Changing The Tool - Bosch AdvancedImpact 900 Notice Originale

OBJ_BUCH-2877-003.book Page 18 Tuesday, October 4, 2016 4:02 PM
18 | English
Adjusting the Drilling Depth (see figures E – F)
Mount the drill bit (see section "Changing the Tool").
You can use the setting ring 17 to set the required drilling
depth X.
Unlock the setting ring 17 by turning it to the left
the dust box 11 or the mounting 26 flush against the wall or
workpiece. Move the tip of the drill bit to the wall or work-
piece.
Slide the setting ring 17 backward until the distance matches
the required drilling depth X or place a wall plug on the rail
and slide the setting ring 17 backward to the wall plug. Lock
the setting ring 17 by turning it to the right
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 us-
ing 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 Box (see figure G)
The dust box 11 is enough for drilling about 25 holes in ma-
sonry at a drilling depth of 30 mm with a drill bit diameter of
6 mm.
– To remove the dust box 11, press the side-mounted un-
locking buttons 12 and pull the dust box off in a downward
direction.
– Empty the dust box 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 box 13 off toward the front.
– Turn the wing bolt 18 counterclockwise 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 Box
 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 car-
cinogenic, especially in connection with wood-treatment
additives (chromate, wood preservative). Materials con-
taining asbestos may only be worked by specialists.
– Use a dust extraction system suitable for the material
being worked.
– 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
materials to be worked.
 Prevent dust accumulation at the workplace. Dust can
easily ignite.
1 609 92A 3LC | (4.10.16)
 Use the dust box only when working on concrete and
stone. Wood chips and plastic chips can easily lead to
clogging.
 Warning: Danger of fire! Do not work on any metallic
materials with the dust box mounted. Hot metal chips
. Place
can ignite parts of the dust box.
. Take the wall
Please observe the following instructions to optimise your use
of the dust box:
– Ensure that the dust box is placed flush against the work-
piece or wall. This also makes it easier to drill at a right an-
gle.
– After reaching the desired 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

Keyless Chuck (see figure H)
The drill spindle is locked when the On/Off switch 6 is not
pressed. This makes quick, convenient and easy changing of
.
the tool in the drill chuck possible.
Open the keyless chuck 1 by turning in rotation direction ,
until the tool can be inserted. Insert the tool.
Firmly tighten the collar of the keyless chuck 1 by hand in ro-
tation direction  until the locking action ("click") is no longer
heard. This automatically locks the chuck.
The locking is released again to remove the tool when the col-
lar is turned in the opposite direction.
Screwdriver Tools
When working with screwdriver bits 25, a universal bit holder
24 should always be used. Use only screwdriver bits that fit
the screw head.
For driving screws, always position the "Drilling/Impact Drill-
ing" selector switch 2 to the "Drilling" symbol.
Bosch Power Tools