Precautions for maintenance of semi-trailer during season change, engine oil is particularly important

Precautions for semi-trailer maintenance during changing seasons Engine oil is particularly important. Most of our car owners maintain their semi-trailers according to the number of miles they travel. Today, the editor may overturn our traditional cognition. The replacement of hot and cold coincides with the spring and autumn seasons. For some car owners, they still need to maintain their semi-trailers even if they have not reached the specified maintenance distance. Especially in northern China, the winter climate is colder. Low riders 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 oil. We usually don't notice the maintenance of semi-trailers. No matter what brand of engine oil it is, there will be some labels on the packaging barrel. For example 5W/40, 0W/30, 10W/30 and so on. Originally, these labels were directly related to the change of seasons.

The W in the label stands for 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 Z 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 can reach about minus 30 degrees Celsius in winter, and the low temperature resistance of 0W grade engine oil can reach about minus 40 degrees Celsius. These two grades can basically meet the low temperature conditions in most parts of China. However, there are some extremely cold areas in Northeast China, and the low temperature can usually reach minus 30 degrees or lower, which is why Kaomi Trailer Service Network reminded some riders in the cold areas of Northeast China to re-maintain their cars at the beginning of the article. If the engine oil marked 5W or 10W was changed last time, it 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 the service life.

In addition to engine oil, the interior of the car must be cleaned after autumn. Because the climate is hot in summer, car owners and friends often drive 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. The high temperature in summer can easily cause bacteria to multiply, so it is also necessary to carry out a general cleaning of the car in autumn. In this regard, the Kaomi Trailer Service Network has summarized several places that need to be cleaned for us. Carpet is the place where bacteria are most likely to breed. You can brush all the carpet in the car with a foam cleaner, and you can basically restore the appearance of a new car.

In addition to low carbon, there are instrument panels, steering wheels, center consoles, seats, etc. These positions can be wiped with a semi-dry damp cloth.

Several aspects of semi-trailer engine maintenance and maintenance:

1. Check the level of lubricating oil: check the oil level should make the semi-trailer in a flat position, and start the engine.

2. Oil change: To change the engine oil, the heating oil pan should be released, and the waste oil should be coarsely filtered and finely filtered. The oil drain plug should be cleared if it is absorbed by a magnetic iron.

3. The cleaning method of the oil pipeline is: release the waste engine oil, enter the engine oil pan and inject petroleum or diesel fuel of the quality of the diluted filter, the quantity of which is equivalent to 60%-70% of the capacity of the standard oil sump in the area, and then 2 - 3 minutes of engine idling, 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 ruled out.

5. Oil filter, cleaning

6. Crankcase ventilation system cleaning

7. Bolts and pipe fittings are strictly controlled and all parts of the lubrication system. For bolts and pipe joints, different parts of the lubrication system should be screwed without leaking, and should not be piped to ensure that the circuit of the lubricating oil system is unblocked due to conflict and blockage.

Therefore, we should pay attention to prevention and take maintenance measures in our daily life, otherwise it will become a major traffic safety hazard.