Bosch GWS 14-125 Inox Professional - Manual (Page 21)

22 | English
1 609 92A 069 | (20.2.13) Bosch Power Tools
To save energy, only switch the power tool on when using it.
 Check grinding tools before using. The grinding tool
must be mounted properly and be able to move freely.
Carry out a test run for at least one minute with no load.
Do not use damaged, out-of-centre or vibrating grinding
tools. Damaged grinding tools can burst and cause injuries.
Kickback stop
In case of a sudden drop in speed, e.g.,
caused by a jammed disc while cutting, the
power supply to the motor is electronically
interrupted.
To restart the operation, switch the On/
Off switch 4 to the Off position and start the
machine again.
Restarting Protection
The restarting protection feature prevents uncontrolled re-
starting of the machine after an interruption in the power sup-
ply.
To restart the operation, switch the On/Off switch 4 to the
Off position and start the machine again.
Reduced starting current
The electronic reduced starting current limits the power con-
sumption when switching the tool on and enables operation
from a 13 ampere fuse.
Constant Electronic Control
Constant electronic control holds the speed constant at no-
load and under load, and ensures uniform working perfor-
mance.
Speed preselection
The required speed can be preselected with the thumbwheel 3 (also while running).
The data in the following table are recommended values.
Working Advice
 Exercise caution when cutting slots in structural walls;
see Section “Information on Structures”.
 Clamp the workpiece if it does not remain stationary
due to its own weight.
 Do not strain the machine so heavily that it comes to a
standstill.
 After heavily straining the power tool, continue to run
it at no-load for several minutes to cool down the acces-
sory.
 Do not touch grinding and cutting discs before they
have cooled down. The discs can become very hot while
working.
Rough Grinding
 Never use a cutting disc for roughing.
The best roughing results are achieved when setting the ma-
chine at an angle of 30° to 40°. Move the machine back and
forth with moderate pressure. In this manner, the workpiece
will not become too hot, does not discolour and no grooves
are formed.
Flap Disc
With the flap disc (accessory), curved surfaces and profiles
can be worked.
Flap discs have a considerably higher service life, lower noise
levels and lower sanding temperatures than conventional
sanding sheets.
Cutting Metal
 For cutting with bonded abrasives, always use the pro-
tection guard for cutting 13.
When cutting, work with moderate feed, adapted to the mate-
rial being cut. Do not exert pressure onto the cutting disc, tilt
or oscillate the machine.
Do not reduce the speed of running down cutting discs by ap-
plying sideward pressure.
The machine must al-
ways work in an up-
grinding motion. Other-
wise, the danger exists
of it being pushed un-
controlled out of the
cut.
When cutting profiles
and square bar, it is best
to start at the smallest
cross section.
Material Application Accessory Thumbwheel Position
Metal Removing paint Sanding disc 1 – 3
Wood, metal Brushing, rust removal Cup brush, sanding disc 3
Metal, masonry Grinding Grinding disc 4 – 6
Metal Rough grinding Grinding disc 6
Masonry, stone Cutting Cutting disc and cutting guide
(Cutting masonry/stone is permitted only with
use of the cutting guide) 6
OBJ_BUCH-611-005.book Page 22 Wednesday, February 20, 2013 9:29 AM