Hammer wobble

[John Ross]

Hi Joe,
Thanks, for the reply.
I hadn't realized the problem, was so bad.
I just replaced a set of shanks. I didn't check them all.
I found only two obvious ones, that I had to repin. I could see the tight
one easily, the hammer return was slow.
The loose one took a while to figure out.
The note would play normally, for all but a hard blow.
On a hard blow, the tail, caught on the backcheck. I adjusted it in , out,
it would catch then not catch, but then it wouldn't check.  It ended up,
after swapping parts, that was the flange, it was loose by an extra 4
swings. I repinned for 3 swings, and it was ok. They were Encore Renner
style shanks, and I thought 2 bad, was good.
Who knows if I would have found more out of tolerance, if I had checked them
all.
The piano works to the customers satisfaction.
But next time I will check them all, just for self satisfaction.
Best regards,
The shank pinning was the last thing that I could think of to try.
John M. Ross
Windsor, Nova Scotia, Canada
jrpiano@win.eastlink.ca
----- Original Message ----- 
From: "Joseph Garrett" <joegarrett@earthlink.net>
To: <pianotech@ptg.org>
Sent: Friday, April 23, 2004 8:40 PM
Subject: Re: Hammer wobble


> John M. Ross said: "Did I hear on the list a while back, that some techs,
> repin the complete new
> set, to ensure uniformity?"
> Regards,
> John M. Ross
> Windsor, Nova Scotia, Canada
>
> John,
> I've found that most new parts sets require, at least 50% of them, to be
> repinned to proper specs. There are some manufacturer's goods, that
require
> more in the 90% to 95% to be repinned! I wish it were different, but it's
> not, so I deal with it and just pass the cost on to the client.
Considering
> that parts costs are a very small portion of the cost of
> rebuilding/repairing, etc., I just do it. Of course, the anal part of me
is
> mumbling all the while, because we shouldn't have to rebuild new parts to
do
> our rebuilding! O.K. I'm done with my rant.<G>
> Joe Garrett, RPT, (Oregon)
> Captain, Tool Police
> Squares Are I
>
>
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