined:
    Jun 20, 2009
    Messages:
    2,382
    Occupation:
    Diesel Fitter;Small Business Owner;Cleaner
    Location:
    QLD Australia
    @whatwas - I would be taking a close look at the selector control operation, under the machine, while having someone move the gearshift - before you just pull it apart.

    MinnPar list a free service manual for the SK - HERE
     
    Last edited: Jun 16, 2019
    kith likes this.
  6. mitch504

    mitch504 Senior Member

    Joined:
    Feb 27, 2010
    Messages:
    4,046
    Location:
    Andrews SC
    I would pull the rods off the shift linkage on the side of the transaxle and see what it felt like with a pair of channellocks, too. worn sk shifters will hang up