Yamaha C3 regulation

[Gary Mushlin]

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Lance,

Have you checked the action spread? If it is not correct, the knuckles=20=

may not line up with the jacks perfectly. There may be other reasons as=20=

well.
You may wish to call Yamaha toll-free. They are among the best in=20
helping out technicians in the field. If you do call, make sure you=20
have the action spread measured, as they will probably ask you for=20
that.

Sincerely,
Gary Mushlin, RPT


On Jul 28, 2004, at 1:57 PM, llafargue wrote:

> =A0
>
> I will plug these ideas in. If anything, the knuckle core is angled=20
> toward the key front/player, when the jack is straight up. =A0=A0The =
angle=20
> of knuckle core and back of jack are not exact.=A0 Close, but not=20
> exact.=A0 I=92ll be back.
>
> =A0
>
> Lance Lafargue, RPT
>
> LAFARGUE PIANOS
>
> New Orleans Chapter, PTG
>
> 985.72P.IANO
>
> llafargue@charter.net
>
> =A0
>
> -----Original Message-----
> From: caut-bounces@ptg.org [mailto:caut-bounces@ptg.org] On Behalf Of=20=

> llafargue
> Sent: Wednesday, July 28, 2004 8:17 AM
> To: 'College and University Technicians'
> Subject: RE: Yamaha C3 regulation
>
> =A0
>
> I=92m headed back to the piano to check more carefully.=A0 The =
backchecks=20
> aren=92t doing it.=A0 On after touch; I tried raising the glide bolts =
to=20
> see if that affected it, but no. Thanks, I=92ll post later today.=A0
>
>  =A0
>
> Lance Lafargue, RPT
>
> LAFARGUE PIANOS
>
> New Orleans Chapter, PTG
>
> 985.72P.IANO
>
> llafargue@charter.net
>
> =A0
>
> -----Original Message-----
> From: caut-bounces@ptg.org [mailto:caut-bounces@ptg.org] On Behalf Of=20=

> llafargue
> Sent: Tuesday, July 27, 2004 9:23 PM
> To: caut@ptg.org
> Subject: Yamaha C3 regulation
>
> =A0
>
> List,
>
> =A0I have a customer with a Yamaha C3 that=92s 4 years old.=A0 It is =
like=20
> new, very slight knuckle/hammer wear, but really good shape.=A0 I have=20=

> regulated it and everything seems great except that the let-off bump=20=

> feel seems excessive and I can=92t figure out why, on this C3.=A0 I =
have=20
> lubed everything, knuckles with Teflon, McLube to all key pins,=20
> whippen/jack tops, etc, but when the jack lets off, you really feel=20
> it.=A0 Also, when playing pianissimo, at the point of let-off, there =
is=20
> a definite wall that you hit and it actually prevents some notes from=20=

> releasing.=A0 I am wondering what aspects of regulation affect this.=A0 =
Or=20
> is there something else I am missing?=A0 Let-off is about 1/8=94 to =
1/16=94=20
> graduated, drop a little more than that, checking is close; rep=20
> springs are not too strong.=A0 Knuckle and jack top shape seem =
normal.=A0=20
> Thanks.=A0=A0
>
>  =A0
>
> Lance Lafargue, RPT
>
> LAFARGUE PIANOS
>
> New Orleans Chapter, PTG
>
> 985.72P.IANO
>
> llafargue@charter.net
>
> =A0

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