Power tool status
Meaning/cause
indicator (27)
– In combination with the
rapid shut-off
indicator (24)
Flashing blue
Power tool is connected to a mobile device or
settings are being transferred
Smartphone status
Meaning/cause
indicator (28)
Green
Additional information available (e.g. com-
mercial information)
Yellow
Important information available (e.g. temper-
ature warning)
Red
Operation-critical information available
(e.g. engine stop due to an error in the mi-
crontroller unit)
Selecting the working mode
– Press the (26) button for selecting the working mode re-
peatedly until the working mode you require lights up.
Working mode (25) indic-
Functions
ator
In Auto working mode, the power tool reaches maximum performance.
lights up
– "Hammer drilling" operating mode: Rapid increase in speed for controlled drilling up to
– "Chiselling" operating mode: Adaptive Speed Control
– Rapid shut-off (KickBack control)
Soft operating mode is used to machine delicate materials.
lights up
– "Hammer drilling" operating mode: EPC active, slow increase in speed for soft starts up to
– "Chiselling" operating mode: Adaptive Speed Control with an even more sensitive setup
– Rapid shut-off (KickBack control) with an even more sensitive setup
In Favorite working mode, the power tool can be individually configured via a smartphone
lights up
app.
– "Hammer drilling" operating mode can be configured in several steps:
– "Chiselling" operating mode: Adaptive Speed Control can be switched on and off
– Sensitivity of rapid shut-off (KickBack control) until switch-off can be configured
Connectivity functions
In conjunction with the GCY 42 Bluetooth® Low Energy Mod-
ule, the following connectivity functions are available for the
power tool:
– Registration and personalisation
– Status check, output of warning messages
– General information and settings
– Management
Read the corresponding operating instructions for informa-
tion about the Bluetooth® Low Energy Module GCY 42.
Bosch Power Tools
Note: In Favorite working mode, the functions are con-
figured via the smartphone app, while the functions are pre-
set in Auto and Soft working modes.
100 % of the maximum speed
80 % of the maximum speed for hammer drilling in sensitive surfaces
Power via speed
Electronic Precision Control (EPC) via start-up speed
The smartphone indicator (28) lights up if the power tool
sends information (e.g. a temperature warning) to a mobile
device via Bluetooth® wireless technology.
Practical Advice
u
u
Solution
–
Solution
If you are interested in this, read the message
on the smartphone
Read the message on the smartphone
Read the message on the smartphone imme-
diately
With the Bluetooth® Low Energy Module GCY 42, the
power tool is equipped with a radio interface. Local
operating restrictions, e.g. in aircraft or hospitals,
must be observed.
In areas where the Bluetooth® wireless technology is
not allowed to be used, the Bluetooth® Low Energy
Module GCY 42 and the button cell must be removed.
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