Bosch Professional GGS 30 LS Original Instructions Manual page 8

8 | English
application tool. It must not be less than the maximum
speed of the power tool.
Dust/Chip Extraction
Dust from materials such as lead-containing coatings, some
wood types, minerals and metal can be harmful to one's
health. Touching or breathing-in the dust can cause allergic
reactions and/or lead to respiratory infections of the user or
bystanders.
Certain dust, such as oak or beech dust, is considered carci-
nogenic, especially in connection with wood-treatment ad-
ditives (chromate, wood preservative). Materials containing
asbestos may only be worked by specialists.
– Provide for good ventilation of the working place.
– It is recommended to wear a P2 filter-class respirator.
Observe the relevant regulations in your country for the ma-
terials to be worked.
Avoid dust accumulation at the workplace. Dust can
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easily ignite.
Operation
Starting operation
Products that are only sold in AUS and NZ: Use a resid-
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ual current device (RCD) with a nominal residual current
of 30 mA or less.
Pay attention to the mains voltage! The voltage of the
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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.
Check whether there is visible damage to the
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collet (1) and clamping nut (2) before each use.
Switching On and Off
To start the power tool, slide the on/off switch (5) forwards.
To lock the on/off switch (5) in position, push the on/off
switch (5) forwards and down until it clicks into place.
To switch off the power tool, release the on/off switch (5);
or, if the switch is locked, briefly push the on/off switch (5)
backwards and down and then release it.
Constant Electronic control
The Constant Electronic keeps the speed at no load and un-
der load virtually consistent, guaranteeing uniform perform-
ance.
Speed preselection
You can preselect the required speed using the speed
preselection thumbwheel (6), even during operation.
The required speed depends on the material being worked
and the diameter of the application tool. Observe the max-
imal allowable speed of the application tool.
Thumbwheel position No-load speed (min
1 7000
2 9500
3 15000
1 609 92A 828 | (12.05.2023)
Thumbwheel position
4
5
6
Kickback Stop
If there is a sudden kickback in the power tool,
e.g. jamming when carving, the power supply
to the motor will be interrupted electronically.
To restart the tool, set the on/off switch (5) to
the off position and then switch the power tool on again.
Restart Protection
The restart protection feature prevents the power tool from
uncontrolled starting after the power supply to it has been
interrupted.
To restart the tool, set the on/off switch (5) to the off posi-
tion and then switch the power tool on again.
Note: Rapidly switching the power tool off and on again may
trigger the restart protection, meaning the power tool may
not start up even if the on/off switch (5) is pressed. Set the
on/off switch (5) to the off position and then switch the
power tool on again.
Soft start
The electronic soft start limits the torque when the power
tool is switched on and increases the service life of the mo-
tor.
Practical advice
Pull the plug out of the socket before carrying out any
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work on the power tool.
Protect the grinding tools against impact.
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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.
Grinding tools can become very hot while working. Do
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not touch them until they have cooled down.
Move the grinding tool evenly back and forth with light pres-
sure to achieve an optimum work result. Pressure that is too
strong reduces the performance capability of the power tool
and causes the grinding tool to wear more quickly.
Maintenance and Service
Maintenance and Cleaning
Pull the plug out of the socket before carrying out any
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work on the power tool.
To ensure safe and efficient operation, always keep
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-1
the power tool and the ventilation slots clean.
)
In extreme conditions, always use a dust extractor if
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possible. Blow out ventilation slots frequently and in-
stall a residual current device (RCD) upstream. When
-1
No-load speed (min )
19000
25000
33000
Bosch Power Tools