Transport Safety Lock (See Figure C); Work Preparation; Working Advice - Bosch GCD 12 JL Professional Manual Original

– Then pull the retracting blade guard (4) and the cover
plate (21) backwards from the fastening screw (27) until
the retracting blade guard is held in the bracket (22) by
the guide bolt (28).
– Turn the hex socket screw (29) using the hex key (12)
provided while pressing the spindle lock (3) until it en-
gages.
– Press and hold the spindle lock (3) and undo the
screw (29) by turning it anticlockwise.
– Remove the clamping flange (30).
– Remove the saw blade (31).
Fitting the saw blade
If required, clean all the parts you want to fit before installing
them.
– Place the new saw blade onto the inner clamping flange
(32).
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 cover.
– Put on the clamping flange (30) and the screw (29).
Press the spindle lock (3) until it engages and tighten the
screw by turning it clockwise.
– Loosen the spindle lock (3) again. If necessary, pull the
knob upwards manually as far as it will go.
– Press the locking lever (1) and push the retracting blade
guard (4) and the cover plate (21) back downwards be-
low the fastening screw (27).
– Slowly guide the retracting blade guard (4) downwards
until the saw blade is completely covered again.
– Retighten the fastening screws (27) and (26).
Operation
Pull the plug out of the socket before carrying out any
u
work on the power tool.

Transport safety lock (see figure C)

The transport safety lock (14) 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 (16) to re-
lease the transport safety lock (14).
– Pull the transport safety lock (14) all the way out.
– Slowly guide the tool arm upwards.
Note: Make sure that the transport safety lock is not pushed
in when working, otherwise the tool arm will not be able to
be swivelled to the required depth.
Locking the power tool (transport position)
– Guide the tool arm downwards until you can press the
transport safety lock (14) all the way in.
Further information about transporting (see "Transport",
page 27).
Bosch Power Tools

Work preparation

Extending the saw table (see figure D)
The free end of long and heavy workpieces must have some-
thing placed underneath it or be supported.
The left side of the saw table can be extended using the saw
table extension (11).
– Push the clamping lever (10) downwards.
– Pull out the saw table extension (11) to the required
length.
– To lock the saw table extension, pull the clamping lever
(10) back up.
Setting the mitre angle (see figure E)
The mitre angle can be set between 0° and 45°.
Important settings are marked with corresponding markings
on the angle guide (6). The 0° and 45° positions are secured
by the respective end stop.
– Loosen the clamping handle (13) of the angle guide (6).
– Turn the angle guide (6) until the angle indicator (33) in-
dicates the desired mitre angle on the scale (34).
– Retighten the clamping handle (13).
Marking the Cutting Line (see figure F)
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 (19).
– Align your mark on the workpiece with the right-hand
edge of the laser line.
Note: Before sawing, check whether the cutting line is still
indicated correctly. The laser beam can be misplaced due to
vibrations from intensive use, for example.
Clamping the workpiece (see figure G)
To ensure maximum safety while working, the workpiece
must always be firmly clamped. Do not saw workpieces that
are too small to clamp firmly.
The free end of long and heavy workpieces must have some-
thing placed underneath it or be supported.
The free end of long and heavy workpieces must have some-
thing placed underneath it or be supported.
– Place the workpiece against the angle guide (6).
– Slide the locking spindle (7) against the workpiece and
clamp the workpiece in place using the spindle handle
(9).
Releasing the workpiece
– Release the spindle handle (9).
– Open the quick release (8) and pull the locking spindle
(7) away from the workpiece.

Working advice

General sawing instructions
Protect the saw blade against impact and shock. Do not sub-
ject the saw blade to lateral pressure.
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1 609 92A 5UE | (05.10.2020)