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  1. #1
    Join Date
    Nov 2003
    Location
    Adelaide
    Posts
    5

    Default Removing seized feed roller on WIA Weldmatic 150S?

    Hello to all. I have acquired a WIA Weldmatic 150S MIG welder. It is in good servicable condition, apart from one problem. It is fitted with a 0.6mm feed roller that I want to change out for a 0.9mm roller but I just can't get the existing 0.6mm roller off its spindle. I suspect that over time it has seized onto the spindle. Has anyone had such a problem? I was thinking I could use a small gear puller and a tapping hammer to try and release it from its spindle. Any thoughts or suggestions would be appreciated. Cheers!

  2. #2
    Join Date
    Oct 2011
    Location
    Adelaide
    Age
    55
    Posts
    3,148

    Default

    I'd probably try a bearing or gear puller first too. I think the wheel is plastic? I might try some gentle heat but you'd have to be careful you did not damage anything.

    Michael

  3. #3
    Join Date
    Sep 2010
    Location
    Lebrina
    Posts
    1,099

    Default

    If they are anything like the wire feed on the WIA 205, then they are a cantankerous little beast!
    We had one at a previous employer and the woodruff key in the shaft used to move and act like a cam lock. I would start by a good application of penetrating oil of your choice and then a small gear puller if it will fit. Failing that, a pry bar of large screw driver to apply leverage and a few smart raps with a hammer to hopefully break things loose. If your key is cam locking as I described, you will need to persevere and work things back and forwards until you get the roller off.
    Be careful using heat. Lots of bad things could easily happen.

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