Bosch Professional GCM 18V-305 GDC Notice Originale page 24

24 | English
Only use saw blades that match the specifications given in
this operating manual and that have been tested and marked
in accordance with EN 847-1.
Only use saw blades that are recommended by the power
tool manufacturer and are suitable for use on the material
you want to saw. This will prevent the saw teeth overheating
when sawing.
Assembly with hex socket screw (see figures c1−c4)
Removing the Saw Blade
– Bring the power tool into the work position.
– Swivel the retracting blade guard (5) to the back and hold
it in this position.
– Turn the hex socket screw (54) with the hex key
(4 mm) (17) and at the same time push the spindle
lock (53) until it engages.
– Keep holding the spindle lock (53) and loosen the hex
socket screw (54) by turning it clockwise (left-hand
thread).
– Remove the clamping flange (55).
– Remove the saw blade (44).
– Slowly push the retracting blade guard back down.
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 (5) to the back and hold
it in this position.
– Place the new saw blade on the inner clamping
flange (56).
– Fit the clamping flange (55) and the hex socket
screw (54). Press the spindle lock (53) until it engages
and tighten the hex socket screw by turning it anticlock-
wise.
– Slowly push the retracting blade guard back down.
Assembly with SDS bolt (see figure d)
For bevel cuts when using the SDS bolt (23), before
u
sawing, first make sure that the SDS bolt cannot come
into contact with the surface of the workpiece at any
time by making a suitable adjustment to the depth
stop (28). This prevents damage to the SDS bolt and/or
the workpiece.
Removing the saw blade
– Bring the power tool into the work position.
– Swivel the retracting blade guard (5) to the back and hold
it in this position.
– Turn the SDS bolt (23) while pressing the spindle
lock (53) until it engages.
– Press and hold the spindle lock (53) and unscrew the
SDS bolt (23) by turning it clockwise (left-hand thread).
– Remove the clamping flange (55).
– Remove the saw blade (44).
1 609 92A 6TT | (19.07.2021)
– Slowly push the retracting blade guard back down.
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 (5) to the back and hold
it in this position.
– Place the new saw blade on the inner clamping
flange (56).
– Attach the clamping flange (55) and the SDS bolt (23).
Press the spindle lock (53) until it engages and tighten
the SDS bolt by turning it anticlockwise.
– Slowly push the retracting blade guard back down.
Operation
Remove the battery from the power tool before carry-
u
ing out work on the power tool (e.g. maintenance,
changing tool, etc.). The battery should also be re-
moved for transport and storage. There is risk of injury
from unintentionally pressing the on/off switch.
Transport Safety Lock (see figure A)
The transport safety lock (35) makes it easier to handle the
power tool when transporting it to various working locations.
Unlocking the Power Tool (Work Position)
– Press the glide arm (34) down slightly by the handle (1)
to release the transport safety lock (35).
– Pull the transport safety lock (35) all the way out.
– Slowly guide the glide arm (34) upwards.
Locking the Power Tool (Transport Position)
– Slide the glide arm (34) all the way back and secure it in
this position.
– Guide the glide arm downwards until you can press the
transport safety lock (35) all the way in.
Further information: (see "Transport (see figure Z)",
page 30)
Locking the Glide Arm
The glide mechanism of the glide arm (34) can be locked
with the clamping lever (25). The glide arm can be placed in
two positions:
– Glide arm pushed all the way back (for cross cuts)
– Glide arm pulled all the way forward (for a compact trans-
port position)
Unlocking the Glide Arm (see figure B1)
After unlocking the glide arm (34), the whole gliding mech-
anism is ready for operation.
– Press the clamping lever (25) all the way down.
– The clamping wedge of the clamping lever releases the
two articulated parts at the bottom of the glide arm.
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