Adjusting Bevel Angles; Switching Off - Bosch GCM 12 SDE Professional Manual Original

Note for adjusting mitre angles > 45°:
Before adjusting the mitre angle, pull the saw table
extension (29) and the adjustable fence (2) all the way out.
Setting Standard Mitre Angles (see figure I1)
For quick and precise setting of commonly used mitre
angles, detents (27) are provided on the saw table:
Leftward
0°
45°; 31.6°; 22.5°; 15°
– Loosen the locking knob (23) if it is tightened.
– Pull the lever (24) and rotate the saw table (20) left or
right to the required detent.
– Release the lever again. The lever must be felt to engage
in the detent.
– Retighten the locking knob (23).
Setting Any Mitre Angle (see figure I2)
The mitre angle can be set between 52° (left side) and 60°
(right side).
– Loosen the locking knob (23) if it is tightened.
– Pull the lever (24) and at the same time press the locking
clamp (22) until this clicks into the slot provided for it.
This means the saw table can now move freely.
– Turn the saw table (20) left or right by the locking knob
until the angle indicator (26) shows the required mitre
angle.
– Retighten the locking knob (23).
– To loosen the lever (24) again (for setting standard mitre
angles), pull the lever upwards.
The locking clamp (22) springs back into its original posi-
tion and the lever (24) can click back into the detents
(27).

Adjusting bevel angles

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.
The bevel angle can be set between 47° (left side) and 47°
(right side).
For quick and precise setting of frequently used bevel
angles, stops have been provided for the angles 0°, 47°, 45°,
33.9° and 22.5°.
For bevel cuts when using the SDS bolt (32), 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 (42). This prevents damage to the SDS bolt and/or
the workpiece.
Setting the left bevel angle range (see figure J1)
– Pull the left-hand adjustable fence (2) all the way out.
– Loosen the clamping lever (8).
Bosch Power Tools
– Use the handle (13) to swivel the tool arm to the left until
– Re-tighten the clamping lever (8).
Setting the Complete Bevel Angle Range (see figure J2)
The bevel angle can be set between 47° (left side) and 47°
(right side).
Rightward – Pull the stop (45) all the way forward.
15°; 22.5°; 31.6°; 45°; 60°
– Pull the right-hand adjustable fence (2) all the way out or
– Loosen the clamping lever (8).
– Swivel the tool arm left or right by the handle (13) until
– Retighten the clamping lever (8).
Setting standard bevel angles (see figure J3)
– Loosen the clamping lever (8).
– Standard 0° bevel angles:
– Re-tighten the clamping lever (8).
Start-up
u
u
Switching on (see figure K)
– To switch on the power tool, first slide the lock-off
Note: For safety reasons, the on/off switch (33) cannot be
locked; it must remain pressed during the entire operation.

Switching off

– To switch off, release the on/off switch (33).
Starting Current Limitation (not available for all country-
specific versions)
The electronic starting current limitation restricts the power
consumption when the power tool is switched on and en-
ables operation with a 16 A fuse.
Note: If the power tool runs at full speed immediately after
being switched on, this means that the starting current limit-
the angle indicator (44) shows the required bevel angle.
This enables you to use the complete bevel angle range
(left and right).
remove it completely .
If you want to use the entire bevel angle range, you also
have to pull the left-hand adjustable fence (2) all the way
out or remove it completely.
the angle indicator (44)/(5) shows the required bevel
angle.
Swing the tool arm by the handle (13) slightly to the left
and push the stop (45) all the way back.
Standard 47°, 45°, 33.9° and 22.5° bevel angles:
Turn the stop until the required standard bevel angle en-
gages at the arrow mark.
Products that are only sold in AUS and NZ: Use a resid-
ual current device (RCD) with a nominal residual current
of 30 mA or less.
Pay attention to the mains voltage. The voltage of the
power source must match the voltage specified on the
rating plate of the power tool. Power tools marked
with 230 V can also be operated with 220 V.
button (14) to the middle and then press and hold the
on/off switch (33).
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