Slow hammer return

[Patrick C Poulson]

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Arthur: I would treat the centers and recommend a Dampp-Chaser system as well. Its likely that the humidity could cause the problem to return, and could be creating other problems that are as yet not apparent.
Patrick Poulson, RPT
  ----- Original Message ----- 
  From: Arthur Chickering 
  To: pianotech@ptg.org 
  Sent: 6/24/2002 8:37 AM
  Subject: Slow hammer return


  List,
  I have a customer with a 1921 Steinway Upright with very slow hammer return, which I think was caused by a floor humidifier.  I  heated the hammer butt centers with a hair dryer, which freed up the hammers for about 1 hour. The questions is what do you think is the most reliable way to free up sluggish hammers without replacing center pins or parts?  Should I use silicone and naptha, alcohol and methanol or install a Dammp-Chaser heater bar with a humidistat?

  Thanks,
  Arthur


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