Additional Safety Instructions; Functional Description; Tool Specifications - Bosch GWS 12 U Professional Manual Original

light clothing and/or skin.
b) If the use of a guard is recommended for wire
brushing, do not allow any interference of the
wire wheel or brush with the guard. Wire wheel or
brush may expand in diameter due to work load
and centrifugal forces.

Additional safety instructions

„ Use suitable detectors to determine if utility lines
are hidden in the work area or call the local utility
company for assistance. Contact with electric lines
can lead to fire and electric shock. Damaging a gas
line can lead to explosion. Penetrating a water line
causes property damage or may cause an electric
shock.
„ If the power supply should be disconnected, e. g.
due to a power outage or pulling the mains plug,
release the On/Off switch and set it to the Off
position. This prevents uncontrolled restarting.
„ When working stone, use dust extraction. The
vacuum cleaner must be approved for the
extraction of stone dust. Using this equipment
reduces dust-related hazards.
„ Use a cutting guide when cutting stone. Without
sideward guidance, the cutting disc can jam and
cause kickback.

Functional Description

Read all safety warnings and all
instructions. Failure to follow the
warnings and instructions may result in
electric shock, fire and/or serious injury.

Tool specifications

Sanding
Order number
Rated power 127 V
consumption
220 V
Frequency
No-load speed
Capacity Sanding Disc
Ø:
Flared cup grinding whell
Wire cup brush
Spindle thread – Ø roscas
Peso
Protection Class
Robert Bosch Ltda.
All manuals and user guides at all-guides.com
Introduction
Bosch Sanders GWS 12 U and GWS 21 U have been
developed to perform a wide variety of sanding jobs
in ferrous and non-ferrous metals, wood in general,
finish concrete, car paints, stones (marble, granite
and graniteware, etc.), among others.
By adapting a wire cup brush, the sander can be used
to remove rust, old paints and brushing jobs in
general.
The use of a flared cup grinding wheel will allow a
great number of grinding jobs, such as surfacing of
plates, concrete, pavement, etc.
„
Machine Elements
1. Spindle locking button
2. Spindle
3. Spacer disc
4. Rubber sanding pad
5. Sanding discs *
6. Champing nut
7. Pin wrench
8. Switch
9. Switch locking button
10. Auxiliary
11. Screw
12. Transmission housing
* The accessories illustrated or described are not
included as standard delivery.
A
A
Hz
min
mm
mm
mm
kg
The machine can be used only for dry cutting.
GWS 12 U
0 601 323 0..
10
6
50 / 60
5 500
-1
178 (7")
125 (5")
125 (5")
M 14 x 2
3,6
E
/ II
English | 21
GWS 21 U
0 601 757 4..
17,4
10
50 / 60
5 000
178 (7")
125 (5")
125 (5")
M 14 x 2
4,2
E
/ II
F 000 622 213 | 09.2008