Bosch GWS 24-230 JVX Professional - Manual (Page 19)

20 | English
1 609 92A 0B2 | (1.8.13) Bosch Power Tools
The vibration emission 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
another. It may be used for a preliminary assessment of expo-
sure.
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 poorly maintained,
the vibration emission may differ. This may significantly in-
crease 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 pe-
riod.
Identify additional safety measures to protect the operator
from the effects of vibration such as: maintain the tool and the
accessories, keep hands warm, organise work patterns.
Declaration of Conformity
We declare under our sole responsibility that the product de-
scribed under “Technical Data” is in conformity with the fol-
lowing standards or standardization documents: EN 60745
according to the provisions of the directives 2011/65/EU,
2004/108/EC, 2006/42/EC.
Technical file (2006/42/EC) at:
Robert Bosch GmbH, PT/ETM9,
D-70745 Leinfelden-Echterdingen
Robert Bosch GmbH, Power Tools Division
D-70745 Leinfelden-Echterdingen
20.06.2013
Assembly
Mounting the Protective Devices
 Before any work on the machine itself, pull the mains
plug.
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 “After-
sales Service and Application Service”.
Protection Guard for Grinding
Release the clamping lever 8. Place the protection guard 6
with the encoding key 7 engaging into the groove on the spin-
dle collar until the shoulder of the protection guard is seated
against the flange of the power tool, and turn the protection
guard 6 to the requested position. Lock the clamping lever 8.
 Adjust the protection guard 6 in such a manner that
sparking is prevented in the direction of the operator.
The tightening tension of the clamp from the protection guard
6 can be changed by loosening or tightening the adjustment
screw 9. Ensure that the protection guard 6 is tightly seated
and check regularly.
Note: The encoding keys on the protection guard 6 ensure
that only a protection guard that fits the machine type can be
mounted.
Protection Guard for Cutting
 For cutting with bonded abrasives, always use the pro-
tection guard for cutting 15.
 Provide for sufficient dust extraction when cutting
stone.
The protection guard for cutting 15 is mounted in the same
manner as the protection guard for grinding 6.
Cutting Guide with Dust Extraction Protection Guard
The cutting guide with dust extraction protection guard 22 is
mounted in the same manner as the protection guard for
grinding 6.
Auxiliary Handle
 Operate your machine only with the auxiliary handle 4.
Screw the auxiliary handle 4 on the right or left of the machine
head depending on the working method.
Vibration Damper
The integrated vibration damper reduces occurring vibra-
tions.
 Do not continue to use the power tool when the damp-
ing element is damaged.
Hand Guard
 For operations with the rubber sanding plate 18 or with
the cup brush/wheel brush/flap disc, always mount the
hand guard 17.
The hand guard 17 is fastened with the auxiliary handle 4.
Mounting the Grinding Tools
 Before any work on the machine itself, pull the mains
plug.
 Do not touch grinding and cutting discs before they
have cooled down. The discs can become very hot while
working.
Note: It is recommended to use the quick-clamping nut 13.
When using clamping nut 12, an increased expenditure of
force must be taken into account when loosening the clamp-
ing nut.
Clean the grinder spindle 5 and all parts to be mounted.
For clamping and loosening the grinding tools, lock the grind-
er spindle with the spindle lock button 1.
 Actuate the spindle lock button only when the grinder
spindle is at a standstill. Otherwise, the machine may be-
come damaged.
Henk Becker
Executive Vice President
Engineering Helmut Heinzelmann
Head of Product Certification
PT/ETM9
OBJ_BUCH-769-008.book Page 20 Thursday, August 1, 2013 9:59 AM