Scheppach 4903303901 Originalbetriebsanleitung Seite 20

GB
• Be sure to use only grinding wheels and brush-
es which are marked with a speed at least as
high as the speed indicated on the rating plate
of the electric tool.
• Check that grinding wheels are fitted in accord-
ance with the manufacturer's instructions.
• Make sure that intermediate layers are used if
they are supplied with and required for the grind-
ing wheel.
• Make sure that the grinding disk is correctly fit-
ted and secured before you start to use the tool.
Allow the machine to run without load and in a
safe position for 5 minutes. Stop the machine
immediately if severe vibrations arise or any
other defects are noticed. If this should be the
case, examine the machine to find the cause.
• The electric tool must never be used without the
guard hood supplied with it.
•
Never use separate reducer sleeves or adapters
to make grinding wheels with larger holes fit on
the machine.
• Take precautions to ensure that flying sparks
do not cause any danger, e.g. that they do not
hit anyone or cause inflammable substances to
ignite.
•
Always wear safety goggles and ear-muffs; use
other personal safety equipment such as gloves,
an apron and a helmet if necessary.
m The workpiece becomes hot during grinding.
Important! Risk of burns!
Let the workpiece cool down. The material may
become glowing hot during the grinding. On longer
jobs, allow the workpiece to cool down occasionally.
• Do not use coolant or the like.
Special safety information
1 Before you use the grinder, carry out a ring test
on the grinding wheels (perfect grinding wheels
emit a clear tone when hit lightly with e.g. a
plastic hammer). This also applies when you fit
new grinding wheels (damage in transit). It is
essential to subject the machine to an unloaded
test run of at least 5 minutes. Leave the danger
zone while the test is in progress.
2 Use only grinding wheels which are marked with
details of the manufacturer, the type of bonding
agent used, dimensions and the permissible
RPM.
3 Grinding wheels must be stored in a dry place,
ideally at a constant temperature.
4 Use only the clamping flanges supplied with the
equipment to mount the grinding wheels.
5 Use only clamping flanges of identical size and
identical shape to mount the grinding wheels.
The intermediate layers between the clamp-
ing flange and the grinding wheel must be
comprised of elastic materials, e.g. rubber, soft
cardboard, etc.
6 Never enlarge a grinding wheels' mounting hole
by subsequent drilling.
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7 The workpiece supports and the top adjustable
safety guards must always be moved as close
as possible to the grinding wheel (max. 2 mm
clearance).
8 Grinding wheels are not allowed to be used
without the safety device. The following clear-
ances must not be exceeded:
- Workpiece support/grinding wheel: max. 2 mm
- Safety guard/grinding wheel: max. 2 mm
9 The guard holder, workpiece support and trans-
parent guard must be fitted before the double
grinder is used.
10 The power plug must be pulled out before
changing the grinding wheel.
11 The max. circumferential speed of the dry grind-
ing wheel is: 23 m/s m/s = (d x 3.14 x n) / (60 x
1000)
d = diameter of the grinding wheel in mm
n = motor revolutions per minute
12 Max. permitted motor housing temperature:
80°C
13 Before starting work, firmly screw the grinder to
the workbench by using the 2 mounting points
on the base plate.
14 Adjust the spark deflector periodically in order to
compensate the wear of the wheel. Please note
that the distance between the spark deflector
and the wheel is to be kept as small as possible
and should in no case exceed 2 mm.
15 The grinding wheel must be replaced at the
latest when the spark deflector and the work-
piece support can no longer be set a maximum
distance of 2 mm from the grinding wheel.
16 Process only work pieces, which can be held
in position safely. Processing very small work
pieces will increase the risk injuries. Longer
work pieces must be supported by using a roller
stand (optional equipment) or the like.
Residual risks
Even if you use this electric power tool in ac-
cordance with instructions, certain residual
risks cannot be ruled out. The following hazards
may arise in connection with the equipment's
construction and layout:
• Lung damage if no suitable protective dust mask
is used.
• Damage to hearing if no suitable ear protection
is used.
• Health damage caused by hand-arm vibrations
if the equipment is used over a prolonged period
or is not properly guided and maintained.
Keep this safety information in a safe place.