QRS Pedal Solenoid Issues

[Ric Thompson]

Contact Steve at QRS  800-247-6557

Ric Thompson
  ----- Original Message ----- 
  From: Andrew and Rebeca Anderson<mailto:anrebe at sbcglobal.net> 
  To: pianotuner at embarqmail.com<mailto:pianotuner at embarqmail.com> ; Pianotech List<mailto:pianotech at ptg.org> 
  Sent: Monday, November 26, 2007 12:39 PM
  Subject: QRS Pedal Solenoid Issues 


  I have this Hallet & Davis mini-grand on the floor with a QRS system 
  factory installed.  Saved a lot of time but dialing it in is very 
  much necessary.  Pedal lock screws on "pitman" loose and it dialed 
  itself way down... etc.

  It was played all day and it started having pedaling 
  deficiencies.  Tried putting a hand on it, ouch--hot.  It felt like 
  it was grinding to get down to the bottom of its travel.

  I noted that the pedal bar was at about a 5 to 7 degrees off axis to 
  perpendicular to the solenoid.  The solenoid was operating about one 
  inch back from the end of the bar.  I cut a six inch piece of wood 
  7/8" to wider at a 5 degree angle painted it and mounted the solenoid 
  to it.  I then turned up the power to the solenoid and now it is 
  playing the Schumann Symphonic Etudes quite well from the 2002 Piano 
  E Competition.

  Question, does anyone specialize in these QRS systems?  Is that 
  grinding feel normal when very hot?  Obviously the factory install 
  was perfunctory and nothing was idealized (angle, point of incidence 
  to one side of the bar, loose set nuts etc.).  Any other heads up on this?

  Andrew Anderson

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