Bosch GCM 12 GDL Professional Original Instructions Manual page 24

24 | English
Note: If the power tool runs at full speed immediately after
being switched on, this means that the starting current limit-
ation has failed. The power tool must be sent to the after-
sales service without delay. For addresses, see: After-sales
service and advice on using products.
Practical advice
General sawing instructions
Always tighten the locking knob (11) and the clamp-
u
ing handle (13) 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.
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 glide arm is guided downward. When the
glide arm is guided upward, 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 M)
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.
Permissible workpiece dimensions
Maximum workpiece dimensions:
Mitre angle Bevel angle
0°
45°
0° 45° (left)
0° 45° (right)
45° 45° (left)
45° 45° (right)
Minimum workpiece dimensions (= all workpieces that can be secured left or right of the saw blade using the supplied screw
clamps (18)): 160 x 335 mm (length x width)
Maximum cutting depth (0°/0°): 104 mm
Sawing
Always tighten the locking knob (11) and the clamp-
u
ing handle (13) firmly before sawing. Otherwise the
saw blade can become wedged in the workpiece.
1 609 92A 4CU | (19.09.2018)
Workpiece against fence
0°
0°
– Switch on the laser beams with the switch (59).
– 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 N)
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 arm across the other when in front of
the glide arm (27).
Replacing the Insert Plates (see figure O)
The red insert plates (9) 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 (60) using the hex key (4 mm) (16)
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 (60) 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.
Height x width [mm]
104 x 335
104 x 240
50 x 335
40 x 335
50 x 240
40 x 240
Sawing without Slide Movement (cutting off) (see figure
P)
– Push the glide arm (27) all the way back and secure it in
this position (see "Securing the Glide Arm (see figure
B2)", page 21).
Make sure that the depth stop (29) is pressed all the way
in and that the adjusting screw (28) fits through the re-
Workpiece against spacer (accessory)
110 x 240
110 x 110
50 x 295
40 x 295
50 x 200
40 x 200
Bosch Power Tools