Rough Grinding; Initial Operation - Bosch GWS 6-100 PROFESSIONAL Operating Instructions Manual

2 609 140 063 - Buch Seite 5 Mittwoch, 11. Februar 2004 10:03 10
4
Approved Grinding Tools
All grinding tools mentioned in this operating
manual instruction can be used.
The permissible speed [rpm] or the circumferen-
tial speed [m/s] of the grinding tools used must
correspond minimally to the values given in the
table.
For this reason, always observe the permissible
rotational/circumferential speed on the label
of the grinding tool.
max.
[mm]
D b
100 6
d
115 6
D
125 6
b
100 –
D
115 –
125 –
d
70 30
b
75 30
D

Initial Operation

Always use the correct voltage: The voltage of
the power source must agree with the values on
the nameplate of the machine.
To start the machine, press the On/Off switch 2
forward.
To lock-on, press the On/Off switch 2 down at
the front until it engages.
To switch off the machine, release the On/Off
switch 2 or press the rear tip of it down.
10 • 2 609 140 063 • TMS • 04.02.04
A properly tightened
and undamaged
quick clamping nut
can be loosened by
turning the knurled
ring counter-clock-
wise.
Never loosen a
tightened quick
clamping nut with
pliers. Instead, use
a two-hole spanner.
Insert the two-hole
spanner as shown in
the illustration.
[mm]
d [rpm] [m/s]
16.0 11 000 80
22.2 11 000 80
22.2 11 000 80
– 11 000 80
– 11 000 80
– 11 000 80
M 10 11 000 45
M 14 11 000 45
English - 5
Test run!
Check the grinding tool before use. The
grinding tool must be flawlessly mounted
and be able to rotate freely. Perform a test
run of at least 30 seconds without load. Do
not use damaged or vibrating grinding
tools.
Constant electronics (GWS 8-100 C,
GWS 8-100 CE, GWS 8-115 C,
GWS 8-125 C, GWS 8-125 CE)
The electronically-controlled speed remains con-
stant under no load and load conditions, thus en-
suring a uniform output.
Speed Selection (GWS 6-100 E,
GWS 6-115 E, GWS 8-100 CE,
GWS 8-115 CE, GWS 8-125 CE)
Preselect the required speed using the thumb
wheel 1 according to the table following the sec-
tion "Product Specification" (reference values).
Operating Instructions
Clamp down the workpiece if it does not
stay in place owing to its own weight.
Do not load the machine so heavily that it
comes to a standstill.
Grinding and cutting discs become very
hot during use; do not touch them until
they have cooled down.

Rough Grinding

The best roughing results can be
achieved with a 30° to 40° ap-
proach angle. Move the machine
back and forth with moderate pres-
sure. In this manner, the work piece
will not overly heat up nor discolor
and no ridges will be formed.
Never use a cutting disc for roughing.
Flap disc
The flap disc (accessory) can be used for working
on curved surfaces and profiles (contour sand-
ing).
Flap discs have a considerably higher service life
than sanding sheets, a lower noise level and
lower sanding temperatures.