Bosch GGS 8 CE Professional - Manual (Page 15)

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Bosch Power Tools 3 609 929 C06 | (17.5.11)
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 signif-
icantly 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.
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 2004/108/EC,
2006/42/EC.
Technical file at:
Robert Bosch GmbH, Postfach 10 01 56,
D-70745 Leinfelden-Echterdingen
Robert Bosch GmbH, Power Tools Division
D-70745 Leinfelden-Echterdingen
18.04.2011
Assembly
f Before any work on the machine itself, pull the mains plug.
Mounting the Grinding Tools (see figure A)
f Only use properly fitting and undamaged open-end
spanners (see “Technical Data”).
– Clean the grinder spindle 3 and all parts to be mounted.
– Hold the grinder spindle 3 with open-end spanner 8 by the
spanner flats .
Loosen the clamping nut 2 with open-end spanner 9 by ap-
plying it to the spanner flats and turning in anticlockwise
direction.
– Insert the clamping shaft of the grinding tool to the stop in-
to the collet chuck 1.
– Hold the grinder spindle 3 firmly with open-end spanner 8
and clamp the tool bit with open-end spanner 9 by the
spanner flats, turning in clockwise direction.
The grinding tools must run completely concentrical. Do not
continue to use out-of-round grinding accessories, instead,
replace before continuing to work.
f
Do not tighten the collet chuck of the clamping nut as
long as no grinding accessory is mounted. Otherwise,
the collet chuck can become damaged.
Dust/Chip Extraction
f 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 reactions 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 connection with wood-treat-
ment additives (chromate, 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.
f Prevent dust accumulation at the workplace. Dusts can
easily ignite.
Operation
Starting Operation
f Observe correct mains voltage! The voltage of the pow-
er 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 power tool, push the On/Off switch 5 forwards.
Vibration total values a
h
(triax vector sum) and uncertainty K determined according to
EN 60745:
Surface grinding (with wheel diameter of 25 mm):
a
h
K
m/s 2
m/s 2
3
1.5
6
1.5
≤2.5
1.5
Vibration total values a
h
(triax vector sum) and uncertainty K determined according to
EN 60745:
Surface grinding (with wheel diameter of 50 mm (max.):
a
h
K
m/s 2
m/s 2
8
1.5
14
1.5
≤2.5
1.5
GGS ...
Professional
28 C
28 CE
28 LC
28 LCE
8 CE
Dr. Egbert Schneider
Senior Vice President
Engineering
Dr. Eckerhard Strötgen
Head of Product
Certification
OBJ_BUCH-1269-004.book Page 15 Tuesday, May 17, 2011 4:15 PM