Preparing For Operation; Adjusting The Cutting Angle; Starting Operation; Working Advice - Bosch GCM 80 SJ Professional Notice Originale

OBJ_BUCH-2154-002.book Page 24 Monday, June 16, 2014 2:55 PM
24 | English
Securing the Machine (Transport Position)
– Loosen the locking screw 9 if tightened. Pull the tool arm
completely to the front and tighten the locking screw
again.
– To lock the saw table 20, tighten the locking knob 23.
– Press locking switch 15 and slowly guide the tool arm
downward by the handle 14.
– Guide the tool arm downward until the transport safety-
lock 28 can be pushed completely inward.

Preparing for Operation

Moving the Fence (see figure F)
You have to move the adjustable fence 4 to saw bevel angles.
– Loosen the locking screw 41 using the supplied hex key
34.
The two outer fixing screws must not be loosened!
– Pull the adjustable fence 4 completely outward.
– Retighten the locking screw 41.
After sawing the bevel angles, slide the adjustable fence 4
back again (loosen the locking screw 41; slide the fence 4
completely inward; retighten the locking screw).
Clamping the Workpiece (see figure G)
To ensure optimum working safety, the workpiece must al-
ways be firmly clamped.
Do not saw workpieces that are too small to clamp.
– Press the workpiece firmly against the fences 4 and 19.
– Insert the material clamp 5 provided into one of the holes
42 intended for it.
– Adapt the threaded rod 43 of the screw clamp to the work-
piece height.
– Firmly tighten the threaded rod 43, thus fastening the
workpiece.

Adjusting the Cutting Angle

To ensure precise cuts, the basic adjustment of the machine
must be checked and adjusted as necessary after intensive
use (see "Checking and Adjusting the Basic Adjustment",
page 25).
 Always tighten the locking knob 23 firmly before saw-
ing. Otherwise the saw blade can become wedged in the
workpiece.
Adjusting Mitre Angles (see figure H)
The mitre angle can be set in the range from 47° (left side) to
47° (right side).
– Loosen the locking knob 23 in case it is tightened.
– Pull the lever 24 and turn the saw table 20 until the desired
mitre angle is indicated on the angle indicator 22.
– Tighten the locking knob 23 again.
For quick and precise setting of often used mitre angles,
detents 26 are provided on the saw table:
Left
0°
45° 22.5° 15°
1 609 92A 0HN | (16.6.14)
– Loosen the locking knob 23 in case it is tightened.
– Pull lever 24 and rotate the saw table 20 left or right to the
– Release the lever again. The lever must be felt to engage in
Adjusting Bevel Angles (see figure I)
The bevel angle can be set in the range from 0° to 45°.
– Pull the adjustable fence 4 completely outward.
– Loosen the lock lever 8.
– Tilt the tool arm by the handle 14 until the angle indicator
– Hold the tool arm in this position and retighten the clamp-
For quick and precise setting of the standard angles 0°
and 45°, end stops are provided on the housing.
– Pull the adjustable fence 4 completely outward.
– Loosen the lock lever 8.
– To do so, swivel the tool arm by the handle 14 to the stop
– Retighten the lock lever 8 again.

Starting Operation

 Observe correct mains voltage! The voltage of the pow-
Switching On (see figure J)
To save energy, only switch the power tool on when using it.
– To start the machine, press the On/Off switch 13 and keep
Note: For safety reasons, the On/Off switch 13 cannot be
locked; it must remain pressed during the entire operation.
The tool arm can only be guided downward by pressing lock-
ing switch 15.
– For sawing, the locking switch 15 must be therefore
Switching Off
– To switch off the machine, release the On/Off switch 13.

Working Advice

General Sawing Instructions
 For all cuts, it must first be ensured that the saw blade
Protect the saw blade against impact and shock. Do not sub-
ject the saw blade to lateral pressure.
Do not saw warped/bent workpieces. The workpiece must al-
ways have a straight edge to face against the fence.
Long workpieces must be underlaid or supported at their free
Right
end.
15° 22.5° 45°
requested detent.
the detent.
30 indicates the desired bevel angle.
ing lever 8.
32 to the right (0°) or to the stop 6 to the left (45°).
er source must agree with the voltage specified on the
nameplate of the machine. Power tools marked with
230 V can also be operated with 220 V.
it pressed.
pushed in addition to pressing the On/Off switch 13.
at no time can come in contact with the fence, screw
clamps or other machine parts. Remove possibly
mounted auxiliary stops or adjust them accordingly.
Bosch Power Tools