Frozen Let-Off Rail Fix

[John Ross]

Hi Terry,
I have never had much luck, with the heat or lubricant, some still
seem to break.
I found that remanufacturing, was not that hard, using the old one as
a guide. I predrill the holes, and use a power screwdriver to put in
the new regulating screws. To get them square, hold them on the
underside of the long piece of wood, as the end of the screw comes
out.
One point, I should have put earlier, you are using the regulating
tool, that has the 4 hollowed out parts, so you can turn the
regulating screw, with no binding. It was designed by Francis
Mahaffey.(spelling)
Regards,
John M. Ross
Windsor, Nova Scotia, Canada
jrpiano@win.eastlink.ca
----- Original Message -----
From: "Farrell" <mfarrel2@tampabay.rr.com>
To: <pianotech@ptg.org>
Sent: Friday, January 24, 2003 6:54 PM
Subject: Frozen Let-Off Rail Fix


> Old upright action. Task: refurbish a little, level keys, regulate.
Let off screws frozen pretty solid.
>
> What is the cheapest, quickest, most appropriate fix for this so
that I can regulate the darn thing?
>
> Remove rails and toast each screw with a torch?
>
> Lubricate with liquid wrench or something else?
>
> Replace rail? Are universal replacements available, or, I would
imagine, that the spacing will be different on any given piano?
>
> Going for the quick fix here. Low budget, make it work.
>
> Condemned two other pianos today. This one is definitely better than
the others, and besides, it was grandma's.
>
> One of the condemned was the Janssen grand I posted about
previously.
>
> Terry Farrell
>
> _______________________________________________
> pianotech list info: https://www.moypiano.com/resources/#archives
>