Re: Sticky Key on Cajun Accordion
- From: Bruce <NCPartisanRanger@xxxxxxxxx>
- Date: Wed, 31 Oct 2007 23:54:38 -0700
On Oct 31, 11:20 pm, happypotatod...@xxxxxxxxxxx wrote:
(snip)
so does anyone have an idea what might be causing the key to stick, or
how I can check and/or fix it?
There are a number of causes. A relatively frequent one is a
spring that's not strong/tight enough. But usually, it's humidity.
The pivot part of the key is wood on most one-rows. It will swell
enough to pinch down on the metal rod that it's supposed to pivot on.
Also, it is made to fit quite closely in a slot milled in a wooden
fingerboard -- the reason it's tight is that if it were to be loose,
the whole thing would wobble around. If the key pivot swells (or if
the slotted area in the fingerboard swells) this will pinch the key,
too.
One good way to check this out is to put the box in a dry place
(air conditioned or de-humidified room - maybe a local library would
let you leave it there overnight -- or an airing cupboard etc.) and
see if that helps. If it's humidity, the problem is around that
pivot. Probably the best way to tackle it is to pull the metal pivot
rod, watch what happens very carefully with the top two or three keys
then be prepared to reassemble them correctly in reverse order. Once
you have the rod out, carefully relieve the sides of the key pivot
area (or the slot in the fingerboard if you see something like a wood
"burr" but usually it's best to smooth down the sides of the key; it's
easier to keep the areas flat -- but be careful and don't remove too
much). If it's the key sticking to the rod, that's harder. You'll
have to find a way to remove a miniscule amount of wood from the pivot
hole; maybe a set of number/letter drills would be the way to go. I'd
polish the rod in that area, too.
One thing you *shouldn't* do is to put any kind of oil or grease on
the area. It will attract dust and gum things up even worse. I've
heard people recommend graphite-lube (the "dry" kind, not graphite in
oil) but I've never tried it and I'd be leery of it.
HTH, BH
(PS DAMHIK .... )
.
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