Battery charge indicator
The green LEDs on the battery charge indicator indicate the
state of charge of the battery. For safety reasons, it is only
possible to check the state of charge when the power tool is
not in operation.
Press the button for the battery charge indicator or
show the state of charge. This is also possible when the bat-
tery is removed.
If no LED lights up after pressing the button for the battery
charge indicator, then the battery is defective and must be
replaced.
Battery model GBA 18V...
LEDs
3× continuous green light
2× continuous green light
1× continuous green light
1× flashing green light
Battery model ProCORE18V...
LEDs
5× continuous green light
4× continuous green light
3× continuous green light
2× continuous green light
1× continuous green light
1× flashing green light
Changing the tool (see figure A)
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.
Open the keyless chuck (2) by turning it in the direction of
rotation ➊ until the tool can be inserted. Insert the tool.
Firmly tighten the keyless chuck (2) by turning it by hand in
the direction of rotation ➋. 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.
Bosch Power Tools
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.
to
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
Capacity
Note: The use of batteries unsuitable for your power tool can
lead to malfunctions or damage to the power tool.
60−100 %
Set the rotational direction switch (10) to the middle posi-
30−60 %
tion to avoid unintentionally switching it on. Insert the
5−30 %
charged battery (7) into the handle until you feel it engage
0−5 %
and it is flush with the handle.
Setting the rotational direction (see figure B)
The rotational direction switch (10) is used to change the ro-
tational direction of the power tool. However, this is not pos-
sible while the on/off switch (11) is being pressed.
Right rotation: To drill and to drive in screws, press the ro-
tational direction switch (10) through to the left stop.
Capacity
Left rotation: To loosen and unscrew screws and nuts,
80−100 %
press the rotational direction switch (10) through to the left
60−80 %
stop.
40−60 %
Setting the operating mode
20−40 %
5−20 %
0−5 %
Drilling
GSR 18V-21
Set the torque presetting ring (3) to the
"drilling" symbol.
GSB 18V-21
Set the operating mode presetting ring (4) to
the "drilling" symbol.
Screwdriving
GSR 18V-21
Set the torque presetting ring (3) to the re-
quired torque.
GSB 18V-21
Set the operating mode presetting ring (4) to
the "screwdriving" symbol.
Set the torque presetting ring (3) to the re-
quired torque.
Impact drilling
GSB 18V-21
Set the operating mode presetting ring (4) to
the "impact drilling" symbol.
1 609 92A 87N | (29.09.2022)
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