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  1. #1
    Join Date
    Sep 2021
    Location
    Melbourne, VIC
    Posts
    5

    Default Stuck Lock Knob Bolt - Tablesaw

    I am restoring an old tablesaw - Woodman TS-222 (MBS-300) with sliding table attachment.

    The locking knob bolt on the main tracking wheel shaft of the sliding table is stuck fast, I think it's a little bent. Pics - https://imgur.com/a/m24EuWH

    The instruction manual is bare, but it seems the bolt is just sitting on top of the internal shaft (which also appears to be stuck tight). The side bolt then locks the shaft in place at the desired height. I need the wheel to rise about 1cm.

    I've tried squirting WD-40 into the threads, as much pressure as I can etc - But it won't budge. Any ideas?

  2. #2
    Join Date
    Oct 2011
    Location
    Norwood-ish, Adelaide
    Age
    59
    Posts
    6,541

    Default

    Welcome to the forum
    A bit of heat may help along with the WD-40.

    If you change your location, you might find a member nearby who could visit (bringing a large hammer or something) to assist in freeing things up. I think I know what you want to do from the picture, but nothing is better than a personal eyeballing.

    Michael

  3. #3
    Join Date
    Sep 2021
    Location
    Melbourne, VIC
    Posts
    5

    Default

    Well, half a result today - The bolt is free, the shaft is not
    Pics - https://imgur.com/a/FzgEN8s

    Managed to use a bigger pair of vice grips and wiggle the bolt back and forth and eventually got it to back out. The thread was just rusted and mangled..

    The shaft though, is still stuck fast. I tried using a hammer and steel rod to bang it out, nothing moved and I can't build a lot of momentum as the frame is in the way of a good swing.
    I then tried using a bit of steel rod and a car jack to try and force the shaft out and it wouldn't budge...the jack started bending

    So somehow the shaft that should be free-sliding is wedged in. Must be some rust, but wow it must be some thing to be that rock solid..

  4. #4
    Join Date
    Sep 2006
    Location
    Mallacoota,VIC,Australia
    Age
    53
    Posts
    1,010

    Default

    Welcome to the forum. I found Sea Foam - Deep Creep works quite well. A bit of heat with some oil may also do the job.
    All The Best steran50 Stewart

    The shortest way to do many things is to do only one thing at once.

  5. #5
    Join Date
    Oct 2001
    Location
    ACT
    Posts
    667

    Default

    I assume its the threaded rod with the plastic knob on it?

    can you get the plastic knob off and dismantle any further? As others have said, use some heat, but...

    get a few cycles of heating and cooling - must allow it to cool right down (do it four or more times), maybe even do it over a few days. you dont want it be glowing, but a few hundred degrees should be enough.

    though unless you can get it apart more it may be difficult to get the heat into the right bits, but no harm in trying.

  6. #6
    Join Date
    Jan 2004
    Location
    Mackay North Qld
    Posts
    6,446

    Default

    Hi Flamingunz,

    Welcome to the MetalWork Forums

    We have a pretty good mob here who are supportive friendly and helpful.

    Please take the time to navigate around the forums to view the varied and interesting subjects.


    To do this, goto the the FORUM box in the top left hand corner of the screen. Click Forum Home and a scroll down page will come up.

    Scroll down the page and the various help pages and sub forums shall be shown.

    Please read the Terms of Use on the very top of the scroll down page - they are our rules.
    To save time here's the link

    https://metalworkforums.com/f90/t197...terms-tou-read

    Many pages also have a sticky at the top.If you post its always a good idea to check the sticky ,if there is one there.


    Again, welcome to our forums.

    Grahame

  7. #7
    Join Date
    Dec 2005
    Location
    South Australia
    Posts
    1,656

    Default

    I am a big fan of Penetrene for such tasks

  8. #8
    Join Date
    May 2013
    Location
    Rockhampton, QLD
    Age
    68
    Posts
    454

    Default

    Welcome to the forum.

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