What is the reason for the high temperature of freight cars?
1, water pump
Check whether the water pump belt and the cooling fan belt are too loose. If the belt is too loose, there will be high temperature. If it is broken, replace it with a new belt in time to prevent the car from breaking down on the road. If you can change it yourself, you can bring a new spare in the car. Check the pumping effect of the pump and observe whether the water circulation is normal.
2. Thermostat
Remove the thermostat, check the thermostat, put some water on yourself, heat it, and put the thermostat and water thermometer in. Usually, the thermostat is fully open at about 82 degrees.
3. Water tank
That is, the radiator, check whether the surface of the water tank is blocked and there are many catkins. You should choose to clean the water tank after catkins are finished every year, and ask professionals to open it when necessary. However, if the water tank is used for several years and water is often added, the effect is not good after cleaning.
Extended data:
In addition to the above, the abnormal air guide and cooling system is also the cause of high temperature. The engine is damaged by air-cooled air ring, the barrier material is aging and falling off, and the air convection around the water tank causes high temperature. This problem is easily overlooked, but it is often encountered in actual maintenance. The engine is too dirty and greasy, please cherish your mount and take a bath in time to cool down.
Precautions for driving trucks in hot summer:
1, common sense of safe driving
Before driving in summer, drivers must ensure adequate rest and sleep, maintain abundant energy, and it is strictly forbidden to drive trucks with fatigue. Driving in hot weather should be controlled to avoid driving at high speed for too long, so as not to cause the engine or tire temperature to be too high.
2. Avoid excessive engine temperature.
When driving a truck in hot weather in summer, always pay attention to the change of water thermometer, generally not exceeding 95℃. If the temperature is too high, you can lift the hood for ventilation and heat dissipation.
After the temperature drops, check whether the engine cooling system is short of water and the reason for the high temperature. When the coolant boils due to engine overheating or water shortage, stop the engine to run at idle speed. When the temperature drops, turn off the engine, and then open the radiator cover with cotton yarn or gloves to prevent the driver's hands and face from being burned by boiling cooling water.
3. Observe the tire temperature.
It is not advisable to drive for a long time in summer. After driving for a certain distance or every 2 hours, check the tire temperature when stopping properly. When it is found that the tire pressure rises due to overheating, you should try to park your car in the shade or under the shade to let the tire naturally cool down and depressurize. It is not allowed to deflate or pour cold water to reduce tire pressure and temperature.