1. Cautiously handle "boiling" When the cooling water is "boiling", handle it carefully. The correct method is to run the engine at a medium speed, open the radiator cover, release hot air, and slowly add cold water after cooling down. When opening the radiator cover, the operator should stand in the upwind position and do not face the water filling port to avoid being burned by the hot water spray.
2. Keep the cooling system clean Before the summer, the cooling system must be thoroughly descaled and cleaned, so that the water pump and radiator pipes are unblocked to ensure the normal circulation of cooling water. In addition, weeds attached to the surface of the radiator should be removed in time.
3. To prevent water leakage, the water leakage of the cooling system mostly occurs at the water pump shaft sleeve. At this time, tighten the water seal compression nut properly. If it is invalid, it indicates that the packing has failed and should be replaced in time. The filler can be wound with asbestos rope coated with graphite powder.
4. Pay attention to the tension of the belt. The fan belt is too loose and easy to slip, which will reduce the speed of the fan and water pump, and the wind will be insufficient; if the fan belt is too tight, the bearing will be overloaded, which will increase wear and power consumption. The general requirement is: when pressing the middle of the belt with your thumb, the belt sag should be in the range of 10 mm-15 mm. When it is too loose or too tight, it should be adjusted in time.