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Reciprocating saw
Stroke rate control
Rated power input
No-load stroke rate n
0
Tool holder
Stroke
Max. cutting depth
– In wood
– In steel (unalloyed)
– Pipe diameter
Weight according to
EPTA-Procedure 01:2014
Protection class
The specifications apply to a rated voltage [U] of 230 V. These spe-
cifications may vary at different voltages and in country-specific mod-
els.
Fitting
Pull the plug out of the socket before carrying out any
u
work on the power tool.
Inserting/changing the saw blade
When fitting or changing the saw blade, wear protect-
u
ive gloves. Blades are sharp and can become hot when
used for prolonged periods of time.
While replacing the saw blade, ensure that the saw
u
blade receptacle is free of material residue, e.g. wood
or metal chips. Take care that there are no sheared-off
pieces of shank in the saw blade receptacle.
Selecting the saw blade
You will find an overview of recommended saw blades at the
end of these operating instructions. Only use saw blades
with a 1/2" universal shank. The saw blade should not be
longer than required for the intended cut.
The shank thickness of the saw blade has to be 0.8–1.8 mm.
Use a narrow saw blade when sawing tight curves.
Inserting the saw blade (see figure A)
Press the SDS lever (9) forward and guide the saw blade (1)
behind the clamping plate into the saw blade receptacle (3).
Release the SDS lever (9).
Check that it is seated securely by pulling the saw
u
blade. A loose saw blade can fall out and lead to injuries.
For particular jobs, the saw blade (1) can also be flipped
180° (teeth point upwards) and refitted.
Removing the saw blade
Let the saw blade cool down before removing it. There
u
is a risk of injury when touching the hot saw blade.
Press the SDS lever (9) forward and pull out the saw
blade (1). Release the SDS lever (9).
Bosch Power Tools
Dust/Chip Extraction
GSA 120
Dust from materials such as lead-containing coatings, some
●
wood types, minerals and metal can be harmful to one's
W
1200
health. Touching or breathing-in the dust can cause allergic
−1
min
0−3000
reactions and/or lead to respiratory infections of the user or
SDS
bystanders.
Certain dust, such as oak or beech dust, is considered carci-
mm
29
nogenic, especially in connection with wood-treatment ad-
ditives (chromate, wood preservative). Materials containing
mm
220
asbestos may only be worked by specialists.
mm
20
– Provide for good ventilation of the working place.
mm
220
– It is recommended to wear a P2 filter-class respirator.
Observe the relevant regulations in your country for the ma-
kg
3.7
terials to be worked.
u
/Ⅱ
Operation
Start-up
u
u
Switching on/off
To switch on the power tool, press the on/off switch (6).
To lock the on/off switch (6), press and hold it while also
pressing the locking mechanism (5).
To switch off the power tool, release the on/off switch (6).
If the on/off switch (6) is locked, press the switch first and
then release it.
Controlling the stroke rate
You can variably adjust the stroke rate of the power tool
when it is on by pressing in the on/off switch (6) to varying
extents.
Applying light pressure to the on/off switch (6) results in a
low stroke rate. Applying increasing pressure to the switch
increases the 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
and let the power tool run at the maximum stroke rate for
around three minutes to cool down.
Avoid dust accumulation at the workplace. Dust can
easily ignite.
Products that are only sold in AUS and NZ: Use a resid-
ual current device (RCD) with a nominal residual current
of 30 mA or less.
Pay attention to the mains voltage. The voltage of the
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 3ZK | (25.09.2018)
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