I have a machine... factory (Jap) A-2 on which I can't seem to nail the eccentric adjustment. I have set according "to the book" and things work fine for a few days and then the son of gun goes down on a spare with the deck lowering hook disengaged... thump! and resets the spare with a loud thunk! It also drops to new pins level when detecting a strike!
I know to adjust the eccentric (1/32" clearance) but for some reason this adjustment won't stay put on this machine! I would liek your thoughts on why the eccentric ring adjustment won't lock in on this machine? Overtightening the bolts perhaps? Is this a sign that I need to replace the eccentric ring?
Several months ago on this machine the eccentric cam bolts backed out causing a real mess and we had to replace the 1-1 gear (took the assembly to a machine shop that had a press capable of removing the gear and installing the replacement).
The adjustment is easy enough but I would like to know why is isn't staying put!
I know to adjust the eccentric (1/32" clearance) but for some reason this adjustment won't stay put on this machine! I would liek your thoughts on why the eccentric ring adjustment won't lock in on this machine? Overtightening the bolts perhaps? Is this a sign that I need to replace the eccentric ring?
Several months ago on this machine the eccentric cam bolts backed out causing a real mess and we had to replace the 1-1 gear (took the assembly to a machine shop that had a press capable of removing the gear and installing the replacement).
The adjustment is easy enough but I would like to know why is isn't staying put!
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