Noise/Vibration Information; Changing The Tool; Starting Operation - Bosch Professional GWB 10 RE Manual Original

OBJ_BUCH-493-001.book Page 14 Monday, September 10, 2007 1:50 PM
14 | English

Noise/Vibration Information

Measured values determined according to
EN 60745.
Typically the A-weighted noise levels of the prod-
uct are: Sound pressure level 80 dB(A); Sound
power level 91 dB(A). Uncertainty K =3 dB.
Wear hearing protection!
Vibration total values (triax vector sum) deter-
mined according to EN 60745:
Drilling into metal: Vibration emission value
2
a = 2.2 m/s , Uncertainty K =1.5 m/s
h
Screwdriving: Vibration emission value
2
a = 2.9 m/s , Uncertainty K =1.5 m/s
h
The vibration emission level given in this informa-
tion sheet has been measured in accordance
with a standardised test given in EN 60745 and
may be used to compare one tool with another. It
may be used for a preliminary assessment of ex-
posure.
The declared vibration emission level represents
the main applications of the tool. However if the
tool is used for different applications, with differ-
ent accessories or poorly maintained, the vibra-
tion emission may differ. This may significantly
increase the exposure level over the total work-
ing period.
An estimation of the level of exposure to vibra-
tion should also take into account the times
when the tool is switched off or when it is run-
ning but not actually doing the job. This may sig-
nificantly reduce the exposure level over the total
working period.
Identify additional safety measures to protect the
operator from the effects of vibration such as:
maintain the tool and the accessories, keep the
hands warm, organisation of work patterns.
1 609 929 M44 | (10.9.07)
Assembly

Changing the Tool

Before any work on the machine itself, pull
the mains plug.
Open the key type drill chuck 5 by turning until
the tool can be inserted. Insert the tool.
Insert the chuck key 3 into the corresponding
holes of the key type drill chuck 5 and clamp the
tool uniformly.
2
,
Screwdriver Tools
2
.
When working with screwdriver bits , a universal
bit holder should always be used. Use only
screwdriver bits that fit the screw head.
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.
Reversing the Rotational Direction
Actuate the rotational direction switch 1 on-
ly when the machine is at a standstill.
The rotational direction switch 1 is used to re-
verse the rotational direction of the machine.
However, this is not possible with the On/Off
switch 4 actuated.
Right rotation: For drilling and driving in screws,
push the rotational direction switch 1 to "R".
Left rotation: For loosening or unscrewing
screws and nuts, push the rotational direction
switch 1 to "L".
Bosch Power Tools