Tyres are the only link between the vehicle and the road. When any road safety depends on the contact patch is relatively small in size.
Thus, it is very important to keep tires in good condition and replace them using the proper equipment.
Tire size on the first complete on your car is determined by the designers and manufacturers of car tires, taking into account all aspects of the operation. For replacement should not change the size, type, load index and speed, without consulting with a specialist.
Mounting and dismounting
These operations must be performed only by professionals with proper equipment. Incorrect installation can cause accidents or damage to tires, tubes and rim.
Installation of tires that do not match the type and size. Except in special cases and cases of spare wheels, tires, mounted on one axis, should be the same type and size.
Not recommended, but in some countries even banned, to mount on the rear axle of the diagonal of tire if on the front axle installed radial tires.
Mounting tires on rim. Necessary to mount a tire so that the marking DOT (located in the area of ??the board) was on the outside of the wheel.
With the exception of tires:
- with the prescribed direction of rotation;
- with a white sidewall
- with a protective belt on the sidewall.
Installation of tubeless tires without cameras are allowed only on cars equipped with rims for tubeless tires (from Hampi, a flat hanpi).
Strongly recommended to install tubeless tire with the camera, if you are mounted on rims for tubeless tires (from Hampi, a flat hanpi).
If such installation should be performed in its implementation the camera should be pumped very slowly to ease out air that may remain between the camera and cover.
Mounting Tubeless tire on the rim for the tire chamber (without Hampi, without a flat hanpi) made sure the camera.
Assembly chamber tire on the rim for a tubeless or on the rim for the tire chamber is carried out only with the camera.
When mounting tubeless tires, use valve, corresponding to the rim.
Mount the new valve (or a new gasket when using metal venteley) for each replacement tire.
To make a good fit in the side, after installation of automobile tires should be inflated to 3.5 bar, and then bring pressure to the level required for ekspluatatsii.
The internal pressure of
Compliance to internal pressure the tire has a certain significance to ensure traffic safety. Lack of internal pressure leads to overheating of the tire.
Exploitation of the car is running the tire internal pressure is below normal, recommended konstruktorm or the manufacturer may cause damage to the tires. This damage is irreversible: they can cause damage tires and lead to severe loss of pressure.
Adverse effects of insufficient internal pressure does not always make themselves felt immediately, and to identify only some time after you have restored the internal pressure to normal.
Should be regularly, every two weeks, to check the level of internal pressure, not forgetting about the spare tire.
Monitoring should be done on the "cold" tire as a result of heating during operation the pressure in it increases.
Do not lower the pressure in the hot bus!
The internal pressure measured in the cold bus must always meet the standards recommended by the designer or manufacturer of automobile tires.
Care should be firmly seated valve cap to ensure absolute integrity and protect the inner part of the valve.
Indices of load and speed
For a large part of tire performance characteristics specified load indices (number) and speed (letter)
Tyres with original equipment, are designed for maximum vehicle load.
To be sure the tires mounted the replacement, meet the technical requirements, refer to a specialist. As for winter tires «M + S», their speed index can be lower than the original equipment tires, but in this case the speed should correspond to the indicator.
On cars with a maximum speed exceeding 160 km / h can be fitted with tires «M + S», with a speed index lower than that provided by the manufacturer, but it should at least be equal to Q (160 km / h ).
Caring for tires
should regularly inspect the tires, paying particular attention to:
- protector to verify the extent of deterioration, the presence of cuts, local lesions and foreign bodies (particles of gravel, nails, etc. .)
- sides to check for cuts, cracks, wear and abnormal strain.
It is urgent to establish the cause of anomalies in the motion: the strong vibration, the lateral pulling to the right or left, etc. In the case of pressure loss should immediately stop, as the movement in the internal reduced pressure resulting in damage to structural elements of the tire.
It is necessary to dismantle the bus and determine the cause of pressure loss.
If there is any damage should see a specialist to get his opinion on the necessity or possibility of repair. Before proceeding to repair, it is recommended to view its interior, to ensure no damage or obstructions.
Replacing the tires
should regularly check the tread depth. On the buses there are indicators by which the car owner can judge the degree of tread wear. The higher the degree of deterioration, the greater the risk of slipping on wet roads.
In case of replacement of two tires from the standpoint of the car on the road, it is recommended to mount the new tires or the least worn on the rear axle.
If you mount tires used ones should seek expert opinion.
To ensure security, we recommend to use a new camera for the new chamber tires and a new valve during installation of the new tubeless tires.
Tubeless tires should be mounted only on wheels, with a rim designed for tubeless tires.
The main factors affecting the durability of tires
Regardless of these factors have a significant amount of the life of tires will decrease due to:
- speed and driving conditions: rough road, a sharp acceleration of the movement, frequent braking create conditions , which can greatly reduce tire life (with a speed of 120 km / h tire wear 2 times faster than the speed of 70km / h)
- ambient temperature: tire wear to a large extent depends on air temperature during movement;
- overload: overload the tire to 20% of its service life is reduced by 30%,
- insufficient level of internal pressure: at a pressure of up to 20% below the norm observed reduction in life expectancy by an average of 30%,
- attacks: curb the movement of a pothole at high speed, stones and other obstacles may be the cause of tire failure, whose consequences are not always immediately.
