Bosch GST 135 CE Professional Original Instructions Manual page 24

OBJ_BUCH-796-001.book Page 24 Friday, June 6, 2008 12:45 PM
24 | English
Sawing with the base plate 9 offset is possible
only with a mitre angle of 0°. In addition, the
parallel guide with circle cutter 27 (accessory)
as well as the splinter guard 21 may not be used.
Changing the Pre-tension of the Base Plate
With the thumbwheel 23, the pre-tension of the
base plate clamping lever 24 can be changed.
When the base plate 9 is not seated tightly after
closing the lever, open the clamping lever and
turn the thumbwheel for pre-tension of the base
plate in the "+" direction.
When the base plate cannot be adjusted or only
with difficulty after opening the clamping lever,
turn the thumbwheel in the " – " direction.
Precision Control
Precision Control improves the lateral stability
of the inserted saw blade. The lateral guidance
from the Precision-Control guide cheeks 13 en-
able precise cuts.
To switch on Precision Control, push button 12.
To switch off Precision Control, press the SDS
lever 19 sideward to the stop and eject the saw
blade 15. Reinsert the saw blade afterwards, if
required.
Wear protective gloves when changing the
saw blade. The ejected saw blade can be hot.
Precision Control can be used for all applica-
tions, even for mitre cuts. It is especially recom-
mended for cuts in thick wood: The lateral guid-
ance ensures that the cutting angle is
maintained and reduces run-off of the saw blade
(also see "Sawing Thick Wood", page 25).
Sawdust Blower Device
With the air jet of the sawdust blower device 10,
the cutting line can be kept free of dust and
chips.
Switching on the sawdust blower device: For
cuts in materials with high removal rate, such as
in wood, plastic, etc., push the switch 10 to
position "I".
Switching off the sawdust blower device: For
cuts in metal and when a dust extraction system
is connected, push the switch 10 to position "0".
1 609 929 N54 | (6.6.08)
Starting Operation
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.
Switching On and Off (GST 135 CE)
To start the machine, push the On/Off switch 3
forwards.
To switch off the machine, push the On/Off
switch 3 toward the rear so that the "0" is indi-
cated on the switch.
Switching On and Off (GST 135 BCE)
To start the machine, press the On/Off switch 3.
To lock the On/Off switch 3, keep it depressed
and push the lock-on button 2 to the right or
left.
To switch off the machine, release the On/Off
switch 3. When the On/Off switch 3 is locked,
press it first and then release it.
Controling the Stroke Rate (GST 135 BCE)
Increasing or reducing the pressure on the
On/Off switch 3 enables stepless stroke-rate
control of the switched-on machine.
Light pressure on the On/Off switch 3 results in
a low stroke rate. Increasing the pressure also
increases the stroke rate.
When the On/Off switch 3 is locked, it is not
possible to reduce the stroke rate.
Presetting the Stroke Rate
With the thumbwheel for stroke rate preselec-
tion 5, the stroke rate can be preset and
changed during operation.
1 – 2: Low stroke rate
3 – 4: Medium stroke rate
5 – 6: High stroke rate
The required stroke rate is dependent on the
material and the working conditions and can be
determined by a practical trial.
Reducing the stroke rate is recommended when
the saw blade engages in the material as well as
when sawing plastic and aluminium.
Bosch Power Tools