In order to ensure the safety of operators and equipment, repairs, adjustments and cleaning operations are prohibited during machine operation, and various small doors are prohibited from being opened. Feeding can be done after the impact crusher is operating normally. Feeding be uniform and avoid mixing iron and hard objects. Feeding be s ped before s ping, and the motor will be s ped after the material is broken during the s . 　　After overhauling or adjusting the discharge opening, the rotor should be rolled by manpower *, and the rotor can be flexibly rolled after it is recognized that there is no friction and jamming between the rotor and other parts. When the particle size of the crushed product is too large, the machine should be s ped to check the wear of the hammer to avoid the rotor from being worn out. When the blow hammer needs to be adjusted by 180° for reuse due to wear, the weight of each blow hammer should be equal and balanced to avoid vibration after the counterattack breaks.
　　 When checking whether the fasteners are loose, it is important to check the pressure plate screws on both sides of the rotor to press the blower to avoid that after the pressure plate is loose, the two ends of the blower expose the rotor body and collide with the machine body and damage the machine parts. The impact crusher should be checked frequently during the operation process. When abnormal movement or bearing temperature is higher than 70℃, it should be shut down immediately for checking, and the machine can continue to be started after the failure is eliminated in time.