Explanation:
The high temperature of the excavator is also called "the high temperature of the excavator and the high temperature of the hydraulic oil of the excavator". It means that the hydraulic oil temperature of the excavator is over 70 degrees C (due to the difference in the standard of the oil temperature and height of the excavator brand, some of the oil temperature standard is between 60-90 degrees C), and the oil temperature will appear to the alarm phenomenon.
Fault classification:
1. The temperature of the working environment is high.
2. The operating environment is at room temperature but the oil temperature is high.
The reason for the high temperature of oil is to be excavated.
1. The working environment of the excavator is too high. Sometimes, if the working environment is too high or there is a heat radiation source near the tank, it may cause a high temperature phenomenon. Therefore, the work needs to avoid the heat source as much as possible in the high temperature condition.
2. The heat dissipation area of the hydraulic tank of the excavator is not enough, the heat dissipation is not timely, the excess heat can not be discharged in time, which leads to the high temperature phenomenon. Therefore, the capacity of the general excavator tank should be selected or added to the cooling device of the oil temperature according to the 2-6 times of the pump flow.
3, we should choose the hydraulic oil with different types of viscosity according to the different working environment. For example, when in winter, we need to choose a larger viscosity of the oil, in order to ensure the normal work of the excavator.
4, the hydraulic system failure of the excavator. For example, the abnormal overflow of the safety valve will cause the abnormal rise of the oil temperature. The long time overload operation of the engine and the heavy load of the hydraulic pump will also show the phenomenon of the high oil temperature.
5. The hydraulic oil of the excavator is deteriorated. Use regular hydraulic oil to clean the oil circuit.
6, there is a problem of lack of coolant or excavator cooling system.
7. The oil content of the excavator tank is insufficient and the oil level in the tank is too low.
8. High water temperature of excavators may also cause high oil temperature of hydraulic oil of excavators.
