Bosch UniversalImpact 18 Original Instructions Manual page 15

The charging process begins as soon as you have inserted
the mains plug for the charger into the mains socket and the
charging connector into the port on the bottom of the
handle.
The battery charge indicator indicates the charging pro-
gress. The indicator flashes green during the charging pro-
cess. When the battery is fully charged, the battery charge
indicator is continuously lit green.
During the charging process, the handle of the power tool
will heat up. This is normal. If you are not planning to use the
power tool again soon, disconnect the charger from the
mains. The power tool cannot be used during the charging
process. It is not defective if it does not work during the
charging process. Follow the instructions on correct dis-
posal.
Removing the battery
To remove the battery , press the battery release button and
pull the battery to the rear and out of the power tool. Do not
use force to do this.
Changing the tool (see figure A)
Wear protective gloves when changing tools. There is
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a risk of injury when touching the application tools.
The drill spindle is locked when the on/off switch (9) is not
pressed. This makes it possible to change the application
tool in the drill chuck quickly, conveniently and easily.
Open the keyless chuck (2) by turning it in the direction of
rotation ➊ until the tool can be inserted. Insert the tool.
Firmly tighten the sleeve of the keyless chuck (2) by turning
it by hand in the rotational direction ➋ until it stops clicking.
This will automatically lock the drill chuck.
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.
Bosch Power Tools
Avoid dust accumulation at the workplace. Dust can
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easily ignite.
Operation
Starting Operation
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.
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.
Inserting the battery
Note: The use of batteries unsuitable for your power tool can
lead to malfunctions or damage to the power tool.
Set the rotational direction switch (8) to the middle position
to avoid unintentionally switching it on. Insert the charged
battery (7) into the handle until you feel it engage and it is
flush with the handle.
Setting the rotational direction (see figure B)
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 (9) is being pressed.
Right rotation: To drill and to drive in screws, press the ro-
tational direction switch (8) through to the left stop.
Left Rotation: To loosen and unscrew screws and nuts,
press the rotational direction switch (8) through to the right
stop.
Switching on/off
To start the power tool, press and hold the on/off switch
(9).
To switch off the power tool, release the on/off switch (9).
Adjusting the Speed
You can adjust the speed of the power tool when it is on by
pressing in the on/off switch (9) to varying extents.
A light pressure on the on/off switch (9) results in a low rota-
tional speed. Increased pressure on the switch causes an in-
crease in speed.
Preselecting the torque
The torque presetting ring (3) can be used to preselect the
required torque in 19 stages and "MAX". Once the set torque
has been reached, the application tool will be stopped.
Mechanical Gear Selection
You can press the gear selector switch (5) with the
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power tool off or on. You should not do this at full load
or maximum torque, however.
Gear I:
Low speed range; for working with a large drilling diameter
or for screwdriving.
Gear II:
High speed range; for working with a small drilling diameter.
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1 609 92A 5L3 | (15.01.2020)