Bosch GBH 18V-40 C Professional Notice Originale page 10

10 | English
Changing the Tool
The dust protection cap (3) largely prevents the penetration
of drilling dust into the tool holder during operation. When
inserting the tool, make sure that the dust protection cap (3)
does not become damaged.
Replace a damaged dust protection cap immediately.
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It is recommended that you have use an after-sales
service for this.
Changing the Tool (SDS max)
Inserting the Application Tool (see figure C)
With the SDS-max tool holder, you can change the applica-
tion tool simply and easily without additional aids.
– Clean and lightly grease the shank of the application tool.
– Push the locking sleeve (4) back and insert the applica-
tion tool by turning it into the tool holder. Release the
locking sleeve (4) to lock the application tool.
– Check that it is locked by pulling on the tool.
Removing the application tool (see figure D)
– Push the locking sleeve (4) back and remove the applica-
tion tool.
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.
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.
Observe the relevant regulations in your country for the ma-
terials to be worked.
Avoid dust accumulation at the workplace. Dust can
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easily ignite.
Operation
Start-up
Ensure that the cover (15) of the Bluetooth
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Module GCY 42 is closed during operation. This will pre-
vent dust from getting in.
Setting the Operating Mode (see figure E)
The operating mode of the power tool is selected using the
mode selector switch (5).
– To change the operating mode, turn the mode selector
switch (5) to the required position.
Note: Only change the operating mode when the power tool
is switched off. Otherwise, the power tool may become dam-
aged.
Note: If you switch to a different operating mode while the
on/off switch is locked, the power tool will switch off.
1 609 92A 88Y | (24.10.2022)
Switching On/Off
– If necessary, release the lock-on button (7) for the on/off
switch.
– To switch on the power tool, press the on/off switch (9).
The worklight (11) lights up when the on/off switch (9) is
lightly or fully pressed, allowing the work area to be illumin-
ated in poor lighting conditions.
– To switch off the power tool, release the on/off switch
(9).
For low temperatures, the power tool reaches the full ham-
mer/impact capacity only after a certain time.
Adjusting the Speed/Impact Rate
You can adjust the speed/impact rate of the power tool when
it is on by pressing in the on/off switch (9) to varying ex-
tents.
Applying light pressure to the on/off switch (9) results in a
low rotational speed/impact rate. Applying increasing pres-
sure to the switch increases the speed/impact rate.
You can also control the speed on the user interface and/or
via a smartphone app: .
Changing the chiselling position (Vario-Lock)
You can lock the chisel in 16 different positions, allowing
you to select the optimum working position for each task.
– Insert the chisel into the tool holder.
– Turn the mode selector switch (5) to the "drilling" posi-
®
Low Energy
tion.
– Turn the application tool to the required chisel position.
– Turn the mode selector switch (5) to the "chiselling" posi-
tion. With this, the tool holder is locked.
Chiselling with lock function
To chisel for extended periods without pressing the on/off
switch (9), lock the on/off switch in "chiselling" operating
mode.
– To lock the power tool, press the on/off switch (9) down
fully whilst simultaneously pressing the lock-on
switch (7).
– To switch the lock off, press the lock-on button (7) again.
Position for hammer drilling
If the application tool does not start rotating
straight away, run the power tool slowly until
the application tool starts rotating.
Vario-Lock position for changing the chiselling
position
Position for chiselling
Bosch Power Tools