Preparing For Operation - Bosch GCM 254 D Professional Originalbetriebsanleitung

36 | English
Fitting the saw blade
When fitting the saw blade, make sure that the cutting
u
direction of the teeth (arrow direction on the saw
blade) matches the direction of the arrow on the pro-
tective guard.
If required, clean all the parts you want to fit before installing
them.
– Swivel the retracting blade guard (8) to the back and hold
it in this position.
– Place the new saw blade on the inner clamping
flange (50).
– Fit the clamping flange (48) and the hex socket
screw (47). Press the spindle lock (33) until it engages
and tighten the hex socket screw by turning it anticlock-
wise.
– Slowly push the retracting blade guard back down.
Operation
Pull the plug out of the socket before carrying out any
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work on the power tool.
Transport Safety Lock (see figure E)
The transport safety lock (25) makes it easier to handle the
power tool when transporting it to various working locations.
Unlocking the power tool (work position)
– Press the tool arm down slightly by the handle (5) to re-
lease the transport safety lock (25).
– Pull the transport safety lock (25) all the way out.
– Slowly guide the tool arm upwards.
Locking the power tool (transport position)
– Loosen the locking screw (1) if it is clamping the slide
device (2) in place. Pull the tool arm fully forward and
tighten the locking screw again to lock the slide device.
– Screw the adjusting screw (23) all the way upwards.
– To lock the saw table (29) in place, tighten the locking
knob (12).
– Swing the tool arm downwards by the handle (5) until you
can press the transport safety lock (25) completely in-
wards.
The tool arm is now securely locked and ready for transport-
ation.

Preparing for operation

To ensure precise cuts, the basic settings of the power tool
must be checked and adjusted as necessary after intensive
use.
Experience and suitable special tools are required for this.
A Bosch after-sales service point will handle this work
quickly and reliably.
Extending/Expanding the Saw Table (see figures F−G)
The free end of long and heavy workpieces must have some-
thing placed underneath it or be supported.
1 609 92A 88N | (29.03.2023)
The saw table can be extended left and right using the saw
table extensions (16).
– Loosen the clamping screw (42).
– Pull out the saw table extension (16) to the required
length.
– Retighten the clamping screw (42) to fix the saw table ex-
tension.
The flexible connector system of the workpiece
supports (17) enables a multitude of extension or expansion
variants.
– Insert the workpiece support (17) into the openings (44)
on the power tool or into the openings (45) of the second
workpiece support as required.
Never carry the power tool using the workpiece sup-
u
ports.
Only use the transport devices to transport the power
tool.
Removing the Fence (see figure H)
You have to remove the left/right adjustable fence (19) to
saw bevel angles.
– Loosen the wing bolts (38).
– Remove the adjustable fence (19).
After sawing the bevel angles, reinsert the adjustable
fence (19) and tighten the wing bolts (38).
Clamping the workpiece (see figures I1–I3)
To ensure maximum safety while working, the workpiece
must always be firmly clamped.
Do not saw workpieces that are too small to clamp firmly.
Vertical Clamping
– Press the workpiece firmly against the (18) and (19)
fences.
– Insert the supplied screw clamp (20) into one of the cor-
responding holes (39).
– Loosen the wing bolt (51) and adjust the screw clamp to
the workpiece. Tighten the wing bolt again.
– Tighten the threaded rod (52) to fix the workpiece in
place.
Horizontal clamping
– Unscrew the wing bolt (53) and pull apart the screw
clamp.
– Insert the screw clamp (20) that has now been taken
apart with the pin (54) into one of the corresponding
holes (28).
– Press the workpiece firmly onto the saw table (29).
– Tighten the threaded rod (52) to fix the workpiece in
place.
Releasing the workpiece
– To loosen the screw clamp, turn the threaded rod (52)
anticlockwise.
Adjusting mitre angles
– Bring the power tool into the work position.
Bosch Power Tools