According to the design model, properly control the feed size. It is strictly forbidden to put materials exceeding the design maximum size into the machine. Select the appropriate feeding equipment, such as apron feeder or vibrating feeder.Ensure uniform and stable feeding, avoid equipment impact and invalid operation caused by uneven feeding. Due to the quality error of the hammer head during casting, the hammer head should be turned over in time according to the current situation during use, so that the hammer head wears evenly and the rotor runs in balance. When replacing the new hammer head of the crusher, we must weigh it well and divide it into several groups according to the average quality, and the quality requirements of each group are equal.Otherwise, the unbalanced rotor will easily cause vibration when starting. Due to the friction during operation, the shaft diameters at both ends of the main shaft are easy to wear. When installing, two bushings should be added to the shaft diameter to protect the shaft diameter. After the bearing is worn out, repair and adjust it in time. After the bearing is worn, the bearing bush should be scraped off according to the new size, and the thickness of the gasket should be adjusted to maintain a reasonable gap and form an effective lubricating oil film. The materials accumulated in the crusher should be cleaned regularly. The presence of built-up material will severely wear the hammer head and reduce its service life.