12.2.5.6-1 Vibration Levels

The effects of vibration on visual and manual performance should be evaluated using Figure 12.4.

Additional Information:
Engineering controls should be applied to reduce vibration; see Guidelines 12.2.5.6-2 and 12.2.5.6-3. If vibration levels still exceed those in the unshaded areas of Figure 12.4, a study should be performed to demonstrate that human performance is within acceptable limits. In the top graph, the shaded area represents conditions that will cause an error of 5% or more in number reading. In the bottom graph, the shaded area represents conditions that will cause a tracking error of 10% or more.

Figure_12.4

Figure 12.4 Acceleration/frequency combinations and the accuracy of.