Bosch Professional GBH 2-20 D Manual Original página 12

OBJ_BUCH-1110-001.book Page 12 Thursday, March 18, 2010 2:24 PM
12 | English
Use appropriate detectors to determine if
utility lines are hidden in the work area or
call the local utility company for assistance.
Contact with electric lines can lead to fire
and electric shock. Damaging a gas line can
lead to explosion. Penetrating a water line
causes property damage or may cause an
electric shock.
Firmly tighten the auxiliary handle, hold the
machine firmly with both hands while work-
ing and keep proper footing and balance at
all times. The machine is guided more secure
with both hands.
Secure the workpiece. A workpiece clamped
with clamping devices or in a vice is held
more secure than by hand.
Keep your workplace clean. Blends of mate-
rials are particularly dangerous. Dust from
light alloys can burn or explode.
For drilling without impact in wood, metal,
ceramic and plastic as well as for screwdriv-
ing, tools without SDS-plus are used (e.g.,
drills with cylindrical shank). For these tools,
a keyless chuck or a key type drill chuck are
required.
Replace a damaged dust protection cap im-
mediately. The dust protection cap largely
prevents the penetration of drilling dust into
the tool holder during operation. When in-
serting the tool, pay attention that the dust
protection cap is not damaged.
Symbols
The following symbols are important for reading and understanding the operating instructions.
Please take note of the symbols and their meaning. The correct interpretation of the symbols will
help you to use the machine in a better and safer manner.
Symbol Meaning
GBH 2-20 D: Rotary Hammer
Grey-marked area: Handle (in-
sulated gripping surface)
Read all safety warnings and
all instructions
1 619 929 855 | (18.3.10)
Dusts from materials such as lead-contain-
ing coatings, some wood types, minerals
and metal can be harmful to one's health
and cause allergic reactions, lead to respi-
ratory infections and/or cancer. Materials
containing asbestos may only be worked by
specialists.
– Use dust extraction whenever possible.
– Provide for good ventilation of the work-
ing place.
– It is recommended to wear a P2 filter-
class respirator.
Observe the relevant regulations in your
country for the materials to be worked.
If the application tool should become
blocked, switch the machine off. Loosen
the application tool.
Before switching on the power tool, make
sure that the application tool moves freely.
When switching on with a blocked drilling
tool, high torque reaction can occur.
Always wait until the machine has come to
a complete stop before placing it down. The
tool insert can jam and lead to loss of control
over the power tool.
Symbol Meaning
Article number (x xxx xxx xxx)
clearly identifies the power
tool.
Before any work on the ma-
chine itself, pull the mains plug
from the socket outlet
Bosch Power Tools