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What are the use and maintenance methods - ɽk8𽺼

What are the use and maintenance methods

2021-12-16 14:49

(1) Safe storage

All tires should be stored in a cool, dry and dark room, avoiding the sun, oil, acids and hydrocarbons, which will erode the tires. Due to pressurization, liquid may enter the carcass layer through the inner air tight layer of the tire, which will cause sudden damage to the tire.

(2) Tire maintenance

Timely transposition of tires, selection of appropriate tread patterns, daily maintenance, regular inspection of tire pressure, timely repair after damage, and frequent excavation and removal of stones and foreign matters in tread patterns are important factors to prolong the service life of tires. After being used for a period of time, the tire tread wear will be greatly different due to the influence of road camber, braking and different tire assembly positions. Therefore, it is necessary to timely transpose and assemble, so that each tire can take turns at each position, and the load borne by each tire is roughly the same, To solve the problems of tire eccentric wear and prolonging service life. There are two common methods of tire transposition: "cross transposition" and "circular transposition". When the old and new tires are mixed, when the new tire is better, the new tire or better tire is fixed on the front wheel, and the old tire or retreaded tire is fixed on the rear wheel, the left-right shift, internal and external shift and other methods are adopted. When changing the original rolling direction after transposition, the tire shall be adjusted on the opposite side (i.e. adjusting the loading position and rolling direction). This is not only a measure to reduce or eliminate the eccentric wear and chamfer of the tire and excessive fatigue on one side of the shoulder, but also a way to prolong the service life of the tire and improve the retreading rate.

(3) Ensure standard air pressure

Master the inflation standard of tires and ensure that the tire pressure is at the specified value. High or low tire pressure will increase wear and reduce mileage. When the tire pressure is lower than the standard value, the wear of tire shoulder increases sharply; When the tire pressure is higher than the standard value, due to the reduction of the tire grounding area and the increase of the unit pressure, the wear in the middle of the tire tread increases. At the same time, the tire rigidity increases, the dynamic load on the wheel increases, and the carcass is easy to burst. The impact is more serious on uneven roads or high-speed driving.

(4) Control tire temperature

When the vehicle is running, the temperature in the tire increases due to deformation and friction. When it reaches more than 100 , the strength of the tire body is greatly reduced, which is very easy to cause delamination, blasting and other damage. The tire temperature is difficult to measure. It is usually determined according to the degree of tire pressure rise. The higher the tire pressure, the higher the tire temperature. When the ambient temperature is above 30 , the increase of tire pressure shall not exceed 20% of the inflation standard. Due to poor heat dissipation conditions, it is very easy to make the tire temperature exceed 100 . When driving at high temperature in summer, if the tire temperature is too high, stop in a cool place to cool down naturally. It is strictly prohibited to use cold water sprinkling, deflation and other methods to cool down and reduce pressure. Because pouring cold water will make the tire cool suddenly, and the shrinkage of each part is uneven, which is very easy to crack and affect the service life. When the weather is hot, if there is a road section that needs to wade on the way, you should also stop first to cool down, so as not to adversely affect the tires. If you deflate on the way, although the tire pressure decreases, the tire temperature does not decrease, but it destroys the original balance conditions. When you continue to drive, the deformation increases due to the decrease of air pressure, which will continue to increase the tire temperature on the original basis until the heat generation and heat dissipation of the tire are re balanced. At this time, the tire temperature is much higher than the original, Causing serious damage to the tire.

(5) Influence of driving habits on tires

Smooth start. Because the wheel suddenly rotates from a stationary state, there will be severe friction between the tire and the road, which will accelerate the wear of the tire crown. Drive at medium speed. According to the information, when the speed changes from medium speed to high speed, the tire mileage will be reduced by 15%. In addition, the higher the vehicle speed, the greater the wave vibration frequency. When the vehicle speed reaches a certain critical speed, the wave deformation on the tire crown surface will increase significantly and form a static waveform. This is the standing wave phenomenon of the tire. In case of standing wave phenomenon, the tire will be out of round, the tire temperature will rise sharply, and the ply and tread will peel off and fly away. If it is small, it can cause tire damage, and if it is large, it may cause major traffic accidents. Try to avoid emergency braking. During emergency braking, the wheel changes from rolling to towing, causing friction between the tire and the road, resulting in severe wear due to overheating. If emergency braking is often used at high speed, a lot of heat will be generated, causing tire aging and malignant damage to tires.

(6) Routine inspection before driving

Before driving, check whether the tire has bulges, cracks, cuts, nails, lack of air and abnormal wear. If any, it must be repaired immediately. Check whether the tyre groove is pierced by sundries, metal sheets, glass, etc., or there are stones and other foreign matters in the tyre groove. If found, please remove them with a screwdriver. Check the fastening of tire fixing nuts and tighten them in time if they are loose. If the tire pressure is found to be lower than the standard by 20%, it must be removed by professional personnel as soon as possible. Pay attention to whether there is deformation, crack and other damage to the wheel rim of the vehicle body, so as to facilitate driving safety.


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