Bosch GST 750 Professional Notice Originale page 8

8 | English
Operation
Products that are only sold in AUS and NZ: Use a resid-
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ual current device (RCD) with a nominal residual current
of 30 mA or less.
Operating modes
Pull the plug out of the socket before carrying out any
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work on the power tool.
Pendulum action settings
The pendulum action can be adjusted using four different
settings, allowing the cutting speed, cutting capacity and the
cut itself to be optimally adapted to the material that you
want to cut.
You can also adjust the pendulum action during operation
using the adjusting lever (8).
Level 0 No pendulum action
Level I Low pendulum action
Level II Moderate pendulum action
Level III High pendulum action
The optimum pendulum level for each application can be de-
termined by a practical test. Note the following recommend-
ations:
– Select a lower pendulum level or switch off the pendulum
action completely if you wish to produce a finer or cleaner
cutting edge.
– Switch off the pendulum action when machining thin ma-
terials (e.g. sheets).
– Work on hard materials (e.g. steel) with low pendulum ac-
tion.
– You can work on soft materials and saw wood using max-
imum pendulum action.
Adjusting the mitre/bevel angle (see figure E)
The base plate (7) can be swivelled to the right or left to
make mitre cuts up to 45°.
The anti-splinter guard (16) cannot be used while mitre cuts
are being made.
– Remove the anti-splinter guard (16).
– Loosen the screw (17) and push the base plate (7)
slightly towards the saw blade (10).
– The base plate has lock-in points at 0° and 45° on the left
and right so that precise mitre/bevel angles can be set.
Swivel the base plate (7) to the desired position accord-
ing to the scale (18). Other mitre/bevel angles can be ad-
justed using a protractor.
– Then slide the base plate (7) all the way towards the
mains cable.
– Retighten the screw (17).
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.
1 609 92A 89V | (25.07.2023)
Switching on/off
Make sure that you are able to press the On/Off switch
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without releasing the handle.
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.
Preselect the stroke rate
You can preselect the stroke rate and change it during opera-
tion using the stroke rate preselection thumbwheel (1).
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
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.
Jigsaws are primarily designed for curved cuts. The range of
products from Bosch also includes accessories which enable
straight cuts or circular cuts (depending on the jigsaw
model, e.g. parallel guide, guide rail or circle cutter).
Hand-held jigsaws generally tend to go off at an angle, i.e.
under certain circumstances the angle and cutting accuracy
can no longer be ensured. Decisive influencing factors on the
accuracy are the saw blade thickness, cutting length and the
material thickness and strength of the workpiece.
Therefore, always check using test cuts whether the cutting
result of the selected system meets the requirements of your
application.
Plunge cutting (see figure F)
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 (10)
touching the workpiece, and switch it on. On power tools
with stroke rate control, select the maximum stroke rate.
Bosch Power Tools