Hyundai HL970A Operator's Manual page 34

The vibration level can be predicted based on the
information in the following table which is used to calculate
the daily level of vibration exposure.
Predict the vibration level in the three vibration directions of
axes X, Y, and Z. The mean vibration level should be used
under normal operation conditions. Scenario factors from
mean vibration level based on operation by skilled operator
and on smooth terrain are excluded. Scenario factors
are included to obtain the mean vibration level based on
aggressive operation and severe terrain to assess the
expected vibration level.
All vibration values are indicated in m/s 2 .
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