Bosch GST 80 PB Professional Notice Originale page 9

Sawdust blower device
The cutting line can be kept clear of chips using the airflow
from the sawdust blower device.
Turn the switch (5) to the appropriate level for the material
at hand.
Sawdust blowing level I:
No blowing effect for working with metal and using
coolant and lubricating fluid.
Sawdust blowing level II:
Medium blowing effect for working with materials
with a low material removal rate, such as hard-
wood.
Sawdust blowing level III:
Strong blowing effect for working with materials
with a high material removal rate, such as soft-
wood, plastic, etc.
Starting Operation
Pay attention to the mains voltage. The voltage of the
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power source must match the voltage specified on the
rating plate of the power tool. Power tools marked
with 230 V can also be operated with 220 V.
Switching on/off
To switch on the power tool, press the on/off switch (2).
To lock the on/off switch (2), press and hold it while also
pressing the locking mechanism (3).
To switch off the power tool, release the on/off switch (2).
If the on/off switch (2) is locked, press the switch first and
then release it.
Controlling/preselecting the stroke rate (GST 80 PBE)
You can variably adjust the stroke rate of the power tool
when it is on by pressing in the on/off switch (2) to varying
extents.
Applying light pressure to the on/off switch (2) results in a
low stroke rate. Applying increasing pressure to the switch
increases the stroke rate.
It is not possible to reduce the stroke rate while the on/off
switch (2) is locked.
You can also preselect the stroke rate and change it during
operation using the stroke rate preselection thumbwheel
(1).
A–B: Low stroke rate
C–D: Medium stroke rate
E: High stroke rate
The required stroke rate is dependent on the material and
the work conditions and can be determined using practical
tests.
It is recommended that you reduce the stroke rate when
placing the saw blade on the workpiece and when sawing
plastic and aluminium.
During prolonged periods of use at a low stroke rate, the
power tool may heat up significantly. Remove the saw blade
Bosch Power Tools
and let the power tool run at the maximum stroke rate for
around three minutes to cool down.
Working Advice
Pull the plug out of the socket before carrying out any
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work on the power tool.
Switch the power tool off immediately if the saw blade
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becomes blocked.
When machining small or thin workpieces, always use
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a stable base or saw table (accessory).
Before sawing into wood, chipboard, building materials,
etc., check for and remove any foreign objects such as nails,
screws, etc.
Plunge cutting (see figure E)
Plunge cuts may only be applied to soft materials,
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such as wood, gypsum board, etc.
For plunge cutting, use only short saw blades. Plunge cutting
is possible only with a mitre angle of 0°.
Place the power tool so that the front edge of the base plate
(7) rests on the workpiece, without the saw blade (9) touch-
ing the workpiece, and switch it on. On power tools with
stroke rate control, select the maximum stroke rate. Press
the power tool firmly against the workpiece and allow the
saw blade to plunge slowly into the workpiece.
As soon as the base plate (7) rests fully on the workpiece,
continue sawing along the required cutting line.
Parallel guide with circle cutter (accessory)
When working with the parallel guide with circle cutter (21)
(accessory), the workpiece must be no more than 30 mm
thick.
Parallel cuts (see figure F): Loosen the locking screw (20)
and slide the scale on the parallel guide through the guide
(19) in the base plate. Adjust the desired cutting width as a
scale value on the inside edge of the base plate. Retighten
the locking screw (20).
Circular cuts (see figure G): Drill a hole large enough to push
the saw blade through on the cutting line within the circle to
be cut. Machine the drill hole with a router or file so that the
saw blade can lie flush with the cutting line.
Position the locking screw (20) on the other side of the par-
allel guide. Slide the scale on the parallel guide through the
guide (19) into the base plate. Drill a hole in the workpiece
in the middle of the section to be cut out. Insert the centring
tip (22) through the inner opening of the parallel guide and
into the drilled hole. Adjust the radius as a scale value on the
inside edge of the base plate. Retighten the locking screw
(20).
Coolant/lubricant
As the material heats up along the cutting line when cutting
metal, you should apply coolant or lubricant.
English | 9
1 609 92A 514 | (26.03.2019)