H'mm, Presumably the rail actually contacts in the back (you sometimes have to glue wood back in because you are cutting off the lip). I haven't noted noise from the solenoid plungers rubbing under the keys, yet... A dag or two would eliminate one variable. Andrew On Sep 26, 2008, at 11:24 AM, piannaman at aol.com wrote: > Andrew, > > I don't rely on the dags, but in my limited experience--can't say > I'm entirely sure why--several of the pianos I work on that have > player systems (dags removed) have creaks/squeaks when the una corda > pedal is operated no matter how well I try to bed the keyframe, and > no matter where I apply various lubricants. And they emanate from > the area of the piano where the dags are missing. > > Dave Stahl, RPT > Dave Stahl Piano Service > dstahlpiano at sbcglobal.net > dstahlpiano.net > > > -----Original Message----- > From: Andrew Anderson <anrebe at sbcglobal.net> > To: Pianotech List <pianotech at ptg.org> > Sent: Fri, 26 Sep 2008 6:16 am > Subject: Re: Another player system question > > Without referring to my notes I recall exposing about 1/2" of key- > end and that the key-bed mortice was about 1/8" more. The dags we > used were metal 'C' shaped affairs (screwed to the keybed on the > front, leading edge) and we morticed them into the keybed and > notched the back-rail accordingly with room for the keyframe to > shift. Mind-you, this is all easier to do when the keybed is up on > horses. > > I remember on player crew from a manufacturer was attending and they > said, "We used to just throw them away." Mr. Zarate pointed out > that that would void many manufacturer's warranties. They now have > experience with an alternative. > > How many of you actually rely on the dags for bedding? I wasn't > taught that way. > > Andrew Anderson, Artisan Piano > > On Sep 25, 2008, at 10:51 PM, piannaman at aol.com wrote: > >> Hi Andrew, >> >> Thanks for the information. I suspected that the dags should be >> put back in the piano. How much of the key frame is cut off, >> usually? >> >> Even if one doesn't want to install these units, knowing how to >> troubleshoot them could be useful and possibly lucrative. >> >> Dave Stahl, RPT >> Dave Stahl Piano Service >> dstahlpiano at sbcglobal.net >> dstahlpiano.net >> >> >> -----Original Message----- >> From: Andrew Anderson <anrebe at sbcglobal.net> >> To: Pianotech List <pianotech at ptg.org> >> Sent: Thu, 25 Sep 2008 2:13 pm >> Subject: Re: Another player system question >> >> Dave >> We addressed this at a class at PianoDisc Sacramento. We moved the >> dags forward to the new keyframe edge making all the necessary >> adjustments as well as checking the bedding. This really is an >> installer quality issue. Some installers don't have any regulation >> know-how and don't have any idea if or why anything is wrong. >> >> As a dealer I've had to go through QRS equipped pianos from one >> source and work on just about everything. >> >> As a technician this is an opportunity to really shine if you >> aren't intimidated by those "blinking lights." >> >> YMMV, >> Andrew Anderson, Artisan Piano >> >> On Sep 25, 2008, at 9:18 AM, piannaman at aol.com wrote: >> >>> I'm not sure about that, Phil. But I am sure that one of the >>> pianos I work on that has key bedding / una corda squeak issues >>> (dags removed) is a Boston GP 178. So please, be careful when you >>> chop on that puppy! >>> >>> Dave Stahl, RPT >>> Dave Stahl Piano Service >>> dstahlpiano at sbcglobal.net >>> dstahlpiano.net >>> >>> >>> -----Original Message----- >>> From: Phil Bondi <phil at philbondi.com> >>> To: Newtonville <pianotech at ptg.org> >>> Sent: Wed, 24 Sep 2008 3:00 pm >>> Subject: Another player system question >>> >>> Does anyone know if the Boston GP178's keybed is easily removed >>> for solenoid installation? >>> >>> Thanks, >>> >>> -Phil Bondi(Fl) >>> Find phone numbers fast with the New AOL Yellow Pages! >> >> = >> Find phone numbers fast with the New AOL Yellow Pages! > > = > Find phone numbers fast with the New AOL Yellow Pages! -------------- next part -------------- An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/20080926/a13d303b/attachment.html
This PTG archive page provided courtesy of Moy Piano Service, LLC