During the process of using the excavator, many drivers have encountered "the problem of too high oil temperature", and even because of the high oil temperature, "the machine is thermally deformed, and the moving parts with different thermal expansion coefficients in the hydraulic components change due to their cooperation clearance. Small and stuck, causing malfunctions, affecting the transmission accuracy of the hydraulic system, resulting in poor working quality of components. "The analysis of a series of problems:
1. Excavator hydraulic oil has not been replaced for too long
2. The hydraulic pump malfunctions
3. Computer board failure or incorrect setting
4. The volume of the oil tank is too small, the heat dissipation area is not enough, no oil cooling device is installed, or the capacity is too small although there is a cooling device.
solution:
1. If the hydraulic oil of your excavator is not replaced after more than 6000 hours, you must replace the hydraulic oil
2. Maintenance and debugging of hydraulic pump by professionals
3. Reset or repair the computer board
4. Install a cooling device that matches the capacity of the tank.
