Starting Operation - Berner BACROS BL 12V Manual Original

tion with wood treatment additives (chromate,
wood preservative). Materials containing asbestos
may only be machined by specialists.
– Use a dust extraction system that is suitable for
the material 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.
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Dust can easily ignite.
Self-generated dust extraction with dust bag
(see figures D–F)
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Place and move the complete dust bag (2) onto
the extraction outlet (12) until it lines up precisely
with the power tool.
To empty the dust bag(13), pull the complete dust
bag (2) away from the extraction outlet (12). Un-
screw the adapter (14) from the dust bag (13)
and empty the dust bag.
Note: Empty the dust bag (13) in good time to en-
sure optimum dust extraction.
When working vertical surfaces, hold the power
tool in such a manner that the dust bag (2) faces
downward.
External dust extraction (see figure G)
Fit a dust extraction hose (15) onto the extraction
outlet (12).
Connect the dust extraction hose (15) to an ex-
tractor (accessory).
The dust extractor must be suitable for the mater-
ial being worked.
Application Overview
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Application/Material
Removing – Removing old paint and varnish
– Sanding wood
– Sanding thermoplastic synthetic materials
Preparing – Sanding wood and veneer prior to painting
– Edge chamfering on wooden materials
– Smoothing wooden surfaces before staining
– Intermediate lacquer sanding and sanding
undercoats
– Intermediate lacquer sanding on edges
Finishing – Sanding wood
– Sanding solid wood edges and veneer
edges
– Lacquer sanding on stained surfaces and
edges
1 609 92A 72P • 4.10.21
When extracting dry dust that is especially detri-
mental to health or carcinogenic, use a special
dust extractor.
When working on vertical surfaces, hold the
power tool with the dust extraction hose facing
downwards.
Operation

Starting Operation

Switching On/Off
Make sure that you are able to press the On/
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Off switch without releasing the handle.
To switch on the power tool, press the on/off
switch (1).
To switch off the power tool, press the on/off
switch (1) again.
Preselecting the orbital stroke rate
You can even preselect the orbital stroke rate dur-
ing operation using the necessary orbital stroke
rate preselection thumbwheel (6).
1–2 Low orbital stroke rate
3–4 Medium orbital stroke rate
5–6 High orbital stroke rate
The required orbital stroke rate is dependent on
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the material and the work conditions and can be
determined using practical tests.
The Constant Electronic keeps the orbital stroke
rate at no load and under load virtually consistent,
guaranteeing uniform performance.
After working at a low orbital stoke rate for an ex-
tended period, you should operate the power tool
at the maximum orbital stroke rate for approxim-
ately three minutes without load to cool it down.
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Abrasive Speed setting
P60–P100 4–6
P60–P100 1–3
P120–P180 4–6
P220–P280 1–3
P150–P180 4–6
P240–P320 1–3
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