hammer butt springs

[Thomas D. Seay, III]

>I've got a Yamaha console (about 13 yrs. old) that has suddenly
>developed a problem with the loops, which hold the hammer return springs,
>starting to break. (Schwander style, you know). Why would these be
>breaking? I'm wondering if the material of the loops is not treated with
>moth repellant, and if so may have been weakened by little critters? Would
>some type of corrosion on the springs have begun to act as an abrasive?
>
>By the way, what material should I replace these with? I've used dental
>floss for repairs, but I'm sure that's not the appropriate material
>(actually I'm not sure, but I'm guessing). But first I want to have at
>least a theory of what has caused the problem so it doesn't come back as
>soon as I'm done.
>
>Bob Simmons, RPT
>CSU San Bernardino

Bob,

After repairing two complete sets by replacing the material, I'd suggest
that you order a replacement set of flanges from Yamaha. It's easier,
believe me. Even figuring in the time for pinning and traveling hammers, I
believe it is much quicker to simply replace the flanges.

Good luck.

Tom Seay
t.seay@mail.utexas.edu
The University of Texas at Austin