Switching On/Off; Practical Advice - Bosch GKS 12V-26 Professional Notice Originale

20 | English
Slide the charged battery (1) into the foot of the power tool
from the front. Press the battery fully into the foot until the
red stripe is no longer visible and the battery is securely
locked.

Switching on/off

To start the power tool, first press the lock-off switch (3),
then press and hold the on/off switch (4).
To switch off the power tool, release the on/off switch (4).
Note: For safety reasons, the on/off switch (4) cannot be
locked; it must remain pressed during the entire operation.
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.
Temperature monitoring/overload protection indicator
The red LED indicator (16) helps you to protect the battery
against overheating and the motor against overload.
If the LED indicator (16) is lit up permanently in red, the
temperature of the battery is too high and the power tool
switches off automatically.
– Switch the power tool off.
– Allow the battery to cool down before you carry on work-
ing.
If the LED indicator (16) is flashing red, then the power tool
is blocked and will switch off automatically.
Pull the power tool out of the workpiece.
The power tool will continue to work as soon as the blockage
is rectified.
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 (4) is lightly
or fully pressed, meaning that the work area is illuminated in
poor lighting conditions.

Practical advice

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.
Sawing wood
Choosing the right saw blade depends on the wood type,
wood quality and whether cuts with or against the grain are
required.
1 609 92A 4LK | (22.10.2018)
Making cuts in spruce with the grain produces long, spiral-
shaped chips.
Beech and oak dust is especially detrimental to health.
Therefore, work only with dust extraction.
Sawing with a parallel guide (see figure D)
The parallel guide (32) allows you to make precise cuts
along the edge of a workpiece and cut strips with the same
dimensions.
Set the desired cutting width at the outer edge of the base
plate using the scale on the guides of the parallel guide/guide
rail adapter.
Sawing with an auxiliary guide (see figure F)
For working on large workpieces or for cutting straight
edges, you can securely fasten a board or rail to the work-
piece as an auxiliary guide. The circular saw can be guided
along the path of this auxiliary guide with the base plate.
Sawing with a guide rail (see figure E)
You can use the guide rail (34) to produce straight cuts.
Note: Only use the guide rail (34) for right-angled cuts. At-
tempting mitre/bevel cuts could damage the guide rail (34) .
The adhesive layer prevents the guide rail from slipping and
preserves the surface of the workpiece. The guide rail's coat-
ing allows the power tool to glide more easily.
Fasten the guide rail (34) to the workpiece using suitable
clamping devices, e.g. screw clamps. Put the power tool
with mounted guide rail adapter on the guide rail.
Note: Mount the parallel guide/guide rail adapter (32) on
the power tool with the Bosch logo facing down.
The guide rail (34) must not protrude over the edge of
the workpiece being sawn into.
Switch on the power tool and push it gently in the cutting dir-
ection, guiding it evenly.
Working with parallel guide/guide rail adapter and
extraction hose
First, mount the dust extraction adapter (29) with extraction
hose (30) and then the parallel guide/guide adapter (32).
Note: Use only the intended screws to fix the parallel guide/
guide adapter (32) and the dust extraction adapter (29).
Recommendations for Optimal Handling of the Battery
Protect the battery against moisture and water.
Only store the battery within a temperature range of −20 to
50 °C. Do not leave the battery in your car in the summer, for
example.
Occasionally clean the ventilation slots on the battery using a
soft brush that is clean and dry.
A significantly reduced operating time after charging indic-
ates that the battery has deteriorated and must be replaced.
Follow the instructions on correct disposal.
Bosch Power Tools