在低温条件下,发动机启动困难、压路机驱动能力下降、机件磨损加剧甚至出现冷脆损坏。通常可采取如下应对措施: (1)预热发动机预热发动机的最简单方法是,将加热至85℃的水注入冷却系统,并让冷却系统边加水边从排放孔放水,待流出的水温达到30～40℃时拧上放水塞并停留10～15 min,直到发动机水套里的水温与气缸体温度趋于一致时才启动发动机。还可以将曲轴箱中的机油放出来,经加热后再注入,以增强润滑效果和减少曲轴运转的阻力。预热机油时一定要注意,不能在操作过程中造成新的机油污染。 In low temperature conditions, the engine starts difficult, the roller drive capacity decreased, the wear and tear of the machine even worsened cold brittle damage. Generally, the following measures can be taken: (1) Preheating the engine The easiest way to warm up the engine is to inject water heated to 85 ° C into the cooling system and allow the cooling system to drain water from the discharge ports while adding water, 30 ~ 40 ℃ screwed on the drain plug and stay 10 ~ 15 min, until the water temperature in the engine water jacket and cylinder body temperature to coincide when the start of the engine. You can also release the crankcase oil, heated and then injected to enhance the lubrication effect and reduce the resistance of the crankshaft operation. Be careful when preheating the oil and do not cause new oil contamination during operation.