The loader repair company will let you know the common high temperature problems of loader in summer. In the summer, many loaders face the problem of high engine temperatures. The high temperature of the engine will inevitably affect the normal operation of the loader, which will not only delay the construction period, but also delay the engine itself. Huge damage. Today, let's talk about the high temperature of the loader engine!
To raise the high temperature of the loader, many users first think that the water temperature is very high. Yes, high water temperature is a problem faced by many loaders in summer. At the same time, engines with high water temperatures usually have high oil temperatures because antifreeze and oil circulate in one engine.
Why is the water temperature and oil temperature of the loader engine high?
The high temperature of the engine has many reasons. We analyzed the two processes of heat generation and heat dissipation: the heat of the engine is generated by the combustion of cylinder fuel and the friction of moving parts. The friction of moving parts is caused by the lubrication of oil, and the coefficient of friction is small. Also small, the main heat comes from fuel combustion.
Water temperature and oil temperature are high and harmful
The water temperature of the loader is too high for many reasons. The above are just some common reasons. At the same time, the high water temperature of the engine will cause the oil temperature to rise rapidly, because the antifreeze cannot exchange the heat of the engine in time, and the oil moves directly with the engine. The contact of the components heats up quickly, the viscosity of the high-temperature oil decreases, the lubrication effect is poor, and the wear of the moving parts of the engine increases. In severe cases, even the engine retains the liner and the stuck cylinder will fail, which is very harmful to the engine.
If I find the engine is hot, what should I do?
If the loader finds high temperature during operation and the water temperature exceeds the safety line, the engine should be cooled and the loader should be stopped immediately. However, the engine should not be turned off. The engine can be cooled by:
1. Use "low speed, reduced load" to cool and adjust the throttle to the minimum. At this time, the engine load is small, the speed is low, and the heat generation is small, which can reduce the water temperature.
Engine water circulation system
2. Open the door of the loader engine radiator and increase the air inlet. However, it is forbidden to open the hood and maintain the normal air duct of the engine.
3. After the water temperature drops, check if the antifreeze is missing. If out of stock, please add antifreeze.
4. In-depth check the cause of high temperature of the engine, check whether the water tank, water pump, thermostat, etc. are not working properly. For the inspection of the water pump, you can observe the water tank opening to see if there is water flowing and rolling. You can also use a temperature measuring gun to check the temperature difference between the upper and lower parts of the tank. If the temperature difference is too large, it may block the water tank or the water pipe or the pump may not work properly.
Engine cooling system is mainly composed of water pump, water channel, thermostat, water tank, fan, etc. Under the action of the water pump, the antifreeze enters the engine water path, and then brings the heat of the engine back to the water tank for heat dissipation. Engine cooling.
Understand the heat dissipation process of the engine and analyze the causes of high temperature:
1. Blockage of radiator box: This is one of the most common causes of high temperature of the loader engine. The loader works outdoors for a long time, and dust, catkins and other debris can easily block the radiator, resulting in poor heat dissipation.
Water tank radiator blocked
2. The pump does not work or works poorly: When the pump is not working properly, the engine antifreeze circulation speed is small, and the engine heat cannot be replaced through the water tank in time, resulting in high temperature.
3. The thermostat is not working properly: the thermostat of the engine can adjust the large and small cycles of the antifreeze according to the temperature of the antifreeze. For more information about the thermostat, please click: When the thermostat fails, the antifreeze may not be converted into a large circulation, resulting in high water temperature.
Engine thermostat
4. Water blockage: This kind of fault occurs in the engine equipped with water tank running water. Tap water contains various impurities. It is easy to block the waterway, the water pipe and water tank are used for a long time, which affects the water circulation and generates high temperature.
5. Abnormal circulation of air duct: Air duct is a problem that many users tend to ignore. The engine fan sucks cold air from the water tank, blows it to the engine, and then flows out from the air outlet above the engine. When the engine is taken away, some of the engine's heat is taken away. When the cover is not well sealed, the hot air can easily stay in the engine compartment to form vortex , Which will affect the heat dissipation of the engine and generate high temperature.
6. Check if the fan is damaged. Check the tightness of the cooling fan driven by the belt.
The high temperature of the summer loader is a common phenomenon. Most of the high temperature of the loader is caused by poor heat dissipation. The most common cause of poor heat dissipation is the clog of the water tank. Many users do not check the water tank when the engine is working normally. It is a bad habit to wait until the engine is hot. This is a bad habit. As a key part of engine cooling, the water tank should be checked frequently to remove impurities in time. Adjust the falling radiator and protect your loader so that the loader can be used normally in summer.
