Campbell,
In reference to your question on the lids, the chuck wall does not impede, or come in contact with, any component of the gassing turret or cap guide rails. It separates the lid via the curl and then hangs by the curl's cut edge on the cap guide rails as the cap pushers feed it around to be made up to the can.
The line you are seeing on the chuck wall will not affect the lid feed in any way. A small adjustment of the separator screw either forward or back by about .010-.015 should do the trick. Without seeing the setup, I can't tell you which way to move it.
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David Garab
Preferred Seamer Service, LLC
"You Can't Sell Leakers"
c 404-234-4188
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