Author: Ken Shaw ★2017
Date: 2010-11-03 20:42
There are several possibilities:
The lower joint may have shrunk longitudinally, bringing the posts closer together and squeezing the ring key between them.
The mechanism may need oil.
If you took the key off, you may have reversed the two pivot screws. They are not identical.
One or both of the pivot screws may have become worn or bent.
If you have dropped the lower joint, one of the rings may have bent and be binding against the wood chimney it fits around.
You may have screwed the pivot screws in too tight. Try backing off maybe 1/8 turn. If that's the problem, you'll need to fix the offending screw in place with clear fingernail polish. (Never use the permanent or even the non-permanent version of LocTite, which can't be removed.)
The pad may be sticking to the rim.
The bridge key may be binding, or the bit of cork in between the two ends may have deteriorated or become sticky.
Any repair technician can find the problem and correct it immediately, at low or no cost.
Ken Shaw
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The Clarinet BBoard
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