Bosch GBH 6-42 C Professional Notice Originale page 9

– Turn the lower gripping end of the auxiliary handle (8) an-
ticlockwise and swivel the auxiliary handle (8) into the re-
quired position. Then turn the lower gripping end of the
auxiliary handle (8) clockwise to retighten it.
Make sure that the retaining strap of the auxiliary handle
slots into the corresponding groove of the housing.
Changing the Tool
The dust protection cap (1) largely prevents the penetration
of drilling dust into the tool holder during operation. When
inserting the tool, make sure that the dust protection cap (1)
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.
Inserting the Application Tool (see figure A)
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 (2) back and insert the applica-
tion tool by turning it into the tool holder. Release the
locking sleeve (2) to lock the application tool.
– Check that it is locked by pulling on the tool.
Removing the application tool (see figure B)
– Push the locking sleeve (2) 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
Products that are only sold in AUS and NZ: Use a resid-
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ual current device (RCD) with a nominal residual current
of 30 mA or less.
The power tool with built-in Bluetooth
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Module GCY 301‑42 is equipped with a radio inter-
face. Local operating restrictions, e.g. in aircraft or
hospitals, must be observed.
Bosch Power Tools
Start-up
Pay attention to the mains voltage. The voltage of the
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power source must match the voltage specified on the
rating plate of the power tool.
Setting the Operating Mode
The operating mode of the power tool is selected using the
mode selector switch (3).
– To change the operating mode, turn the mode selector
switch (3) to the required position.
Note: Only change the operating mode when the power tool
is switched off. The power tool is automatically switched off
if you change the operating mode during ongoing operation.
Switching On/Off
– To switch on the power tool, press the on/off switch (6).
For low temperatures, the power tool reaches the full ham-
mer/impact capacity only after a certain time.
– To lock the on/off switch (6), press and hold it while also
pushing the lock-on button (5).
– To switch off the power tool, release the on/off
switch (6).
If the on/off switch (6) is locked, press the lock-off
button (5) first and then release it.
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 (6) to varying ex-
tents.
®
Low Energy
Applying light pressure to the on/off switch (6) 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: .
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
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