Bosch GCM 12 GDL Professional - Manual (Page 40)

40 | English
1 609 929 W31 | (6.4.11) Bosch Power Tools
– Hold the glide arm in this position and tighten lock lever 17
again.
The clamping force of the lock lever must securely hold the
position of the glide arm at any bevel angle.
Standard 22,5° (see figure K)
– Pull adjustment knob 34 completely outward and turn it by
90°. Now, tilt the glide arm via handle 4 until the glide arm
can be heard to engage.
Starting Operation
f Observe the mains voltage! The voltage of the power
source must correspond with the data on the type plate of
the machine.
Switching On (see figure L)
– For starting operation, pull the On/Off switch 60 in the di-
rection of the handle 4.
Note: For safety reasons, the On/Off switch 60 cannot be
locked; it must remain pressed during the entire operation.
The glide arm can only be guided downward by pressing lock-
ing lever 5.
– For sawing, the locking lever 5 must be pushed in addition
to pressing the On/Off switch.
Switching Off
– To switch off the machine, release the On/Off switch 60.
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 serv-
ice (for addresses, see section “After-sales Service and Cus-
tomer Assistance”, page 45).
Working Advice
General Sawing Instructions
f
Always firmly tighten locking knob 15 and lock lever 17
before sawing. Otherwise the saw blade could become
jammed in the workpiece.
f 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 possibly
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.
– 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 43). The laser
beams, as an example, can misadjust through vibrations from
intensive use.
Position of the Operator (see figure N)
f
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 long use of
the machine.
Replace defective insert plates.
– Bring the power tool into the working position.
– Unscrew screws 62 with the provided Allen 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.
Permissible Workpiece Dimensions
Maximal workpiece sizes:
Mitre/Bevel Angle Height x Width
[mm]
Horizontal Vertical Workpiece against
fence
Workpiece against
spacer (accessory)
0° 0° 104 x 335 110 x 240
45° 0° 104 x 240 110 x 110
0° 45° (leftward) 50 x 335 50 x 295
0° 45° (rightward) 40 x 335 40 x 295
45° 45° (leftward) 50 x 240 50 x 200
45° 45° (rightward) 40 x 240 40 x 200
OBJ_BUCH-1360-001.book Page 40 Wednesday, April 6, 2011 11:11 AM