Driving and using engineering vehicles in hot weather will increase the potential safety hazards. Many unsafe factors are derived from the continuous high temperature. One of the reasons for the overheating of the vehicle system of the small concrete mixer is the hydraulic oil. Let's explain it.
If the viscosity of oil is too high, the loss of fluid pressure will be too large, which will be converted into heat energy, and the temperature rise will be too high; Too low oil viscosity will also cause large leakage and heat in the operating hydraulic pump and hydraulic components;
In addition, some defective oil fluids have poor viscosity temperature function, are easy to emulsify and produce cavitation, break bubbles, etc., which will cause partial high temperature at the high pressure of hydraulic oil and aggravate the wear of components. Therefore, hydraulic oil with appropriate viscosity is selected according to the load of the system and the requirements of normal operating temperature.
Select the hydraulic oil reasonably, especially the oil viscosity. If conditions permit, try to select a lower viscosity to reduce the loss of viscosity conflict.
There are impurities in the hydraulic oil caused by long-term use of hydraulic oil. The pollution of hydraulic oil accelerates the wear of internal parts or seals of hydraulic components such as motors, multiple directional valves, hydraulic cylinders, etc., and then causes the rise of hydraulic oil temperature. Solution Replace the hydraulic oil regularly.
Regularly check the hydraulic oil level in the hydraulic oil tank. Long term operation is partial. Always keep the hydraulic oil level within the normal oil level range, and then ensure the heat dissipation effect of the oil tank.
That's all we need to know about the excessive oil temperature caused by improper selection or poor oil quality of hydraulic oil for mixer trucks. If you have any questions, please come to our website http://www.zkzdsljbc.com Get to know!