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Hitachi ex120-2 adjusters

Discussion in 'Excavators' started by metro, Apr 20, 2010.

  1. metro

    metro Member

    Joined:
    Apr 19, 2010
    Messages:
    5
    Location:
    australia
    Does anyone know how to pull apart the idler wheel adjuster assembly on a Hitachi EX 120-2 so we can replace the seals? We have the assembly out of the machine but cannot seem to move/undo the rod nut. Is the assembly under tension from the coil spring?
    I look forward to any helpful response.
     
  2. willie59

    willie59 Super Moderator

    Joined:
    Dec 21, 2008
    Messages:
    11,488
    Occupation:
    Service Manager
    Location:
    Knoxville TN

    Whoa nelly! Rod nut? On the track adjuster? If your talking about a big nut on the very back of the removed adjuster assembly...do not take that nut loose! Yes that assembly is loaded by a very big stiff spring. You should be able to simple pull the chrome adjuster rod out of the housing. You should find a u-cup seal on the end of the chrome rod when you pull it out.
     
  3. cps

    cps Senior Member

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    Jul 13, 2008
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    Occupation:
    plant mechanic
    Location:
    Ireland
    :iagreeYea what atco said, only he took the time to write it:D
     
  4. metro

    metro Member

    Joined:
    Apr 19, 2010
    Messages:
    5
    Location:
    australia
    Yeah, thought that would be the case - have since removed the rod and replaced the seals - all good.
    Thanks for your valuable input.