KRESS WTS 900 E Instrucciones De Servicio página 8

English
8
1 Application
The angle grinder can be used universally for cutting
and treating metals and stone. For high speeds, only
use the cutting and grinding items approved for the
machine.
Safety Instructions and
2
Accident Prevention
Before operating the machine, please read through
the operating instructions completely, follow the
Safety Instructions in this manual as well as the gen-
eral Safety Instructions for Power Tools in the
accompanying booklet.
Important instructions, which should be read
before starting operation, and which we strongly
recommend observing:
If the mains cable is damaged while working, pull
the mains plug immediately.
Never work with a damaged mains cable.
Wear protective glasses, hearing protection, pro-
tective gloves and sturdy shoes.
The dust that is produced while working is detri-
mental to health. Use dust extraction and wear a
dust mask.
The machine must be used only for dry cutting/
grinding.
Do not work with materials containing asbestos.
Do not carry the machine by the cable.
Always hold the machine firmly in both hands and
take a firm stance.
Always conduct the cable away to the rear of the
machine.
Only insert the mains plug into the socket when
the machine is turned Off.
If the mains plug is pulled out, of if there is a power
cut, unlock the On/Off switch immediately and set
it to the Off position in order to prevent it from
starting to run again in an uncontrolled manner.
The auxiliary handle serves for your safety. Work
with the additional handle mounted.
Only do cutting and grinding work with the protec-
tive guard mounted!
The dust produced when treating stone with crys-
talline silicic acid is hazardous to health. Use a
dust extractor and wear a dust mask. The dust
extractor must be suitable for vacuuming stone.
For clamping the grinding discs, clamping flanges
may only be used that are the same size and
shaped to fit the contacting surface. Please
observe the instructions for using the clamping
flange in the operating manual. Intermediate
layers may not be used on conical or depressed-
centre grinding discs.
When clamping depressed-centre grinding tools
the diameter of the clamping flange must be at
least 5 mm smaller than the diameter of the flat
depressed-centre surface of the grinding tool;
here, the clamping flange must not press onto the
transitional radius of the clearance.
The location bore of the grinding tools may not be
drilled afterwards as there is risk of fracture.
Grinding tools may on no account be operated at
a speed higher than that stipulated by the grinding
tool manufacturer.
Only fibre-reinforced grinding discs or diamond
cutting discs may be used.
The grinding discs etc. intended for use must be
approved for a peripheral velocity of 80 m/s!
d · 3.14 · n = m/s
Formula:
6000
d = Diameter of the grinding disc in mm
n = No-load speed/min.
(see identification plate)
m/s = Peripheral velocity in metres per second
A new grinding tool and any grinding tool that is
re-mounted, must run on the machine intended for
use at no-load for 30 seconds. Operating person-
nel and any other persons must stand outside the
danger area during the test run.
The machine may only be brought into contact
with the work piece once it has been switched on.
Caution! Be careful of rotating grinding tools.
Pay attention to the direction of rotation: Always
hold the machine such that the grinding dust or
sparks fly away from the body. When grinding
metal, sparks can occur. Be careful if persons or
objects are standing nearby. Inflammable material
must not be kept in the vicinity.
Check the working area with a metal detector in
order to avoid damaging any concealed electrical
leads, or water and gas pipes.
Switch the machine off immediately if the cutting
disc should jam (jerky reaction force).
Do not use any cutting discs for rough grinding.
Grinding tools may not be brought to a standstill
by pressing against the periphery or grinding face
of the grinding tool.
Do not clamp the machine in a vice.
WTS 900 E