What should I do if the water temperature of Sumitomo 60 excavator is high?

The main reason for the high water temperature of Sumitomo 60 excavator is:The following reasons and solutions also apply to situations where the water temperature is high for other brands of excavators. In the previousWater tank leakage causes excavator water temperature high alarmIn one article, we discussed the situation where the water temperature increases due to a leaking water tank.
1. Insufficient coolant. Solution: Add coolant to the specified level.

    2、Sumitomo 60 excavatorThe looseness of the engine belt, due to the slipping of the belt, directly affects the speed of the water pump and fan, thereby affecting the cooling of the engine and causing high temperatures. Solution: Adjust the tightness of the belt. It is correct to press the belt with your fingers and ensure that it does not sag more than 12mm. If adjusted too tightly, it will damage the water pump.

3. The malfunction of the water pump directly causes high engine temperature due to damage to the water pump. Inspection method: Turn off the engine and open the radiator cap. When starting the engine and running it at medium speed, check if water is circulating. If the coolant in the water tank is not flowing while the thermostat is normal, it indicates that the water pump may be damaged. Attention: If the water pump is damaged and the water temperature rises significantly by about 100 to 105 degrees, the water temperature will not decrease during idle.

4. Damage to thermostat, inspection method: Remove the thermostat and place it in a heated water container at approximately 60 to 70 degrees Celsius. The thermostat will automatically open. If it does not open, it indicates that the thermostat is damaged. Solution: Replace the thermostat.

5. Is the fan damaged. Solution: Replace the fan.

6. The load is too heavy and prone to high temperatures. such asexcavating machineryThe engine operates under heavy load conditions, such as rock excavation, adding large buckets, and excessive adjustment of hydraulic pump flow. Solution: Adjust to the standard value.

7. The filling around the radiator, commonly known as sponge, is damaged and removed. If removed, it can cause the engine's hot air to reflux, and the air sucked in by the fan will become hot. Solution: Repair the sponge around the radiator to prevent hot air from flowing back.

8. Excessive dirt inside the radiator or blockage of the radiator, as well as excessive dust and blockage of the filter mesh outside the radiator, can cause the engine fan to be unable to draw in fresh air and lead to high temperatures. Solution: Remove the radiator and clean the inside of the water tank. If the outside of the water tank is blocked, simply clean the outside. Note: I encountered a filter outside the radiator, two-thirds of which were blocked by dust, and the high temperature of the water tank reached 90 to 105 degrees. When the temperature was high, I would idle for a few minutes and the water temperature would return to normal. After working for 30 minutes to 1 hour, the water temperature would become high again. The reason is that two-thirds of the outside of the water tank is blocked, and cleaning the outside of the water tank is sufficient. Solution: Clean the inside of the radiator.