[Trombone-l] Valve screw for Bach 50B3

[Peter W. Schroth]

What I can say about that is since I put the new screw in, with one tiny 
drop of blue Loctite, that valve works more smoothly and quietly than it 
has in at least a year.  I suspect the screw may have been a little 
loose for a long time, causing the arm to be just slightly out of position.

Peter

thetubameister at roadrunner.com wrote:
> Have the stop arm properly fit to the rotor spindle - then the srew won't back out and you won't need loctite :-)
>
> J.c.S.
>
>