Adjusting The Laser - Bosch GCM 12 SDE Professional Manual Original

Mitre angle Bevel angle
0° 45° (right)
45° 45° (left)
45° 45° (right)
A) With distance stop (see figure O)
B) With spacer for slide mechanism (see figure R)
Minimum workpiece dimensions (= all workpieces that can
be secured left or right of the saw blade using the supplied
screw clamp (40)): 200 mm x 40 mm (length x width)
Adjusting the Depth Stop (Sawing the Groove) (see
figure P)
The depth stop needs to be adjusted if you wish to saw a
groove.
– Swivel the depth stop (42) forwards.
– Swivel the tool arm by the handle (13) into the required
position.
– Turn the adjusting screw (41) until the end of the screw
touches the depth stop (42).
– Slowly guide the tool arm upwards.
Sawing workpieces of the same length (see figure Q)
The length stop (54) (accessory) can be used for easily saw-
ing workpieces of the same length.
The length stop can be mounted on either side of the saw
table extension (29).
– Loosen the locking screw (55) and move the length
stop (54) over the clamping screw (56).
– Re-tighten the locking screw (55).
– Set the saw table extension (29) to the required length.
Sawing wider mouldings (see figure R)
For sawing wider mouldings (max. height of 175 mm), use
the spacer (7).
– If tightened, loosen the locking screw (6) and pull the tool
arm forwards.
– Move the spacer (7) down onto the slide mechanism (37)
and slide the tool arm as far back as possible.
– Re-tighten the locking screw (6).
Special workpieces
When sawing curved or round workpieces, these must be es-
pecially secured against slipping. At the cutting line, there
should be no gap between the workpiece, fence and saw
table.
If necessary, you will need to manufacture special fixtures.
Replacing the Insert Plates (see figure S)
The red insert plates (21) can become worn after prolonged
use of the power tool.
Replace defective insert plates.
– Bring the power tool into the work position.
– Loosen the screws (57) using the hex key (4 mm) (39)
and remove the old insert plates.
– Insert the new right-hand insert plate.
Bosch Power Tools
– Screw the insert plate as far as possible to the right with
Height x width
the screws (57) so that the saw blade does not come into
[mm]
contact with the insert plate over the entire length of the
38 x 370
possible slide motion.
60 x 240
– Repeat the work steps in the same manner for the left-
38 x 250
hand insert plate.

Adjusting the laser

Note: To test the laser function, the power tool must be con-
nected to the power supply.
While adjusting the laser (e.g. when moving the tool
u
arm), never activate the on/off switch. Starting the
power tool accidentally can lead to injuries.
– Bring the power tool into the work position.
– Turn the saw table (20) to the 0° detent (27). The lever
(24) must be felt to engage in the detent.
Checking (see figure T1)
– Draw a straight cutting line on the workpiece.
– Slowly guide the tool arm downwards using the
handle (13).
– Position the workpiece so that the teeth of the saw blade
line up with the cutting line.
– Hold the workpiece in this position and slowly guide the
tool arm back up.
– Clamp the workpiece.
– Turn on the laser beam using the switch (34).
The laser beam must be flush with the cutting line on the
workpiece along its entire length, even if the tool arm is
guided downwards.
Adjusting the flush alignment (see figure T2)
1. Adjusting the right-hand laser beam:
– Turn the set screw (58) with the hex key (59) until the
right-hand laser beam is flush with the marked cutting line
on the workpiece along the entire length.
This also moves the left-hand laser beam.
One rotation anticlockwise moves the laser beam from left to
right; one rotation clockwise moves the laser beam from
right to left.
2. Adjusting the left-hand laser beam:
– Turn the set screw (60) with the hex key (59) until the
left-hand laser beam is at the same distance from the
marked cutting line on the workpiece as the right-hand
laser beam.
One rotation anticlockwise moves the laser beam from left to
right; one rotation clockwise moves the laser beam from
right to left.
Adjusting the parallelism (see figure T3)
– Remove the four screws (61) from the laser protection
cap (15) with a cross-headed screwdriver.
Note: To reach the front screws of the laser protection
cap, you must swing the retracting blade guard (16)
backwards.
– Remove the laser protection cap (15).
English | 39
1 609 92A 6SN | (12.07.2021)