The summer is hot and hot. In order to ensure the safe operation of the machine and avoid the machine failure and shutdown caused by high temperature. In addition to the normal maintenance of the machine, special attention should also be paid to the inspection of the cooling system. This article will explain the points that should be paid attention to in the cooling system for reference only.
The most important thing is to check whether the antifreeze solution has expired and needs to be replaced. Antifreeze is not only used in winter, but throughout the year. Antifreeze has two characteristics, including low freezing point and high boiling point. Therefore, the normal operation of the machine cooling system can be ensured not only in winter. In summer, it can also prevent the cooling water from boiling and prevent the engine from overheating. In addition, antifreeze usually has the function of rust prevention and corrosion prevention. Because there are metallic materials and non-metallic materials in the cooling system. The anti rust and anti-corrosion characteristics of antifreeze can slow down the aging of the whole cooling system. In addition, scale is often generated in the cooling system, and the scale will cause blockage of the circulating pipe, which will lead to high temperature of the engine. Antifreeze has the function of preventing scale, thus reducing this hidden danger. The concentrated antifreeze contains effective anti rust additives to protect the engine and radiator. But the sustainability of these additives is limited. Therefore, the antifreeze should be replaced every 2000 hours or 1 year. Note that antifreeze of different brands shall not be mixed during replacement. Any antifreeze or additive mixture produced by different manufacturers may have a negative impact on the machine. The antifreeze temperature is still very high just after the engine is shut down. Before the antifreeze is cooled, do not open the radiator cap directly and quickly. Slowly open the radiator cap to release the internal pressure. Do not add antifreeze to the engine that is working or has just finished working but still has a high temperature. This may cause cracks in the engine cylinder block and cylinder head.
