Bosch GCM 8 S Professional Manual Original página 30

OBJ_BUCH-198-007.book Page 30 Friday, June 10, 2011 9:29 AM
30 | English
Starting Operation
Observe correct mains voltage! The voltage of the pow-
er source must agree with the voltage specified on the
nameplate of the machine. Power tools marked with
230 V can also be operated with 220 V.
Switching On (see figure I)
– For starting operation, pull the On/Off switch 4 in the di-
rection of the handle 5.
Note: For safety reasons, the On/Off switch 4 cannot be
locked; it must remain pressed during the entire operation.
The tool arm can be guided down only after pushing the lock-
ing lever 35.
– For sawing, the locking lever 35 must be pushed in addi-
tion to pressing the On/Off switch.
Switching Off
– To switch off the machine, release the On/Off switch 4.
Working Advice
General Sawing Instructions
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. To additionally extend the saw table, an extension bar
17 (accessory) can be mounted both on the left and right side
of the power tool.
Illuminating the Work Area (see figure J)
Provide for sufficient lighting of the direct working area.
– For this, switch on the lighting unit 45 with the switch 30.
Marking the Cutting Line (see figure K)
A laser beam indicates the cutting line of the saw blade. This
allows for exact positioning of the workpiece for sawing, with-
out having to open the retracting blade guard.
– For this, switch the laser beam on with the switch 29.
– Align the cutting mark on your workpiece with reference to
the right-hand edge of the laser line.
Note: Before sawing, check if the cutting line is still indicated
correctly (see "Adjusting the Laser", page 32). The laser
beam, as an example, can misadjust due to vibrations after in-
tensive use.
Position of the Operator (see figure L)
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 cross your arms when operating the tool arm.
1 609 929 X05 | (10.6.11)
Permissible Workpiece Dimensions
Maximal workpiece sizes:
Mitre/Bevel Angle
Horizontal Vertical
90° 90°
45° 90°
90° 45°
Minimal workpiece sizes (= all workpieces that can be
clamped left or right from the saw blade with the supplied ma-
terial clamp 42):
185 x 40 mm (length x width)
Cutting capacity, max. (90°/90°): 60 mm
Replacing Insert Plates (see figure M)
The red insert plates 10 can become worn after long use of
the machine.
Replace defective insert plates.
– Bring the power tool into the working position.
– Unscrew the screws 48 using the provided Phillips screw-
driver 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 48 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.
Sawing
Sawing without Slide Movement (Cutting Off)
(see figure O)
– For cuts without slide movement (small workpieces), loos-
en the locking screw 25 in case it is tightened. Slide the
tool arm to the stop in the direction of the fence 18 and
retighten the locking screw 25.
– Firmly clamp the workpiece as appropriate for its dimen-
sions.
– Set the desired mitre angle.
– Switch on the machine.
– Push the locking lever 35 and guide the tool arm slowly
downward with the tool handle 5.
– Saw through the workpiece applying uniform feed.
– Switch off the machine and wait until the saw blade has
come to a complete stop.
– Guide the tool arm slowly upward.
Sawing with Slide Movement
– For cuts using the slide device 1 (wide workpieces), loosen
the locking screw 25 in case it is tightened.
– Firmly clamp the workpiece as appropriate for its dimen-
sions.
– Set the desired mitre angle.
– Pull the tool arm away from the fence 18 far enough so that
the saw blade is in front of the workpiece.
– Switch on the machine.
– Push the locking lever 35 and guide the tool arm slowly
downward with the tool handle 5.
Height x Width
[mm]
60 x 270
60 x 190
42 x 270
Bosch Power Tools