NavList:

   

Reply

Bruce,
My SNO manual has a drawing of the inside
of the Trommel, but the drawing is not clear
enough to figure out what the screw is doing there.
(I can see that it pushes some excentric, but the
total assembly is quite misterious to me).
Its effect is as you say: it becomes harder or easier
to rotate the drum, but it has no visible effect on
the lateral shaking of the arm or on the backlash.
But I did not play too much with it, being afraid
to make some irreparable damage.
The screw is so tiny and submerged so deeply
that I can hardly see it even
with
a watchmaker's magnifying glass. So I am afraid to damage its head.

Alex.

On Mon, 21 Nov 2005, Bruce Stark wrote:

> Alex,
>
> You asked about that mysterious little screw on the back of the trommel. I
> don't know what it's for either. Wouldn't it be nice if we could see inside the
> trommel? When I first got my SNO-T I tried to take the trommel off in order to
> clean it, but couldn't drive out the little drift pin that positions it on
> the end of the index arm. Perhaps that was a good thing.
>
> I have less riding on my SNO-T than you have on yours, since I have the
> Tamaya. So I've given that screw a few turns to see what happens. Turning it in
> makes the adjusting wheel turn too easily, backing it out tightens the wheel. As
> you can see the screw is set in at an angle, as if it were pushing on one end
> of a split ring. It doesn't seem unreasonable to suppose that backing this
> screw out a bit might lessen backlash. But I really don't know what I'm doing.
>
> Bruce
>

   

Reply