Bosch GTM 12 JL Professional Notice Originale page 46

OBJ_BUCH-1688-007.book Page 46 Friday, February 24, 2017 12:15 PM
46 | English
Ceiling Strips/Mouldings (According to US Standard)
When the ceiling strips/mouldings are to be sawn lying flat on the saw table, the standard mitre angles
52°
of 31.6° (horizontal) and 33.9° (vertical) must be set.
The following table contains instructions for sawing ceiling strips/mouldings.
38°
Settings
Bevel angle
Ceiling strip/moulding
Inner corner Horizontal mitre angle
Positioning of work-
piece
The finished work-
piece is located ...
Outer corner Horizontal mitre angle
Positioning of work-
piece
The finished work-
piece is located ...
Checking and Adjusting the Basic Adjustment
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
– Bring the power tool into the table saw working position.
(see "Working Position", page 48)
– Turn the saw table 22 to the 0° detent 27. The lever 26
must be felt to engage in the detent.
Checking: (see figure M1)
– Draw a straight cutting line on the workpiece.
– Push button 17 and slowly guide the tool arm downward
with the handle 18.
– 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.
– Switch the laser beam on with switch 36.
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.
1 609 92A 3S7 | (24.2.17)
Placed
against the
fence
52°
0°
Left side Right side
45° right 45° left
Bottom edge Bottom edge
against the fence against the fence
... to the right of the ... to the left of the
cut cut
45° left 45° right
Bottom edge Bottom edge
against the fence against the fence
... to the right of the ... to the left of the
cut cut
Adjusting the Parallelism: (see figure
– Undo the rubber cap 50.
– Screw the adjustment screw 51 in or out using a suitable
screwdriver until the laser beam is parallel with the cutting
line on the workpiece over the complete length.
Adjusting the Flush Levelling: (see figure
An adjustment screw 52, which is located below the opening
marked with "R/L", is used for adjustment of the flush leve-
ling.
– Screw the adjustment screw 52 in or out with the slotted
screwdriver provided until the parallel laser beam is flush
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.
Adjusting the Lateral Deviation while Moving the Tool
Arm: (see figure
– Open the side rubber cap 53.
– If the laser beam moves towards the left when lowering
the tool arm, turn adjustment screw 54 clockwise using a
suitable screwdriver.
If the laser beam moves towards the right, turn adjust-
ment screw 54 anticlockwise.
– After adjusting, check the flushness with the cutting line
again. If required, align the laser beam with the adjustment
screw 52 again.
Lying flat on
the saw table
33,9°
Left side Right side
31.6° right 31.6° left
Upper edge against Bottom edge
the fence against the fence
... to the left of the ... to the left of the
cut cut
31.6° left 31.6° right
Bottom edge Upper edge against
against the fence the fence
... to the right of the ... to the right of the
cut cut
M2)
M3)
M4)
Bosch Power Tools