Working Advice; Permissible Workpiece Dimensions - Bosch GCM 12 GDL Professional Manual Original

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OBJ_BUCH-1360-003.book Page 39 Wednesday, November 11, 2015 2:13 PM
Reduced starting current
The electronic reduced starting current limits the power con-
sumption when switching the tool on and enables operation
from a 13 ampere fuse.
Note: When the machine runs at full speed immediately after
switching on, the reduced starting current has failed. The
power tool should be sent immediately to an after-sales ser-
vice (for addresses, see section "After-sales Service and Ap-
plication Service", page 44).

Working Advice

General Sawing Instructions
 Always firmly tighten locking knob 15 and lock lever 17
before sawing. Otherwise the saw blade could become
jammed in the workpiece.
 For all cuts, it must first be ensured that the saw blade
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 al-
ways have a straight edge to face against the fence.
Long workpieces must be underlaid or supported at their free
end.
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 sizes:
Mitre/Bevel Angle
Horizontal Vertical
0° 0°
45° 0°
0° 45° (leftward)
0° 45° (rightward)
45° 45° (leftward)
45° 45° (rightward)
Minimum workpiece sizes (= all workpieces that can be clamped left or right from the saw blade with the supplied material
clamp 22): 160 x 335 mm (length x width)
Cutting depth, max. (0°/0°): 104 mm
Bosch Power Tools
– Switch on the laser beams with switch 61.
– Align your mark on the workpiece between both laser lines.
Note: Before sawing, check if the cutting width is still indicat-
ed correctly (see "Adjusting the Laser", page 42). The laser
beams, as an example, can misadjust through vibrations from
intensive use.
Position of the Operator (see figure N)
 Do not stand in a line with the saw blade in front of the
machine. Always stand aside of the saw blade. This pro-
tects your body against possible kickback.
– Keep hands, fingers and arms away from the rotating saw
blade.
– Do not stand in front of the glide arm with your arms
crossed.
Replacing Insert Plates (see figure O)
The red insert plates 13 can become worn after prolonged
use of the machine.
Replace defective insert plates.
– Bring the power tool into the working position.
– Unscrew screws 62 with the provided hex key (4 mm) 20
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 62 so that the saw blade does not come into
contact with the insert plate over the complete length of
the possible slide motion.
– Repeat the work steps in the same manner for the left-hand
insert plate.
Height x Width [mm]
Workpiece against fence
104 x 335
104 x 240
50 x 335
40 x 335
50 x 240
40 x 240
English | 39
Workpiece against
spacer (accessory)
110 x 240
110 x 110
50 x 295
40 x 295
50 x 200
40 x 200
1 609 92A 285 | (11.11.15)