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OBJ_BUCH-2640-002.book Page 12 Monday, July 18, 2016 11:36 AM
12 | English
Vibration total values a
(triax vector sum) and uncertainty K
h
determined according to EN 60745-2-6:
2
Chiselling: a
=14 m/s
, K=1.5 m/s
h
The vibration level given in this information sheet has been
measured in accordance with a standardised test given in
EN 60745 and may be used to compare one tool with anoth-
er. It may be used for a preliminary assessment of exposure.
The declared vibration emission level represents the main ap-
plications of the tool. However if the tool is used for different
applications, with different accessories or insertion tools or is
poorly maintained, the vibration emission may differ. This
may significantly increase the exposure level over the total
working period.
An estimation of the level of exposure to vibration should also
take into account the times when the tool is switched off or
when it is running but not actually doing the job. This may sig-
nificantly reduce the exposure level over the total working
period.
Identify additional safety measures to protect the operator
from the effects of vibration such as: maintain the tool and the
accessories, keep the hands warm, organisation of work pat-
terns.
Assembly
Before any work on the machine itself, pull the mains
plug.
Auxiliary Handle
Operate your machine only with the auxiliary handle 6.
The auxiliary handle 6 can be set to any position for a secure
and low-fatigue working posture.
Turn the bottom part of the auxiliary handle 6 in counterclock-
wise direction and swivel the auxiliary handle 6 to the desired
position. Then retighten the bottom part of the auxiliary han-
dle 6 by turning in clockwise direction.
Changing the Tool
With the SDS-max tool holder, simpler and easier tool chang-
ing is possible without additional aids.
The dust protection cap 1 largely prevents the entry of drilling
dust into the tool holder during operation. When inserting the
tool, take care that the dust protection cap 1 is not damaged.
A damaged dust protection cap should be changed im-
mediately. We recommend having this carried out by
an after-sales service.
Inserting (see figure A)
Clean and lightly grease the shank end of the tool.
Push back the locking sleeve 2 and insert the tool in a twisting
manner into the tool holder. Release the locking sleeve 2
again in order to lock the tool.
Check the latching by pulling the tool.
Removing (see figure B)
Push back the locking sleeve 2 and remove the tool.
1 609 92A 3BN | (18.7.16)
Dust/Chip Extraction
Dust from materials such as lead-containing coatings,
2
some wood types, minerals and metal can be harmful to
one's health. Touching or breathing-in the dust can cause
allergic reactions and/or lead to respiratory infections of
the user or bystanders.
Certain dust, such as oak or beech dust, is considered car-
cinogenic, especially in connection with wood-treatment
additives (chromate, wood preservative). Materials con-
taining asbestos may only be worked by specialists.
– Provide for good ventilation of the working place.
– It is recommended to wear a P2 filter-class respirator.
Observe the relevant regulations in your country for the
materials to be worked.
Operation
Starting Operation
Observe correct mains voltage! The voltage of the pow-
er source must agree with the voltage specified on the
nameplate of the machine. Power tools marked with
230 V can also be operated with 220 V.
To save energy, only switch the power tool on when using it.
Switching On and Off
To start the machine, press the On/Off switch 5 and keep it
pressed.
To lock the pressed On/Off switch 5, press the lock-on button
4.
To switch off the machine, release the On/Off switch 5 or
when it is locked with the lock-on button 4, briefly press the
On/Off switch 5 and then release it.
For low temperatures, the machine reaches the full impact
rate only after a certain time.
This start-up time can be shortened by striking the chisel in
the machine against the floor one time.
Changing the Chiselling Position (Vario-Lock)
The chisel can be locked in 12 positions. In this manner, the
optimum working position can be set for each application.
Insert the chisel into the tool holder and turn it to the desired
position.
Working Advice
Sharpening Chisels (see figure C)
Good results are only achieved with sharp chisels; therefore,
sharpen the chiselling tools in good time. This ensures a long
service life of the tools and good working performance.
Set the chisel adjustment switch 3 to the
"Changing the chiselling position (Vario-
Lock)" position.
Set the chisel adjustment switch 3 to the
"Chiselling" position and turn the chisel un-
til it engages.
Bosch Power Tools
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