physically getting hammers on shanks

[Mike Spalding]

Ed,
Schaff makes a  #75 Reducer, #291 Shank Knurling Pliers, and #217 Hammer 
Shank Knurler.  I strongly recommend the #217 knurler, even though it is 
the most costly of the 3 tools.  Knurl for a loose fit - the  moisture 
in the glue will swell the shank and make a nice tight joint.
Mike

Leslie Bartlett wrote:
> Schaff sells a tool to reduce the diameter of the shank so you size them for
> easy fit
> les bartlett 
>
> -----Original Message-----
> From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org] On Behalf
> Of ed miller
> Sent: Tuesday, December 19, 2006 5:23 PM
> To: pianotech at ptg.org
> Subject: physically getting hammers on shanks
>
> Would any one please share their technique for shanking up hammers for a
> vertical piano? What is your procedure for physically putting the shank
> inside the hammer (new hammers on new shanks)...its such a tight fit?! Do
> you only use your hands to push them together, do you use a hand tool to
> firmly grab the shank and twist it into the hammer, do you tap the shank
> into the bored hammer with a hammer (tool), etc......?
>
> I'm in the process of putting new hammers on new shanks (for the first time)
> and have tried a few techniques so far. After doing my first 16 I've
> realized that I'm getting varying rake angles on many of them. This is
> obviously a problem and is probably a result of my procedure.
>
> The hammers were bored by Brooks, Ltd. I knurled the shanks myself with a
> shank knurling hand tool (as opposed to the bench top version)- so they are
> not perfectly even around, though I did a good job.
>
>
> Thanks,
> Ed
>
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