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615 scraper bowl wont lift

Discussion in 'Scrapers' started by Tyler VanderSyde, Oct 14, 2020.

  1. Tyler VanderSyde

    Tyler VanderSyde New Member

    Joined:
    Oct 14, 2020
    Messages:
    4
    Location:
    Michigan
    I have 2 46z serial number machines that once loaded wont lift their bowls. We have replaced cables to the bowl control levers, new hydrualic pumps, and rebuilt the valve spools. Cables are within adjustment and we are getting full throw on the valves. At a loss so any ideas would be great. Thanks in advance!
     
  2. Vetech63

    Vetech63 Senior Member

    Joined:
    Aug 10, 2016
    Messages:
    2,645
    Location:
    Oklahoma
    Have you checked the bowl lift cylinders? Those packings are usually the culprit, either one cylinder or both.
     
  3. Tyler VanderSyde

    Tyler VanderSyde New Member

    Joined:
    Oct 14, 2020
    Messages:
    4
    Location:
    Michigan
    We did replace one lift cylinder too, and the other is weeping. Actually both machines have a cylinder weeping, so Ill dive into it this morning. Appreciate it.
     
  4. Bls repair

    Bls repair Senior Member

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    Occupation:
    Equipment operator,mechanic
    Location:
    S E Pa
    Had it happen to me on a 627 . A piece of o ring was stuck it pressure relief..
     
  5. Tyler VanderSyde

    Tyler VanderSyde New Member

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    Location:
    Michigan
    Off of the lift cylinder your saying?
     
  6. Nige

    Nige Senior Member

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    Try raising the scraper bowl for an extended period of time when the machine fluids are cold - say a couple of minutes.
    Carefully touch the bowl cylinder barrels. Is one of them warm around the location where the piston ought to be, or maybe both.?
    If that's the case you've found your culprit - leaking cylinder piston seals.
     
    DMiller likes this.
  7. Tyler VanderSyde

    Tyler VanderSyde New Member

    Joined:
    Oct 14, 2020
    Messages:
    4
    Location:
    Michigan
    Got it nipped, the new pump on one of them wasnt working. Took care of one and pressure relief on the other. Thanks guys.
     
    Nige and DMiller like this.