Operation Manual

24 | English 1 609 929 K94 • 20.12.06
Approved Grinding Tools
All grinding tools mentioned in these operating
instructions can be used.
The permissible speed [rpm] or the circumferential
speed [m/s] of the grinding tools used must at least
match the values given in the table.
Therefore, observe the permissible rotational/cir-
cumferential speed on the label of the grinding tool.
Rotating the Machine Head
f Before any work on the machine itself, pull
the mains plug.
The machine head can
be rotated with
respect to the
machine housing in
90° steps. In this man-
ner, the On/Off switch
can be brought into a
more convenient posi-
tion for special work-
ing situations, e.g., for
cutting operations
using the cutting guide
with dust extraction
protection guard
19/cut off stand or for
left-handed persons.
Completely unscrew the four screws. Rotate the
machine head carefully, without removing it from
the housing, to the new position. Screw in and
tighten the four screws again.
Operation
Starting Operation
f Observe correct mains voltage! The voltage
of the power source must agree with the
voltage specified on the nameplate of the
machine. Power tools marked with 230 V can
also be operated with 220 V.
When operating the machine with power from mobile
generators that do not have sufficient reserve capacity
or are not equipped with suitable voltage control with
starting current amplification, loss of performance or
untypical behavior can occur upon switching on.
Please observe the suitability of the power generator
being used.
Switching On and Off
To start the power tool, push the On/Off switch 3 for-
wards.
To lock the On/Off switch 3, press the On/Off switch
3 down at the front until it latches.
To switch off the power tool, release the On/Off
switch 3 or, if it is locked, briefly push down the back
of the On/Off switch 3 and then release it.
f 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.
Reduced starting current (GWS 1400)
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 1400)
Constant electronic control holds the speed constant
at no-load and under load, and ensures uniform work-
ing performance.
Operating Instructions
f Exercise caution when cutting slots in struc-
tural walls; see Section “
Information on
Structures
”.
f Clamp the workpiece if it does not remain
stationary due to its own weight.
f Do not strain the machine so heavily that it
comes to a standstill.
f Grinding and cutting discs become very hot
while working; do not touch until they have
cooled.
max.
[mm] [mm]
D b d [rpm] [m/s]
115
125
6
6
22.2
22.2
11000
11000
80
80
115
125
––
11000
11000
80
80
75 30 M 14 11000 45
b
d
D
D
D
b
d
OBJ_BUCH-310-001.book Page 24 Wednesday, December 20, 2006 9:31 AM