Marking The Cutting Line; Hand Positioning; Permissible Workpiece Dimensions; Replacing Insert Plates - Bosch GTM 12 Professional Originalbetriebsanleitung

OBJ_BUCH-302-005.book Page 62 Tuesday, June 9, 2009 2:19 PM
62 | English
– Loosen the lock screw 51 and move the light-
ing unit so that the illumination of the work-
ing area is optimal.
– Retighten the lock screw again.
– If required, each lamp can be aligned individ-
ually.
Note: For larger vertical bevel angles, pay atten-
tion that the lighting unit 35 does not collide
with the workpiece or the fence during sawing.
(see figure J)

Marking the Cutting Line

(see figure M)
A laser beam indicates the cutting line of the
saw blade. This allows for exact positioning of
the workpiece for sawing, without having to
open the retracting blade guard.
– For this, switch the laser beam on with the
switch 37.
– Align the cutting mark on your workpiece
with reference to the right-hand edge of the
laser line.
– Before sawing, check if the cutting line is still
indicated correctly (see "Adjusting the La-
ser", page 65). The laser beam, as an exam-
ple, can misadjust due to vibrations after in-
tensive use.

Hand Positioning

(see figure N)
– Keep hands, fingers and arms away from the
rotating saw blade.
– Do not cross your arms when operating the
tool arm.

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 a screw clamp)
1 609 929 U05 | (9.6.09)

Replacing Insert Plates

(see figure
The red insert plates 26 can become worn after
long use of the machine.
Replace defective insert plates.
– Bring the power tool into the chop and mitre
saw working position. (see "Working Posi-
tion", page 59)
– Unscrew the screws 52 using the slotted
screwdriver provided and remove the old in-
sert plates.
– Insert the new insert plates and screw in all
screws 52 again.

Sawing

Cutting Off

– Firmly clamp the workpiece as appropriate
for its dimensions.
– Adjust the requested horizontal and/or verti-
cal mitre/bevel angle.
– Switch on the machine.
– Push button 19 and slowly guide the tool arm
downward with the handle 20.
– 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.

Special Workpieces

When sawing curved or round workpieces,
these must be especially secured against slip-
ping. At the cutting line, no gap may exist be-
tween workpiece, fence and saw table.
Provide for special fixtures, if required.
Height x Width
95 x 151 mm
95 x 90 mm
60 x 151 mm
O)
Bosch Power Tools