Because of the construction of large-scale projects in the city, the consumption of concrete can not be satisfied by manual mixing. More and more enterprises have begun to do concrete mixing business. An indispensable vehicle for these enterprises is the concrete mixer. What should be paid attention to when maintaining the concrete mixer?

　　一、忌用嘴吸油管。柴油不仅易燃易爆，而且有毒。特别是含铅柴油，会损害人的神经系统、消化道和肾脏。另外，柴油中还含有高浓度的硫化物，由于硫化氢也有一定的毒性，若将柴油吸入肚里，会导致中毒或死亡。万一吸入，应逼迫自己呕吐并及时到医院。

　　1、 Do not use the nozzle to suck the oil pipe. Diesel oil is not only flammable and explosive, but also toxic. Especially the leaded diesel oil will damage the nervous system, digestive tract and kidney. In addition, diesel oil also contains high concentration of sulfide, because hydrogen sulfide also has certain toxicity, if diesel oil is inhaled into the stomach, it will lead to poisoning or death. In case of inhalation, you should force yourself to vomit and go to the hospital in time.

　　二、忌不注意工作场所的清理。在关闭发动机盖或其他总成盖时，应检查工具、抹布和拆下的零件等物品是否遗忘，待确认无误后，才可以关闭。

　　2、 Avoid not paying attention to the cleaning of the workplace. When closing the engine cover or other assembly cover, check whether the tools, rags, removed parts and other items have been forgotten, and only after confirming that they are correct can they be closed.

　　三、忌损伤自上料混凝土搅拌罐车。制动液对自上料混凝土搅拌罐车的漆膜有损害作用，它能很快地溶解漆膜。制动液对眼睛是有害的，如果溅入眼睛，必须立即用清水冲洗干净。

　　3、 Do not damage the concrete mixer. Brake fluid is harmful to the paint film of concrete mixer, it can dissolve the paint film quickly. Brake fluid is harmful to eyes. If it splashes into eyes, it must be washed with clear water immediately.

　　四、忌烫伤。刚刚熄火的发动机，由于发动机的各部件温度都比较高，必须小心接触，以防烫伤。如果发动机温度高，千万不要取下水箱盖或松开放水开关，以防烫伤。

　　4、 Avoid scalding. For the engine that has just been flamed out, due to the high temperature of all parts of the engine, it must be contacted carefully to prevent scalding. If the engine temperature is high, do not remove the water tank cover or release the drain switch to prevent scalding.

　　五、忌失火。在保养自上料混凝土搅拌罐车时，经常需要使用油料、清洗剂等易燃、易爆物品，此时千万别忘了消防措施，备好灭火器，以防万一。在油箱和蓄电池附近，不要吸烟，因为油箱逸出的可燃气体和蓄电池逸出的氢气是很容易被引燃的。

　　5、 Avoid fire. When maintaining the concrete mixer, it is often necessary to use oil, cleaning agent and other inflammable and explosive materials. At this time, do not forget the fire-fighting measures and prepare the fire extinguisher in case. Do not smoke near the fuel tank and battery, because the combustible gas escaping from the fuel tank and hydrogen escaping from the battery are easily ignited.