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 EN60745:
Typical weighted vibration
Vibration emission value ah =3.94m/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 difficult and the HSE website has further
information.
The declared vibration emission has been measured in accordance with a standardised test stated
above and may be used to compare one tool with another.
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 the tool is being used as intended by its design and these instructions.
This tool may cause hand-arm vibration syndrome if its use is not adequately
managed
Warning:
Identify safety measures to protect the operator that are based on an estimation of
exposure in the actual conditions of use (taking account of all parts of the operating cycle such
as the times when the tool is switched off and when it is running idle in addition to the trigger time).
Note The use of other tools will reduce the users’ total working period on this tool.
Helping to minimise your vibration exposure risk.
ALWAYS use sharp blades.
Maintain this tool in accordance with these instructions and keep well lubricated (where appropriate)
Avoid using tools in temperatures of 10°C or less
Plan your work schedule to spread any high vibration tool use across a number of days.
Health Surveillance
All employees should be part of an employer’s health surveillance scheme to help identity any vibration
related diseases at an early stage, prevent disease progression and help employees stay in work.
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