Bosch GWS 10,8-76 V-EC Original Instructions Manual page 10

OBJ_BUCH-2539-001.book Page 10 Wednesday, August 12, 2015 8:28 AM
10 | English
max.
[mm] [mm]
D b
d
D 76 7
b
Selecting Grinding Discs
Grinding discs
Carbide Multi Wheel PVC, wood,
Expert for Metal
Best for Ceramic
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 car-
cinogenic, especially in connection with wood-treatment
additives (chromate, wood preservative). Materials con-
taining 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
materials to be worked.
 Prevent dust accumulation at the workplace. Dust can
easily ignite.
Operation
Starting Operation
Inserting the battery
Note: Use of batteries not suitable for the machine can lead to
malfunctions of or cause damage to the power tool.
Insert the charged battery 4 into the handle until it can be felt
to engage and faces flush against the handle.
Switching On and Off
To start the power tool, push the On/Off switch 3 forwards.
To lock the On/Off switch 3, press the On/Off switch 3 down
at the front until it latches.
To switch off the power tool, release the On/Off switch 3 or,
if it is locked, briefly push down the back of the On/Off switch
3 and then release it.
To save energy, only switch the power tool on when using it.
1 609 92A 196 | (12.8.15)
 Check grinding tools before using. The grinding tool
-1
d [min ] [m/s]
10 19.500 80
Temperature Control/Overload Protection Indicator
The red LED indicator 6 will help you in protecting the battery
against overheating and the motor against overloading.
When the LED indicator 6 continuously lights up red, the
Material
temperature of the battery is too high and the machine
switches off automatically.
composites,
– Switch the power tool off.
perspex
– Allow the battery to cool down before continuing to work.
Aluminium,
The LED indicator 6 flashes red, the power tool is blocked
copper
and switches off automatically.
– Remove the power tool from the workpiece.
Tile, concrete,
brick
Working Advice
 Exercise caution when cutting slots in structural walls;
 When cutting lightweight materials, take into account
 Clamp the workpiece if it does not remain stationary
 Do not strain the machine so heavily that it comes to a
 After heavily straining the power tool, continue to run
 Do not touch grinding and cutting discs before they
 Do not use the power tool with a cut-off stand.
When the power tool is electrostatically charged, the built-in
electronic control switches it off. To restart the power tool,
press the On/Off switch 3 again.
Rough Grinding
 Never use a cutting disc for roughing.
The best roughing results are achieved when setting the ma-
chine at an angle of 30° to 40°. Move the machine back and
forth with moderate pressure. In this manner, the workpiece
will not become too hot, does not discolour and no grooves
are formed.
Cutting Metal
 For cutting with bonded abrasives, always use the pro-
When cutting, work with moderate feed, adapted to the mate-
rial being cut. Do not exert pressure onto the cutting disc, tilt
or oscillate the machine.
Do not reduce the speed of running down cutting discs by ap-
plying sideward pressure.
must be mounted properly and be able to move freely.
Carry out a test run for at least one minute with no load.
Do not use damaged, out-of-centre or vibrating grind-
ing tools. Damaged grinding tools can burst and cause in-
juries.
The power tool will continue to work as soon as the block-
age is rectified.
see Section "Information on Structures".
the statutory provisions and recommendations of the
material manufacturer.
due to its own weight.
standstill.
it at no-load for several minutes to cool down the acces-
sory.
have cooled down. The discs can become very hot while
working.
tection guard for cutting 10.
Bosch Power Tools