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Re: C# key pad not rising

Author: matt_lin18
Date: 2017-05-29 21:29

It could be still a bent rod still that's causing the low C# pad not to rise. In that case, I would take it back to your repairer so straighten it back out. Even a slight visually imperceptible bend can cause the key not to rise because of how tight the key tolerances are.

I had this similar issue with an oboe I owned a few years ago. I'm not sure if it was a bent rod but adding tension to the flat spring on the C# key fixed my issue and it never came back. I would only advise the steps below only if you are completely comfortable with doing it or have past experience of basic instrument repair. Proceed at your risk!

Referencing to this picture for the following steps: http://1.bp.blogspot.com/-upunWI75jl8/U4aJXxOmfXI/AAAAAAAABDo/WDew1ztHjmY/s1600/Full.jpg

Take a screwdriver and remove the "Bb linkage arm" by loosening the post. The screw is located on the bottom of the arm, closest to the bell. Removing the Bb linkage will allow you to access to the post that the C# key is on.

Take your screwdriver again and unscrew the post on the low C# key. Remove the key. You should see a flat spring that is curved downwards. Carefully bend the spring back a little bit so it has more tension.

If you have key oil, apply some to the rod and posts that the C# key sits on. Clean the rod off first before applying it. You only need maybe half a drop of key oil. And while you're at it, gently clean the pad of the C# just in case a sticky key is contributing to the issue.

Reassemble the instrument again, put the C# key back in it's place and screw in the rod. Then the Bb linkage arm and screw the post back in. If it still doesn't work, it is probably bent.

Post Edited (2017-05-29 21:32)

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