Possible causes:
1. Clearance between the upper and lower cutter is too small – min. 1/100 mm.
2. The bearings of the roller cutter have play => they need to be free of play!
3. The roller cutter shaft is heating up differently!
a) Something touches the roller cutter => slowly turn the roller cutter by hand
b) the bearing is heating up too much => bearing defect!
c) If you have an exchange roller cutter => the roller cutter shaft might not be fixed properly to the side.
=> or the roller cutter shaft is too tensely assembled!
