[pianotech] Perma free II

[Dale Erwin]

I just pinned a B from a college. 8 yrs old. I have the opposite issue as you David. Seems like they were aiming at zero friction. The rep levers and hammer flanges were repinned Friday...boring job. Pro felted the keybushings. Big improvement. I glued riser felts on the wippens supports to keep the hammers from flopping down into backcheck canyon and then jamming against the rocksa...I mean backchecks. 
All in all the sound improved, the action feels more solid. It went from 0-1 gram friction prior to my  new pinning at 3 or 4 grams quite consistently for the hammer flanges.
The  rep lever went from a sloppy fit with a number 20 center pin and negative friction and a mushy bushing to now I have enough friction to increase the rep spring tension and prevent the jamming jack issues with a 21 1/2 center pin. Jack pinning was crap too but hey no money. 
And why do people use these substandard parts.  Oh that's right! Now I remember. 
 See Ron I still have brain cells. Yup...they're gen-u-whine Steinway parts.


Dale Erwin R.P.T.
Erwin's Piano Restoration Inc.
 Mason & Hamlin/Steinway/U.S. pianos
www.Erwinspiano.com
Phone: 209-577-8397

 
  





-----Original Message-----
From: Ed Foote <a440a at aol.com>
To: pianotech <pianotech at ptg.org>
Sent: Wed, Sep 26, 2012 11:47 am
Subject: Re: [pianotech] Perma free II


Greetings,
    It appears that even the manufacturer is unable to control the 
pinning, so good luck. Pinning these is like trying to shovel sand.  
And that is what it seems like as you repin the action, only to see it 
begin to flop loosely around, springs having a carnival with the rep 
pinning so loose, etc.
    I have reamed them out to the loosest allowable amount and seen some 
success, but a year later, there is still a few here and there that 
have either regained their grip, or given up the grams and are floppy 
loose.
    I think this may be one of the reasons that the WNG hard bushings 
will be a prime attraction for the new composite parts, never mind the 
stability of the flanges!
Regards,

Ed Foote RPT
http://www.piano-tuners.org/edfoote/well_tempered_piano.html


-----Original Message-----
From: David Love
>>I've got a Steinway action that is seizing everywhere: jacks, hammer 
flanges, etc. Anyone found a good controllable solution short of 
repinning everything or changing parts? I know, alcohol/water w/ heat 
is the recommended approach but it produces very inconsistent results 
in the hammer flanges in my experience.David 
Lovewww.davidlovepianos.com(sent from bb)

  

 

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