Tokai piano

[Leslie W Bartlett]

	Why do the pins get tight?    I've hear Oriental pianos "do that", but
not heard "why".    What to do with the springs?  Newton Hunt just wrote
me a long thingie, and I get the idea that they should be weakened so
they barely lift the whip on their own, as they fairly jump now, when
keys are held down at backrail and hammers are lifted off the rep
lever........
thanks
les

On Fri, 08 Mar 2002 15:40:19 -0600 "David M. Porritt"
<dm.porritt@verizon.net> writes:
> Les:
> 
> From my experience with these things, it's probably not from the 
> fire
> but from the "T" on the fall board.  I think they are a little prone
> to get tight like some other eastern pianos.  
> 
> dave
> 
> *********** REPLY SEPARATOR  ***********
> 
> On 3/8/02 at 9:54 AM Newton Hunt wrote:
> 
> >Hi Les,
> >
> >First, the wippen spring help REDUCE sluggishness by reducing key
> >weight.  If they just lift their own weight then they are adjusted
> >properly.
> >
> >The after effects of a fire take a loooong time to settle down to
> >"normal" which will not necessarily be what we consider normal.
> Smoke
> >damage is long lasting, and dangerous, to you since it is more than
> just
> >toxic.  When you work on the action I would wear a mask and some
> gloves
> >when you can.
> >
> >Sluggishness comes from lots and lots of sources.  If everything
> else is
> >normal then I would start by polishing the key pins, front and
> center,
> >lubricating the bushings and pins and when installing the keys do 
> so
> one
> >at a time and carefully ease each key, front, hole and button.
> Polish
> >the capstans and lubricate them and the rocker cushions.
> >
> >Repin the entire hammer rail section and if the wippens and other
> pin
> >sets show the same symptoms then repin those as well.  
> >
> >Without meticulous attention to details and doing all 88 of 
> whatever
> >then what is left undone will come back and bite you.  Carefully
> check
> >the pinning of the damper section and check the polish of the 
> wires.
> 
> >WHen you are done it will play like a dream.
> >
> >		Newton
> >
> >Leslie W Bartlett wrote:
> >> 
> >> I ran in to my first experience with whippen assist springs this
> week,
> >> and think I heard some negative things about such on the list, 
> but
> would
> >> like current thinking I can share with customer. All parts in
> whippen are
> >> plastic, and the spring actually will lift the whippen up, at
> rest, when
> >> the back (damper-end) of the key is held down.
> >> 
> >> I think it is contributing to a sluggish action.  The home in
> which the
> >> piano resides had a fire five years ago. The piano was covered
> with a
> >> large tarp, says customer, in order to "prevent it from getting
> >> wet"........   Now, five years later, hammers are either sticking
> or
> >> swinging 1-31/2 times. There is some verdigris on the bass
> hammers, but
> >> the hammer flange pins look clean, as does the hammer flange 
> felt.
> >> Wisdom needed. Repinning seems to fix the hammers, but I cannot
> figure
> >> why it would take this long for them to get tight.
> >> Thanks
> >> les bartlett
> >> houston
> >> 
> >> ________________________________________________________________
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> 
> _____________________________
> David M. Porritt
> dporritt@mail.smu.edu
> Meadows School of the Arts
> Southern Methodist University
> Dallas, TX 75275
> _____________________________
> 


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