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New to Forum - Just picked up a Yanmar VIO27-2

Discussion in 'Compact Excavators' started by jjaphipps22, Mar 6, 2020.

  1. jjaphipps22

    jjaphipps22 Member

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    Location:
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    Hi, I just picked up a 2006 Yanmar VIO27-2 and this is my first mini ex and was wondering if anyone has any info they can share about them. Mostly how do they compare to other brands (I looked at Kubota and Cat) and little quirks they know about. Right now I am having a problem with the front blade drifting/falling and the track motors appearing to be weak. I pulled the hydraulic filter and found some remnant of oring material, so I have been lead to believe I need to replace orings in the swivel joint and I currently have those on order. Any other ideas?
     

    Attached Files:

  2. John Canfield

    John Canfield Senior Member

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    Occupation:
    Ranching
    Location:
    Texas
    Can't help you with your problem but Yanmar has a good reputation, if I had a local Yanmar dealer I would have strongly considered them when shopping for my mini-ex.
     
  3. uffex

    uffex Senior Member

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    Good day JJ
    The common component to that issue will be the central joint suggest you check it out with a pressure gauge.
    Kind regards
    Uffex Central joint.png
     
  4. jjaphipps22

    jjaphipps22 Member

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    I have the swivel joint oring and seal kit on order as I found the pieces of oring in the hydraulic filter, once I replace I’ll let you know if that fixes it. Anyone own one of these machines completed this before? Does anyone have the service manual?
     
  5. uffex

    uffex Senior Member

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    Good day JJ
    Try appealing to "ToolKing" he has a lot of manuals
    KR
    Uffex
     
  6. jjaphipps22

    jjaphipps22 Member

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    Got the manual online and all signs point to swivel joint, will follow up once I replace orings and seals.
     
  7. jjaphipps22

    jjaphipps22 Member

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    Location:
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    Swivel joint oring and seal kit fixed, blade drift with little to no pressure, drive motor weakness issues, and just in general the machine operates much smoother. For anyone who does this in the future... you will receive 7 orings of two different sizes these get put together in a groove to make a single oring seal in the large grooves of the swivel joint, I think this is a design change from original. The attached photo is the inside of the swivel joint after removal, it was in really bad shape.
     

    Attached Files:

  8. jjaphipps22

    jjaphipps22 Member

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    Location:
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    Got her complete and all painted up. Everything on it works now!
     

    Attached Files:

    Billrog and John Canfield like this.
  9. uffex

    uffex Senior Member

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    Excellent job well done
     
  10. Coastal

    Coastal Senior Member

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    Location:
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    Wow what a mess in there! My blade has started drifting like crazy...wonder if that's my issue too.