Changing The Tool - Bosch AdvancedImpact 900 Originalbetriebsanleitung

18 | English
Unlock the setting ring (17) by turning it to the left
Place the dust container (11) or the adapter (26) flush
against the wall or workpiece. Move the tip of the drill bit to
the wall or workpiece.
Slide the setting ring (17) backwards until the distance
matches the required drilling depth X or place a wall plug on
the rail and slide the setting ring (17) backwards to the wall
plug. Lock the setting ring (17) by turning it to the right .
Take the wall plug out of the rail again. The drilling depth now
matches the set length X on the rail.
Note: It is important to have the exact drilling depth when
using wall plugs. If the drilled hole is too deep, the wall plug
will slip too far into the wall or workpiece. If the hole is too
small, the wall plug will stick out.
Emptying the dust container (see figure G)
The dust container (11) is enough for drilling about 25 holes
in masonry at a drilling depth of 30 mm with a drill bit dia-
meter of 6 mm.
To remove the dust container (11), press the side-mounted
unlocking buttons (12) and pull the dust container off down-
wards.
Empty the dust container (11) and reinsert it (until it can be
heard to engage).
Removing the Drill Assistant
Press and hold the clip (16) of the dust collection
device (13) and pull the dust collection device (13) off to-
wards the front.
Turn the wing bolt (18) anticlockwise until the auxiliary
handle (9) can be moved and pull the auxiliary handle (9) off
the power tool.
Unlock the setting ring (17) by turning it to the left
Hold the auxiliary handle (9) in place and slide the rail to-
wards the auxiliary handle until it can be heard to engage.
Dust Extraction/Dust Container
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.
1 609 92A 57F | (27.08.2019)
Use the dust box only when working on concrete and
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stone. Wood chips and plastic chips can easily lead to
clogging.
Warning: Danger of fire! Do not work on any metallic
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materials with the dust container mounted. Hot metal
chips can ignite parts of the dust container.
Please observe the following instructions to optimise your
use of the dust container:
– Ensure that the dust container is placed flush against the
workpiece or wall. This also makes it easier to drill at a
right angle.
– When you reach the required drilling depth, pull the drill
bit out of the drill hole first and then switch off the impact
drill.
– The dust protection ring (15) can wear, especially when
working with large drill-bit diameters. Replace the dust
protection ring when worn/damaged.

Changing the Tool

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Keyless chuck (see figure H)
The drill spindle is locked when the on/off switch (6) is not
pressed. This makes it possible to change the application
tool in the drill chuck quickly, conveniently and easily.
Open the keyless chuck (1) 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 (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.
Screwdriving tools
You should always use a universal bit holder (24) when using
screwdriver bits (25). 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.
Bosch Power Tools