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Deere 690C bucket bushing/pin sizes?

Discussion in 'Excavators' started by gravinus, Sep 13, 2017.

  1. gravinus

    gravinus Member

    Joined:
    May 23, 2012
    Messages:
    16
    Location:
    Minnesota
    Hello Everyone,

    My old 690c has one bad pin. It is the dipper pin, it looks like the sleeve in the boom broke free and caused all kinds havoc. I'm having this line bored and welding in a solid shaft with a replaceable sleeve where it will contact the dipper link arm bushings.

    The problem is one of the dipper link arms has a bushing that has been slipping (item #4 on the attached image). So I can either bore this out and go with a larger bushing or it will have to be welded up and then re-bored. Since I'm replacing the dipper pin in the stick, I can make the wear sleeve any diameter that I want.

    My question, does anyone know if these pins/bushings are standard or metric? If so, would anyone know the factory OD/ID of the dipper bushing (item #4)? I can't seem to find this info anywhere. It looks like the ID is around 63mm or 2.5", but mine are worn, so I cant say for sure.

    Any help is appreciated!!
    Thanks!
    Ben
     

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