During production the canbodies face unequal body offset.

Possible cause:

• Maintain the calibration crown according to the manual (Book 2; chapter 5.5.4.)
  Important: All precalibration rollers must turn smoothly, not one should be blocked.
• Reset the calibration crown according Resetting of the tooling
• Guideline: The higher the production speed, the more difficult to control body offset issues!
• Tin deposit on z-bar grooves
• Rollforming not enough

Special settings:

• The setting of the first, second and probably third spring tensioned rollers before the diabolo roller crown may vary in setting.
• Basic setting – first, second and – depend on can height – also third rollers should have 0.10 mm movement.
• If the body offset still remain, start to undo all the nuts of the first pre-calibration rollers by a sixth turn, and so on.
• Check whether the Z-bar grooves are clean or full of tin/steel pick up:
  • If the grooves are full, clean them by sandpaper 400 or higher. For better cleaning take off the lower welding arm completely. Switch off the chiller before start to dismantle!
  • Check the insulation according manual – How to do an insulation check (yearly task)?
  • Check whether the secondary circuit – lower arm side – is connected to ground by a separate green/yellow cable!