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How to prevent frost in vehicles in winter, what measures can be taken to prevent it in advance? In the cold winter, the fluidity of the fuel deteriorates, the viscosity of the lubricating oil increases, and the cooling water freezes easily. Especially diesel vehicles that are afraid of freezing, such as city buses, long-distance buses, and postal logistics vehicles, are easily forced to “break down†during the cold season. Therefore, winterization of vehicles will be very important.
1. Timely replacement of lubricating oils The viscosity of common lubricating oils increases as the temperature decreases, resulting in poor fluidity. As a result, the frictional resistance increases when the machine moves, and the cold starting is often caused during the starting of the car. It may even cause flaring and holding Other accidents. Therefore, in the winter, oils in oil pans, air compressors and hub bearings should be replaced with lubricants used in winter; gear oils in transmissions, transfer cases, differentials, and steering gears should be changed. Gear oil used for winter use should be replaced with a low freezing point winter oil such as diesel number 10 for diesel vehicles in cold regions.
2, timely filling, replacement of antifreeze In the engine to add the right amount of antifreeze, you can also play a role in keeping the cold, but before using antifreeze, first of all to the original engine antifreeze cleared, and then clean the waterway, the best Fill the antifreeze specified by the manufacturer to prevent the water channel from decaying in the future. In addition, the amount of antifreeze should be added, and must not be ignored. Open the hood on a smooth road, it is easy to see the location of the antifreeze tank, and the antifreeze scale is very obvious. However, wait until the engine stops and completely cool down.
3, thoroughly clean the fuel tank For diesel vehicles, in order to antifreeze, the best way is to add a low freezing point diesel, in order to improve its cold resistance. In order to ensure the purity of diesel oil and reduce the freezing, it is necessary to clean the fuel tank frequently. It is generally required to clean the tank once every 20 days. The brush can not be used when cleaning, and only the gasoline or diesel can be used for cleaning. If the paper filter element inside is found to be deformed or bad Wear new parts when worn. Filter seat pressure regulator valve can not be cleaned with gasoline, so as not to damage the pressure regulating valve seal aprons, if conditions, can also install diesel fuel tank antifreeze device, fuel tank insulation cover antifreeze, so that diesel vehicles in the winter energy-saving Start and drive normally.
4, to avoid the radiator ice resistance water as the cooling medium of the engine, the winter ice radiator is the most likely phenomenon. In order to avoid ice resistance, the driver can take the following measures.
Start the engine first and add cooling water. It is more difficult for the engine to start during the severe winter season. Sometimes, if the engine cannot start up quickly after adding cooling water (preferably using hot water), the cooling water will freeze. Therefore, you should start the engine and warm it up to 40°C to 50°C, then turn off the heat and add water.
5, seasonal maintenance should be completely seasonal maintenance, if not thoroughly cleaned filter, oil pan, transmission, will cause different brands of lubricating oil mixed, reduce the lubrication effect. In addition, the oil radiator radiator switch and the preheat valve on the intake and exhaust pipes should be placed in the “winter†position; the performance of the thermostat should be re-tested in the winter to meet the winter technical requirements; the carburetor acceleration pump and the piston The stroke should be increased; the battery electrolyte density should be 0.03-0.06g/ml greater than summer.