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OBJ_BUCH-2920-001.book Page 19 Thursday, July 14, 2016 8:44 AM
Switching On and Off
To start the machine, first push the lock-off button for the
On/Off switch 3 and then press the On/Off switch 4 and keep
it pressed.
To switch off the machine, 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.
To save energy, only switch the power tool on when using it.
Run-on Brake
An integrated run-on brake reduces the run-on period of the
saw blade after switching off the machine.
Temperature Control/Overload Protection Indicator
The red LED indicator 16 will help you in protecting the bat-
tery against overheating and the motor against overloading.
When the LED indicator 16 continuously lights up red, the
temperature of the battery is too high and the machine
switches off automatically.
– Switch the power tool off.
– Allow the battery to cool down before continuing to work.
The LED indicator 16 flashes red, the power tool is blocked
and switches off automatically.
Remove the power tool from 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 discharging
by the "Electronic Cell Protection (ECP)". When the battery is
empty, the machine is switched off by means of a protective
circuit: The inserted tool no longer rotates.
Switching on the LED Work Area Illumination
The power light 26 lights up when the On/Off switch 4 is
slightly or completely pressed, and allows the work area to be
illuminated when lighting conditions are insufficient.
Working Advice
Protect saw blades against impact and shock.
Guide the machine evenly and with light feed in the cutting di-
rection. Excessive feed significantly reduces the service life of
the saw blade and can cause damage to the power tool.
Sawing performance and cutting quality depend essentially
on the condition and the tooth form of the saw blade. There-
fore, use only sharp saw blades that are suited for the material
to be worked.
Sawing Wood
The correct selection of the saw blade depends on the type
and quality of the wood and whether lengthway or crossway
cuts are required.
When cutting spruce lengthways, long spiral chips are
formed.
Beech and oak dusts are especially detrimental to health.
Therefore, work only with dust extraction.
Bosch Power Tools
Sawing with Parallel Guide (see figure D)
The parallel guide 32 enables exact cuts along a workpiece
edge and cutting strips of the same dimension.
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 (see figure D).
Sawing with Auxiliary Guide (see figure F)
For sawing large workpieces or straight edges, a board or
strip can be clamped to the workpiece as an auxiliary guide;
the base plate of the circular saw can be guided alongside the
auxiliary guide.
Sawing with Guide Rail (see figure E)
The guide rail 34 is used to carry out straight cuts.
Note: Use the guide rail 34 only for right-angled cuts. When
using for mitre cuts, the guide rail 34 can become damaged.
The adhesive coating prevents the guide rail from slipping and
protects the surface of the workpiece. The coating of the
guide rail allows the circular saw to glide 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 extend beyond the face side of
the workpiece where the cut is to be started.
Switch the machine on and guide it in the cutting direction ap-
plying moderate and steady feed.
Working with parallel guide/guide rail adapter and
vacuum hose
First mount the extraction adapter 29 with vacuum 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 extraction adapter 29!
Recommendations for Optimal Handling of the Battery
Protect the battery against moisture and water.
Store the battery only within a temperature range between
–20 °C and 50 °C. As an example, do not leave the battery in
the car in summer.
Occasionally clean the venting slots of the battery using a soft,
clean and dry brush.
A significantly reduced working period after charging indi-
cates that the battery is used and must be replaced.
Observe the notes for disposal.
Maintenance and Service
Maintenance and Cleaning
Before any work on the machine itself (e. g. mainte-
nance, tool change, etc.) as well as during transport
and storage, remove the battery from the power tool.
There is danger of injury when unintentionally actuating
the On/Off switch.
For safe and proper working, always keep the machine
and ventilation slots clean.
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1 609 92A 2CZ | (14.7.16)
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