Impact Unit; Noise And Vibration Declaration Statement; Additional Vibration Information - Atlas Copco Cobra MK1 Sicherheitshinweise Und Betriebsanleitung

Safety and operating instructions

Impact unit

Impact energy
Blows/minute
Frequency (Hz)
Lubrication
Oil type for impact unit
Oil capacity, litres (oz)
Oil consumption, litres/hour (oz/hour)

Noise and Vibration Declaration Statement

Guaranteed sound effect level Lw according to ISO 3744 in accordance with directive 2000/14/EC.
Sound pressure level Lp according to ISO 11203.
Vibration value A and uncertainty B according to EN 12096. Values determined according to ISO 8662-5. See
table "Noise and vibration data" for the values of A, B, etc.
These declared values were obtained by laboratory type testing in accordance with the stated directive or
standards and are suitable for comparison with the declared values of other tools tested in accordance with
the same directive or standards. These declared values are not adequate for use in risk assessments and
values measured in individual work places may be higher. The actual exposure values and risk of harm
experienced by an individual user are unique and depend upon the way the user works, in what material the
breaker is used, as well as upon the exposure time and the physical condition of the user, and the condition of
the breaker.
We, Atlas Copco, cannot be held liable for the consequences of using the declared values, instead of values
reflecting the actual exposure, in an individual risk assessment in a work place situation over which we have
no control.

Additional Vibration Information

This tool may cause hand-arm vibration syndrome if its use is not adequately managed.
This additional vibration information may be of assistance to employers in meeting their obligations (for example
under EU Directive 2002/44/EC) to assess the risks to their workers arising from hand arm vibration associated
with the use of this tool.
The vibration emission varies greatly with task and operator technique. The declared vibration value relates to
a single axis on the non-trigger handle and much higher vibration levels may occur at other hand positions or
measurement directions.
We believe that normal intended use of the tool will usually produce three axes vibration emissions in the range
2
of C m/s when breaking concrete, in the range of E m/s
tie tamping (vibration total value according to the definition in ISO 5349-1:2001) depending on the details of
the task, but emissions outside this range may occur for some applications.
2
A figure of D m/s for concrete, F m/s
emission value when, for example, estimating the likely average exposure (and hence risk in accordance with
EU-directive 2002/44/EC) of users performing a wide range of tasks within the intended use of the tool. We
point out that application of the tool to a sole specialist task may produce a different average emission and in
such cases we strongly recommend a specific evaluation of the vibration emission.
We recommend a programme of health surveillance to detect early symptoms that may relate to vibration
exposure, so that management procedures can be modified to help prevent significant disability.
22
Cobra MK1
60 J at 24 Hz
1440
24
Impact mechanism through separate oil bath
Atlas Copco IMPACT-OIL
0.1 (3.38)
0.005 (0.17)
2
breaking asphalt and within a range of G m/s
2
for asphalt and H m/s
© 2008 Atlas Copco Construction Tools AB | No. 9800 0665 90 | 2008-10-28
COBRA MK1, TT, TT-AWD
Cobra TT, TT-AWD
40 J at 27 Hz
1620
27
Atlas Copco IMPACT-OIL
0.1 (3.38)
0.005 (0.17)
2
for tie tamping is probably a usable average
2
when