| Reason | Inspect for faults | Exclusion Methods |
| Abnormal machine noise | Check if the machine's location is level | Change to a flat surface |
| Check if the rubber pads at the electrical box and machine connection have come loose. | With leather pads |
| Check if the machine's drive chain is loose or detached. | Tighten the chain |
| Machine not operating due to lack of power | Check if the power supply is normal; and ensure the fuses are in good condition. | Maintain power supply and replace fuses |
| Manual state sliding ring does not operate | Check the tension of the slip ring drive wheel | Adjust the eccentricity of the drive axle |
| Inspect motor for proper operation | Inspect motor external wiring or replace motor |
| Check the belt wheel and belt tension | Tighten belt pulley or belt |
| The packaging bags are too loose. | Check the tension of the film tensioner. | Adjust the tension of the film tensioner. |
| Check the belt tension. | Adjust the belt tension. |
| Check if the roller is securely fastened to the packaged item | Adjust the roller to the proper position |
