hammer shanks

[Greg Newell]

Terry,
    Normal to repin 20 centers in 3 months? Not a chance! Who could afford to
play the piano if that was the case. It sounds as if this customer needs to
control the humidity in the room the piano is in at least. Are they on the
water's edge?

Greg

Farrell wrote:

> You are going to hate these questions. But they are real.
>
> OK, so I read this so often: "I repin anyways as I have found stock pinning
> to be"....not to certain standards. Just what are technicians standards for
> an action they are rebuilding - let's make the assumption that they are
> trying to do a good job.
>
> Within 2 grams friction of their target friction? What do you shoot for?
>
> Let's go one step further and figure that there was some consistency to the
> original pinning at the time of manufacture (maybe too big an assumption -
> but OK here - read on). So let's say that within one month or two, the
> action center friction has wandered off from some target. How often - what
> is normal - does center pin friction go astray. I realize one action center
> may remain ideal for 50 years, while its neighbor goes askew once a month.
> Let me ask this another way. Customer: very talented piano teacher teaching
> advanced students. Piano: good condition hi-end piano - Yamaha C series or
> better. She complains when the piano is not working properly. For "average",
> fairly decent, environmental conditions - (not a church, and piano not next
> to window in un-air conditioned home) how often would you expect to find
> yourself repinning how many shanks/flanges? Again - I know it would be quite
> variable, but just a general average is what I am looking for (I don't know
> if it is common when servicing a hi-end customer to be repinning 20 action
> centers every quarter).
>
> Terry Farrell
>
> ----- Original Message -----
> From: "Richard Brekne" <rbrekne@broadpark.no>
> To: <pianotech@ptg.org>
> Sent: Tuesday, May 29, 2001 3:01 AM
> Subject: Re: hammer shanks
>
> >
> >
> > Newton Hunt wrote:
> >
> > > _I_ sort them by pin tightness.
> > >
> > >                 Newton
> > >
> >
> > I used to...but now I sort them after their weight ala Stannwood. I repin
> anyways
> > as I have found stock pinning to be often as not rather pathetic. On just
> about
> > any given set of grand shanks I have ever purchased well half of the
> centers were
> > bad in one way or another.
> >
> > --
> > Richard Brekne
> > RPT, N.P.T.F.
> > Bergen, Norway
> > mailto:rbrekne@broadpark.no
> >
> >

--
Greg Newell
Greg's Piano Forté
12970 Harlon Ave.
Lakewood, Ohio 44107
216-226-3791
mailto:gnewell@ameritech.net