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How should I go about loosening knurled knob on centrifuge that's been overtightened?

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  • _Paul_
    replied
    Have you got room for a strap wrench perhaps using leather for the strap to stop marring? or if you can find one to suit what about an oil filter strap wrench,



    Paul

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  • lynnl
    replied
    I assume it's intended to be hand tightened/loosened, so shouldn't require much clamping force. Try wrapping with a strip of thick rubber or leather then grip onto that.
    Last edited by lynnl; 10-15-2016, 03:19 PM.

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  • How should I go about loosening knurled knob on centrifuge that's been overtightened?

    It's about 2" in diameter and down in the chamber.



    Unlike the picture, the rotor has a flat top right under the knob, so I can't get to it with soft-jaw pliers. Anything else I've got will scar the knurls. Any suggestions?
    Last edited by winchman; 10-15-2016, 09:18 AM.
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