<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <html xmlns="http://www.w3.org/TR/REC-html40"> <head> <title>RE: String Replacement Results</title> <meta http-equiv="Content-Type" content="text/html; charset=us-ascii"/> <meta http-equiv="Content-Type" content="text/html; charset=us-ascii"/> <style>  </style> </head> <body lang="EN-US" vlink="#800080" link="#0000ff"> <div class="Section1"> <div>The dummy pin and pre-coiling  is the way to go, so now is the time to start practicing.   The RPT test's preferred method is pre-coiling, I believe.   </div> <div> </div> <div>David Ilvedson, RPT<br/>Pacifica, CA 94044<br/></div> <div style="padding-right: 5px; padding-left: 5px; padding-bottom: 5px; border-left: #000000 3px solid; padding-top: 5px"> <hr/>Original message<br/>From: "Porritt, David" <dporritt@mail.smu.edu> </dporritt@mail.smu.edu><br/>To: "Pianotech List" <pianotech@ptg.org> </pianotech@ptg.org><br/>Received: 7/24/2008 2:25:29 PM<br/>Subject: RE: String Replacement Results<br/><br/> <div class="Section1"> <p class="MsoNormal" align="left"><span style="color: #215868">Matthew:</span></p> <p class="MsoNormal"><span style="color: #215868"> </span></p> <p class="MsoNormal"><span style="color: #215868">My only observations would be that removing the action would make the job much easier and safer for the dampers.  Also you can just turn the pins out 1 turn if you make the coils on a dummy pin and then put the pre-made coil on the tuning pin.  That saves a lot of turning of the tuning pin which will make it looser.  Of course in my situation broken strings are quite common so I do everything I can to minimize that kind of wear since there is a great likelihood that the new string will also break.  </span></p> <p class="MsoNormal"><span style="color: #215868"> </span></p> <p class="MsoNormal"><span style="color: #215868">dave</span></p> <p class="MsoNormal"><span style="color: #215868"> </span></p> <p class="MsoNormal"><span style="font-size: 10.5pt; color: #215868; font-family: Consolas"> </span></p> <p class="MsoNormal"><span style="font-size: 10.5pt; color: #215868; font-family: Consolas">David M. Porritt, RPT</span></p> <p class="MsoNormal"><span style="font-size: 10.5pt; color: #215868; font-family: Consolas"><a href="mailto:dporritt@smu.edu"><span style="color: blue">dporritt@smu.edu</span></a></span></p> <p class="MsoNormal"><span style="color: #215868"> </span></p> <div style="border-right: medium none; padding-right: 0in; border-top: #b5c4df 1pt solid; padding-left: 0in; padding-bottom: 0in; border-left: medium none; padding-top: 3pt; border-bottom: medium none"> <p class="MsoNormal"><b><span style="font-size: 10pt; font-family: ">From:</span></b><span style="font-size: 10pt; font-family: "> pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] <b>On Behalf Of </b>Matthew Todd<br/><b>Sent:</b> Thursday, July 24, 2008 4:13 PM<br/><b>To:</b> pianotech@ptg.org<br/><b>Subject:</b> String Replacement Results</span></p> </div> <p class="MsoNormal"> </p> <div> <p class="MsoNormal">Hi List,</p> </div> <div> <p class="MsoNormal"> </p> </div> <div> <p class="MsoNormal">I just finished my string replacement exercise and I would like to share with you my step by step procedure.  Any comments, suggestions, do's and don't do agains will be greatly appreciated.</p> </div> <div> <p class="MsoNormal"> </p> </div> <div> <p class="MsoNormal">The piano is a Yamaha P-2, and I chose F-57 for replacement.  The reason being it was the first string above the overstrung area, and I wasn't about to delve in that area yet.</p> </div> <div> <p class="MsoNormal"> </p> </div> <div> <p class="MsoNormal">I used my wire cutters and nipped the string(s) as close to the coil as possible.  I then used my small screwdriver to pry the coil off the pin, being careful not to scratch the finish of the plate.  I mic'd the string I took off, and it was size 15 wire.  