Screw Damage
Don’t get screwed by this damage! The term “Screw Damage” can be misleading, while the screw is making contact with the can, adjusting the screw itself does not always eliminate this damage. This type of damage will usually present itself in the form of a sine wave, and is typically about an inch and a half from the bottom of the can. This damage takes place when the can is not centered on the lift while engaged with the chuck. The seamer timing, screw position, rail position, and stability of the lift all simultaneously dictate, or control the can position during full send!
Order of Operations:
Check the "Can At Dwell Start" position of the screw and ensure the dwell start corner is at the appropriate position.
Jog a finished can to the "Can At Dwell Start" position. Verify that it is perfectly centered on the lift pad.
Verify the position of your side rails at the seamer.
Raise the lifter and see if the lifter bearing has play side to side (see video below). Once it has play, it allows the can to lift at an angle, increasing the probability of screw damage, no matter how perfect your timing and positioning.
Evaluate and consider a screw position adjustment, contact the Codi Service Team before going further with this step.
