Berner BACSDB-1 18V Manual Original página 16

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 con-
sidered carcinogenic, especially in connection
with wood-treatment additives (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 res-
pirator.
Observe the relevant regulations in your country
for the materials to be worked.
Avoid dust accumulation at the workplace.
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Dust can easily ignite.
Operation
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Starting Operation
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Inserting the battery
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Note: The use of batteries unsuitable for your
power tool can lead to malfunctions or damage to
the power tool.
Push the charged battery (6) into the base of the
power tool from the front until the battery is se-
curely locked.
Setting the rotational direction (see figure B)
The rotational direction switch (9) is used to
change the rotational direction of the power tool.
However, this is not possible while the on/off
switch (10) is being pressed.
Right rotation: To drill and to drive in screws,
press the rotational direction switch (9) through to
the left stop.
Left Rotation: To loosen and unscrew screws and
nuts, press the rotational direction switch (9)
through to the right stop.
Switching on/off
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To start the power tool, press and hold the on/off
switch (10).
The LED (8) lights up when the on/off switch (10)
is lightly or fully pressed, meaning that the work
area is illuminated in poor lighting conditions.
To switch off the power tool, release the on/off
switch (10).
Adjusting the Speed
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You can adjust the speed of the power tool when
it is on by pressing in the on/off switch (10) to
varying extents.
A light pressure on the on/off switch (10) results
in a low rotational speed. Increased pressure on
the switch causes an increase in speed.
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Preselecting the Torque
The torque presetting ring (3) can be used to
preselect the required torque in 20 stages. When
the correct setting is used, the application tool will
be stopped when the screw is driven flush into the
material or once the set torque has been reached.
In position the overload clutch is deactivated,
e.g. for drilling.
When unscrewing screws, you can select a higher
setting or set the tool to the
Mechanical gear selection
Only operate the gear selector (4) when the
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power tool is not in use.
First gear:
Low speed range; for working with a large drilling
diameter or for screwdriving.
Second gear:
High speed range; for working with a small drilling
diameter.
Always push the gear selector switch as far
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as it will go. Otherwise, the power tool may be-
come damaged.
Temperature-dependent overload protection
When used as intended, the power tool cannot be
overloaded. In the event of overloading or the
temperature rising/falling outside the permitted
operating temperature range, the speed will be re-
duced. The power tool will not run at full speed
again until the permitted operating temperature
has been reached.
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Fully automatic spindle lock (Auto-Lock)
The drill spindle, and therefore the tool holder(1),
are locked when the on/off switch (10) is not
pressed.
This enables screws to be screwed in even when
the battery (6) is empty and allows the power tool
to be used as a screwdriver.
Practical advice
Only apply the power tool to the screw when
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the tool is switched off. Rotating application
tools can slip off.
Before screwing larger, longer screws into hard
materials, it is advisable to pre-drill a pilot hole
with the core diameter of the thread to approx.
2/3 of the screw length.
An auxiliary tool can be used to remove the screw-
driver bit or universal bit holder.
Belt clip
You can use the belt clip (5) to hang the power
tool on a belt, for example. You then have both
hands free and the power tool is always at hand.
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symbol.
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1 609 92A 5NK • 9.4.20