Working Advice; Starting Operation - Bosch GCD 12 JL Professional Notice Originale

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22 | English
Clamping the Workpiece (see figure G)
To ensure optimum working safety, the workpiece must al-
ways be firmly clamped.
Do not saw workpieces that are too small to clamp.
Long workpieces must be underlaid or supported at their free
end.
– Place the workpiece against the angle stop 6.
– Slide the clamping spindle 7 against the workpiece and
firmly clamp the workpiece with the spindle handle 9.
Loosening the Workpiece
– Loosen the spindle handle 9.
– Tilt up the quick release 8 and pull the clamping spindle 7
away from the workpiece.

Working Advice

General Sawing Instructions
Protect the saw blade against impact and shock. Do not sub-
ject the saw blade to lateral pressure.
Do not saw warped/bent workpieces. The workpiece must al-
ways have a straight edge to face against the fence.
Long workpieces must be underlaid or supported at their free
end.
Permissible Workpiece Dimensions
Maximum workpiece sizes:
Workpiece Form
100 x 100
110 x 110
Minimum workpiece sizes (= all workpieces that can be
clamped via the clamping spindle 7): Length 80 mm
Cutting depth, max. (0°/0°): 115 mm
Dust- / Chip Disposal (see figure H)
Dusts from materials such lead-containing coatings, minerals
and metal can be harmful to one's health. Contact with or in-
haling the dusts can trigger allergic reactions to the operator
or bystanders and/or lead to respiratory infections.
Certain metal dusts are considered hazardous, especially in
conjunction with alloys such as zinc, aluminium or chromium.
Materials containing asbestos may only be worked by special-
ists.
1 609 92A 0XZ | (3.9.14)
– 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 mate-
rials to be worked.
The saw blade 31 can become blocked by dust, chips or work-
piece fragments in the slot of the saw table 25.
– Switch the machine off and pull the mains plug from the
– Wait until the saw blade has come to a complete stop.
– Pull out the chip drawer 24 and empty if completely.
 Prevent dust accumulation at the workplace. Dusts can

Starting Operation

 Observe the mains voltage! The voltage of the power
Position of the Operator (see figure I)
 Do not stand in a line with the saw blade in front of the
– Keep hands, fingers and arms away from the rotating saw
– Do not cross your arms when operating the tool arm.
Switching On (see figure J)
Mitre/Bevel Angle
To save energy, only switch the power tool on when using it.
0° 45°
– To start the machine, press the On/Off switch 17 and keep
115 Ø 90 Ø
Note: For safety reasons, the On/Off switch 17 cannot be
locked; it must remain pressed during the entire operation.
The tool arm can be guided down only after pushing the lock-
85 x 85
ing lever 1.
– For sawing, the locking lever 1 must be pushed in addition
Soft starting
158 x 80 85 x 85
The electronic soft starting feature limits the torque upon
switching on and increases the working life of the motor.
Switching Off
– To switch off the machine, release the On/Off switch 17.
85 x 85
Sawing
– Firmly clamp the workpiece as appropriate for its dimen-
– Set the desired mitre angle.
– Switch on the machine.
– Push the locking lever 1 and guide the tool arm slowly
– Saw through the workpiece applying uniform feed.
– Switch off the machine and wait until the saw blade has
– Guide the tool arm slowly upward.
socket outlet.
easily ignite.
source must correspond with the data on the type plate of
the machine.
machine. Always stand aside of the saw blade. This pro-
tects your body against possible kickback.
blade.
it pressed.
to pressing the On/Off switch.
sions.
downward with the tool handle 16.
come to a complete stop.
Bosch Power Tools