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16 | English
does not correspond to the tool holder of the power tool
(see "Technical data") cannot be held properly and will
damage the collet chuck.
The application tool must be clamped at least 10 mm.
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The inner shank dimension L
0
maximum permitted speed of the application tool from
the specifications provided by the manufacturer of the
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.
Switching On and Off
GGS 8 CE/GGS 28 C/GGS 28 CE/GGS 28 LC/GGS 28 LCE
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.
Switching On and Off
GGS 28 LP
To start the power tool, first slide the lock-off button (12)
to the rear, then press and hold the on/off switch (11).
To switch off the power tool, release the on/off switch (11).
1 609 92A 6N7 | (06.08.2021)
can be used to calculate the
Kickback Stop
GGS 8 CE/GGS 28 C/GGS 28 CE/GGS 28 LC/GGS 28 LCE
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 posi-
tion and then switch the power tool on again.
Constant Electronic control
The Constant Electronic keeps the speed at no load and un-
der load virtually consistent, guaranteeing uniform perform-
ance.
Speed preselection
GGS 8 CE/GGS 28 CE/GGS 28 LCE
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 pos-
No-load speed
−1
ition
(min
)
GGS 28 CE
GGS 28 LCE
1
10000
2
12700
3
16700
4
19700
5
23500
6
30000
Practical advice
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.
Protect the grinding tools against impact.
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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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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
machining metals, conductive dust can settle inside the
power tool, which can affect its protective insulation.
Store and handle the accessories carefully.
No-load speed
−1
(min
)
GGS 8 CE
2500
3600
4600
5700
6800
8000
Bosch Power Tools
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