hammer-shank glue joint

[John Ross]

I suppose the only sure way, is to pull the hammers and reglue.
If they 'wiggle', they should just come off, with a pair of removal pliers.
John M. Ross
Windsor, Nova Scotia, Canada
jrpiano at win.eastlink.ca
----- Original Message ----- 
From: "Bob Hull" <hullfam5 at yahoo.com>
To: "Pianotech List" <pianotech at ptg.org>
Sent: Tuesday, July 24, 2007 3:26 PM
Subject: Re: hammer-shank glue joint


> Barbara,
>
> The piano with loose hammers is a big grand.
> I have my doubts that I would be satisfied with this
> approach and it will still be using the hammers that
> are not premium quality.  I need to know that the
> joint between these two surfaces is connected solidly
> and entirely.  If not, they may do okay for a while
> and then later develop problems that bite me.
>
> Bob
>
> --- Barbara Richmond <piano57 at insightbb.com> wrote:
>
>> Hi Bob,
>>
>> I hate situations like this and it seems like I'm
>> always cleaning up after
>> someone else.  The only comment I can give to owners
>> is, "Let's do it
>> right."  And then I do it--or not, it's their
>> choice.
>>
>> Looking for an easy way out, I tried to tighten a
>> hammer/shank joint with
>> thin CA.  It didn't work--for me, anyway.
>>
>> Is this a grand or upright?  Don't the loose hammers
>> click?
>>
>> Barbara Richmond, RPT
>> near Peoria, Illinois
>>
>> ----- Original Message ----- 
>> From: "Bob Hull" <hullfam5 at yahoo.com>
>> To: <pianotech at ptg.org>
>> Sent: Tuesday, July 24, 2007 12:36 AM
>> Subject: hammer-shank glue joint
>>
>>
>> > Today I looked at a piano that has received new
>> > hammers from another shop because the owner asked
>> me
>> > to come and evaluate it.  They are disappointed
>> with
>> > the lack of power that the piano has.
>> >
>> > It really needs a quality complete rebuilding job
>> but,
>> > that's a very unlikely option for this owner.  One
>> of
>> > the major problems is the very soft hammers.
>> Another
>> > is the weak glue joint between the hammer and the
>> > shank.  There is no glue collar and you cam feel
>> the
>> > looseness of the joint as you wiggle it.
>> >
>> > I thought about squirting the area with thin CA.
>> I
>> > don't know if that will really penetrate enough or
>> if
>> > the hammer needs to come off.  I could also add a
>> > little glue collar for reinforcement.  This may
>> > eliminate the wiggle but, would it add the
>> stiffness
>> > needed on the inside where the two largest
>> surfaces
>> > connect?
>> >
>> > Suggestions?
>> >
>> > Bob Hull
>> >
>> >
>> >
>> >
>>
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>
>
>
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