20
| English
1 609 929 W79 | (22/4/10)
Bosch Power Tools
Dust/Chip Extraction
Dusts 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 dusts can cause allergic reac-
tions and/or lead to respiratory infections of the
user or bystanders.
Certain dusts, such as oak or beech dust, are
considered as carcinogenic, especially in con-
nection with wood-treatment additives (chro-
mate, 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 materials to be worked.
Operation
Starting Operation
f
Observe correct mains voltage! The voltage
of the power source must agree with the
voltage specified on the nameplate of the
machine. Power tools marked with 230 V
can also be operated with 220 V.
Setting the Operating Mode
The operating mode of the power tool is select-
ed with the mode selector switch
3
.
Note:
Change the operating mode only when the
machine is switched off! Otherwise, the ma-
chine can be damaged.
– Turn the mode selector switch
3
to the re-
quested position.
In the “
chiselling
” position, the impact rate
preselected with the thumbwheel
7
is automat-
ically increased when switching on; this causes
the power tool to operate with increased capac-
ity when chiselling.
Switching On/Off in Drilling Mode
– To
start
the machine, press the On/Off
switch
5
and keep it pressed.
– To switch off the machine,
release
the
On/Off switch
5
.
Switching On/Off in Chiselling Mode
– To
start
the machine, press the On/Off
switch
5
at the top (
I
) until it locks.
– To switch
off
the machine, press the On/Off
switch
5
at the bottom (
0
) and release it.
For low temperatures, the power tool reaches
the full hammer/impact capacity only after a cer-
tain time.
Position for
hammer drilling
When the drilling tool does not im-
mediately rotate upon switching on,
allow the machine to run slowly un-
til the drilling tool rotates.
Vario-Lock
position for adjustment
of the chiselling position
Position for
chiselling
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