[CAUT] Yamaha regulation specs

[Ward & Probst, Inc]

Jim,
 
Yep, it gets a little dry here too 8~}
 
The late, great Jack Caskey taught me to do this via telephone support quite
some time back. 
 
For those that remember Jack and even more for those who never had the
pleasure there is a wonderful write-up by La Roy Edwards in the February
Journal.
 
Requiescat in pace, 
 
DP

-----Original Message-----
From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] On Behalf Of Jim
Busby
Sent: Thursday, February 10, 2011 10:09 AM
To: caut at ptg.org
Subject: Re: [CAUT] Yamaha regulation specs



Dale,

 

Yes, and I have to raise the BR on nearly every P22. That's what I mean with
"key travel" and not just "dip". I think it must be the dryness here in
Utah. It takes about a year or so for the thing to happen, but hammers start
to bobble and dip is about 9mm. 

 

Best,

Jim

 

From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] On Behalf Of Ward &
Probst, Inc
Sent: Thursday, February 10, 2011 7:14 AM
To: caut at ptg.org
Subject: Re: [CAUT] Yamaha regulation specs

 

I've had good success with shimming the balance rail for gross height, then
checking and improving level. It's quick and seems to last over time.

DP

Dale Probst, RPT

Registered Piano Technician

Midwestern State University

-----Original Message-----
From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] On Behalf Of Jim
Busby
Sent: Thursday, February 10, 2011 7:42 AM
To: caut at ptg.org
Subject: Re: [CAUT] Yamaha regulation specs

Dan,

 

No. You've got it. Nearly 100% of our P22s go through this. Unfortunately
the newer ones need such regulation the 1st year! Bobbling hammers caused by
shrinking key travel.

 

Pianists will tolerate a wider range in blow on uprights. A difference of
44-46mm blow doesn't seem to matter on a P22. (Maybe because it's a P22?) I
tend to vary blow and keep dip  at 10mm on uprights. And as I said, I rarely
sacrifice letoff like I've seen some do. 

 

Best,

Jim

 

From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] On Behalf Of Dan
Rembold
Sent: Wednesday, February 09, 2011 7:26 PM
To: caut at ptg.org
Subject: Re: [CAUT] Yamaha regulation specs

 


Thanks Jim, I thought I might have been missing something obvious.

Dan

 

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