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Bill,

No I have not sprayed anything into that mechanism prior to becoming
stuck. Mind you, it will move, but with significant force.
My only theory is that some debris / hardened lubrication / or whatever
has come off by my initial rotation. Or perhaps a temperature / moisture
effect from the changes between my home and its original home.

I'll try lifting and twisting without any chem stuff.

Eric

Op 21-1-2012 20:02, Bill Morris schreef:
>
> Yes, Eric, the outer disc should rotate freely on the central bronze
> shaft, within the limits set by the stop mechanism, whose operation
> will become clear once you have demounted the disc...
>
> I have some difficulty in visualising how the disc might have become
> stuck. Did you perhaps spray something into the mechanism that might
> have reacted with the plastic and caused it to swell? I would be
> inclined just to twist and lift as I am uncertain about the effect of
> WD40 on plastic.
>
> Bill Morris
> Pukenui
> New Zealand
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