I bought one yesterday and the bag that contained the wrench and the manual
also contained a thick plastic washer about the same diameter as a dime.
Does anyone know what it is for? The manual doesn't mention it and I can't
find it on the parts diagram.
I'd guess that it is a backup replacement for a commonly worn part. Maybe
between the orbital disk and the shaft turning it or something like that.
I'll assume it has a hole in the centre of it?
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