Dust/Chip Extraction; Starting Operation - Bosch GSR 12V-15 Professional Manual Original

14 | English
The lithium-ion battery can be charged at any time without
reducing its service life. Interrupting the charging process
does not damage the battery.
The lithium-ion battery is protected against deep discharge
by the "Electronic Cell Protection (ECP)". When the battery
is discharged, the power tool is switched off by means of a
protective circuit: The application tool no longer rotates.
Do not continue to press the On/Off switch after the
u
power tool has automatically switched off. The battery
can be damaged.
To remove the battery (5), press the release buttons (4) and
pull the battery downwards out of the power tool. Do not
use force to do this.
Follow the instructions on correct disposal.
Changing the Tool (see figure B)
Remove the battery from the power tool before carry-
u
ing out work on the power tool (e.g. maintenance,
changing tool, etc.). The battery should also be re-
moved for transport and storage. There is risk of injury
from unintentionally pressing the on/off switch.
The drill spindle is locked when the on/off switch (7) is not
pressed. This makes it possible to change the application
tool in the drill chuck quickly, conveniently and easily.
Open the keyless chuck (1) by turning it in the direction of
rotation ➊ until the tool can be inserted. Insert the tool.
Firmly tighten the sleeve of the keyless chuck (1) by turning
it by hand in the direction of rotation ➋ until it audibly clicks
into place. This will automatically lock the drill chuck.

Dust/Chip Extraction

Dust 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 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 carci-
nogenic, especially in connection with wood-treatment ad-
ditives (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 ma-
terials to be worked.
Avoid dust accumulation at the workplace. Dust can
u
easily ignite.
Operation

Starting Operation

Inserting the battery
Note: The use of batteries unsuitable for your power tool can
lead to malfunctions or damage to the power tool.
Set the rotational direction switch (6) to the middle position
to avoid unintentionally switching it on. Insert the charged
1 609 92A 4T2 | (19.05.2020)
battery (5) into the handle until you feel it engage and it is
flush with the handle.
Setting the rotational direction (see figure C)
The rotational direction switch (6) is used to change the ro-
tational direction of the power tool. However, this is not pos-
sible while the on/off switch (7) is being pressed.
Right rotation: To drill and to drive in screws, press the ro-
tational direction switch (6) through to the left stop.
Left Rotation: To loosen and unscrew screws and nuts,
press the rotational direction switch (6) through to the right
stop.
Preselecting the Torque
The torque presetting ring (2) can be used to preselect the
required torque in 20 stages. When the correct setting is
used, the application tool will be stopped when the screw is
driven flush into the material or once the set torque has been
reached. In position
e.g. for drilling.
When unscrewing screws, you can select a higher setting or
set the tool to the
Mechanical gear selection
Only operate the gear selector (3) when the power
u
tool is not in use.
You can preselect two speed ranges with the gear selector
(3).
First gear:
Low speed range; for working with a large drilling diameter
or for screwdriving.
Second gear:
High speed range; for working with a small drilling diameter.
If the gear selector switch (3) cannot be pushed all the way,
turn the drill chuck slightly with the drill.
Switching on/off
To start the power tool, press and hold the on/off switch
(7).
The lamp (9) lights up when the on/off switch (7) is lightly or
fully pressed, meaning that the work area is illuminated in
poor lighting conditions.
To switch off the power tool, release the on/off switch (7).
Adjusting the Speed
You can adjust the speed of the power tool when it is on by
pressing in the on/off switch (7) to varying extents.
A light pressure on the on/off switch (7) results in a low rota-
tional speed. Increased pressure on the switch causes an in-
crease in speed.
Fully automatic spindle lock (Auto-Lock)
The drill spindle, and therefore the tool holder, are locked
when the on/off switch (7) is not pressed.
This enables screws to be screwed in even when the battery
(5) is empty and allows the power tool to be used as a
screwdriver.
Autogoods "130"
the overload clutch is deactivated,
symbol.
Bosch Power Tools