Dynamic balancing of the shot blasting impeller is crucial for ensuring the safe and efficient operation of the equipment. The following precautions must be strictly followed:

* **Dynamic Balance Inspection and Maintenance:** Regularly check the dynamic balance of the impeller and blades. If abnormal vibration or uneven wear is found, adjust or ｒｅｐｌａｃｅ the blades promptly. Blades should be replaced in groups (e.g., 8 blades per group), ensuring the weight difference between blades is less than 5 grams to maintain dynamic balance.

* **Lubrication and Bearing Protection:** The impeller bearings require regular lubrication (e.g., adding No. 2 calcium-based grease weekly) to prevent overheating or damage due to poor lubrication, which indirectly affects dynamic balance.

* **Shutdown Operation and Safety Precautions:** Before adjusting the dynamic balance, the machine must be completely stopped and the power supply disconnected. The protective cover can only be opened after the impeller has completely stopped rotating. Operation during operation is strictly prohibited.

* **Wear Monitoring and Calibration:** Closely observe vibration and abnormal noise during operation. If significant vibration occurs, immediately stop the machine to check for impeller imbalance or wear on wear parts, and recalibrate the dynamic balance.