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Vibration levels
The level of vibrations transmitted from the machine to the operator depends mainly upon the ground conditions on
which the operations take place, the mode of operation of the machine and the equipment used. Exposure to vibrations
can be considerably reduced when taking into account the following recommendations:
Select the right type and size of machine. Use equipment and tools compatible with the machine and suitable for the
type of work to be done;
Adjust the seat to the weight and size of the operator and lock the seat in the correct position;
Inspect regularly the suspension of the seat. Adjust and repair if necessary;
Perform maintenance of the machine at the prescribed intervals;
Operate the equipment in a smooth way, preventing, as far as possible, aggressive movements or excessive loads;
Adapt travelling speed and –route if necessary and avoid, as far as possible, rough terrain or hitting obstacles to
prevent bouncing.
Keep the terrain in good condition. Remove large obstacles and fill any ditched and holes.
This machine is equipped with an operator's seat, limiting the exposure of the operator's body to vibrations in accordance
with ISO 7096:2008 when the machine is used as intended. The operator's seat has been tested in accordance with EM3
input spectral class and a SEAT transmissibility factor <1.0.
The average acceleration value to which the operator's arms are subjected does not exceed 2.5 m/s2.
The average acceleration value to which the operator's body is subjected does not exceed 0.5 m/s2. The results were
obtained using an accelerometer during load and carry operations.
f
NOTE: The vibration exposure values have been determined under particular operating and terrain conditions and
therefore may not be representative for all possible operating conditions within the intended use of the machine.
Consequently, this single Whole-Body vibration emission value is not intended to determine the Whole-Body vibration
exposure as required by European Directive 2002/44/EC. For this purpose it is recommended to conduct measurements
under actual working conditions. If this is not feasible, information provided in the table below, taken from ISO/TR 25398:
2006 (*1), to estimate the daily vibration exposure is recommended. For regular operating activities, use the typical vibration
levels as the estimated level. With an experienced operator and/or smooth terrain, subtract the standard deviation from the
typical vibration level in order to obtain the estimated vibration level. For aggressive operations and/or rough terrain, add
the standard deviation to the typical vibration level in order to obtain the estimated vibration level.
Operating activity
Load and carry motion
Mining application
Transfer movement
V-shape motion
(*1) ISO/TR 25398:2006 Mechanical vibrations – Guidelines for assessment of exposure to whole-body vibration of ride-on
machine – Use of harmonized data measured by international institutes, organizations and manufacturers.
CONFORMITY
Typical vibration level [m/s
1.4*a
1.4*a
w,eqx
w,eqy
0.84
0.81
1.27
0.97
0.76
0.91
0.99
0.84
]
Standard deviation [m/s
2
a
1.4*s
w,eqz
x
0.52
0.23
0.81
0.47
0.49
0.33
0.54
0.29
]
2
1.4*s
s
y
z
0.2
0.14
0.31
0.47
0.35
0.17
0.32
0.14
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