After shutting down, if there is material stored in the material barrel, before restarting, it is necessary to raise the temperature of each single temperature zone to the required level according to the processing process regulations, and start it after insulation for more than 30 minutes. Starting before the temperature reaches the specified level is prohibited to prevent damage to the parts. The bubble film machine is repaired on time, the material pipes are thoroughly cleaned every three months, various rolling bearings are replaced with lubricating grease, and the reducer is replaced with lubricating grease every six months.

Conduct maintenance on the overall machinery and equipment every two years. If the extruder screw is removed from the barrel due to accidents, it should be properly disposed of to prevent deformation. If it is not installed back into the barrel for a long time, it is necessary to lift the extruder screw vertically to avoid scratches, bending, and permanent deformation. The surface of the barrel and extruder screw should be coated with rust inhibitor for maintenance.