Necessary excavator maintenance technology for excavator technicians?

More and more excavator masters pay attention to the maintenance of excavators, because it is inevitable that there will be no problems or failures during the operation of excavators. As an excavator technician, if you can't diagnose your own excavator, you can only say that you are not an excavator technician.

Moreover, because most of the world uses second-hand excavators, excavators will inevitably bend when overloaded.

Let's talk about how excavator maintenance experts can eliminate the fault of excessive engine temperature:

First, "look"

If the engine temperature is too high or the temperature indicator is flashing all the time, stop and check whether the cooling water in the water tank is normal and whether there is leakage in the water tank, water pipes and connectors. If no abnormality is found by visual inspection, the cooling water can be replenished as needed, and then the work can continue. If the temperature is still too high after working for a period of time, the parking inspection shows that the cooling water is greatly reduced, which is mostly due to sand holes or perforations in the water jacket of the cylinder block. After this kind of fault is discovered, it should be repaired and should not be taken lightly.

Second, "touch"

When the engine temperature is too high, you can judge the fault by touching the temperature of the upper pipe and the underwater pipe by hand. If the temperature difference between the two water pipes is large, it can be judged that the thermostat is not working. If you can't buy accessories for the time being, you can remove the thermostat for emergency and replace it as soon as you have accessories.

Third, "release"

If there is air in the cooling system, air resistance will be formed, resulting in poor circulation of cooling water and excessive engine temperature. You can deflate the air in the following ways: let the engine run at high speed, and gently unscrew the water tank cover until the air is just released. At this time, a part of cooling water will flow out with the air, and this will be repeated many times until the air is exhausted (at this time, the temperature of the upper and lower pipes will be obviously different when touched by hand). After troubleshooting, the cooling water should be replenished in time.

Fourth, "rush"

If dirt adheres to the radiator, it will affect the heat dissipation effect over time, resulting in high water temperature. You can blow the radiator grille with compressed air first, and then rinse it with water pipes.

Generally speaking, there are four main steps to solve the overheating problem of excavator engine: "one look, two dies, three sides and four strokes". As long as you master these four steps, you can reasonably solve the problem of overheating of excavator engine!

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