Starting Operation - Bosch GST Professional 135 CE Originalbetriebsanleitung

OBJ_BUCH-796-004.book Page 25 Tuesday, June 1, 2010 11:23 AM
Precision Control
Precision Control improves the lateral stability
of the inserted saw blade. The lateral guidance
from the Precision-Control guide cheeks 11 en-
able precise cuts.
To switch on Precision Control, push button 10.
To switch off Precision Control, press the SDS
lever 17 sideward to the stop and eject the saw
blade 13. 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 26).
Sawdust Blower Device
With the air jet of the sawdust blower device 8,
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 8 to posi-
tion "I".
Switching off the sawdust blower device: For
cuts in metal and when a dust extraction system
is connected, push the switch 8 to position "0".

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 power tool, 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.
Bosch Power Tools
Switching On and Off (GST 135 BCE)
To start the machine, press the On/Off switch 3
and keep it pressed.
To lock the pressed On/Off switch 3, push the
lock-on button 2 toward 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 4, 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.
After longer periods of work at low stroke rate,
the machine can heat up considerably. Remove
the saw blade from the machine and allow the
machine to cool down by running it for approx.
3 minutes at maximum stroke rate.
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