Bosch GWS Professional 20-230 JH Manual Original página 18

OBJ_BUCH-1686-003.book Page 19 Wednesday, April 23, 2014 3:36 PM
Angle Grinder
GWS ...
Rated speed min
Grinding disc diameter, max.
Thread of grinder spindle
Thread length (max.) of grind-
er spindle
Restarting Protection
Reduced starting current
Weight according to
EPTA-Procedure 01/2003
– with vibration-damping
auxiliary handle
– with standard-auxiliary
handle
Protection class
The values given are valid for a nominal voltage [U] of 230 V. For differ-
ent voltages and models for specific countries, these values can vary.
Only for power tools without reduced starting current: Starting cycles
generate brief voltage drops. Interference with other equipment/ma-
chines may occur in case of unfavourable mains system conditions. Mal-
functions are not to be expected for system impedances below
0.25 ohm.
Noise/Vibration Information
Measured sound values determined according to EN 60745.
Typically the A-weighted noise levels of the product are:
Sound pressure level 92 dB(A); Sound power level
103 dB(A). Uncertainty K =3 dB.
Wear hearing protection!
Vibration total values a (triax vector sum) and uncertainty K
h
determined according to EN 60745:
2
Surface grinding: a =7.5 m/s , K=1.5 m/s
h
2
Disk sanding: a =4.0 m/s , K=1.5 m/s
h
The vibration level given in this information sheet has been
measured in accordance with a standardised test given in
EN 60745 and may be used to compare one tool with anoth-
er. It may be used for a preliminary assessment of exposure.
The declared vibration emission level represents the main ap-
plications of the tool. However if the tool is used for different
applications, with different accessories or insertion tools or is
poorly maintained, the vibration emission may differ. This
may significantly increase the exposure level over the total
working period.
An estimation of the level of exposure to vibration should also
take into account the times when the tool is switched off or
when it is running 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 pat-
terns.
Bosch Power Tools
Declaration of Conformity
20-230 20-230
H JH
We declare under our sole responsibility that the product de-
-1 scribed under "Technical Data" is in conformity with the fol-
6600 6600
lowing standards or standardization documents: EN 60745
mm 230 230
according to the provisions of the directives 2011/65/EU,
M 14 M 14
2004/108/EC, 2006/42/EC.
Technical file (2006/42/EC) at:
mm 25 25
Robert Bosch GmbH, PT/ETM9

–
D-70745 Leinfelden-Echterdingen

– Henk Becker
Executive Vice President
Engineering
kg 5.2 5.2
kg 5.1 5.1
Robert Bosch GmbH, Power Tools Division
/II /II
D-70745 Leinfelden-Echterdingen
31.03.2014
Assembly
Mounting the Protective Devices
 Before any work on the machine itself, pull the mains
Note: After breakage of the grinding disc during operation or
damage to the holding fixtures on the protection guard/power
tool, the machine must promptly be sent to an after-sales ser-
vice agent for maintenance. For addresses, see section "Af-
ter-sales Service and Application Service".
Protection Guard for Grinding
Place the protection guard 5 on the spindle collar. Adjust the
position of the protection guard 5 to the requirements of the
2
,
operation and lock the protection guard 5 with the locking
2
.
screw 6.
 Adjust the protection guard 5 in such a manner that
Protection Guard for Cutting
 For cutting with bonded abrasives, always use the pro-
 Provide for sufficient dust extraction when cutting
The protection guard for cutting 13 is mounted in the same
manner as the protection guard for grinding 5.
Cutting Guide with Dust Extraction Protection Guard
The cutting guide with dust extraction protection guard 24 is
mounted in the same manner as the protection guard for
grinding 5.
Auxiliary Handle
 Operate your machine only with the auxiliary handle 3.
Screw the auxiliary handle 3 on the right or left of the machine
head depending on the working method.
Helmut Heinzelmann
Head of Product Certification
PT/ETM9
plug.
sparking is prevented in the direction of the operator.
tection guard for cutting 13.
stone.
English | 19
1 609 92A 0MJ | (23.4.14)