Dust/Chip Extraction - Bosch GKM 18V-50 Professional Notice Originale

10 | English
possible to check the state of charge when the power tool is
not in operation.
Press the button for the battery charge indicator or
show the state of charge. This is also possible when the bat-
tery is removed.
If no LED lights up after pressing the button for the battery
charge indicator, then the battery is defective and must be
replaced.
Battery model GBA 18V...
LEDs
3× continuous green light
2× continuous green light
1× continuous green light
1× flashing green light
Battery model ProCORE18V...
LEDs
5× continuous green light
4× continuous green light
3× continuous green light
2× continuous green light
1× continuous green light
1× flashing green light
Inserting/changing the circular saw blade
Remove the battery before carrying out any work on
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the power tool.
Wear protective gloves when fitting the saw blade.
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Danger of injury when touching the saw blade.
Use only saw blades with a diameter of min. 130 mm
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and max. 136 mm.
Do not use abrasive wheels as the application tool un-
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der any circumstances.
Only use saw blades that match the specifications
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given in this operating manual and that are tested and
marked in accordance with EN 847-1
Selecting the saw blade
You will find an overview of recommended saw blades at the
end of these operating instructions.
Removing 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.
– Press and hold the spindle lock button (1).
Do not press the spindle lock button (1) while the saw
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spindle is moving. The power tool may become damaged
if this happens.
1 609 92A 74W | (10.03.2022)
– Use the hex key (5) to undo the clamping bolt (16) in ro-
tational direction ➊.
to
– Swing the retracting blade guard (21) back and hold on
to it firmly.
– Remove the clamping flange (17) and the saw blade (18)
from the saw spindle (20).
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 (18) and all the clamping elements
to be fitted.
– Swing the retracting blade guard (21) back and hold on
Capacity
to it firmly.
60−100 %
– Place the saw blade (18) on the mounting flange (19).
30−60 %
The cutting direction of the teeth (direction of the arrow
on the saw blade) must match the rotational direction of
5−30 %
the arrow on the retracting blade guard (21).
0−5 %
– Attach the clamping flange (17) and screw in the clamp-
ing bolt (16) in rotational direction ➋. Ensure that the
mounting flange (19) and clamping flange (17) are in-
stalled in the correct position.
– Press and hold the spindle lock button (1).
– Use the hex key (5) to tighten the clamping bolt (16) in
Capacity
rotational direction ➋. The tightening torque should be
80−100 %
6–9 Nm, which corresponds to hand-tight plus 1/8 turn.
60−80 %

Dust/Chip Extraction

40−60 %
The dust from materials such as lead paint, minerals and
20−40 %
metal can be harmful to human health. Touching or breath-
5−20 %
ing in this dust can trigger allergic reactions and/or cause
0−5 %
respiratory illnesses in the user or in people in the near vicin-
ity.
Certain kinds of metal dust are hazardous, especially in com-
bination with alloys such as zinc, aluminium or chrome. Ma-
terials containing asbestos may only be machined by special-
ists.
– 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
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easily ignite.
Operation
Remove the battery from the power tool before carry-
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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.
Bosch Power Tools