Dust/Chip Extraction; Operating Modes; Starting Operation - Bosch UniversalCirc 12 Manual Original

OBJ_BUCH-2942-001.book Page 18 Tuesday, August 16, 2016 11:43 AM
18 | English
– Place the saw blade 24 onto the mounting flange 23. The
cutting direction of the teeth (direction of arrow on the saw
blade) and the direction-of-rotation arrow on the retract-
ing blade guard 20 must correspond.
– Mount the clamping flange 25 and screw in the clamping
bolt 26 turning in rotation direction . Observe correct
mounting position of mounting flange 23 and clamping
flange 25.
– Press the spindle lock button 6 and keep it pressed.
– With the hex key 5, tighten the clamping bolt 26 turning in
rotation direction . The tightening torque is between
6–9 Nm, which corresponds to hand tight plus ¼ turn.

Dust/Chip Extraction

 Before any work on the power tool, remove the battery.
 Dust from materials such as lead-containing coatings,
some wood types, minerals and metal can be harmful to
one's health. Touching or breathing-in the dust can cause
allergic reactions and/or lead to respiratory infections of
the user or bystanders.
Certain dust, such as oak or beech dust, is considered car-
cinogenic, especially in connection with wood-treatment
additives (chromate, wood preservative). Materials con-
taining asbestos may only be worked by specialists.
– To achieve a high level of dust extraction, use a suitable
dust extractor together with this power tool.
– Provide for good ventilation of the working place.
– It is recommended to wear a P2 filter-class respirator.
Observe the relevant regulations in your country for the
materials to be worked.
Mounting the Extraction Adapter (see figure B)
Fasten the extraction adapter 30 to the base plate 7 with the
fastening screw 29.
A vacuum hose with a diameter of 35 mm can be connected to
the extraction adapter 30.
 The extraction adapter may not be mounted when no
external dust extraction is connected. Otherwise the ex-
traction channel can become clogged.
 Neither a dust bag nor a dust box may be connected to
the extraction adapter. Otherwise the extraction system
can become clogged.
To ensure optimum extraction, the extraction adapter 30
must be cleaned regularly.
External Dust Extraction
Connect the vacuum hose 31 to a vacuum cleaner (accesso-
ry). An overview for connecting to various vacuum cleaners
can be found at the end of this manual.
The vacuum cleaner must be suitable for the material being
worked.
When vacuuming dry dust that is especially detrimental to
health or carcinogenic, use a special vacuum cleaner.
1 609 92A 32F | (16.8.16)
Operation

Operating Modes

 Before any work on the power tool, remove the battery.
Adjusting the Cutting Depth (see figure C)
 Adjust the cutting depth to the thickness of the work-
piece. Less than a full tooth of the blade teeth should be
visible below the workpiece.
Loosen wing bolt 18. For a smaller cutting depth, pull the ma-
chine from the base plate 7; for a larger cutting depth, push
the machine toward the base plate 7. Adjust the desired cut-
ting depth at the cutting-depth scale 19. Tighten wing bolt 18
again.
When setting the cutting depth, use the reference mark 32 to
the side of the cutting-depth scale 19.
Adjusting the Cutting Angle
It is best to place the machine on the face side of the blade
guard 13.
Loosen wing bolt 10. Tilt the saw sidewards. Adjust the de-
sired setting at the scale 9. Tighten wing bolt 10 again.
When setting the mitre angle, use the reference mark 28 (up-
per edge of the holder).
Note: For bevel cuts, the cutting depth is smaller than the set-
ting indicated on the cutting-depth scale 19.
Cutting Marks (see figure F)
The 0° cutting mark 12 indicates the position of the saw blade
for right-angled cuts. The 45° cutting mark 11 indicates the
position of the saw blade for 45° cuts.

Starting Operation

Inserting the battery
 Use only original Bosch lithium-ion batteries with the
voltage listed on the nameplate of your power tool.
Using other batteries can lead to injuries and pose a fire
hazard.
Insert the charged battery 2 into the handle until it can be felt
to engage and faces flush against the handle.
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 17 will help you in protecting the bat-
tery against overheating and the motor against overloading.
Bosch Power Tools