Inserting/Changing The Circular Saw Blade; Dust/Chip Extraction - Bosch GKS 18 V-LI Professional Manual Original

The lithium-ion battery can be charged at any time without
reducing its service life. Interrupting the charging process
does not damage the battery.
The lithium-ion battery is protected against deep discharge
by the "Electronic Cell Protection (ECP)". When the battery
is discharged, the power tool is switched off by means of a
protective circuit: The application tool no longer rotates.
Do not continue to press the On/Off switch after the
u
power tool has automatically switched off. The battery
can be damaged.
Follow the instructions on correct disposal.
Removing the battery
The battery (3) is equipped with two locking levels to pre-
vent the battery from falling out if the battery release button
(24) is pressed unintentionally. As long as the battery is in-
serted in the power tool, it is held in position by means of a
spring.
To remove the battery (3), press the release button (24)
and pull the battery to the rear and out of the power tool. Do
not use force to do this.
Battery charge indicator
The green LEDs on the battery charge indicator indicate the
state of charge of the battery. For safety reasons, it is only
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

Inserting/changing the circular saw blade

Remove the battery before carrying out any work on
u
the power tool.
Wear protective gloves when fitting the saw blade.
u
Danger of injury when touching the saw blade.
The permitted speed of the application tool must be at
u
least equal to the maximum speed marked on the
power tool. If accessories run faster than their rated
speed, they may break and fly off.
Do not use abrasive wheels as the application tool un- u
der any circumstances.
Bosch Power Tools
Only use saw blades that match the specifications
u
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 (14).
Do not press the spindle lock button (14) while the
u
saw spindle is moving. The power tool may become
damaged if this happens.
– Use the hex key (16) to undo the clamping bolt (22) in ro-
tational direction ➊.
– Swing the retracting blade guard (7) back and hold on to
it firmly.
– Remove the clamping flange (21) and the saw blade (20)
from the saw spindle (18).
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 (20) and all the clamping elements
to be fitted.
to
– Swing the retracting blade guard (7) back and hold on to
it firmly.
– Place the saw blade (20) on the mounting flange (19).
The cutting direction of the teeth (direction of the arrow
on the saw blade) must match the rotational direction of
the arrow on the protective guard (7).
– Attach the clamping flange (21) and screw in the clamp-
ing bolt (22) in rotational direction ➋. Ensure that the
mounting flange (19) and clamping flange (21) are in-
stalled in the correct position.
Capacity
– Press and hold the spindle lock button (14).
– Use the hex key (16) to tighten the clamping bolt (22) in
60−100 %
rotational direction ➋. The tightening torque should be
30−60 %
6–9 Nm, which corresponds to hand-tight plus ¼ turn or
5−30 %
three graduation marks of the marking (23) on the pro-
0−5 %
tective guard (4).

Dust/chip extraction

The dust from materials such as lead paint, certain 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.
– To achieve a high level of dust extraction, use the dust ex-
tractor GAS 25/GAS 50/GAS 50 M for wood or GAS 50
MS for wood and/or mineral dust together with this power
tool.
English | 19
1 609 92A 7T1 | (25.05.2022)