The cause and effect diagram after diagram showing cause and effect , we found three assumptions. 1. Check Cartridge Heater difficult to remove 2 Cartridge Heater 3 Cartridge Heater embedded in Master Die.
From the cause and effect diagram after use cause and effect diagram we found 3 hypothesis. 1 check Cartridge Heater hard 2 Cartridge Heater. Remove the hard 3 Cartridge Heater buried in the Master Die