Wheel Balance and Radial Force Variation (REV) Measurement

Note:
Refer to Service Bulletin 05-50-10 for the proper balancing procedures and measurement of RFV

1) Make sure originally equipped tires are installed on the vehicle, including tire brand, model and size. Different tire brands, types and sizes may negatively affect the feel of the vehicle and should be replaced with the original tires.

2) Drive the vehicle a minimum of 10 miles to eliminate tire flat-spotting that may have occurred, immediately lift the vehicle into the air to prevent incorrect RFV readings.

3) Mark the inside of each tire to identify the original tire placement on the vehicle (LF, LR, RF, RR).

4) Remove the wheel and tire assemblies.

Note:
Do not remove the wheel weights

5) Balance tires to within 5 grams (1/4 ounce) by adding weight only and record measurements on the TechLine Pre-call Worksheet (Tire Analysis Worksheet). If this cannot be achieved, remove all weights and re-balance the wheel and tire assembly.

6) Measure RFV of each assembly and record the values on the Tire Analysis Worksheet. If any values are excessive~ match the tire and wheel assembly to minimize the RFV

Note:
Excessive RFV on all 4 tires is commonly a result of tire flat-spotting.

7) If any tires still remain over 8kg (17.6lbs) contact your DPSM for authorization to replace tires.

8) When tires are balanced and RFV is minimized, position the wheel and tire assemblies to be installed with the lowest RFV on the left front, 2nd lowest on the right front, 3rd lowest on the left rear and the highest reading on the right rear.