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621e won’t shift

Discussion in 'Scrapers' started by kcdurtworks, Jun 7, 2021.

  1. kcdurtworks

    kcdurtworks Member

    Joined:
    Mar 5, 2019
    Messages:
    24
    Location:
    Oklahoma
    Got a 621e 6ab806 with a reman transmission 0r4025 that will not shift until you put it in 6th gear. Both solenoids are working when we put power to them. On the transmission control when in neutral the 3rd light comes on but not the 5th. All lights work when I push the transmission hold like it should. Any suggestions would be great. Also replaced both positioning switch’s being we have another right here beside it.
     
  2. Mbar

    Mbar Well-Known Member

    Joined:
    Dec 15, 2018
    Messages:
    151
    Location:
    North Carolina
    If I remember rite. Pull the shifter control at your right hand un plug and put ground to the pins and it will make the lights come on for each gear. Contacts wear out on the shifter. Also there is a plug on the side of the trans where you can put a quarter in extension in and shift the trans manually
     
  3. kcdurtworks

    kcdurtworks Member

    Joined:
    Mar 5, 2019
    Messages:
    24
    Location:
    Oklahoma
    We found it. Someone pulled the engine before and just cut the wiring harnesses in half. Then butt spliced them back together……
     
    Tarhe Driver and Tinkerer like this.
  4. Welder Dave

    Welder Dave Senior Member

    Joined:
    Oct 12, 2014
    Messages:
    6,325
    Location:
    Canada
    Sounds kind of redneck on something like a scraper.
     
    Tarhe Driver likes this.
  5. Mbar

    Mbar Well-Known Member

    Joined:
    Dec 15, 2018
    Messages:
    151
    Location:
    North Carolina
    Sounds redneck on anything to me.
     
    Tarhe Driver likes this.
  6. Welder Dave

    Welder Dave Senior Member

    Joined:
    Oct 12, 2014
    Messages:
    6,325
    Location:
    Canada
    I could see it on an old beater car or a farmer fix on an old tractor but not so much on an expensive piece of equipment like a scraper.