Bosch GSR Professional 18V-90 C - Advanced Functions and Maintenance; User Interface Features

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When the LED(15) lights up green, the tool has returned to
within the permitted operating temperature range.
User Interface (seefigureD)
The user interface(9) is used to activate and deactivate the
precision clutch and for the "KickBack Control" rapid shut-
off, as well as for the status indicator of the power tool.
Precision Clutch
The precision clutch stops overlocking
when the set torque is reached, thereby re-
ducing clutch wear and the resulting noise.
The precision clutch can be deactivated on the
user interface(9) with the precision clutch button(19). The
current status is shown via the LED for precision clutch(20)
on the user interface(9).
Rapid Shut-off (KickBack Control)
The rapid shut-off function (KickBack Con-
trol) gives the user greater control over the
power tool and offers them better protec-
tion than power tools that do not have Kick-
Back Control. The power tool will switch off if it suddenly
and unforeseeably rotates around the drilling axis.
The rapid shut-off is indicated by the LED(15) flashing red,
flashing from the worklight(18) and the LED of the KickBack
Control(16) lighting up red on the power tool.
To switch the tool back on, release the on/off switch and
then press it again.
u It will no longer be possible to switch the power tool
on if the KickBack Control function is faulty. Have the
power tool serviced by a qualified repair person using
only original replacement parts.
The rapid shut-off function can be deactivated on the user
interface(9) with the KickBack Control button(17). If the
power tool is not used for longer than 5 minutes or if the re-
chargeable battery is removed, the rapid shut-off function
automatically switches back on. The current status is shown
via the KickBack Control LED(16) on the user interface(9).
u Note: The warning light of the LEDs is not visible from
all directions! The warning light is difficult to see in
bright sunlight.
Status Indications
Status indicator for
power tool
Meaning/cause Solution
Green Status OK –
Yellow Critical temperature has been reached, re-
chargeable battery is almost empty, or KickBack
Control is switched off
Run the power tool at no load and allow it to cool
down, replace or charge the rechargeable battery
soon, or press the KickBack Control button
Illuminated red Power tool has overheated or rechargeable bat-
tery is empty
Allow the power tool to cool down, or replace or
charge the rechargeable battery
Flashing red Rapid shut-off is triggered Switch the power tool off and on again
Flashing blue Power tool is connected to a mobile device or
settings are being transferred
–
Connectivity functions
In conjunction with the Bluetooth® Low Energy Module
GCY42, the following connectivity functions are available
for the power tool:
– Registration and personalisation
– Status check, output of warning messages
– General information
– Management
– Switching the worklight on and off
– Setting the worklight brightness and afterglow duration
– Setting the brightness and backlight duration of the user
interface
Read the corresponding operating instructions for informa-
tion about the Bluetooth® Low Energy ModuleGCY42.
Practical advice
u The power tool with inserted Bluetooth
®
Low Energy
ModuleGCY42 (accessory) is equipped with a radio
interface. Local operating restrictions, e.g. in aircraft
or hospitals, must be observed.
u Only apply the power tool to the screw when the tool
is switched off. Rotating application tools can slip off.
Belt clip
You can use the belt clip (6) to hang the power tool on a belt,
for example. You then have both hands free and the power
tool is always at hand.
Maintenance and Service
Maintenance and Cleaning
u Remove the battery from the power tool before carry-
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.
u To ensure safe and efficient operation, always keep
the power tool and the ventilation slots clean.
Bosch Power Tools 1 609 92A 6GU | (23.06.2022)