Bosch HEAVY DUTY GWS 12V-76 Professional Notice Originale page 11

Approved abrasive tools
You can use all the abrasive tools mentioned in these operat-
ing instructions.
-1
The permissible speed [min ] or the circumferential speed
[m/s] of the abrasive tools used must at least match the val-
ues given in the table.
It is therefore important to observe the permissible rota-
tional/circumferential speed on the label of the abrasive
tool.
max. [mm]
D b
76 7
Selecting the Grinding/Cutting Disc
Abrasive tool
Carbide Multi
Wheel
Expert for Inox
Best for Ceramic
Best for Hard
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 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
u
easily ignite.
Operation
Start-up
Inserting the battery
Note: The use of batteries unsuitable for your power tool can
lead to malfunctions or damage to the power tool.
Bosch Power Tools
[mm]
-1
d [min ] [m/s]
10 19,500 80
Material
Wood (with nails),
plastic, PVC, com-
posite materials,
acrylic glass,
plaster, copper
Stainless steel,
steel
Tiles, ceramics
Tiles, hard porcel-
ain, fine stoneware
Insert the charged battery (4) into the handle of the power
tool until you feel it engage and it is flush with the handle.
Switching on/off
To start the power tool, push the on/off switch (3) forward.
To lock the on/off switch (3) in position, push the on/off
switch (3) forward and down until it clicks into place.
To switch off the power tool, release the on/off switch (3);
or, if the switch is locked, briefly push the on/off switch (3)
backward and down and then release it.
Always check abrasive tools before using them. The
u
abrasive tool must be fitted properly and be able to
move freely. Carry out a test run for at least one
minute with no load. Do not use abrasive tools that are
damaged, run untrue or vibrate during use. Damaged
abrasive tools can burst apart and cause injuries.
Temperature monitoring/overload protection indicator
The red LED indicator (6) helps you to protect the battery
against overheating and the motor against overload.
If the LED indicator (6) is lit up permanently in red, the
temperature of the battery is too high and the power tool
switches off automatically.
– Switch the power tool off.
– Allow the battery to cool down before you carry on work-
ing.
If the LED indicator (6) is flashing red, then the power tool
is blocked and will switch off automatically.
Pull the power tool out of the workpiece.
The power tool will continue to work as soon as the blockage
is rectified.
Practical advice
Exercise caution when cutting slots in structural walls;
u
see the "Information on structural design" section.
When cutting lightweight materials, take into account
u
the statutory provisions and recommendations of the
material manufacturer.
Clamp the workpiece if it is not secure under its own
u
weight.
Do not load the power tool so heavily that it comes to a
u
stop.
If the power tool has been subjected to a heavy load,
u
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.
u
Do not touch grinding and cutting discs until they have
u
cooled down. The discs can become very hot while work-
ing.
If the power tool becomes electrostatically charged, the
built-in electronics will switch the power tool off. Press the
on/off switch (3) again to restart the power tool.
Rough grinding
Never use cutting discs for rough grinding.
u
English | 11
1 609 92A 559 | (19.07.2019)