Practical Advice - Bosch GCM12 SDE Professional Originalbetriebsanleitung

38 | English

Practical advice

General sawing instructions
Always tighten the locking knob (23) and the clamp-
u
ing lever (8) firmly before sawing. Otherwise the saw
blade can become wedged in the workpiece.
For all cuts, it must first be ensured that the saw blade
u
at no time can come in contact with the fence, screw
clamps or other machine parts. Remove any mounted
auxiliary stops or adjust them accordingly.
Protect the saw blade against impact and shock. Do not sub-
ject the saw blade to lateral pressure.
Only saw materials which are permitted within the scope of
the intended use.
Do not saw warped/bent workpieces. The workpiece must
always have a straight edge to face against the fence.
The free end of long and heavy workpieces must have some-
thing placed underneath it or be supported.
Make sure that the retracting blade guard operates properly
and that it can move freely. The retracting blade guard must
open when the tool arm is guided downwards. When the tool
arm is guided upwards, the retracting blade guard must
close again over the saw blade and lock in the uppermost po-
sition of the tool arm.
Marking the cutting line (see figure L)
Two laser beams indicate the cutting width of the saw blade.
This allows for exact positioning of the workpiece for sawing,
without having to open the retracting blade guard.
– Switch on the laser beams with the switch (34).
– Position your mark on the workpiece between the two
laser lines.
Note: Before sawing, check if the cutting width is still indic-
ated correctly Adjusting the Laser. Vibrations during intens-
ive use, for example, can cause the laser beams to become
misaligned.
Position of the operator (see figure M)
Do not stand in line with the saw blade in front of the
u
power tool. Always stand to the side of the saw blade.
This protects your body against possible kickback.
– Keep hands, fingers and arms away from the rotating saw
blade.
– Do not reach one hand across the other when in front of
the tool arm.
Permissible workpiece dimensions
Mitre angle Bevel angle
0° 0°
45° 0°
0° 45° (left)
0° 45° (right)
1 609 92A 5U9 | (20.10.2020)
Mitre angle
A) With distance stop (see figure N)
B) With spacer for slide mechanism (see figure S)
Minimum workpiece dimensions (= all workpieces that can
be secured left or right of the saw blade using the supplied
screw clamp (40)): 200 mm x 40 mm (length x width)
Replacing the Insert Plates (see figure O)
The red insert plates (21) can become worn after prolonged
use of the power tool.
Replace defective insert plates.
– Bring the power tool into the work position.
– Loosen the screws (54) using the hex key (4 mm) (39)
and remove the old insert plates.
– Insert the new right-hand insert plate.
– Screw the insert plate as far as possible to the right with
the screws (54) so that the saw blade does not come into
contact with the insert plate over the entire length of the
possible slide motion.
– Repeat the work steps in the same manner for the left-
hand insert plate.
Sawing
Always tighten the locking knob (23) and the clamp-
u
ing lever (8) firmly before sawing. Otherwise the saw
blade can become wedged in the workpiece.
Adjusting the Speed (not available in all country-specific
versions)
The speed regulator (9) enables continuously variable ad-
justment of the speed of the power tool even during opera-
tion.
Note: Always set the suitable speed for the workpiece ma-
terial (see table below). This will prevent the saw teeth over-
heating when sawing.
Speed setting
1
2
3
4
5
Height x width
6
[mm]
Sawing Without Slide Movement (cutting off) (see
85 x 370
figure P)
A)
70 x 400
– To perform cuts without slide movement (small work-
A)
120 x 200
B) pieces), loosen the locking screw (6) if it is clamping the
175 x 60
slide device (37) in place. Push the tool arm all the way
85 x 250
towards the fences (2) and (1) and retighten the locking
B)
175 x 20
screw (6) to lock the slide device in place.
60 x 360
– Firmly clamp the workpiece as appropriate for its dimen-
38 x 370
sions.
Autogoods "130"
Bevel angle
45° 45° (left)
45° 45° (right)
Aluminium
Height x width
[mm]
60 x 240
38 x 250
Material
Plastics
Wood
Bosch Power Tools