1. Prohibit crossing the iron.
2. Prohibit starting and stopping with materials.
3. It is prohibited to operate the machine beyond the rated current and at low voltage.
4. It is prohibited to continue running the machine when there is abnormal noise.
5. It is prohibited to inspect and adjust the machine while it is running.
6. Prohibit machine eccentric feeding.
7. It is prohibited to enter large pieces of material into the crushing chamber (exceeding the maximum feeding size specified in the instruction manual).
8. It is prohibited to adjust the jumping of the ring. When jumping, the discharge port should be enlarged.
9. It is prohibited to run cone breakage when the locking nut of the adjustment seat is not tightened.
10. It is prohibited to adjust the discharge port with materials.
11. It is prohibited to run a cone when the oil level in the lubrication station is low.
12. It is prohibited to run cone breaking when the lubricating oil temperature is below 25 ℃.
13. It is prohibited to run a cone breaker when the return oil temperature of the lubricating oil is higher than 55 ℃, but the oil pump should be kept running.
14. It is prohibited to run the cone when the lubricating oil filter is blocked.
15. It is prohibited to break the cone during operation when the alarm light on the lubrication station is on.