I was called to tune a new Kawai grand, and there was a complaint about one hammer. It was striking its neighboring string when affected by the una corda (only this one hammer did so). I loosened the offending flange screw, repositioned the flange/hammer slightly, and all worked well (this has often worked well in the past on other pianos). Several weeks later I hear the problem is back. I don't want to repeat the same procedure with the same unsatisfactory results. I am thinking of what should be done: shim the flange, bend the shank, remove and remount the hammer a degree different, reposition the flange again and apply locktite, etc. What will bring about the proper and lasting result? Any proper and lasting ideas? Arlie D Rauch Glendive, MT
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