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Operating Modes; Switching On/Off - Bosch Professional GKT 55 GCE Oorspronkelijke Gebruiksaanwijzing

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18 | English
– Attach the clamping flange (21) and screw in the clamp-
ing bolt (20) in rotational direction ➋. Ensure that the
mounting flange (23) and clamping flange (21) are in-
stalled in the correct position.
– Press and hold the spindle lock button (25).
– Use the hex key (5) to tighten the clamping bolt (20) in
rotational direction ➋. The tightening torque should be
6–9 Nm, which corresponds to hand-tight plus ¼ turn.
– Flip the lever (3) back. In doing so, the saw will automat-
ically spring back to its home position.
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
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easily ignite.
External dust extraction
Connect an extraction hose with a diameter of 35 mm (31)
(accessory) to the chip ejector (18). Connect the extraction
hose (31) to a dust extractor (accessory). You will find an
overview of how to connect various dust extractors at the
end of these operating instructions.
The power tool can be directly connected to the plug 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 or dust that is especially detri-
mental to health or carcinogenic, use a special dust ex-
tractor.
Operation
Pull the plug out of the socket before carrying out any
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work on the power tool.

Operating modes

Setting the cutting depth (see figures B–C)
Adapt the cutting depth to the thickness of the work-
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piece. A space of less than the height of one full tooth
should be visible under the workpiece.
1 609 92A 7XT | (03.08.2022)
Turn the cutting depth indicator (8) to the bottom position
➊ for sawing without a guide rail, or to the top position ➋ for
sawing with a guide rail.
Push the slider (27) to set the required cutting depth (ma-
terial thickness + tooth height of the saw blade) on the cut-
ting depth scale (6).
Adjusting the mitre/bevel angle
Place the power tool on a level surface, so that the base
plate (7) is fully supported.
Loosen the wing bolts (11) and (17). Swivel the saw to the
side. Set the required mitre/bevel angle on the scale (9).
Tighten the front wing bolt (11) or the rear wing bolt (17).
Then tighten the wing bolt on the opposite side. Note: Do
not exert any force on the auxiliary handle (4) or the saw it-
self. If this is not adhered to, different mitre/bevel angles
can be set unintentionally with the wing bolts (11) and (17).
This means that the base plate (7) will then no longer lay flat
on the surface of the FSN guide rail.
If you tighten both wing bolts at the same time, it may be ne-
cessary to support the saw from the bottom of the auxiliary
handle (4). When doing this, do not exert any force on the
auxiliary handle (4) or the saw itself to prevent different set-
tings from being implemented.
If the settings have nonetheless turned out to be different,
loosen both wing bolts (11) and (17) again. Then set the
mitre/bevel angle again as described previously.
The saw can be set to a mitre/bevel angle of -1° or +47°. To
do this, when swivelling, also press the button (16) for a
mitre/bevel angle of -1° or the button (12) for a mitre/bevel
angle of +47°.
Note: When making mitre cuts, the cutting depth is less than
the value shown on the cutting depth scale (6).
Cut marks (see figure D)
The 0° cut mark (32) indicates the position of the saw blade
when making a right-angled cut. The 45° cut mark (33) indic-
ates the position of the saw blade when making a 45° cut –
when used without a guide rail.
Start-up
Pay attention to the mains voltage. The voltage of the
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power source must match the voltage specified on the
rating plate of the power tool. Power tools marked
with 230 V can also be operated with 220 V.
Products that are only sold in AUS and NZ: Use a resid-
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ual current device (RCD) with a nominal residual current
of 30 mA or less.

Switching on/off

To start the power tool, first press the lock-off switch (2),
then press and hold the on/off switch (1).
Pressing the lock-off switch (2) also unlocks the plunge func-
tion and allows the power tool to be pushed down. This
causes the application tool to plunge into the workpiece.
Raising the power tool causes it to spring back into the start-
ing position and the plunge function locks again.
To switch off the power tool, release the on/off switch (1).
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