Truck and Bus radial tyre pattern 399

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Truck and Bus radial tyre pattern 399

Q:What about truck tyres?: Check that the hub screws are secure.Wheel bearings loose, leaf springs, riding bolts are not required to tighten, loose suspension, etc., will cause the tires in the swing around, causing abnormal wear of the tires. Therefore, in the maintenance of vehicles, we should carefully check the wheel around the wheel and screw on the hub to see if there is loose.

Q:How much mileage does a car tyre need to be replaced?: Comprehensive traffic 3-5 km. Asphalt smooth road 50 thousand kilometers, sand rough road 30 thousand kilometers. When more than 30 thousand kilometers, the tread friction coefficient is less than 50. If the pavement is wet and wet, the extrusion and drainage function of tire tread will decrease or lose, the friction coefficient is less than 15, and the sand road surface will burst easily.

Q:How to distinguish the quality of automobile tires?: Tire marks, general tire retreading is to paste up, nail scratch these signs, can pull out must be retreaded tires. Or the outer side of the tire will be printed with the small triangle logo, the logo shows generally reached the serious loss of the scrap tire, and tire renovation is the sign of inferior workshop yourself, so use hands to pull the flag can also be distinguished.

Q:The left rear tire side of the car scratch, need to change it?: Because the side of the tire is relatively weak, if it is a side scratch, almost impossible to repair, such as continued use, there is a risk of a tire blowout, there are security risks.

Q:After the tire has been deflated, can it be used?: According to the transposition of the radial tire, there are different proposals and standards in different countries. In the United States and Japan, it is common practice to change the same side, that is, the front tire is changed to the rear wheel, the rear tire is replaced on the front wheel, the left and right sides do not change. The reason is that the buffer layer of radial tire and band, down to the direction of rotation is fixed on the rotation, if the direction of rotation is about exchange, upside down, the buffer layer and the band and the reverse direction is fixed, it will cause vibration, affect the ride comfort.

Q:How to distinguish between good and bad tires?: Observe the pattern, color and luster of the tyresFrom the texture point of view, under normal circumstances, due to poor quality retreading, tire processing is very non-standard, so the groove is relatively shallow. In color, the inferior retread looks bright, shiny luster, and regular relatively dark. The tyres after renovation are lighter in color and luster.

Q:In what case do you need to change the tires?: Tire cracks or drums and other damageIn the process of daily use in the tire or will be tied to the foreign body, or accidentally hit the curb, all these will lead to tire damage. The condition of the tire damage includes tread cracks, tire bulging, tread rubber missing, tire side wear seriously, and tires repeatedly stuck to foreign objects. In particular, the drum package, tires at any time there will be a risk of burst. As long as the tire has been found damaged, the owner should go to the professional tire shop as soon as possible to check the tires of the car, and replace it in time.

Q:How often will the pickup tires be replaced?: According to international regulations, if the tire is used properly, the tire must be replaced when it is worn to a depth of 1.6 mm. Almost all tyres have markings at a depth of 1.6 millimeters. If used normally, the mileage used by ordinary tires is about 5 - 100 thousand kilometers.

Q:What happens when a truck tire does not spill water?: You must need to install water, only carts or wagons, cars do not need to install water, because most buses are installed car retarder, so do not need water.

Q:How often do the tires change? How long will it take to change?: This has nothing to do with the four round of positioning. The original purpose of tyre transposition is to make the four tyres wear evenly and extend the service life of the tire, provided that the four wheel positioning angle conforms to the normal value of the original factory! (to add a little, the front and rear H type switching can not solve the slight bias wear mentioned above, and the front and rear X type switching is the best way to change the tire position)

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