Bosch Professional GWS 30-180 B Original Instructions Manual page 23

Note: If the power tool starts up immediately after an inter-
ruption in the power supply, the restart protection feature
has failed.The power tool must be sent to the after-sales ser-
vice immediately; see the "After-Sales Service and Applica-
tion Service" section for addresses.
Soft start
The electronic soft start limits the torque when the power
tool is switched on and enables a smooth start-up.
Note: If the power tool runs at full speed immediately after
being switched on, this means that the soft start and restart
protection mechanisms have failed. The power tool must be
sent to the after-sales service immediately; see the "After-
Status indicator (LED)
The following tables describes the LED status indicators (2) on the power tool.
Status indicator (LED) (2) Meaning/cause
Green Status OK
Flashing red Power tool has overheated and will switch off. Leave the power tool to cool down. If the
Illuminated red Kickback shutdown,restart protection or over-
load protection has been triggered, the power
tool will switch off.
Working Advice
Pull the plug out of the socket before carrying out any
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work on the power tool.
Exercise caution when cutting slots in structural walls;
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see the "Information on structural design" section.
Clamp the workpiece if it is not secure under its own
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weight.
Do not load the power tool so heavily that it comes to a
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stop.
If the power tool has been subjected to a heavy load,
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continue to run it at no-load for several minutes to
cool down the accessory.
Do not use the power tool with a cut-off stand.
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Do not touch grinding and cutting discs until they have
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cooled down. The discs can become very hot while work-
ing.
Note: Remove the plug from the socket when not using the
tool. When the power tool is plugged in, mains voltage is
present and the tool consumes a small amount of electricity,
even if switched off.
Rough grinding
Never use cutting discs for rough grinding.
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The best rough grinding results are achieved with a set angle
of 30° to 40°. Move the power tool back and forth with mod-
erate pressure. This will ensure that the workpiece does not
become too hot or discolour and that grooves are not
formed.
Bosch Power Tools
Sales Service and Application Service" section for ad-
dresses.
Electronic Brake System
The power tool is fitted with an electronic
brake system. When the power supply is
switched off, the abrasive tool is brought to a
complete stop within a few seconds. This
means that the run-out time is shorter than for
angle grinders without an electronic brake system and en-
ables the power tool to be set down sooner.
Note: If the braking effect deteriorates noticeably, the elec-
tronic brake system has failed. The power tool must be sent
to the after-sales service immediately; see the "After-Sales
Service and Application Service" section for addresses.
Solution
–
status indicator (LED) lights up green, the
power tool can be switched on again.
Turn the power tool off and on again.
Flap Disc
With the flap disc (accessory), curved surfaces and profiles
can be worked. Flap discs have a considerably higher ser-
vice life, lower noise levels and lower sanding temperatures
than conventional sanding sheets.
Cutting Metal
Always use the protective guard for cutting (16) when
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cutting with bonded abrasives.
When carrying out abrasive cutting, use a moderate feed
that is suited to the material being machined. Do not exert
pressure on the cutting disc and do not tilt or swing the
power tool.
Do not attempt to reduce the speed of a cutting disc coming
to a stop by applying pressure from the side.
Cutting stone
Provide sufficient dust extraction when cutting stone.
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Wear a dust mask.
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English | 23
The power tool must always
work in an up-grinding mo-
tion. Otherwise, there is a
risk that it will be pushed
uncontrolled out of the cut.
For best results when cut-
ting profiles and rectangular
tubing, start at the smallest
cross section.
1 609 92A 6EP | (10.05.2022)