Fitting The Abrasive Tools (See Figure A); Dust/Chip Extraction; Starting Operation - Bosch GGS 8 CE Professional Manual Original

16 | English
The vibration level given in these instructions has been
measured in accordance with a standardised measuring pro-
cedure and may be used to compare power tools. It can also
be used for a preliminary estimation of exposure to vibra-
tion.
The stated vibration level applies to the main applications of
the power tool. However, if the power tool is used for differ-
ent applications, with different application tools or poorly
maintained, the vibration level may differ. This can signific-
antly increase the exposure to vibration over the total work-
ing period.
To estimate the exposure to vibration accurately, the times
when the tool is switched off or when it is running but not ac-
tually being used should also be taken into account. This can
significantly reduce the exposure to vibration over the total
working period.
Implement additional safety measures to protect the oper-
ator from the effects of vibration, such as servicing the
power tool and application tools, keeping the hands warm,
and organising workflows correctly.
Fitting
Pull the plug out of the socket before carrying out any
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work on the power tool.

Fitting the Abrasive Tools (see figure A)

Only use open-ended spanners that are suitable and
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undamaged (see "Technical Data").
– Clean the grinding spindle (3) and all the parts to be fit-
ted.
– Use an open-ended spanner (8) on the spanner flat of the
grinder spindle (3) to hold it in place.
Loosen the clamping nut (2) by placing an open-ended
spanner (9) on the spanner flat and turning it counter-
clockwise.
– Insert the straight shank of the grinding tool all the way
into the collet (1).
– Hold the grinding spindle (3) with the open-ended span-
ner (8) and tighten the application tool by placing the
open-ended spanner (9) on the spanner flat and turning it
clockwise.
The grinding tools must run completely concentrically. Do
not continue to use damaged grinding tools that are out of
balance. If the grinding tools are out of balance, they should
be replaced.
Do not, under any circumstances, tighten the collet
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with the clamping nut until a grinding tool has been
fitted. The collet may otherwise become damaged.
Only use mounted points with an appropriate shank
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diameter. A mounting point with a shank diameter which
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
1 609 92A 5T3 | (09.06.2020)
can be used to calculate the
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 (5).
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.
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