It is necessary to maintain in tires (including a spare tire) required pressure, regularly (at least once a month) check it with a pressure gauge and bring it up to standard. It is necessary to check the tire pressure when the ambient temperature drops or rises significantly and before a long-distance trip.
The air pressure in the front and rear tires should be 2.2 bar.
When driving for a long time, especially at high speed, the tires heat up and the pressure in them increases. Therefore, the air pressure should be checked on cold tires before driving.
If it is not possible to measure the pressure on cold tires, it is necessary to take into account the increase in air pressure in the tires from heating by 0.2-0.3 bar. To check the air pressure in the tires, unscrew the cap of the wheel valve...
...and connect a tire pressure gauge or a pump with a pressure gauge to the valve.
If the pressure is lower than required, we inflate the tire using a tire pump or compressor, monitoring the pressure using a pressure gauge.
If the pressure is higher than required...
...by pressing with a special protrusion of the pressure gauge (or a suitable tool) on the valve, release air from the tire in small portions and check the pressure.
The tires must not have any bulges, tread separations, or damage that exposes the cord.
A worn-out tire should be replaced with a new one immediately, without waiting for it to fail.
It is prohibited to install tires of different models on one axle, as well as tires of a size or load that do not correspond to the vehicle.
The remaining tread depth must be at least 1.6 mm.
To monitor tread wear, its grooves are equipped with indicators in the form of 1.6 mm high protrusions.
The wear indicators on the sidewalls of the tires are marked with the letters TWI.
You can also check the tread wear using a caliper.
For this...
...we lower it into the groove in the middle part of the tread (as a rule, the tread wears out faster in this area) depth gauge probe and make sure that the height of the pattern is more than 1.6 mm.
To reduce the likelihood of error, it is advisable to measure at three different points around the circumference of the tire. If the wear exceeds the maximum allowable, the tires must be replaced.
We regularly check the tightness of the wheel mounting bolts and tighten the bolts if necessary.
If vibrations occur while driving on a flat section of the road in a limited speed range, it is necessary to have the wheels balanced at a tire shop. Vibration at all speeds can be caused by spotty wear of the tire, the appearance of bulges or other damage on it, as well as deformation of the wheel disk.