Why Does The Excavator Have High Oil Temperature And High Water Temperature

The excavator’s high oil temperature and high water temperature is normal to excavator drivers, so why is it happen and how to solve it?

The excavator’s high oil temperature and high water temperature is normal to excavator drivers, so why is it happen and how to solve it?

Why Does The Excavator Have High Oil Temperature And High Water Temperature

First, the water temperature is high

The water tank is cooled. This cooling method is air-cooled, that is, an engine-driven fan. Therefore, the reason for the high water temperature is:

1. The thermostat is stuck and cannot be opened. At this point, the water can only pass through a small cycle and cannot pass through the radiator.

2, the inside of the water tank is dirty, the water is not smooth, this can use the temperature gun to detect the temperature above and below the water tank, blocking the temperature under the water tank will be very low.

3. The fan speed is not enough and the clutch is faulty.

4. Is the rubber strip around the heat sink damaged? At this time, eddy current is generated, and the hot gas is circulated, and the cooling effect cannot be achieved.

5, everyone is easy to ignore, that is to say, no false positives, the sensor is broken, it is possible, the computer is very wood, just look at the data does not see the truth.

Second, the oil temperature is high

High oil temperature is similar with high water temperature. There are also large loops and small loops. It is not through a thermostat. He has an oil return check valve. If this valve is stuck, the temperature of the oil will be high and the others will be the same as the water temperature.

Of course, large excavators are driven by fan pumps to regulate the speed of the fan motor. There is also an overflow device. Generally, the oil temperature is high. Checking these places can be solved.

If the engine oil temperature and water temperature are too high at the same time, if the amount of oil and water is insufficient or insufficient, first lower the oil temperature and then lower the water temperature.