Metabo W 21-180 Gebrauchsanleitung Seite 13

Before using the angle grinder, install the side
handle (3) and always keep both hands on the
tool at all times during use.
During machining, of metals
in particular, conductive dust
can form deposits inside the
machine. This can lead to the
transfer of electrical energy onto the machine
housing. This can mean a temporary danger of
electric shocks. This is why it is necessary when
the machine is running to blow compressed air
through the rear ventilation slots of the machine
regularly, frequently and thoroughly. Here, the
machine must be held firmly.
It is recommended to use a stationary extraction
system and to place a ground fault circuit
interrupter (GFCI) downstream.
If the angle grinder is deactivated by the GFCI
circuit interrupter, the angle grinder must be
checked and cleaned. Cleaning the motor, see
Maintenance.
The dust generated during operation is often
injurious to health (e.g. when processing oak and
beech woods, stone or paintwork which may
contain lead or other harmful materials). This dust
must not be allowed to penetrate the body. Use
dust-extraction equipment as well as wearing a
suitable dust mask. Remove any accumulations of
dust thoroughly, using a suitable vacuum cleaner.
Dust can be explosive!
Materials which generate hazardous dusts or
vapours during processing (e.g. asbestos) should
not be used.
Ensure that sparks produced during work do not
constitute a risk to the user or other personnel and
are not able to ignite inflammable substances.
Endangered areas must be protected with flame-
resistant covers. Make sure that fire-risk areas are
always provided with suitable fire extinguishers.
Ensure that the accessories used always fulfil
the following minimum requirements.
Respect the maximum
grinding-disc diameter (please
see Technical Specifications).
The diameter of the central
hole in the grinding disc (5)
must fit the inner flange (8)
without any play. Do not use
5
any adapters or reducers.
8
The permitted speed n
must correspond at least to the
no-load speed for the power
tool (please see Technical
Specifications)
Use at least "max. 50 m/s".
max. 110 mm
Carry out a test run after every tool change,
ensuring that you are holding the angle grinder
firmly with both hands.
Hold the angle grinder away from your body.
Ensure that there is no-one present in the area
at risk. Run the angle grinder for approximately
30 seconds.
The angle grinder runs on for approx.
10 seconds after switch-off.
Observe the information and instructions provided
by the tool or accessory manufacturer.
Do not contaminate discs with grease or subject
them to impact.
Damaged, eccentric or vibrating tools should not
be used.
Never use cutting discs for grinding purposes.
Cutting discs must not be subjected to any lateral
pressure.
During cutting or grinding operation, always work
with the wheel guard (4) fitted.
Use tools in dry operating conditions only.
Do not attempt to touch the moving tool - risk of
injury.
Ensure that no damage is caused to gas or water
pipes, electrical cables and weight-bearing walls
(statics).
When using the power tool outdoors, an FI safety
switch with a maximum tripping current of 30 mA
must be connected on the incoming line side.
Angle grinder in continuous operation: To avoid
the possibility of unintentional start-up: always turn
off the switch when the plug is removed from the
socket or if an interruption to the power supply has
occurred.
Use elastic cushioning layers, if they are provided
with the coated abrasive and if they are called for.
If using thread hole discs, ensure that the thread
in the disc is long enough for the spindle.
Hold the work piece securely in place.
ENGLISH
max
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