[pianotech] Pulley Keys - was balance hole break-loose noise

[paul bruesch]

Simple question, slightly OT. Why is the condition known as "Pulley Key"

On Tue, Sep 6, 2011 at 12:17 PM, <johnparham at piano88.com> wrote:

> Joe,
>
> "insert gummed travel paper into the hole and
> > force the pin down on it, to hold it in place, until the glue, (it's
> > actually hide or fish glue, depending on the type of gummed paper you
> > have.<G>), until the glue has sets."
>
> I like this idea, but I have a few questions about your methodology:
>
> Specifically, how do you insert the gummed paper into the balance rail
> hole.
> -ball it up and stuff it in?
> -roll it up and carefully insert into the hole?
> -put glue in paper first or after it's in the hole?
> -size the hole with a spare balance rail pin or by putting key back on
> the keyframe?
>
> Thanks,
> John Parham
>
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