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20 | English
– Use the hex key (3) to undo the clamping bolt (25) in ro-
tational direction ➊.
– Swing the retracting blade guard (13) back and hold on
to it firmly.
– Remove the clamping flange (24) and the saw blade (23)
from the saw spindle (21).
Fitting the saw blade (see figure A)
To change tools, we recommend that you place the power
tool down on the front side of the motor housing.
– Clean the saw blade (23) and all the clamping elements
to be fitted.
– Swing the retracting blade guard (13) back and hold on
to it firmly.
– Place the saw blade (23) on the mounting flange (22).
The cutting direction of the teeth (direction of the arrow
on the saw blade) must match the rotational direction of
the arrow on the retracting blade guard (13).
– Attach the clamping flange (24) and screw in the clamp-
ing bolt (25) in rotational direction ➋. Ensure that the
mounting flange (22) and clamping flange (24) are in-
stalled in the correct position.
– Press and hold the spindle lock button (5).
– Use the hex key (3) to tighten the clamping bolt (25) in
rotational direction ➋. The tightening torque should be
6–9 Nm, which corresponds to hand-tight plus ¼ turn.
Dust/chip extraction
The dust from materials such as lead paint, some types of
wood, minerals and metal can be harmful to human health.
Touching or breathing in this dust can trigger allergic reac-
tions and/or cause respiratory illnesses in the user or in
people in the near vicinity.
Certain dusts, such as oak or beech dust, are classified as
carcinogenic, especially in conjunction with wood treatment
additives (chromate, wood preservative). Materials contain-
ing asbestos may only be machined by specialists.
– Use a dust extraction system that is suitable for the ma-
terial wherever possible.
– Provide good ventilation at the workplace.
– It is advisable to wear a P2 filter class breathing mask.
The regulations on the material being machined that apply in
the country of use must be observed.
Avoid dust accumulation at the workplace. Dust can
u
easily ignite.
Fitting the dust extraction adapter (see figure B)
Push the dust extraction adapter (28) onto the chip ejector
(16) until it clicks into place. Then secure the dust extraction
adapter (28) in place with the screw (27).
A dust extraction hose with a diameter of 35 mm can be con-
nected to the dust extraction adapter (28).
The dust extraction adapter must only be fitted if an
u
external dust extraction system is connected. Other-
wise the extraction duct can become clogged.
1 609 92A 4LL | (08.04.2021)
No dust bags should be connected to the dust extrac-
u
tion adapter. Otherwise the extraction system can be-
come clogged.
To ensure optimum extraction, the dust extraction adapter
(28) must be cleaned regularly.
External dust extraction
Connect the extraction hose (35) to a dust extractor (ac-
cessory). You will find an overview of connecting to various
dust extractors at the end of these operating instructions.
The power tool can be directly connected to the socket of a
Bosch all-purpose dust extractor with remote starter. This
dust extractor is started up automatically when the power
tool is switched on.
The dust extractor must be suitable for the material being
worked.
When extracting dry dust that is especially detrimental to
health or carcinogenic, use a special dust extractor.
Operation
Remove the battery from the power tool before carry-
u
ing out work on the power tool (e.g. maintenance,
changing tool, etc.). The battery should also be re-
moved for transport and storage. There is risk of injury
from unintentionally pressing the on/off switch.
Operating modes
Setting the cutting depth (see figure C)
Adapt the cutting depth to the thickness of the work-
u
piece. A space of less than the height of one full tooth
should be visible under the workpiece.
Loosen the clamping lever (29). For a smaller cutting depth,
pull the saw away from the base plate (6); for a larger cutting
depth, push the saw towards the base plate (6). Adjust the
desired cutting depth at the cutting-depth scale. Retighten
the clamping lever (29).
The clamping force of the clamping lever (29) can be read-
justed. To do so, unscrew the clamping lever (29) and
retighten it in a position offset by at least 30° in an anticlock-
wise direction.
Setting the mitre/bevel angle (GKS 18V-57 G)
We recommend that you place the power tool down on the
front side of the protective guard (17).
Loosen the wing bolts (8) and (15). Swivel the saw to the
side. Set the required mitre angle on the scale (9). Retighten
the wing bolts (8) and (15).
Note: When making mitre cuts, the cutting depth is less than
the value shown on the cutting depth scale (30).
Setting the mitre/bevel angle (GKS 18V-57)
We recommend that you place the power tool down on the
front side of the protective guard (17).
Loosen the wing bolt (8). Swivel the saw to the side. Set the
required mitre angle on the scale (9). Retighten the wing
bolt (8).
Bosch Power Tools
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