Operating Modes; Practical Advice - Bosch Professional GKM 18V-50 Original Instructions Manual

Operating modes

Setting the cutting depth (see figure B)
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 (10). For a smaller cutting depth,
pull the saw away from the base plate (13); for a larger cut-
ting depth, push the saw towards the base plate (13). Adjust
the desired cutting depth at the cutting-depth scale.
Retighten the clamping lever (10).
The clamping force of the clamping lever (10) can be read-
justed. To do so, unscrew the clamping lever (10) and
retighten it in a position offset by at least 30° in an anticlock-
wise direction.
Note: If the ProCORE18V 12.0Ah battery is used, this may
sit on the workpiece during working. Consequently, the max-
imum cutting depth cannot be reached.
Cut marks
0°
The cut mark (12) indicates the position of the saw blade
when making a right-angled cut.
For a precise cut, place the circular saw against the work-
piece as shown in the figure. We recommend making a test
cut.
Utility hook (see figure C)
Your power tool is equipped with a utility hook (3) for
hanging it to a ladder, for example. Simply fold out the utility
hook (3) to the required position.
When the power tool is hanging by the utility hook, en-
u
sure that the saw blade is protected against uninten-
ded contact in order to prevent injury.
Fold the utility hook (3) in again when you want to begin
work with the power tool.
Chip container (see figures F–G)
Caution: Do not touch the protective guard with chip
container (2) and the metal chips with bare hands immedi-
ately after operation. These parts can be very hot and cause
skin burns.
Do not cut material which has had thinner, petrol, grease or
other chemicals applied to it. The metal chips produced by
such materials could damage the protective guard with chip
container (2) and lead to a break that could cause personal
injury.
The metal chips are collected in the chip container of the
protective guard (2). Empty the chip container at regular in-
tervals.
Bosch Power Tools
To do this, push the chip container locking mechanism (25)
upwards. Open the lid of the chip container (24) and tilt the
power tool sideways to empty the chip container. After
emptying, close the lid of the chip container (24) and lock
the chip container again.
Start-up
Before carrying out any work with the power tool, en-
u
sure that the chip container is closed and locked.
Never operate the power tool without a protective
guard/with a defective protective guard/lid on the
chip container.
Inserting the battery
Push the charged battery (9) into the power tool until the
battery is securely locked.
Switching on/off
Make sure that you are able to press the On/Off switch
u
without releasing the handle.
To start the power tool, first press the lock-off switch (6),
then press and hold the on/off switch (7).
To switch off the power tool, release the on/off switch (7).
Note: For safety reasons, the on/off switch (7) cannot be
locked; it must remain pressed during the entire operation.
0°
Run-out brake
An integrated run-out brake shortens the time the saw blade
keeps running for after the power tool has been switched
off.
Protection Against Deep Discharging
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 pro-
tective circuit: The application tool no longer rotates.
Switching on the LED worklight
The lamp (26) lights up when the on/off switch (7) is lightly
or fully pressed, meaning that the work area is illuminated in
poor lighting conditions.

Practical advice

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.
The width of cut varies depending on the saw blade used.
Protect saw blades against shock and impact.
Guide the power tool evenly, pushing it gently in the cutting
direction. Applying too much pressure to the power tool
when moving it in the cutting direction significantly reduces
the service life of the application tools and can damage the
power tool.
The sawing performance and the quality of the cut essen-
tially depend on the condition and the tooth shape of the
saw blade. This is why you should only use sharp saw blades
that are suitable for the material being machined.
English | 11
1 609 92A 74W | (10.03.2022)