English |
19
Bosch Power Tools
1 609 929 M09 | (26.9.07)
To achieve optimum extraction results, please
observe the following notes:
–
Pay attention that the extraction device faces
flush against the workpiece or the wall. This
also makes drilling at a right angle easier.
–
When using the extraction device, always
work with the maximum speed.
–
After reaching the desired drilling depth, pull
the drill bit out of the drill hole first and then
switch off the impact drill.
–
Check the condition of the filter element
17
regularly. Replace a damaged filter element
immediately.
–
The dust protection ring
14
can wear, espe-
cially when working with large drill-bit diame-
ters. Replace the dust protection ring when
worn/damaged.
Mounting the Extraction Device
Guide the extraction device
9
from the front to-
ward the bottom side of the impact drill. Pay at-
tention that the extraction device
9
faces flush
against the casing and that it is locked.
Cleaning the Extraction Device (see figure A)
Attach the locking latch
15
or empty the dust col-
lector
13
before placing down the extraction de-
vice.
The dust collector
13
is sufficient for approx. 20
drillings with a drilling diameter of 6 mm.
When the extraction force diminishes or when
the level indicator
18
is full, the dust collector
13
must be emptied. For this, press on the riffled
surface of the release button
12
and take off the
dust collector
13
.
Empty and clean the dust collector
13
. Clean the
filter element
17
by gently striking or tapping
against it.
Check the filter element
17
for damage and re-
place it as required.
For this, as an example, pry off the holder of the
filter element
17
(
n
) and change the filter ele-
ment
17
including the holder (
o
). When placing
on the holder again, make sure that the rubber
gasket is inserted.
Reattach the dust collector
13
again and lock it
by pressing against the smooth surface of the re-
lease button
12
.
Removing the Extraction Device
For removal of the extraction device
9
, push the
release button
16
to the right or left and pull off
the extraction device
9
toward the front.
Auxiliary Handle
f
Operate your machine only with the auxiliary
handle 8.
The auxiliary handle
8
can be set to any position
for a secure and low-fatigue working posture.
Turn the wing bolt for adjustment of the auxiliary
handle
2
in anticlockwise direction and set the
auxiliary handle
8
to the required position. Then
tighten the wing bolt
2
again in clockwise direc-
tion.
Adjusting the Drilling Depth (see figure B–C)
With the extraction device mounted, the drilling
depth “
X
” can be adjusted.
Insert a drill bit into the drill chuck and clamp the
drill bit, see section “Changing the Tool”,
page 20. Rotate the collar for the depth stop
11
upward until it can be moved on the telescopic
guide
10
. Place the machine, without switching it
on, firmly against the surface to be drilled until
the drill bit touches the surface.
Read the scale value of the telescopic guide
10
on the collar
11
. Add this value to the requested
drilling depth
X
. Slide the collar
11
to the calcu-
lated scale value and then rotate the collar
11
downward to lock the determined clearance.
OBJ_BUCH-444-001.book Page 19 Wednesday, September 26, 2007 8:12 AM
