Faulty pallets

[jdm]

This is from a brand new 4R36 watch that stopped randomly and had an horrible pattern. Lubricating balance pivots and pallets improved the pattern a lot, but it would still stop easily. When testing the pallets on the escape wheel it had a slight tendency to "spring" to the exit positions, so I replaced it with another from the spares box. Much better, crossing fingers it seems to be running reliably, and the pattern and amplitude are almost perfect.

I can kind of see that a stone is so slightly slant ?!?

 

[rogart63]

Slightly slant  That is very easy to see that it's wacked out of place. No wonder that didn't work as it should.