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I have an old LEGO winch that looks like #73037

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It has been "restrung" but it is very stiff and it looks like it has some of the old string stuck between the rotating and non-rotating parts. It also feels a bit gritty so there might be dirt stuck in there.

It looks like the top on each side might come off and if so I would be able to remove the stuck string and clean it.

Does anyone have any advice about taking it apart without damaging it?

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1 Answer

You just can't. This part is fused together with sound-waves so it doesn't separate anymore.

Source and more info: fusing Lego together

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+1 for the sound wave fusion info –  pcantin Apr 22 '13 at 1:36
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