Starting Operation - Würth BS 12-A MULTI Traduction Des Instructions De Service D'origine

OBJ_BUCH-3342-001.book Page 19 Thursday, December 14, 2017 9:18 AM
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 addi-
tives (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 mate-
rials to be worked.
 Prevent dust accumulation at the workplace.
Dust can easily ignite.

Starting Operation

Inserting the battery
Note: Use of batteries not suitable for the machine can lead
to malfunctions of or cause damage to the power tool.
Set the rotational direction switch 6 to the centre position in
order to avoid unintentional starting. Insert the charged bat-
tery 5 into the handle so that it can be felt to engage and
faces flush against the handle.
Reversing the rotational direction
(see figure H)
The rotational direction switch 6 is used to reverse the rota-
tional direction of the machine. However, this is not possible
with the On/Off switch 7 actuated.
Right Rotation: For drilling and driving in screws, push the
rotational direction switch 6 left to the stop.
Left Rotation: For loosening and unscrewing screws and
nuts, press the rotational direction switch 6 through to the right
stop.
Setting the torque
With the torque presetting ring 2 the required torque setting
can be preselected in 15 steps. With the correct setting, the
insert tool is stopped as soon as the screw is screwed flush into
the material or when the adjusted torque is reached. The
safety clutch is deactivated in the "
ing.
Select a higher setting or switch to the "
unscrewing screws.
Gear selection, mechanical
 Actuate the gear selector 3 only when the
machine is at a standstill.
Two speed ranges can be preselected with the gear selector
3.
Gear 1:
Low speed range; for screwdriving or for working with a large
drilling diameter.
Gear 2:
High speed range; for working with a small drilling diameter.
 Always push the gear selector through to the
stop. Otherwise, the machine can become damaged.
Switching On and Off
To start the machine, press the On/Off switch 7 and keep it
pressed.
The work light 9 illuminates when the On/Off switch 7 is
lightly or fully pressed and allows the illumination of the work
area in poor lighting conditions.
The worklight 9 will remain lit for approx. 10 seconds when
the On/Off switch 7 has been released.
To save energy, only switch the power tool on when using it.
Adjusting the Speed
The speed of the switched-on power tool can be variably
adjusted, depending on how far the On/Off switch 7 is
pressed.
Light pressure on the On/Off switch 7 results in a low rota-
tional speed. Further pressure on the switch results in an
increase in speed.
Fully automatic spindle locking
(Auto-lock)
The drill spindle and therefore the mounting are locked when
the On/Off switch 7 is not pressed.
This enables screws to be screwed in, even when the battery
is empty and allows for the machine to be used as a screw-
driver.
Temperature Dependent Overload
Protection
In normal conditions of use, the power tool cannot be over-
loaded. If the power tool is overloaded or not kept within the
permitted operating temperature range, the power output is
" position, e. g. for drill-
reduced or the power tool is switched off. The power tool will
not run at full power output again until the permitted operating
" symbol when
temperature has been reached.
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