18
| English
1 609 92A 3LC | (4.10.16)
Bosch Power Tools
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
. Place
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
. 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 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.
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
can ignite parts of the dust box.
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.
OBJ_BUCH-2877-003.book Page 18 Tuesday, October 4, 2016 4:02 PM
