1. Check the radiator. Excavators work in harsh environments all year round, so there will always be a lot of dust and small debris blocking the radiator of the hydraulic radiator and the water tank, especially the hydraulic radiator has a small amount of oil leakage. It is simply blocking the radiator at the rear of the oil tank, so everyone should pay attention to see if there is any hydraulic radiator oil leakage.
2. Check the engine cylinder gasket. I don’t know if you noticed what water is in the water tank when it circulates. It may be a small bubble. If this is the case, there is a problem with the cylinder head of the engine.
3. Check the pump to start the machine, and then squeeze the water pipe with your hand. If you feel very strong when squeezing, it means that the pump is not a problem. If it is easy to squeeze, the pump circulation is not good!
4. Check the water tank cap. Is the water tank cap broken? This will also cause the water temperature to rise. Because the water tank cap is broken, it is easy to cause water inflow when the water circulates. So the water temperature will be higher!
5. Check the thermostat. Is the thermostat opened a small amount or stuck? It is usually removed in summer!
6. Check the fan fan is high speed and can’t keep up with the engine pulley. This is also the reason why the water temperature rises easily! Check the oil pump.
7. Check the flow of the oil pump. Of course, it is now a computer-controlled machine. There are also oil pumps like the oil pump is too large or too small, or the fuel injection angle is wrong. The water temperature is also high. However, this phenomenon is very rare.
