Ken, I did a couple dozen Schwander flange hammer spring cords the other day (same process). I put a drill bit (slightly smaller than hole) in a drill press chuck-backwards. Then, I just pushed them out. I also do this when replacing damper guide rail bushings. Make sure you have something underneath the piece to support it so it doesn't break under the pressure. I put a piece of wood underneath the spot where the bit came down with a hole in it a little larger than the bit, etc. This supported the piece enough. This makes it very fast. Hope this helps. Lance Lafargue, RPT New Orleans Chapter Covington, LA. lafargue@iamerica.net ---------- > From: DHENNESS@aol.com > To: pianotech@ptg.org > Subject: Damper Spring Replacement > Date: Tuesday, June 30, 1998 12:29 PM > > I have recently started replacing damper springs as a matter of course when I > replace dampers on old uprights. I am doing this because I have had > unacceptable results in the past with new dampers operated by 60- to 80-year- > old springs. I have tried replacing the springs only, and replacing the > entire flange assembly. In both cases the job cost way more than I thought it > should (about 5 1/2 hrs for springs only, roughly same $ in parts & labor for > flanges). The time problem in replacing the springs was in getting the old > cord out. I tried pushing it out with center pin pliers and drilling it out, > but nothing seemed to work well. I hope there are some tricks of the trade > out there that I am unaware of. > > Thanks, > Ken Zahringer, RPT > Columbia, MO
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