Semi-trailer seasonal maintenance precautions Engine oil is particularly important. Most of our car owners perform maintenance based on the mileage of their semi-trailers. Today, the editor may overturn our traditional cognition. When the cold and hot are replaced, it happens to be the spring and autumn seasons. For some car owners, even if the prescribed maintenance mileage is not reached, they still need to maintain the semi-trailer. Especially in northern China, car owners with lower winter temperatures should pay special attention. Some people may ask why maintenance is required even if the mileage is not reached. The main secret lies in the engine oil. We may not notice that no matter what brand of engine oil, there will be some labels on the packaging barrel. For example, 5W/40, 0W/30, 10W/30, etc. These labels are directly related to the change of seasons. The W in the label represents the abbreviation of winter. The smaller the number before W, the smaller the low-temperature viscosity, the better the low-temperature fluidity, and the lower the applicable temperature. The numbers behind are usually: 20, 30, 40, 50. The larger the number, the greater the viscosity.
The low temperature resistance of 5W engine oil in winter can reach about minus 30 degrees Celsius, and the low temperature resistance of 0W engine oil can reach about minus 40 degrees Celsius. These two numbers can basically meet the low temperature conditions in most parts of China. However, there are some extremely cold areas in Northeast China, where the low temperature can usually reach minus 30 degrees or lower. This is why the Komi Trailer Service Network reminds some car owners in cold areas of Northeast China to re-maintain their cars at the beginning of the article. If the last time you changed the engine oil, the oil with a label of 5W or 10W must be replaced again, otherwise the poor fluidity of the oil in winter will cause serious wear and tear on the engine of the semi-trailer and shorten its service life.
In addition to the engine oil, the interior of the car must be cleaned after entering autumn. Because the summer climate is hot, car owners often open the windows to cool down, because the air quality is getting worse and worse, and dust is flying everywhere. So there will be a lot of dust in our car. High temperatures in summer can easily breed bacteria, so it is necessary to do a thorough cleaning in the car in autumn. In this regard, the Komi Trailer Service Network has summarized several places that need to be cleaned for us. Carpets are the most likely places for bacteria to breed. You can brush all the carpets in the car with foam cleaners, and basically restore them to the appearance of a new car. In addition to low carbon, there are also dashboards, steering wheels, center consoles, seats, etc.
These positions can basically be wiped with a semi-dry wet cloth. Several aspects of maintenance and maintenance of semi-trailer engines:
1. Check the height of the lubricating oil: Check the oil level to make the semi-trailer in a flat position and start the engine.
2. Oil change: When changing the engine oil, the heating oil pan should be released, and the waste oil should be coarsely filtered and finely filtered. If the magnetic iron absorption drain plug is used, it should be removed.
3. The cleaning method of the oil pipeline is: release the waste oil, enter the engine oil pan by injecting the diluted filter quality oil or diesel fuel, the amount of which is equivalent to 60%-70% of the capacity of the standard oil pan in the area, and then idle the engine for 2-3 minutes, and then wash the oil network.
4. Check the oil pressure: During normal operation, the oil pressure should generally be 196-392KPA. If the oil pressure is abnormal, the cause should be found out in time and eliminated.
5. Oil filter, cleaning
6. Crankcase ventilation system cleaning
7. Bolts and pipe fittings strictly control all parts of the lubrication system, and the bolts, pipe joints and different parts of the lubrication system should not be screwed and leaked, and should not be piped to ensure that the circuit of the lubrication system is unobstructed and blocked.
Therefore, we should pay attention to prevention and maintenance measures in daily life, otherwise it will become a major safety hazard in traffic.