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First, avoid running the engine for a long time in an unventilated garage. The exhaust gas from the engine contains carbon monoxide , which is a poisonous gas that cannot be seen or smelled. Being in low concentration of carbon monoxide gas for a long time can cause symptoms such as headache, shortness of breath, nausea and vomiting, weakness and dizziness, psychological confusion and even brain damage. If the engine is started in a garage, the garage door should be opened or the exhaust device should be opened so that the exhaust gas can be discharged from the garage at any time. Even when working in the open, do not stay near the exhaust pipe of a working engine for a long time.
Second, avoid mouth sucking pipe. Gasoline is not only flammable and explosive, but also toxic. Especially leaded gasoline can damage the nervous system, digestive tract and kidneys. In addition, gasoline also contains high concentrations of sulfides. Because hydrogen sulfide is also toxic, inhaling gasoline can cause poisoning or death. In case of inhalation, you should force yourself to vomit and go to the hospital for treatment in time.
Third, avoid carburetor cleaning agent. Most carburetor cleaners contain methyl chloride, aromatics, and ethanol. These substances are all toxic. Therefore, it is dangerous to inhale these substances or splash them on the skin and eyes .
Fourth, avoid mechanical injuries. There are various aspects related to the maintenance of the car. When performing maintenance operations, obvious operating signs should be set to prevent other people from being injured by mistake. When starting the car, pay attention to the gear position of the transmission to prevent accidental injury to the car. When working under the hood, allow others to leave the cab to prevent accidental engine rotation or other manipulators' actions causing accidental injury. If you need to work under the car, you should set up obvious signs and cover the car with a cover. When using a jack to support the truck, the jack should be placed stably. Before driving, you should prepare driving tools (driving stools). It is forbidden to use fragile objects such as bricks. When installing the assembly, do not try to test the screw holes, keyholes, etc. by hand to avoid breaking your fingers. When testing the engine, do not work under the car.
Fifth, avoid fire. When maintaining a car, you often need to use flammable and explosive materials such as oil and cleaning agents. At this time, don't forget the fire protection measures and prepare a fire extinguisher just in case. Do not smoke near fuel tanks and batteries, as flammable gases escaping from fuel tanks and hydrogen escaping from batteries are easily ignited.
Six, avoid burns. The engine that has just turned off, because all parts of the engine (water tank, exhaust pipe, power steering fluid tank, spark plug, etc.) are relatively high temperature, you must touch them carefully to prevent burns. If the engine temperature is high, do not remove the water tank cover or loosen the water switch to prevent burns.
Seven, avoid damage to the car. The brake fluid has a detrimental effect on the paint film of the car (including the paint film of leather shoes), and it can quickly dissolve the paint film. Brake fluid is harmful to the eyes. If splashed into the eyes, they must be rinsed with water immediately.
Eight, do not pay attention to the rotating parts and car road test protection. When the engine is running, pay attention that hands, clothing and tools must leave the rotating fan and fan drive belt (it is best to remove items such as rings, watches and ties). During the test run, the condition of each part of the car should ensure safe parking and effective steering. Cars tested on the road must have obvious test signs. When commissioning, personnel must ride safely and carry out in a dedicated test lane.
Nine, do not pay attention to cleaning up the workplace. When closing the engine cover or other assembly covers, check whether tools, rags, and removed parts are forgotten, and wait for confirmation before you can close them.