The tire pressure also changes when the car is moving at high speed and making frequent maneuvers. In winter, this is almost unnoticeable. Cold air and low road surface temperature do not allow the tire to heat up. In summer, the oncoming flow of warm air does not cool the tire well, and its temperature begins to rise. Additional heating of the tire occurs from the road surface heated by the sun's rays. All this can increase the tire pressure by 0.2-0.3 bar.
Warning: The tire pressure is measured only when its temperature is equal to the ambient air temperature.
To carry out repair work you will need:
- pressure gauge;
- compressor or tire pump.
Sequence of execution
1. Preparing the vehicle for work (see point 2a "Preparing a car for maintenance and repair").
2. Pulling it towards you, remove the decorative wheel cap.
3. Unscrew the protective cap of the nipple.
4. Press the pressure gauge leg firmly against the end of the nipple and hold it in this position for 1-2 seconds, then disconnect the pressure gauge from the nipple.
5. Return the pressure gauge arrow to zero and repeat the check.
6. If the pressure in the tire is below 2.0 bar (0.2 MPa), then pump it up using a pump or compressor.
Note: When pumping, monitor the pressure using the pump or compressor pressure gauge.
(The information is posted on the portal: «vazbook.ru»)
Warning: When inflating, the pressure gauge usually shows the pressure in the air supply hose, not the tire. To determine the true pressure in the tire, you must stop the inflation process.
7. If the tire pressure is higher than normal, then release the air by pressing the valve pin with a special pin on the pressure gauge body or a screwdriver blade. Release the air from the tire in small portions with an intermediate pressure check.
8. Screw the protective cap onto the nipple.
9. We check the pressure in the other wheels of the car in the same way.