Damned if I know. I've taken them apart to replace parts, and they're a Rubic Cube of tiny curves that don't fit, much less tigthen. If you can get a nail into one of the holes, it should tighten up by ratcheting but that's the theory.
Well, it's not what I wanted to hear, but anything is worth a try at this point. How do you like your 320? We bought ours new (a 2000). How long have you had yours?
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