Dust/Chip Extraction - Bosch GBH 187-LI Professional Originalbetriebsanleitung

22 | English
The dust protection cap (3) largely prevents the penetration
of drilling dust into the tool holder during operation. When
inserting the tool, make sure that the dust protection cap (3)
does not become damaged.
Replace a damaged dust protection cap immediately.
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It is recommended that you have use an after-sales
service for this.
Changing the tool (SDS plus)
Inserting the SDS plus Application Tool (see figures B1–
B2)
– Hold the rear sleeve (5) of the drill chuck with one hand.
Use your other hand to fully open the tool holder by turn-
ing the front sleeve (4).
– Clean and lightly grease the shank of the SDS plus applic-
ation tool.
– Insert the SDS plus application tool into the tool holder
while turning it until it locks automatically.
– Check that it is locked by pulling on the tool.
As a requirement of the system, the SDS-plus application
tool can move freely. This causes a certain radial run-out at
no-load, which has no effect on the accuracy of the drill hole,
as the drill bit centres itself upon drilling.
Removing SDS-plus application tools (see figure B3)
– Push the rear sleeve (5) back and remove the SDS plus
application tool.
Changing the Tool (cylindrical/hexagonal shank)
Inserting the Application Tool (see figure C1)
Note: Application tools that do not have SDS plus must not
be used for hammer drilling or chiselling. Tools without SDS
plus and their drill chucks are damaged by hammer drilling
or chiselling.
Note: Only use tools with a cylindrical or hexagonal shank in
the drilling operating mode.
Do not close the drill chuck by switching on the power
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tool. The drill can be ejected. This poses a risk of injury.
Note: Only use application tools with a cylindrical or
hexagonal shank with a shank diameter of 6 to 10 mm.
– Turn the impact/mode selector switch (8) to the "drilling"
position.
– Hold the rear sleeve (5) of the drill chuck with one hand.
Use your other hand to open the tool holder by turning
the front sleeve (4) until the application tool can be inser-
ted.
– Insert the cylindrical or hexagonal application tool into
the drill chuck.
– Hold the rear sleeve (5) in place with one hand and, with
the other hand, turn the front sleeve (4) firmly in the dir-
ection of the arrow until you hear a clear clicking sound.
– Check that it is seated securely by pulling on the tool.
Only insert the application tool if the power tool is switched
off.
Removing the Application Tool (see figure C2)
– Hold the rear sleeve (5) of the drill chuck with one hand.
Use your other hand to open the tool holder by turning
1 609 92A 82V | (08.09.2022)
the front sleeve (4) in the direction of the arrow until the
application tool can be removed.
– Remove the application tool.
Do not open the drill chuck by switching on the power
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tool. The drill can be ejected. This poses a risk of injury.

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.
Dust extraction with GDE 18V-16 (accessory)
(see figure H)
The GDE 18V-16 dust extraction attachment (accessory) is
required for extracting concrete dust and stone dust.
This dust extraction system is not suitable for dust from
wood, metal and plastic or for dust which is harmful to one's
health (e.g. asbestos).
Operation
Start-up
Setting the Operating Mode
The operating mode of the power tool is selected using the
impact/mode selector switch (8).
– To change the operating mode, press the release
button (7) and turn the impact/mode selector switch (8)
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 into concrete or
stone
Position for drilling without impact in wood,
metal, ceramic and plastic and for screwdriv-
ing
Bosch Power Tools