Loose roller table

[dnhb]

In trying to re-install a balance assembly in a small pocket watch I found that the roller table was rotating on its arbour. I have tried pressing it using an appropriate stake but to no avail. Under magnification I think I can see shellac around the area where it sits on the boss of the balance wheel (I can't get a clear enough picture to show this). Is this in fact how such tables are secured or are they just a friction fit? I'd be grateful for advice.

[Nucejoe]

I be concerned if this roller table belongs ! 

 Timegrapher will ask,  where did you get this roller table or balance staff from?  

Regs

[JohnR725]

The roller table is supposed to be held on by friction. If there is shellac under the roller table it might indicate that an improper repair had occurred prior to this as it would not be held in place with shellac. Sometimes overenthusiastic people re-shellacking the roller jewel will get shellac where it's not supposed to be.

Then the picture of your roller it looks kind of damage? It doesn't quite look right it looks like somebody held with a pair of pliers or something?

Then your balance wheel has limited quantity of screws? Not necessarily a problem but an indication of perhaps with the other things a prior bad repair perhaps as a guess.

 

[caseback]

The problem/challenge with these things is that you don't know what brilliant solutions previous watch-tinkerers have come up with. Are all parts even "original"? Did the watch run ok (-ish) when you got it?

One possibility is that a replacement staff has been fitted and turned out to be a loose fit. 

Some of this has been discussed in the following thread:

 

Edited 1 hour ago by caseback

[mikepilk]

7 hours ago, JohnR725 said:

Then your balance wheel has limited quantity of screws?

This suggests that the hairspring may have been changed.  It certainly needs some straightening.

It may just be the lighting, but it looks like the pivot is out of shape.