Excavator drivers and owners know that the main function of the excavator’s water tank is to dissipate heat, thereby reducing the temperature of the engine.

From the perspective of the structural principle, if the temperature of the excavator engine is very high, the thermostat will be turned on, and at this time, the water pump will pump water repeatedly, which will reduce the temperature of the excavator engine. (The composition of the water tank is a There are hollow copper tubes, high temperature water enters the water tank and is air-cooled and circulated into the engine water channel) to protect the engine.

We often find that the water tank of the excavator engine is often short of water. The water just added on the first day will gradually run out of water on the second day. No matter what, we can’t see where the problem is. It may be due to water leakage or other problems, so that most excavator drivers ignore this phenomenon and think that the excavator can work normally. It is wrong to have this idea.

In addition to the main water tank, there is also an auxiliary water tank. The function of this auxiliary water tank is that when the engine water temperature rises, the water in the water tank will flow into the auxiliary water tank due to thermal expansion and contraction, until the temperature drops. It will flow into the water tank again, and this process will not cause water shortage. When the water tank is short of water, the cooling capacity of the engine will be greatly reduced, and the ultimate goal of protecting the engine will be difficult to achieve. When this phenomenon occurs, it is necessary to check whether the auxiliary water tank is damaged or leaking.

Due to long-term work, scale will form in the water tank, which will reduce the heat dissipation capacity of the water tank to a certain extent, resulting in high temperature of the engine, suffocation of the engine and even boiling of the water. In this way, the engine is often injured, so we have to work every time. Check the heat dissipation capacity of the water tank, or replace it with the original pure antifreeze. The cooling effect of antifreeze is much better than that of water, and it is not easy to produce scale. It is necessary to use regular antifreeze. Do not mix water and antifreeze. , will increase the risk of tank clogging. If the water tank fails to dissipate heat properly, it is time to clean the water tank.

We turn on the drain switch of the radiator and unscrew the drain plug on the engine block to drain the liquid inside, then close the switch and install the plug, add water and some limescale cleaning agent to the radiator, the accessories store on the market It is generally available. The ratio of water and cleaning agent should be appropriate. Do not add too much. Too much will make it difficult to wash and increase the cleaning burden. Then start the engine to idle at a speed slightly higher than the idle speed, and when the water temperature reaches a green state, continue to run the engine for about ten minutes.

After the engine is turned off, the water switch and the cylinder block water block are turned on, and the cooling system is continuously flushed with water until the discharged water is clean. In order to avoid the scale of the water tank and reduce the heat dissipation effect of the radiator, and to ensure that the engine works within the normal temperature range, the antifreeze should be replaced once a year or 2000 hours. Antifreeze is corrosive when it reaches the operating temperature of the engine. In order to rust, corrode and freeze, please use the antifreeze produced by the original factory or a regular enterprise.