1. No-load trial run: In the absence of raw materials, start the drum granulator for no-load trial run. Observe whether the equipment runs smoothly and check whether there are abnormal sounds or vibrations.

2. Check various parameters: Check whether the speed, feed speed, and discharge of the drum meet the design requirements. If necessary, adjust the parameters to ensure the normal operation of the equipment.

3. Feeding trial run: After the no-load trial run is normal, start a small amount of feeding trial run. Observe the mixing and granulation of the raw materials in the drum and check whether the granulation effect meets the requirements.

4. Adjust the granulation effect: According to the observations during the trial run, adjust the parameters such as the inclination angle, speed, and feed amount of the drum to optimize the granulation effect and production efficiency.

5. Check the discharge situation: Ensure that the particles in the drum are discharged evenly, and check whether the discharge system is working properly without blockage or accumulation.

6. Equipment maintenance: Regularly check various parts of the equipment, such as bearings, seals, etc., to ensure that they are in good working condition. Replace lubricating oil and other wearing parts on time to extend the service life of the equipment.