Tire Balancer Calibration Test

Important: Calibrate the tire balancer according to the manufacturer's recommendations,or use the following procedure.
1. Spin the balancer without a wheel or any of the adapters on the shaft.
2. Inspect the balancer readings.
Specification
0-7 g (0.00 - 0.25 oz)

3. Balance a tire and wheel assembly that is within radial and lateral tolerances to ZERO.
4. Add an 85 g (3 oz) test weight to the wheel at any location.
5. Spin the tire and wheel assembly again. Observe the readings.
- In the static and dynamic modes, the balancer should call for 85 g (3 oz) of weight, 180 degrees opposite the test weight.
- In the dynamic mode only, the weight should be called for on the flange of the wheel opposite the last weight.
6. With the assembly unbalanced to 85 g (3 oz), cycle the balancer 5 times.
7. Take the balancer readings:
Specification
Variation: 7 g (0.25 oz) or less

8. Index the tire and wheel assembly at 4 separate locations on the balancer shaft , 90 degrees apart.
9. Cycle the balancer with the assembly at each location.
10. Take the balancer readings:
Specification
Variation: 7 g (0.25 oz) or less