• Hammer!

    In seriousness, loosen the main bolt, wack it with a hammer to “pop” the bottom conical washer out of the expander, then pull out the top conical washer.

    Sometime just popping the lower conical washer is enough but worst case, both need removing.

  • Ok that makes me feel loads better because that's exactly what I did. The top conical washer was not budging at all.

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