Maintenance And Service - Bosch GBH 18V-34 CF Professional Manual Original

24 | English
Working mode (25) indic- Functions
ator
Favourite working mode: Individual configuration via smartphone app
lights up
The following settings are pre-programmed:
– "Hammer drilling" operating mode (Electronic Precision Control soft start): Fastest pos-
– Rapid Shut-off (KickBack Control) active
– "Chiselling" operating mode (Adaptive Speed Control soft start): Deactivated, fastest pos-
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 and settings
– Management
Read the corresponding operating instructions for informa-
tion about the Bluetooth® Low Energy Module GCY 42.
Practical Advice
With the Bluetooth® Low Energy Module GCY 42, the
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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
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not allowed to be used, the Bluetooth® Low Energy
Module GCY 42 and the button cell must be removed.
Note: The cover (13) can only be securely closed if the
Bluetooth® Low Energy Module GCY 42 and the button cell
are situated in the power tool.
– To deactivate the Bluetooth® Low Energy Module
GCY 42, rotate the button cell or place means of insula-
tion between the button cell and Bluetooth® Low Energy
Module GCY 42.
– Close the cover (13) to prevent dirt from getting in.
Setting the drilling depth (see figure J)
You can use the depth stop (17) to set the required drilling
depth X.
– Press the button for depth stop adjustment (15) and in-
sert the depth stop into the auxiliary handle (16).
The fluting on the depth stop (17) must face downwards.
– Insert the SDS-plus application tool into the SDS-plus tool
holder (3) to the stop. Otherwise, the movability of the
SDS-plus drilling tool can lead to incorrect adjustment of
the drilling depth.
– Pull the depth stop far enough out that the distance
between the drill bit tip and the edge of the depth stop
corresponds to the required drilling depth X.
Overload clutch
If the application tool jams or snags, the power trans-
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mission to the drill spindle will be interrupted. Always
1 609 92A 7SJ | (23.06.2022)
sible run-up up to maximum power
sible run-up up to maximum power
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Rapid shut-off (KickBack Control)
– To switch the tool back on, release the on/off switch
Electronic Precision Control (EPC)
EPC assists you when drilling and when working with impact
in sensitive materials by ensuring slow start-up of the operat-
ing speed for precise working.
Adaptive Speed Control in "Chiselling" Operating Mode
Vibration damping
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Maintenance and Service

Maintenance and Cleaning
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hold the power tool firmly with both hands to with-
stand the forces this may create and adopt a position
with stable footing.
Switch the power tool off immediately and remove the
application tool if the power tool becomes blocked.
Switching on when the drilling tool is blocked may
cause high torque reactions.
The rapid shut-off function (KickBack
Control) gives the user greater control
over the power tool and offers them bet-
ter protection than power tools that do
not have Kickback Control. If the power
tool suddenly and unforeseeably rotates
around the drilling axis, it will switch off,
the rapid shut-off indicator (24) will light
up red and the worklight (14) will flash.
When rapid shut-off is activated, the
status indicator (27) flashes red.
(11) and then press it again.
For better control and precise position-
ing, the power tool starts at a low speed
and then increases to the set speed.
Adapted Speed Control is started up
automatically when the power tool is
switched on.
The integrated vibration damping function re-
duces the generated vibration.
Do not continue to use the power tool if the damping
element is damaged.
Remove the battery from the power tool before carry-
ing out work on the power tool (e.g. maintenance,
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