Dust/Chip Extraction; Starting Operation - Bosch GSB 16 RE Professional Mode D'emploi

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Firmly tighten the sleeve of the keyless chuck (1) by turning
it by hand in the rotational direction ➋ until it stops clicking.
This will automatically lock the drill chuck.
The lock will disengage again if you turn the sleeve in the op-
posite direction to remove the tool.
Keyed chuck (see figure C)
Open the keyed chuck (10) by turning it until the tool can be
inserted. Insert the tool.
Insert the chuck key (9) into the corresponding holes of the
keyed chuck (10) and clamp the tool evenly.
Screwdriving tools (see figure D)
You should always use a universal bit holder (12) when using
screwdriver bits (11). Only use screwdriver bits that fit the
screw head.
For screwdriving, make sure the "drilling/impact drilling" se-
lector switch (2) is always set to the "drilling" symbol.
Changing the drill chuck
Pull the plug out of the socket before carrying out any
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work on the power tool.
If your power tool does not have a drill spindle locking
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mechanism, you must have the drill chuck changed by an
authorised after-sales service centre for Bosch power
tools.
Removing the Drill Chuck (see figure E)
Remove the auxiliary handle (7).
Insert a steel pin with a diameter of 4 mm and a length of ap-
prox. 50 mm into the hole on the spindle collar to lock the
drill spindle in place. Clamp a hex key (13) in the keyless
chuck (1), leading with the short shaft.
Place the power tool on a firm surface, e.g. a work bench.
Hold the power tool in place and loosen the keyless chuck
(1) by turning the hex key (13) in the rotational direction ➊.
A tightly seated keyless chuck is loosened with a light blow
on the long shaft of the hex key (13). Remove the hex key
from the keyless chuck and completely unscrew the keyless
chuck from the power tool.
Fitting the Drill Chuck (see figure F)
To fit the keyless chuck, perform the same steps in reverse
order.
After successfully fitting the drill chuck, remove the
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steel pin from the hole again.
The drill chuck must be tightened using a tight-
ening torque of approx. 30–35 Nm.

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-
1 609 92A 5B6 | (01.12.2020)
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

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.
Setting the rotational direction (see figures G–H)
Only push the rotational direction switch (3) when the
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power tool is not in use.
The rotational direction switch (3) is used to change the ro-
tational direction of the power tool. However, this is not pos-
sible while the on/off switch (5) is being pressed.
Clockwise rotation: To drill and drive in screws, slide the
rotational direction switch (3) upwards on the left-hand side
and downwards on the right-hand side at the same time.
Anti-clockwise rotation: To loosen and unscrew screws and
nuts, slide the rotational direction switch (3) downwards on
the left-hand side and upwards on the right-hand side at the
same time.
Setting the Operating Mode
Drilling and screwdriving
Set the selector switch (2) to the "drilling"
symbol.
Impact drilling
Set the selector switch (2) to the "impact
drilling" symbol.
The selector switch (2) clicks into place and
can also be actuated when the motor is running.
Switching on/off
To start the power tool, press and hold the on/off switch
(5).
Press the lock-on button (4) to lock the on/off switch (5) in
this position.
To switch off the power tool, release the on/off switch (5);
or, if the switch is locked with the lock-on button (4), briefly
press the on/off switch (5) 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 (5) to varying ex-
tents.
Bosch Power Tools