[pianotech] flanges on the move

Shawn Brock shawnbrock at fuse.net
Thu Dec 11 22:47:39 PST 2008


List,

call me an amateur but this is one problem I have yet to come up with a fix for.  I have a client who has an early/mid 80s Schimmel grand in superb condition.  It was not played much at all before he bought it about 3 years ago.  He is quite the player so I see him regularly for tuning and the normal repairs.  The problem is this, hammer flanges that won't stay put!  On 3 different occasions he has called me to come out because when he uses the shift and sustain together he will have 1 hammer striking 2 unisons.  I always check for these kind of things during regular appointments and have not found any spacing issues.  Sure enough though he will have something out of line when he calls and I'll go fix it and he will be fine for about 3 months and then...  He wanted a tuning last week and that time I found yet another hammer flange that was to far to the right.  I took care of that and made sure no more were in the same condition.  I really took my time inspecting things!  So this morning I get an email saying things were fine until yesterday when he found yet a different hammer striking 2 unisons.  This problem is only occurring in the tenor and I have a few potential fixes but wanted to see what some of you thought.  Keep in mind he knows this hammer was not striking 2 unisons before yesterday, he knows this because he has been working on the same peace of music for the last 4 days.  I have checked the screws and they all seem to be tight.  Could it be that someone before used one of those flange spacing tools?  I liked those for a while but now wonder if they do more harm than good.  It seems like they put to much strain on the flange and could cause the screw hole to become misshapen.  So what do you think?  I hope that you have read this entire message before responding.  

Regards,
Shawn Brock, RPT
513-316-0563
www.shawnbrock.com
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