1. The wear of the broken wall and the wall of the rolling mortar will increase the size of the discharge port. Therefore, the size of the discharge port be adjusted regularly, and the hydraulic oil pump for the discharge port be adjusted by pushing the cylinder.      2. Check the size of the discharge port at four equidistant points in the crushing cavity by using a wire method around the wall of the rolling mortar. After adjustment, re-tighten the bolts.
     3. The spring is to protect the machine from damage when the unbreakable material enters the spring cone crusher. Therefore, during normal operation, the spring does not move. Only when the crushing cavity falls into the iron block, the support sleeve is lifted to compress the spring. During work, if the machine jumps, this is an abnormal phenomenon. You need to find the cause carefully and take measures to eliminate it. The reasons for the jitter of the machine may include: uneven feeding or too much feeding; too much small or powdery ore contained in the feeding ore; too small gap in the discharge opening.