The principle of tyre dynamic balance is that the rotating axle and gravity center are not consistent when the tyre rotates, which is mainly caused by uneven mass distribution of the tyre. When the wheel of a car travels at high speed, it will form a dynamic unbalanced state, which will cause the phenomenon of wheel shaking and steering wheel vibration during driving. In order to avoid this or eliminate the phenomenon that has already occurred, it is necessary to balance the edge parts of the wheel in a dynamic state by adding weight.

Tyre balancer is calibrated by:

1. Install the tyre to the dynamic balance tester. Pull out the ruler on the dynamic balancer to measure and enter it into the first controller.

2. Measure the rim width (steel ring) of the tyre tested with a caliper. On the tester, the second controller inputs the data of the tyre being tested;

3. Input rim diameter in the controller and start with STRAR.

4. After putting down the tire cover of the dynamic balancing machine, the tyre starts to run automatically and carry out dynamic balancing data detection. After the test, the tyre stops running and the test result is displayed on the screen of the control panel.

5. Turn the tyre slowly and when one of the rows of indicators next to the test data is fully illuminated, at 12 o'clock on the corresponding side of the tyre, inlay the counterweight corresponding to the test data:

6. After the inlay of the weight on both sides of the tyre, carry out the dynamic balance test on the tyre again until the 1653 operating panel shows the data as "0", and complete the correction.