MX-5070v high pitch noise

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  • peakjohn
    Junior Member
    • Jun 2017
    • 6

    #1

    MX-5070v high pitch noise

    I am getting a high pitch squeal only when the customer runs thick paper through the bypass. Standard 20lb runs fine and when I work on it it goes away for awhile then eventually comes back. Any input would be appreciated!!
  • romang
    Technician

    Site Contributor
    50+ Posts
    • Aug 2011
    • 72

    #2
    Re: MX-5070v high pitch noise

    Have had quite a few Phoenix machines make noise like that. Usually its a grounding tab on the delivery unit. In parts guide section 56 item 31 . You can get to it by removing front cover where motion sensor is.

    Comment

    • JR2ALTA
      Service Manager

      Site Contributor
      1,000+ Posts
      • Feb 2010
      • 2028

      #3
      Re: MX-5070v high pitch noise

      The exact issue you're having (thick paper) is caused by felt pads in the primary belt unit. I don't know why the slower speed causes it. The felt pads are updated. It gets easier every time you do it, but you can always order the whole unit if you want. It's in bulletin MFP-TB-1879R

      Comment

      • repn1999
        Trusted Tech

        250+ Posts
        • May 2010
        • 310

        #4
        Re: MX-5070v high pitch noise

        replace the belt unit. there are other mods to that unit as well and its easier to get them all at once then make several calls when the other issues do finally come up. work smarter and not harder.

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        • dsmith46
          Technician

          Site Contributor
          50+ Posts
          • Oct 2016
          • 81

          #5
          Re: MX-5070v high pitch noise

          I have also seen where the Transport drive causes issues like this too. I just had a call today, where I am ordering a new drive. I have replaced this drive on several machines in this series. The high pitched noise is different between the drive and the primary belt unit. The one for the drive is more dual toned, meaning it sounds like two different high pitched sounds at different frequencies.

          Good luck!

          Comment

          • miller01123@gmail.com
            Technician
            • Jun 2019
            • 44

            #6
            Re: MX-5070v high pitch noise

            Clean and powder the felt side seals on the primary transfer belt cleaning unit.

            Comment

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