1. Before cleaning the machine, cut off the power supply to the machine so as to ensure the safety of people and the machine.
2. Clean the working table and the surface of the machine with a clean and moistened cloth.
3. Clean off the film scraps stuck to the feeding mechanism, mid-sealing mechanism and the end-sealing mechanism with compressed air.
4. Clean off the film scraps stuck to the end-sealing knife with a steel wire brush.

1. Add lubricating oil to the meshing gears of the drive system and the chains of the chain wheel, a thin layer of lubricating oil is enough. It is not allowed to add lubricating oil to the synchronous belt of the machine and the flat conveyer belt.
2. Add lubricating oil to the end-sealing bearing.
3. Check the tension of the drive chain and belt, retighten if necessary.
4. Check all the screws and nuts, if there is any for loose screw or nut, retighten it.
5. Check carbon deposit, clean if necessary.

III. Biannual check and maintenance

1. Check the wearing condition of the drive belt and the flat conveyer belt, replace if necessary.
2. Check all the wearing parts, replace the worn parts in time.
3. Check the wearing condition of the drive parts, replace if necessary.
4. Check the electric wiring and tighten if necessary. Clean the dust from the electric elements with compressed air.