Technical Data - Bosch GBG 60-20 Professional Originalbetriebsanleitung

OBJ_BUCH-3096-002.book Page 13 Friday, June 2, 2017 5:02 PM
Intended Use
The machine is intended for sharpening tools as well as for
grinding and deburring metal.
The machine may only be used for short-time operation
(60 min. max).
Product Features
The numbering of the product features refers to the illustra-
tion of the machine on the graphics page.
1 Cover
2 Clamping nut
3 Clamping flange
4 Mounting flange
5 Grinder spindle
6 Blade guard
7 Mounting holes
8 On/Off switch
9 Open-end spanner*
10 Holder for the spark guard
11 Spark guard
12 Workpiece support
*Accessories shown or described are not part of the standard de-
livery scope of the product. A complete overview of accessories
can be found in our accessories program.

Technical Data

Double-wheeled bench grinder
Article number
Rated power input P
1
Output power P
2
– 50 Hz
– 60 Hz
Operating Mode *
No-load speed
– 50 Hz
– 60 Hz
Thread of grinder spindle
Grinding wheels
– Diameter
– Width
– Mounting bore
– Grain size
Mounting flange
– Mounting bore
– min. recess
Weight according to EPTA-
Procedure 01:2014
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.
* The operating mode S2 (60 min.) designates short-time operation with
a maximum operating duration of 60 minutes. After this period, switch
off the machine and allow it to cool down.
Bosch Power Tools
Noise Information
Sound emission values determined according to
EN 61029-2-4.
Typically the A-weighted sound pressure level of the product
is less than 70 dB(A). Uncertainty K =3 dB.
The noise level when working can exceed 80 dB(A).
Wear hearing protection!
The noise emission value given in these instructions has been
measured in accordance with a standardised measuring pro-
cedure and may be used to compare power tools. It may also
be used for a preliminary estimation of noise emissions.
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 accessories or is poorly
maintained, the noise emission value may differ. This may sig-
nificantly increase noise emissions over the total working pe-
riod.
To estimate noise emissions accurately, the times when the
tool is switched off, or when it is running but not actually being
used, should also be taken into account. This may significant-
ly reduce noise emissions over the total working period.
Assembly
 Before any work on the machine itself, pull the mains
plug.
– Use suitable screws to fix the power tool to the workbench
/ worktop at the 4 holes 7 provided.
GBG 60-20
Mounting the Spark Guard/Workpiece Support
3 601 B7A 4..
(see figures A–D)
W 600
 Use the power tool only with the spark guard 11 and
swivel the spark guard down as far as possible. Escap-
W 420
ing sparks can injure your eyes or set fire to surrounding
W 430
objects.
S2 (60 mins)
 Use the power tool only with the workpiece support. Do
not interchange the right-hand and left-hand work-
-1
min 3000
piece supports 12. Otherwise the clearance between
-1
min 3600
workpiece support 12 and grinding wheel will be too large.
M 12
When the clearance is larger, you are not sufficiently pro-
tected against sparking. The workpiece can be drawn in by
the rotational motion of the grinding wheel and lead to in-
mm 200
juries.
mm 25
mm 32
– Mount the holder for the spark guard 10 with the two
24/60
screws.
– Screw the spark guard 11 to the holder of the spark guard
mm 15
10.
– Mount the workpiece support 12 as shown in the figure.
mm 1.5
 Regularly check the clearance between the workpiece
support 12 as well as the holder of the spark guard 10
kg 16.5
to the grinding wheel, and readjust as required. The
/I
clearance to the grinding wheel may not exceed 2 mm.
When the clearance is larger, you are not sufficiently pro-
tected against sparking. The workpiece can be drawn in by
the rotational motion of the grinding wheel and lead to in-
juries.
English | 13
1 609 92A 3NU | (2.6.17)