Bosch GCO 2000 Professional - Manual (Page 19)

English | 19
Bosch Power Tools 1 609 92A 0CZ | (3.7.13)
Position of the Operator (see figure F)
 Do not stand in a line with the cutting disc in front of the
machine. Always stand aside of the cutting disc. This
measure provides for better protection of your body
against possible splinters in case of cutting disc breakage.
Switching On and Off (see figure G)
To save energy, only switch the power tool on when using it.
– To start the machine, firstly press the lock-off button 1.
Then press the On/Off switch 2 and keep it pressed.
Note: For safety reasons, the On/Off switch 2 cannot be
locked; it must remain pressed during the entire operation.
– To switch off the machine, release the On/Off switch 2.
Soft starting
The electronic soft starting feature limits the torque upon
switching on and increases the working life of the motor.
Working Advice
General Cutting Instructions
 Do not touch the cutting disc after working before it has
cooled. The cutting disc becomes very hot while working.
 Make sure that the spark guard 20 is properly mount-
ed. Sparking occurs when cutting metal.
Protect the cutting disc against impact, shock and grease. Do
not subject the cutting disc to lateral pressure.
Do not strain the power tool so heavily that it comes to a
standstill.
Excessive feed considerably reduces the performance capa-
bility of the machine and shortens the service life of the cut-
ting disc.
Use only cutting discs that are suitable for the material to be
worked.
Permissible Workpiece Dimensions
Maximal workpiece sizes:
Minimal workpiece sizes
(= all workpieces that can be clamped via the clamping spin-
dle 8):
Length 80 mm
Cutting depth, max. (0°/0°): 125 mm
Cutting Metal
– Set the desired mitre angle.
– Firmly clamp the workpiece as appropriate for its dimen-
sions.
– Switch on the machine.
– Slowly guide the tool arm downward with the handle 3.
– Cut the workpiece applying uniform feed.
– Switch the machine off and wait until the cutting disc
comes to a complete stop.
– Guide the tool arm slowly upward.
Adjusting the Depth Stop (see figure H)
In the delivery condition of the machine, the depth stop 16 is
adjusted in such a manner that a new 355 mm cutting disc
does not touch the base plate when cutting.
To compensate the wear of the cutting disc, the depth stop
can be set deeper.
When using a new cutting disc, the depth stop must then al-
ways be set back to the original position.
 Always adjust the depth stop in such a manner that the
cutting disc does not touch the base plate when cutting.
– Bring the power tool into the working position. (see “Re-
leasing the Machine (Working Position)”, page 18)
– Loosen lock nut 25 with the supplied ring spanner 14
(13 mm).
– Swing the tool arm with the handle 3 to the requested po-
sition.
– Screw the depth stop 16 in clockwise or anticlockwise di-
rection until the screw head touches the housing.
– Slowly guide the tool arm upward and tighten the lock nut
25.
Transport
– Always carry the power tool by its transport handle 18.
 The power tool should always be carried by two per-
sons in order to avoid back injuries.
 When transporting the power tool, use only the trans-
port devices and never use the protective devices.
Maintenance and Service
Maintenance and Cleaning
 Before any work on the machine itself, pull the mains
plug.
 Clean the ventilation slots of your power tool regularly
with a soft brush. The motor fan draws dust into the hous-
ing, and a large accumulation of metal dust can lead to
electrical hazards.
 In extreme conditions, always use dust extraction as
far as possible. Blow out ventilation slots frequently
and install a residual current device (RCD). When work-
ing metals, conductive dust can settle in the interior of the
Mitre/Bevel Angle
Workpiece Form 0° 45°
125 Ш 100 Ш
110 x 110 82 x 82
180 x 85 90 x 75
130 x 130 75 x 75
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