new grand hammer head replacement

[D.L. Bullock]

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Since you have new hammers and you are putting on new hammers, and you do
not have hanging jigs or much experience, I would use the old "every other"
method of hanging hammers.  Remove every other hammer and replace them all
with new ones.  This will line them up totally with the old ones to get all
strike points right.  Be sure to number them so you don't get confused in
their order and can tell between the two sets.

This works for my apprentices except for old multi sandfiled hammer sets.
You may have to shape tails first, by the way.
D.L. Bullock
www.thepianoworld.com

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  -----Original Message-----
  From: antares [mailto:antares@euronet.nl]
  Sent: Saturday, October 02, 2004 12:03 PM
  To: Pianotech
  Subject: Re: new grand hammer head replacement



  On 2-okt-04, at 17:52, ilex cameron ross wrote:


    Hi all -
    Dunno if anyone remembers the ruined set of Hamamatsu hammers on the
Kawai EX that I was dealing with - someone a while ago seriously
over-lacquered them, and not evenly, to the point where they couldn't really
even be even'd-out with needling. Soaking in thinner muffled the
glass-breaking timbre, but didn't really leave me with what i felt was
something worth trying to work with. Pretty much ruined, being as how it's a
9' concert instrument. So I had them order a set of new hammers, and
requested they come on new shanks and flanges in the interest of time. Nope,
not happening. The lovely new hammers just arrived - heads only. Not a huge
deal, really - they're already properly bored, tails are shaped, and I guess
ultimately this is probably better. The current shanks and flanges are
great. it's just going to mean heat-gunning the current ones and glueing
this set on. I've never just *glued* a WHOLE SET of grand hammers on a
piano - is there anything special I should look out for? the archive just
seems to have info on hanging a new set, new shanks, flanges, and all. I was
just going to go one at a time or one section at a time so I'd have a guide
with the action out of the piano for hammer angle.

    any other suggestions?

    thx,
    ilex

    ps - Joe, you've jinxed my keyboard! now my backspace is crapped out.





  My advice would be to make small pencil marks on the first and last hammer
crown of each section, and EXACTLY in the center of the crown. see picture:


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