VIBRATION
The European Physical Agents (Vibration) Directive has been brought in to help reduce
hand arm vibration syndrome injuries to power tool users. The directive requires power
tool manufacturers and suppliers to provide indicative vibration test results to enable users
to make informed decisions as to the period of time a power tool can be used safely on a
daily basis and the choice of tool.
Further Advice can be found at www.hse.gov.uk
Vibration total values (triax vector sum) determined according to EN 60745:
Typical weighted vibration
Vibration emission value a
h
=6.53m/s
2
Uncertainty K = 1.5m/s²
The declared vibration emission value should be used as a minimum level and should be
used with the current guidance on vibration.
Calculating the actual period of the actual period off use can be dificult and the HSE
website has further information.
The declared vibration emission been measured in accordance with a standardised test
stated above and may be used to compare one tool with another tool.
The declared vibration emission value may also be used in a preliminary assessment of
exposure.
Warning:
The vibration emission value during actual use of the power tool can differ
from the declared value depending on the ways in which the tool is used dependant
on the following examples and other variations on how the tool is used:-
How the tool is used and the materials being cut.
The tool being in good condition and well maintained.
The use the correct accessory for the tool and ensuring it is sharp and in good condition.
The tightness of the grip on the handles and if any anti vibration accessories are used.
And the tool is being used as intended by its design and these instructions.
While working with this power tool, hand/arm vibrations occur. Adopt the correct
working practices in order to reduce the exposure to vibration.
This tool may cause hand-arm vibration syndrome if its use is not adequately managed.
Warning:
To be accurate, an estimation of exposure level in the actual conditions of
use should also take account of all parts of the operating cycle such as the times
when the tool is switched off and when it is running idle but not actually doing the job. This
may signiicantly reduce the exposure level over the total working period.
Help to minimize your vibration exposure risk.
Maintain this tool in accordance with these instructions and keep well lubricated (where
appropriate)
If the tool is to be used regularly then invest in anti vibration accessories.
Avoid using tools in temperatures of 10
0
C or less
Plan your work schedule to spread any high vibration tool use across a number of days.
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