[pianotech] Replacing plastic elbows

paul bruesch paul at bruesch.net
Mon Dec 7 21:14:42 MST 2009


For the replacement elbows... a while back, someone suggested heating the
drop wire with a propane torch, then stuffing it into the new elbow. I've
done this, holding the wire with my big electrician's pliers right at the
top of the threads. Assuming the threads end at a uniform distance, and
everything else being equal (elbow dimensions, old elbow position relative
to the threads) it works out very quick and slick. The wire does not have to
be incredibly hot, and in fact should not be in order for it to accurately
follow the hole.

Paul Bruesch
Stillwater, MN

On Mon, Dec 7, 2009 at 9:58 PM, Tom Driscoll <tomtuner at verizon.net> wrote:

>
>
> -----
> Dear Friends,
>
> I have a Lester spinet action belonging to a long-time customer on my bench
> (that is, my dining room table) that needs new elbows.  I thought replacing
> the original plastic elbows would be easy, but only the broken ones are
> brittle; the unbroken ones are hard as concrete.  How do you replace these?
> Unpin them to put the new ones on? I don't want to risk breaking the wippen
> by trying to bend the old plastic ones. I'd be grateful for your advice, and
> my wife will be thrilled to get the dining room table back.
> Thanks,
> Greg Livingston
> PS- I have not figured out how to search the archives, though I've tried; I
> need help in that area, too.
>
> Greg,
>  Tom Driscoll here from the Boston chapter.
>  Yes do them all.
>  Don't bend the old elbows. There are several methods for removal but
> usually they shatter when cut with a set of diagonal pliers. Be carefull
> around the center pin where it engages the whipen. The wood is very thin
> there but if the elbow is brittle it can be either crushed with needle nose
> pliers  or clipped out in pieces with the flush cutter pliers used to trim
> center pins. If I rembember  Jon Page has a modified tool for this job. Jon
> ?
>
> Brittle is good for removal---soft and gooey not as easy
> .I use the Vagias snap in elbows and leave the pin alone.Spin the drop wire
> into all the elbows equally  and as close to the overall length of the old
> assembly .Less regulation later.
>  I used to do three or four a year but most of these have been replaced or
> sent to heaven. It is the rare elbow job that comes my way of late.
> Remember that Betsey welcomes all of her childen home eventually!
>  Have fun,
> Tom Driscoll
>
>
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