Bosch Professional GCM 254 D Original Instructions Manual page 24

24 | English
The free end of long and heavy workpieces must have some-
thing placed underneath it or be supported.
Make sure that the retracting blade guard operates properly
and that it can move freely. The retracting blade guard must
open when the tool arm is guided downwards. When the tool
arm is guided upwards, the retracting blade guard must
close again over the saw blade and lock in the uppermost po-
sition of the tool arm.
Position of the operator (see figure M)
Do not stand in line with the saw blade in front of the
u
power tool. Always stand to the side of the saw blade.
This protects your body against possible kickback.
– Keep hands, fingers and arms away from the rotating saw
blade.
– Do not reach one hand across the other when in front of
the tool arm.
Sawing with slide movement
– For cuts made using the slide device (2) (wide work-
pieces), loosen the locking screw (1) if it is tightened.
– Set the required mitre and/or bevel angle as necessary.
– Press the workpiece firmly against the fences (18) and
(19).
– Firmly clamp the workpiece as appropriate for its dimen-
sions.
– Pull the tool arm away from the fence (18) until the saw
blade is in front of the workpiece.
– Switch the power tool on.
– Slowly guide the tool arm downwards using the handle
(5).
– Now push the tool arm towards the fences (18) and (19)
and saw through the workpiece with uniform feed.
– Switch off the power tool and wait until the saw blade has
come to a complete stop.
– Slowly guide the tool arm upwards.
Sawing without slide movement (cutting off) (see figure
N)
– For cuts without slide movement (small workpieces),
loosen the locking screw (1) if it is tightened. Push the
tool arm all the way towards the fence (18) and retighten
the locking screw (1).
– Set the required mitre and/or bevel angle as necessary.
– Press the workpiece firmly against the fences (18) and
(19).
– Firmly clamp the workpiece as appropriate for its dimen-
sions.
– Switch the power tool on.
– Slowly guide the tool arm downwards using the handle
(5).
– Saw through the workpiece applying uniform feed.
– Switch off the power tool and wait until the saw blade has
come to a complete stop.
– Slowly guide the tool arm upwards.
1 609 92A 88P | (29.03.2023)
Practical advice
Marking the Cutting Line (see figure O)
A laser beam shows you 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.
– To activate this, turn on the laser beam using the
switch (36).
– Align your mark on the workpiece with the centre of the
laser line.
Note: Before sawing, check whether the cutting line is still
indicated correctly. The laser beam can be misaligned due to
vibrations from intensive use, for example.
Permissible workpiece dimensions
Maximum workpiece dimensions:
Mitre Bevel Height x width [mm]
angle angle
at max. height
0° 0° 90 x 90
0° 45° 60 x 93
45° (left/ 0° 90 x 63
right)
45° (left) 45° 55 x 70
45° (right) 45° 55 x 70
Minimum workpiece dimensions (= all workpieces that can
be secured left or right of the saw blade using the supplied
screw clamps (20)): 130 x 50 mm (length x width)
Maximum cutting depth (0°/0°): 90 mm
Sawing workpieces of the same length (see figure P)
The length gauge (26) can be used for easily sawing work-
pieces of the same length.
– Loosen the clamping screw (57) and move the length
gauge (26) in the guide rail (58) to the required work-
piece length.
– Retighten the clamping screw (57).
Longer workpieces:
– Loosen the wing bolt (59) and pull out the guide rail (58)
as far as it will go.
– Retighten the wing bolt (59).
– Adjust the length gauge (26) to the required workpiece
length.
Sawing without a length gauge:
– Loosen the clamping screw (57) and move the length
gauge (26) in the guide rail (58) all the way out.
– Rotate the length gauge by 90°until it is flush with the
fence (18).
– Retighten the clamping screw (57).
Adjusting the depth stop (sawing the groove) (see figure
Q)
The depth stop needs to be adjusted if you wish to saw a
groove.
– Swivel the depth stop (22) outwards.
at max. width
65 x 130
45 x 130
65 x 91
35 x 91
45 x 91
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