Player piano problem

[Ron Nossaman]

> Jon: The first branch is the best description of the problem: the hammer 
> lifts off the rail and stays off, the key stays depressed, and does not 
> return. This is a Hallet and Davis player. That is the limit of my 
> player knowledge. I don't know the different kinds of stacks, or primary 
> valves. The roll is tracking properly. My guess is a tubing problem, or 
> a valve problem.
> Thanks ,
> Patrick


Hallet & Davis should be a Simplex action, which could be 
either single, or double valve. I'd start with tightening 
every screw in the stack that you can get a screwdriver on. It 
doesn't take much of a gasket leak to produce a cipher. Snug 
'em down and the problems might just magically go away. Hosing 
is a distant second probability.

Ron N