Bosch GCM 8 SJL Original Instructions Manual page 18

OBJ_BUCH-1827-001.book Page 18 Wednesday, January 9, 2013 11:31 AM
18 | English
– Screw the insert plate as far as possible to the right with
the screws 49 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
 Always tighten the locking knob 20 firmly before saw-
ing. Otherwise the saw blade can become wedged in the
workpiece.
Sawing without Slide Movement (Cutting Off) (see
figure P)
– For cuts without slide movement (small workpieces), loos-
en the locking screw 33 in case it is tightened. Slide the
tool arm to the stop in the direction of the fence 14 and
retighten the locking screw 33.
– Set the desired mitre angle.
– Firmly clamp the workpiece as appropriate for its dimen-
sions.
– Switch on the machine.
– Press locking switch 9 and slowly guide the tool arm down-
ward by the handle 8.
– 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 33 in case it is tightened.
– Set the desired mitre angle.
– Firmly clamp the workpiece as appropriate for its dimen-
sions.
– Pull the tool arm away from the fence 14 far enough so that
the saw blade is in front of the workpiece.
– Switch on the machine.
– Press locking switch 9 and slowly guide the tool arm down-
ward by the handle 8.
– Press the tool arm in the direction of the fence 14 and 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 Workpieces of the Same Length (see figure Q)
The material stop 36 (accessory) can be used for easily saw-
ing workpieces to the same length.
The material stop can be mounted on either side of the saw ta-
ble extension 13.
– Loosen lock screw 50 and swing the material stop 36 over
clamping screw 51.
– Retighten lock screw 50.
– Adjust the saw table extension 13 to the desired length
(see "Extending the Saw Table", page 16).
1 609 92A 04J | (9.1.13)
Adjusting the Depth Stop (Sawing Grooves) (see figure R)
The depth stop must be adjusted when a trench gap is to be
sawed.
– Swivel the depth stop 32 outward.
– Press locking lever 9 and tilt the tool arm to the desired po-
sition.
– Turn adjusting screw 4, until the screw end touches depth
stop 32.
– Guide the tool arm slowly upward.
Special Workpieces
When sawing curved or round workpieces, these must be es-
pecially secured against slipping. At the cutting line, no gap
may exist between workpiece, fence and saw table.
Provide for special fixtures, if required.
Checking and Adjusting the Basic Adjustment
 Before any work on the machine itself, pull the mains
plug.
To ensure precise cuts, the basic adjustment of the machine
must be checked and adjusted as necessary after intensive
use.
A certain level of experience and appropriate specialty tools
are required for this.
A Bosch after-sales service station will handle this mainte-
nance task quickly and reliably.
Adjusting the Laser
Note: To test the laser function, the machine must be con-
nected to power.
 While adjusting the laser (e. g. when moving the tool
arm), never actuate the On/Off switch. Accidental start-
ing of the power tool can lead to injuries.
– Bring the power tool into the working position.
– Turn the saw table 15 to the 0° detent 24. The lever 21
must be felt to engage in the detent.
– Switch the laser beam on with switch 39.
Checking: (see figure S1)
– Draw a straight cutting line on the workpiece.
– Press locking switch 9 and slowly guide the tool arm down-
ward by the handle 8.
– Align the workpiece in such a manner that the teeth of the
saw blade are in alignment with the cutting line.
– Hold the workpiece in this position and slowly guide the
tool arm upward again.
– Clamp the workpiece.
The laser beam must be in alignment with the cutting line on
the workpiece over the complete length, also when the tool
arm is lowered.
Adjusting: (see figure S2)
– Screw the adjustment screw 52 in or out using a suitable
screwdriver until the laser beam is parallel with the cutting
line on the workpiece over the complete length.
One rotation in anticlockwise direction moves the laser beam
from left to right; one rotation in clockwise direction moves
the laser beam from right to left.
Bosch Power Tools