Hunter GSP9700 Series - 7 Theory of Operation; Harmonic Vibrations

7. THEORY OF OPERATION
7.1 Harmonic Vibrations
A vibration in a tire and rim assembly can be caused by:
Imbalance
Change in Sidewall Stiffness (Force Variation)
Rim Bent/Out-of-Round
Tire Out-of-Round
Wheel to Axle Mounting Error*
Brake Component Wear or Failure*
Drivetrain or Engine Component Wear or Failure*
Vehicle Component Characteristics*
Combination of Some or All Factors
*Factors not detected by the GSP9720JLR Series Road Force Measurement System.
A vibration that occurs one time for every revolution is defined as a first harmonic
vibration:
GSP9720JLR Wheel Balancer Operation Instructions Theory of Operation
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