The cone crusher is one of the equipment in the production line of crushing and sand making. It is often used to process materials with higher hardness and is used as a medium and fine crushing equipment. The machine adopts a hydraulic system, has **, and a high degree of intelligent operation, which reduces the degree of dependence on manual labor. However, it is still inevitable that some faults will occur in production. Let us introduce the causes of damage to the hydraulic system of the cone crusher.

　Generally speaking, there are two main reasons for the damage to the hydraulic system of the cone crusher. One is that the oil temperature is too high, and the other is that air enters. The specific reasons for these two aspects are as follows:

　1. Reasons for excessive oil temperature

　If the following situations occur during the production or parameter setting of the equipment: unreasonable hydraulic system settings; improper oil selection; impurities and dirt entering the oil tank; low oil level; oil filter blockage; serious wear of parts; high ambient temperature, etc., the oil temperature will be too high, which will cause certain damage to the hydraulic system;

　2. Reasons for air entry

　If air enters the cone crusher during use, the volume of air entering the oil will change with the changes in system pressure and crusher temperature, and "emulsification" will occur, hindering the movement of the liquid flow. These phenomena are manifested in production as the crushing operation sping and starting, slow speed, and insufficient power.