Bosch GSR Professional 18V-45 Manual Original página 18

18 | English
Setting the rotational direction (see figure B)
Only operate the rotational direction switch (10)
u
when the power tool is not in use.
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
rotational direction switch (10) through to the left stop.
Left Rotation: To loosen and unscrew screws and nuts,
press the rotational direction switch (10) through to the
right stop.
Setting the operating mode
Drilling
GSR 18V-45
Set the torque presetting ring (3) to the
"drilling" symbol.
GSB 18V-45
Set the operating mode presetting ring (4) to
the "drilling" symbol.
Screwdriving
GSR 18V-45
Set the torque presetting ring (3) to the re-
quired torque.
GSB 18V-45
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-45
Set the operating mode presetting ring (4) to
the "impact drilling" symbol.
Switching on/off
To start the power tool, press and hold the on/off switch
(11).
The LED (9) lights up when the on/off switch (11) 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 (11).
LED worklight with status indicator
The LED worklight (9) is used as a status indic-
ator for device protection and low battery
status:
LED Description
Feedback
Flashing light 3x Battery status is low.
during operation The voltage level of the battery has fallen
below the optimum value. The perform-
ance of the device is restricted.
Flashing light 3x Device protection is active.
during downtime Device protection has been activated to
1 609 92A 7KU | (23.08.2022)
LED Description
Feedback
prevent the battery from consuming a
large amount of power and to protect the
device against damage.
– If the battery status is low, charge the battery (7) or re-
place the weak battery with a fully charged battery.
Adjusting the speed
You can adjust the speed of the power tool when it is on by
pressing in the on/off switch (11) to varying extents.
A light pressure on the on/off switch (11) results in a low ro-
tational speed. Increased pressure on the switch causes an
increase in speed.
Preselecting torque (applies to screwdriving mode)
The torque presetting ring (3) can be used to pre-select the
required torque in 20 stages. Once the pre-selected torque
has been reached, the tool will stop delivering power to the
application.
Mechanical gear selection
Only operate the gear selector (5) when the power
u
tool is not in use.
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.
Always push the gear selector switch as far as it will
u
go. Otherwise, the power tool may become damaged.
Temperature-dependent overload protection
When used as intended, the power tool cannot be over-
loaded. In the event of overloading or the temperature rising
outside the permitted operating temperature range, the
speed will be reduced. The power tool will not run at full
speed again until the permitted operating temperature has
been reached.
Fully automatic spindle lock (Auto-Lock)
The drill spindle, and therefore the tool holder (1), are
locked when the on/off switch (11) is not pressed.
This enables screws to be screwed in even when the battery
(7) is empty and allows the power tool to be used as a
screwdriver.
Practical advice
Only apply the power tool to the screw when the tool
u
is switched off. Rotating application tools can slip off.
Before screwing larger, longer screws into hard materials, it
is advisable to pre-drill a pilot hole with the core diameter of
the thread to approx. 2/3 of the screw length.
An auxiliary tool can be used to remove the screwdriver bit
or universal bit holder.
Belt clip
Bosch Power Tools