Dust/Chip Extraction; Operation - Bosch Uneo Maxx Original Instructions Manual

8 | English
Removing the Keyless Chuck
– Push the locking sleeve (3) back and remove the keyless
chuck (19).
Changing the Tool
The SDS-Quick tool holder enables you to
change the application tool easily and con-
veniently without the use of additional tools.
The system requires the SDS-Quick application tool to be
able to move freely. This causes a 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.
The SDS-Quick tool holder can also hold
various types of drill bit with hexagonal
shanks. You can find more information on
this on the accessories page at the end of
these instructions.
The dust protection cap (2) largely prevents the penetration
of drilling dust into the tool holder during operation. When
inserting the tool, make sure that the dust protection cap (2)
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.
Inserting SDS-Quick application tools (see figure C)
– Clean and lightly grease the insertion end of the applica-
tion tool.
– Insert the application tool into the tool holder while turn-
ing it until it locks automatically.
– Check the latching by pulling the tool.
Removing SDS-Quick application tools (see figure D)
– Push the locking sleeve (3) back and remove the applica-
tion tool.
Inserting application tools that do not have SDS-Quick
(see figure E)
Note: Application tools that do not have SDS-Quick must not
be used for hammer drilling. Hammer drilling will damage
tools without SDS-Quick along with their chucks.
– Insert the keyless chuck (19).
– Hold the rear sleeve (21) of the keyless chuck (19) firmly
and turn the front sleeve (20) anti-clockwise until the tool
can be inserted. Insert the tool.
– Hold the rear sleeve of the keyless chuck (19) and firmly
tighten the front sleeve by hand in a clockwise direction
until it stops clicking. This will automatically lock the drill
chuck.
– Check that it is seated securely by pulling the tool.
Note: If the tool holder was unscrewed all the way, a scrap-
ing sound may be heard while retightening the tool holder
and it may not fully tighten.
In this case, turn the front sleeve (20) anti-clockwise by one
turn. This will allow the tool holder to be fully tightened.
1 609 92A 4KJ | (25.07.2018)
– Turn the "Drilling/hammer drilling" selector switch (4) to
the "drilling" position.
Removing application tools that do not have SDS-Quick
(see figure F)
Hold the rear sleeve (21) of the keyless chuck firmly and
turn the front sleeve (20) of the keyless chuck anti-clock-
wise until the application tool can be removed.

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.
Avoid dust accumulation at the workplace. Dust can
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easily ignite.

Operation

Start-up
Inserting the Battery
Use only original Bosch lithium-ion batteries with the
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voltage stated on the type plate of your power tool.
Using other batteries can lead to injuries and pose a fire
hazard.
– Set the rotational direction switch (7) to the middle posi-
tion to avoid unintentionally switching it on. Insert the
charged battery (10) into the handle until you feel it en-
gage and it is flush with the handle.
Setting the Operating Mode
Use the "Drilling/hammer drilling" selector switch (4) to se-
lect the power tool's operating mode.
Note: Only change the operating mode when the power
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tool is switched off. Otherwise, the power tool may be-
come damaged.
– To change the operating mode, slide the "Drilling/hammer
drilling" selector switch (4) to the required position.
Position for hammer drilling into concrete
or stone
Position for drilling without impact in wood,
metal, ceramic and plastic and for screw-
driving
Bosch Power Tools