Bosch Professional GST 140 BCE Original Instructions Manual page 10

10 | English
Anti-splinter guard (see figure F)
The anti-splinter guard (16) (accessory) can prevent splin-
tering of the surface while sawing wood. The anti-splinter
guard can only be used with certain saw blade types and only
at a cutting angle of 0°. When sawing with the anti-splinter
guard, the base plate (6) must not be moved to the rear for
sawing close to edges.
Slide the anti-splinter guard (16) into the base plate (6)
from the front.
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
u
easily ignite.
Hood (see figure G)
Fit the hood (20) before you connect the power tool to the
dust extraction system.
Attach the hood (20) to the power tool so that the bracket
locks into place on the shock protection guard (13).
Remove the hood (20) when working without a dust extrac-
tion system and for mitre/bevel cuts. To do this, pull the
hood forwards off the shock protection guard (13).
Connecting the dust extraction (see figures H–I)
Fit the extraction outlet (21) in the recesses of the base
plate (6).
Ensure that the cam on the extraction outlet slots into the
corresponding recess of the base plate (6) as shown in the
figure H.
Connect a dust extraction hose (22) (accessory) to the ex-
traction outlet (21). Connect the dust extraction hose (22)
to a dust extractor (accessory).
You will find an overview of connecting to various dust ex-
tractors at the end of these operating instructions.
For optimum dust extraction, where possible use the anti-
splinter guard (16).
Switch off the sawdust blower device when you have con-
nected the dust extraction system.
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.
1 609 92A 50K | (10.05.2019)
Operation
Products that are only sold in AUS and NZ: Use a resid-
u
ual current device (RCD) with a nominal residual current
of 30 mA or less.
Operating modes
Pull the plug out of the socket before carrying out any
u
work on the power tool.
Pendulum action settings
The pendulum action can be adjusted using four different
settings, allowing the cutting speed, cutting capacity and the
cut itself to be optimally adapted to the material that you
want to cut.
You can also adjust the pendulum action during operation
using the adjusting lever (8).
Level 0 No pendulum action
Level I Low pendulum action
Level II Moderate pendulum action
Level III High pendulum action
The optimum pendulum level for each application can be de-
termined by a practical test. Note the following recommend-
ations:
– Select a lower pendulum level or switch off the pendulum
action completely if you wish to produce a finer or cleaner
cutting edge.
– Switch off the pendulum action when machining thin ma-
terials (e.g. sheets).
– Work on hard materials (e.g. steel) with low pendulum ac-
tion.
– You can work on soft materials and saw wood in the direc-
tion of the grain using maximum pendulum action.
Adjusting the mitre/bevel angle (see figure J)
The base plate (6) can be swivelled to the right or left to
make mitre cuts up to 45°.
The hood (20), the extraction outlet (21) and the anti-
splinter guard (16) cannot be used while mitre/bevel cuts
are being made.
– Push the extraction outlet (21) gently upwards and pull it
out of the base plate (6).
– Remove the hood (20) and the anti-splinter guard (16).
– Open the base plate clamping lever (17) and push the
base plate (6) slightly towards the power cable.
– The base plate has lock-in points on the left and right so
that precise mitre/bevel angles can be set. Swivel the
base plate (6) to the required position according to the
scale (23). Other mitre/bevel angles can be adjusted us-
ing a protractor.
– Then push the base plate (6) towards the saw blade (11)
as far as it will go.
– Close the clamping lever (17) to lock the base plate in the
set position.
Bosch Power Tools