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Dust/Chip Extraction
The dust from materials such as lead paint, some types of
wood, minerals and metal can be harmful to human health.
Touching or breathing in this dust can trigger allergic reac-
tions and/or cause respiratory illnesses in the user or in
people in the near vicinity.
Certain dusts, such as oak or beech dust, are classified as
carcinogenic, especially in conjunction with wood treatment
additives (chromate, wood preservative). Materials contain-
ing asbestos may only be machined by specialists.
– Use a dust extraction system that is suitable for the ma-
terial wherever possible.
– Provide good ventilation at the workplace.
– It is advisable to wear a P2 filter class breathing mask.
The regulations on the material being machined that apply in
the country of use must be observed.
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.
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. Power tools marked
with 230 V can also be operated with 220 V.
Setting the Operating Mode
The operating mode of the power tool is selected using the
impact/mode selector switch (10).
– To change the operating mode, press the release
button (9) and turn the impact/mode selector
switch (10) until it clicks into the required position.
Note: Only change the operating mode when the power tool
is switched off. Otherwise, the power tool may become dam-
aged.
Position for hammer drilling in concrete or
stone
Position for drilling without impact in wood,
metal, ceramic and plastic and for screw-
driving and thread cutting
Vario-Lock position for adjusting the chisel
position
The impact/mode selector switch (10) will
not engage in this position.
Position for chiselling
Bosch Power Tools
Setting the rotational direction (see figure G)
The rotational direction switch (8) is used to change the ro-
tational direction of the power tool. However, this is not pos-
sible while the on/off switch (6) is being pressed.
Only operate the rotational direction switch (8) when
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the power tool is not in use.
Always set the rotational direction to clockwise rotation for
hammer drilling, drilling and chiselling.
– Clockwise rotation: To drill and to drive in screws, press
the rotational direction switch (8) all the way to the right.
– Anticlockwise rotation: To loosen or unscrew screws
and nuts, press the rotational direction switch (8) all the
way to the left.
Switching On/Off
– To switch on the power tool, press the on/off switch (6).
– 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 switch
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.
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.
Preselecting the speed/impact rate
You can preselect the required speed using the speed
preselection thumbwheel (7), even during operation.
Due to the limitation, the on/off switch (6) can only be
pushed in as far as the preselected limit.
Changing the chiselling position (Vario-Lock)
You can lock the chisel in 36 different positions, so you can
select the optimum working position for each task.
– Insert the chisel into the tool holder.
– Turn the impact/mode selector switch (10) to the "Vario-
Lock" position.
– Turn the application tool to the required chisel position.
– Turn the impact/mode selector switch (10) to the "chis-
elling" position. With this, the tool holder is locked.
– Set the rotational direction for chiselling to clockwise.
Practical Advice
Setting the drilling depth (see figure H)
You can use the depth stop (14) to set the required drilling
depth X.
– Press the button for depth stop adjustment (11) and in-
sert the depth stop into the auxiliary handle (13).
The fluting on the depth stop (14) must face downwards.
– Insert the SDS-plus application tool into the SDS-plus tool
holder (2) to the stop. Otherwise, the movability of the
English | 17
1 609 92A 8MY | (16.02.2023)
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