Dust/Chip Extraction - Bosch GTS 254 Original Instructions Manual

– Insert the riving knife (27) and push it down as far as pos-
sible.
– Re-tighten the bolt (40) using the ring spanner (35).
– Fit the table insert (8).
Fitting the table insert (see figure d)
– Hook the table insert (8) into the rear recesses (41) of
the tool chamber.
– Guide the table insert down.
– Press down on the table insert until it engages in the front
of the tool chamber.
Fitting the anti-kickback pawls (see figure e)
In the event of a kickback, the anti-kickback pawls (7) pre-
vent the workpiece from being flung towards the operator.
The pawls' sharp teeth dig into the surface of the workpiece
and hold it back.
– Press the anti-kickback pawls' (7) pushbutton (42) to-
gether.
This pulls back the guide pin.
– Guide the anti-kickback pawls (7) over the riving
knife (27) and release the pushbutton (42).
– Slide the anti-kickback pawls towards the protective
cover until the guide pin engages in the rear hole at the
top of the riving knife.
– Check that the guide pin is firmly connected to the hole
and that the anti-kickback pawls are functioning properly.
Carefully lift the anti-kickback pawls. When released, the
spring-loaded pawls must go down and touch the table in-
sert.
Fitting the parallel guide (see figure f)
The parallel guide (9) can be positioned on either the left or
the right of the saw blade.
– Loosen the clamping handle (43) of the parallel guide
(9). This lightens the load on the V guide (44).
– First insert the parallel guide with the V guide into the
guide groove (45) of the saw table. Then position the par-
allel guide in the front guide groove (46) of the saw table.
The parallel guide can now be moved freely.
– To secure the parallel guide, push the clamping handle
(43) down.
Fitting the additional parallel guide (see figure g)
To saw narrow workpieces and bevel angles, you must fit
the additional parallel guide (47) on the parallel guide (9).
The additional parallel guide can be fitted on the left or right
of the parallel guide (9) as required.
Use the "additional parallel guide" fastening set (48) (two
fastening screws, two wing nuts) for fitting the guide.
– Slide the fastening screws through the lateral holes on the
parallel guide (9).
– The heads of the screws are used to guide the additional
parallel guide.
– Slide the additional parallel guide (47) over the heads of
the fastening screws.
– Tighten the screws using the wing nuts.
Bosch Power Tools
Fitting the angle guide (see figure h1-h2)
– Push the rail (49) of the angle guide (3) into one of the
guide grooves (5) provided in the saw table.
To make it easier to position long workpieces, the angle
guide can be extended with the profile rail (50).
– If necessary, fit the profile rail on the angle guide using
the wing nuts (51).

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.
The dust/chip extraction system can be blocked by dust,
chips or fragments of the workpiece.
– Switch the power tool off and pull the mains plug out of
the socket.
– Wait until the saw blade has come to a complete stop.
– Determine the cause of the blockage and eliminate it.
Avoid dust accumulation at the workplace. Dust can
u
easily ignite.
To prevent the risk of fire when sawing aluminium,
u
empty the chip ejector and do not use chip extraction.
Emptying the chip ejector (see figure i)
You can open the lower saw blade cover (52) to remove
workpiece fragments and large chips.
– Switch the power tool off and pull the mains plug out of
the plug socket.
– Wait until the saw blade has come to a complete stop.
– Tilt the power tool sideways.
– Loosen the fastening screws (53) and open the lower saw
blade cover (52).
– Remove workpiece fragments and chips.
– Close the lower saw blade cover and screw it back on.
– Bring the power tool into the work position.
External dust extraction (see figure j)
– Firmly insert a suitable dust extraction hose into the dust
extraction adapter (34).
The dust extractor must be suitable for the material being
worked.
When extracting dry dust that is especially detrimental to
health or carcinogenic, use a special dust extractor.
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1 609 92A 61K | (14.12.2020)