1. The initial continuous operation time should not exceed 60 minutes.

2. The maximum temperature of the water pump bearing should not exceed 80 °C. The bearing temperature should not be 40 °C higher than the surrounding temperature. Otherwise, the bearing should be cleaned or replaced, and the grease oil (molybdenum disulfide composite calcium base grease) should be added.

3. Pay attention to the abnormal sound of each component, whether the exhaust pressure and exhaust temperature are normal.

4. Check if the oil pump is normally supplied with oil and whether the lubricating oil surface is at the specified height.

5. Pay attention to the abnormal sound of each component, whether the exhaust pressure and exhaust temperature are normal.

6. Check that the motors and electrical appliances of the concrete mixing station should be free from overheating, and check whether there are water leakage or air leakage in the water pipeline and gas pipeline.

7. Observe whether the action of each solenoid valve and cylinder is normal, and check whether the opening of each discharge door is flexible and tight.

8. The electronic scale of each batching device and whether the sensor works normally, the measurement sensitivity and error should meet the requirements.