I mic'd the size 15 to make sure it was a match, and it was dead on.</p> </div> <div> <p class="MsoNormal"> </p> </div> <div> <p class="MsoNormal">I got my tape measure and measured from the hitch pin to four fingers past the top pin (it was about 20'').  Then I took my size 15 reel of wire and measured out 20'', made my bend and doubled the string.  Then I cut.</p> </div> <div> <p class="MsoNormal"> </p> </div> <div> <p class="MsoNormal">I then took my tuning hammer, and backed the two pins out of the hole approximately four turns each, making sure not to go too fast.  Then I made sure the hole of each pin was lined up and down.</p> </div> <div> <p class="MsoNormal"> </p> </div> <div> <p class="MsoNormal">I fed the string from the top.  I had to manuever it several times before I could get a hold of it from the bottom with my stringing hook.  I ran it to the hitch pin and seated it around the pin, and then with my vise grips, clamped the pin.  Then I popped the string on the bridge pins.</p> </div> <div> <p class="MsoNormal"> </p> </div> <div> <p class="MsoNormal">Back at the top, I started with the middle pin and fed the wire through the hole  I let the wire run out the other side almost 1/4''.  As I began turning it, it did pop out once, so I had to straighten the wire with my needle nose, and do it again.  After the second coil, I used my pliers and squeezed the coils.  I was very careful not to let any wires over lap, and to make sure my first coil was snug against the string that was out the other side.  After the third coil, I did the same procedure with the top pin.</p> </div> <div> <p class="MsoNormal"> </p> </div> <div> <p class="MsoNormal">I had two errors thus far.  First, when I went down below to make sure the string was still around the hitch pin and bridge pin, I discovered the string was caught up on the bridge pin on the adjacent note!  So I had to back the pin out and fix it.</p> </div> <div> <p class="MsoNormal"> </p> </div> <div> <p class="MsoNormal">The second error was as I was cranking up the top pin, I looked and found the string was caught in some dampers on the left and was actually pulling them over!  (Some of you may be cringing as I say that...I sure did!)  So, I backed out that pin, and fixed that situation.</p> </div> <div> <p class="MsoNormal"> </p> </div> <div> <p class="MsoNormal">After that, I was pretty much home free.  I was able to make nice, neat coils.  The top pin ended up with 3 1/2 coils, while the middle pin had 3.  In fact, the top pin is just a little bit higher than the rest of the pins now.  It is not bad, but it is sticking out just a little farther.</p> </div> <div> <p class="MsoNormal"> </p> </div> <div> <p class="MsoNormal">I did this with the action in the piano.  Figured I was up to more of a challenge, and it actually wasn't that bad!  The only thing I did not do was really seat the string around the hitch pin.  I don't have a small brass rod with a rounded end, and I didn't want to do it with my screwdriver.</p> </div> <div> <p class="MsoNormal"> </p> </div> <div> <p class="MsoNormal">Since the action was still in place, I wasn't able to do a good job of stretching the string with my stretcher either.</p> </div> <div> <p class="MsoNormal"> </p> </div> <div> <p class="MsoNormal">I tuned the strings about one note sharp and that is where I left it as I write this.</p> </div> <div> <p class="MsoNormal"> </p> </div> <div> <p class="MsoNormal">I think I remembered everything.  Like I said, if any of you have any comments or suggestions, I will take them all.</p> </div> <div> <p class="MsoNormal"> </p> </div> <div> <p class="MsoNormal"> </p> </div> <div> <p class="MsoNormal">Thank you!</p> </div> <div> <p class="MsoNormal">Matthew</p> </div> <div> <p class="MsoNormal"> </p> </div> <div> <p class="MsoNormal"> </p> </div> </div> </div> </div> </body> </html>