Hi,Avery! To prevent pedal pivoting pin from "walking-out",attach little plastic wire holder.Yamaha does that on their grand traps and I submitted that tip and it was published in the last,March 2005 Journal.It woyks! Regarding previous problems with sqeaking una-corda on Steinway B and a possibility of it coming out of shifting spring.. 2 things I would do: check-re-tighten all four screws holding that shifting spring,even installing key balance rail punchings on all four of them wouldn't be a bad idea.Second: all those shifting springs after leaving factories and rebuilding-refinishing shops need to be taken out and buffed in the shop on 3M LIGHT DEBURRING WHEEL,available from industrial suppliers and some abrasive and woodworking supply catalogs.The price of about $50 US worth every penny..Also, all trap springs and pins need that treatment.It's magical,after that buffing all those parts don't need any additional lubrication.As far as we all know,Grease-Lubrication in trap system invites more dust and causes even more sqeaks,right? Area #3 to check:re-tighten all KEYBED SCREWS to the RIM underneath of the piano to make sure those sqeaks are not coming from that area.Had done it!!Now it's a routine on a first call.. Good Luck! See you in Kansas City! Isaac . > [Original Message] > From: Avery Todd <avery1@houston.rr.com> > To: pianotech <pianotech@ptg.org> > Date: 3/13/05 10:22:03 AM > Subject: Another 'B' problem > > List, > > While we're talking about B's, any ideas on how to stop the hinge pin that > connects the soft pedal connections under the keybed from working out? > Sorry, my Merle Mason book is at the school and I'm not and I can't think > what to call everything. The pin that connects the wood piece that goes > between the two blocks that are screwed to the keybed and moves the action > when the shift pedal is depressed. > > I know I could put some kind of "dam" there to prevent the pin from working > out but is there a more "authentic" way, short of plugging the hole and > drilling a new one? > > Thanks, > > Avery Todd > > P.S. Man, you'd think that after 30 yrs............ > > > _______________________________________________ > pianotech list info: https://www.moypiano.com/resources/#archives
This PTG archive page provided courtesy of Moy Piano Service, LLC