Bosch GSR Professional 12 V Manual Original página 14

OBJ_BUCH-208-005.book Page 14 Wednesday, April 20, 2011 11:56 AM
14 | English
applications, with different accessories or poorly maintained,
the vibration emission may differ. This may significantly in-
crease 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 pe-
riod.
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.
Declaration of Conformity
We declare under our sole responsibility that the product de-
scribed under "Technical Data" is in conformity with the fol-
lowing standards or standardization documents: EN 60745
according to the provisions of the directives 2004/108/EC,
2006/42/EC.
Technical file at:
Robert Bosch GmbH, PT/ESC,
D-70745 Leinfelden-Echterdingen
Dr. Egbert Schneider Dr. Eckerhard Strötgen
Senior Vice President Head of Product
Engineering Certification
Robert Bosch GmbH, Power Tools Division
D-70745 Leinfelden-Echterdingen
Leinfelden, 16.09.2010
Assembly
Battery Charging
A battery that is new or has not been used for a longer period
does not develop its full capacity until after approx. 5 charg-
ing/discharging cycles.
To remove the battery 6 press the unlocking buttons 5 and
pull out the battery downwards. Do not exert any force.
The battery is equipped with a NTC temperature control
which allows charging only within a temperature range of be-
tween 0 °C and 45 °C. A long battery service life is achieved
in this manner.
A significantly reduced working period after charging indi-
cates that the battery is used and must be replaced.
Observe the notes for disposal.
Changing the Tool (see figure A)
Before any work on the machine (e. g., maintenance,
tool change, etc.) as well as during transport and stor-
age, set the rotational direction switch to the centre
position. Unintentional actuation of the On/Off switch can
lead to injuries.
The drill spindle is locked when the On/Off switch 8 is not
pressed. This makes quick, convenient and easy changing of
the tool in the drill chuck possible.
2 609 140 815 | (20.4.11)
Open the keyless chuck 1 by turning in rotation direction
until the tool can be inserted. Insert the tool.
Firmly tighten the collar of the keyless chuck 1 by hand in ro-
tation direction until the locking action ("click") is no longer
heard. This automatically locks the chuck.
The locking is released again to remove the tool when the col-
lar is turned in the opposite direction.
Replacing the Drill Chuck
Before any work on the machine (e. g., maintenance,
tool change, etc.) as well as during transport and stor-
age, set the rotational direction switch to the centre
position. Unintentional actuation of the On/Off switch can
lead to injuries.
Removing the Securing Screw (see figure B)
The keyless chuck 1 is secured with a securing screw 11
against unintentional loosening from the drill spindle. Com-
pletely open the keyless chuck 1 and unscrew the securing
screw 11 in rotation direction . Please note that the se-
curing screw has a left-hand thread.
Removing the Drill Chuck (see figure C)
Clamp the short end of an Allen key 12 into the keyless chuck
1.
Place the machine on a stable surface (e. g. a workbench).
Hold the machine firmly and loosen the keyless chuck 1 by
turning the Allen key 12 in rotation direction
tight-seated keyless chuck by giving the long end of the Allen
key 12 a light blow. Remove the Allen key from the keyless
chuck and completely unscrew the keyless chuck.
Mounting the Drill Chuck (see figure D)
The keyless chuck is mounted in reverse order.
The drill chuck must be tightened with a tighten-
ing torque of approx. 20–25 Nm.
Screw the securing screw 11 in anti-clockwise direction into
the opened keyless chuck. Always use a new securing screw,
as the threads are covered with a thread-locking compound
that loses its effect after multiple usage.
Dust/Chip Extraction
Dusts from materials such as lead-containing coatings,
some wood types, minerals and metal can be harmful to
one's health. Touching or breathing-in the dusts can cause
allergic reactions and/or lead to respiratory infections of
the user or bystanders.
Certain dusts, such as oak or beech dust, are considered
as carcinogenic, especially in connection with wood-treat-
ment additives (chromate, wood preservative). Materials
containing 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.
Prevent dust accumulation at the workplace. Dusts can
easily ignite.
,
. Loosen a
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