Bosch GWS Professional 6-100 Manual Original página 31

OBJ_BUCH-161-003.book Page 32 Tuesday, July 29, 2008 8:28 AM
32 | English
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.
Speed preselection (GWS 6-100 E/GWS 6-115 E/ GWS 6-125 E/GWS 850 CE)
The required speed can be preselected with the thumbwheel 4 (also while running).
The data in the following table are recommended values.
Material Application
Metal Removing paint
Wood, metal Brushing, rust removal
Metal, masonry Grinding
Metal Rough grinding
Masonry, stone Cutting
Working Advice
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.
Grinding and cutting discs become very hot
while working; do not touch until they have
cooled.
Rough Grinding
Never use a cutting disc for roughing.
The best roughing results are achieved when
setting the machine 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.
1 609 929 L32 | (29.7.08)
Reduced starting current
(GWS 850 C/GWS 850 CE)
The electronic reduced starting current limits
the power consumption when switching the tool
on and enables operation from a 13 ampere
fuse.
Constant Electronic Control
(GWS 850 C/GWS 850 CE)
Constant electronic control holds the speed
constant at no-load and under load, and ensures
uniform working performance.
Accessory
Sanding disc
Cup brush, sanding disc
Grinding disc
Grinding disc
Cutting disc and cutting guide
(Cutting masonry/stone is permitted
only with use of the cutting guide)
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 tem-
peratures than conventional sanding sheets.
Cutting Metal
For cutting metal, always work with the pro-
tection guard for cutting 13.
When cutting, work with moderate feed, adapt-
ed to the material being cut. Do not exert pres-
sure onto the cutting disc, tilt or oscillate the
machine.
Do not reduce the speed of running down cut-
ting discs by applying sideward pressure.
Thumbwheel
Position
2 – 3
3
4 – 6
6
6
Bosch Power Tools