Bosch Professional GBG 60-20 Original Instructions Manual page 13

(5) Grinding spindle
(6) Protective guard
(7) Mounting holes
(8) On/off switch
A)
(9) Open-ended spanner
(10) Holder for the spark arrestor
(11) Spark arrestor
(12) Workpiece support
A) Accessories shown or described are not included with the
product as standard. You can find the complete selection of
accessories in our accessories range.
Technical Data
Double-wheeled bench
grinder
Article number
Rated power input P
1
Power output P
2
– 50 Hz
– 60 Hz
A)
Operating mode
No-load speed
– 50 Hz
– 60 Hz
Grinding spindle thread
Grinding discs
– Diameter
– Width
– Locating bore
– Grit
Mounting flange
– Locating bore
– min. recess
Weight according to EPTA-Pro-
cedure 01:2014
Protection class
A) The operating mode S2 (60 mins) indicates short-term opera-
tion with a maximum operating time of 60 minutes. After this
time put down the power tool and let it cool down.
The specifications apply to a rated voltage [U] of 230 V. These spe-
cifications may vary at different voltages and in country-specific mod-
els.
Noise Information
Noise emission values determined according to
EN 62841-3-4.
Typically, the A-weighted noise level of the power tool is:
Sound pressure level 93 dB(A); sound power level
99 dB(A). Uncertainty K=3 dB.
Wear hearing protection
Bosch Power Tools
The noise emission value given in these instructions has
been measured in accordance with a standardised measur-
ing procedure and may be used to compare power tools. It
may also be used for a preliminary estimation of noise emis-
sions.
The noise emission value given represents the main applica-
tions of the power tool. However, if the power tool is used
for other applications, with different application tools or is
poorly maintained, the noise emission value may differ. This
may significantly increase noise emissions over the total
working period.
To estimate noise emissions accurately, the times when the
tool is switched off, or when it is running but not actually be-
ing used, should also be taken into account. This may signi-
ficantly reduce noise emissions over the total working
GBG 60-20 period.
Assembly
3 601 B7A 4..
W 600
Pull the plug out of the socket before carrying out any
u
work on the power tool.
– Use suitable screws to fix the power tool to the work-
W 420
bench/worktop with the four holes (7) provided for this
W 430
purpose.
S2 (60 mins)
Fitting the spark arrestor/workpiece support
(see figures A−D)
-1
min 3000
– Mount the spark arrestor holder (10) with the two
-1
min 3600
screws.
M12
– Screw the spark arrestor (11) to the spark arrestor
holder (10).
mm 200
– Mount the workpiece support (12) as shown in the figure.
mm 25
Regularly check the distance between the workpiece
u
support (12) or spark arrestor holder (11) and the
mm 32
grinding wheel, and readjust as required. The distance
24/60
from the grinding wheel must not exceed 2 mm. If the
distance is too great, you are not sufficiently protected
mm 15
against sparking. The workpiece can be drawn in by the
rotational motion of the grinding wheel and can cause in-
mm 1.5
juries.
kg 16.5
Use the power tool only with the spark arrestor (11)
u
fitted and swivel the spark arrestor down as far as
/ I
possible. Escaping sparks can injure your eyes or set fire
to surrounding objects.
Use the power tool only with the workpiece support.
u
Do not mix up the right and left workpiece supports
(12). If you do, the distance between the workpiece sup-
port (12) and the grinding wheel will be too great. If the
distance is too great, you are not sufficiently protected
against sparking. The workpiece can be drawn in by the
rotational motion of the grinding wheel and can cause in-
juries.
Changing the grinding wheel
The rated speed of the accessory must be at least
u
equal to the maximum speed marked on the power
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1 609 92A 5X0 | (04.08.2020)