---------------------- multipart/alternative attachment Hi Barbara Well, there are as many mystery causes of center pin problems as there are stars but as for Renner I've found them to be quite reliable. However on one set about ten years ago they seized so I pinned them. They seized again so Isized them with alcohol & water & haven't seen em since. I've had center pinning problems on every part out there. It's still a hand fit part & when it's done with skill every thing is dandy & when there's a glitch in the cloth, personnel, felt maker & who knows what there can be problems. ie.Yamaha had or has plated pins as do many Asian pianos. Sometimes the plating comes off and the parts just freeze. This was common at our dealership in the years surrounding 1976 thru about 1980 or so, Yamaha was ALWAYS Johnny on the spot to warranty this problem. Sometimes the arthritis got all the way to the under lever parts. Hey Yamaha even warranted and replaced a gh-1 for me as I had finally diagnosed the soundboard /bearing problems on the very LAST Day of its ten year warrantee!!!!!!! Tuning instability you know. As my Dad says "ya pay your money & you take your chances" Dale Thanks, Dave. Well...actually, they're Renner parts--for a grand. I would like to donate the work, I just don't want to get called back--if you know what I mean. Yes, as you can see by the picture, I am short. I can, however, stretch up to an old upright if I want to. It isn't always easy to peer into nine-foot grand pianos while regulating either. ;-) Barbara Richmond, RPT PS And I know I'm knock kneed, too. My sister (God Bless her soul), was bow-legged. My father said when we stood together we spelled the word OH (or HO). ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/f3/73/6f/a4/attachment.htm ---------------------- multipart/alternative attachment--
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