[pianotech] stuck keys after one hour of playing

[Joe And Penny Goss]

hi John,
I thought you might be doing a lap dance with the action as some one has mentioned.
I'm too awkward to try that method.
Joe Goss RPT
Mother Goose Tools
imatunr at srvinet.com
www.mothergoosetools.com
  ----- Original Message ----- 
  From: John Ross 
  To: pianotech at ptg.org 
  Sent: Thursday, April 02, 2009 8:56 AM
  Subject: Re: [pianotech] stuck keys after one hour of playing


  No.
  I was assuming neither would the method, I was referring to, of raising the hammers, and watching them fall, after 75 degrees.
  Or am I missing something. I know I quite frequently do. :-)
  John Ross
    ----- Original Message ----- 
    From: Joe And Penny Goss 
    To: pianotech at ptg.org 
    Sent: Thursday, April 02, 2009 11:16 AM
    Subject: Re: [pianotech] stuck keys after one hour of playing


    Hi John,
    The swing test will only identify the hammer centers???
    Will it also catch the jack and wippen center?
    Joe Goss RPT
    Mother Goose Tools
    imatunr at srvinet.com
    www.mothergoosetools.com
      ----- Original Message ----- 
      From: John Ross 
      To: pianotech at ptg.org 
      Sent: Wednesday, April 01, 2009 7:18 AM
      Subject: Re: [pianotech] stuck keys after one hour of playing


      I found that removing the action, and doing a swing test, pointed out the culprits.
      Swing test, is remove action, point hammers at the floor, and swing action. The hammers have  different rates of swing. 
      Repair the bad ones.
      John Ross,
      Windsor, Nova Scotia
        ----- Original Message ----- 
        From: Dean May 
        To: pianotech at ptg.org 
        Sent: Wednesday, April 01, 2009 10:15 AM
        Subject: Re: [pianotech] stuck keys after one hour of playing


        Hi Barbara

         

        I used to sell Young Changs. I saw the exact symptom lots of times and it was almost always a tight hammer center. My quick test is to pull the action, lift the hammers to vertical, then push them down gently until they fall from gravity. They should drop when you get to about 75 degrees, but likely you'll find several that won't drop with the rest. If they are really tight they will just drop slow. 

         

        Dean

        Dean May             cell 812.239.3359 

        PianoRebuilders.com   812.235.5272 

        Terre Haute IN  47802


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        From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf Of Barbara Richmond
        Sent: Tuesday, March 31, 2009 6:01 PM
        To: pianotech
        Subject: [pianotech] stuck keys after one hour of playing

         

        Howdy,

         

        I just got a call from a fellow who has an almost 10 year old Wurlitzer grand (I think it was made by Young Chang--correct me if I'm wrong.).  He said he's been having some trouble with keys starting to stick <after> he's been playing for a while--like an hour--and then they just won't go.  We've made an appointment for me to come out and have a look.  I will check the action centers & keys for friction levels, of course, but this seems sort of unusual--well, I've never been witness to such behaviour, anyway.  Has anyone else experienced such symptoms?

         

        Thanks,

         

        Barbara Richmond, RPT

        near Peoria, IL
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