English |
17
Bosch Power Tools
1 609 929 W81 | (13.7.10)
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
¢
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.
Switching On and Off
– To
start
the machine, press the On/Off
switch
6
at the top (
I
) until it locks.
– To switch
off
the machine, press the On/Off
switch
6
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.
Setting the Speed/Impact Rate
The electronic control enables stepless speed
and impact preselection in accordance with the
material to be worked.
The constant electronic control keeps the prese-
lected speed and impact rate nearly constant
between no-load and load conditions.
Select the speed with the thumbwheel
7
accord-
ing to the material.
When plugging the plug into the socket outlet or
after a power failure, the constant electronic
control automatically sets the highest speed
and impact rate. This ensures working at opti-
mum performance despite too low preadjust-
ment of the thumbwheel
7
.
The data in the following table are recommend-
ed values.
Changing the Chiselling Position (Vario-Lock)
The chisel can be locked in 12 positions. In this
manner, the optimum working position can be
set for each application.
– Insert the chisel into the tool holder.
– Push the chisel adjustment ring
3
forward
and turn the chisel to the required position
with the chisel adjustment ring
3
.
– Release the chisel adjustment ring
3
and turn
the chisel until it latches.
Application
Thumbwheel 7
Working roughcast/light
building materials
Removing tiles
Working brick
Working concrete
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