Ratio AR1050NM, Instruction Manual

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it has cooled to normal operation temperature.
WORKING HINTS FOR
YOUR ANGLE GRINDER
1. Always start at no load to achieve maximum
speed then start working.
2. Do not force the disc to work faster, reducing
the Disc’s moving speed means longer working
time.
3. Always work with a 15-30 angle between disc
and workpiece. Larger angles will cut ridges into
the workpiece and affect the surface finish. Move
the angle grinder across and back and forth over
the workpiece.
4. When using a cutting disc never change the
cutting angle otherwise you will stall the disc
and angle grinder motor or break the disc. When
cutting, only cut in the opposite direction to the
disc rotation. If you cut in the same direction as
the disc rotation the disc may push itself out of
the cut slot.
5. When cutting very hard material best results
can be achieved with a diamond disc.
6. When using a diamond disc it will become
very hot. If this happens you will see a full ring of
sparks around the rotating disc. Stop cutting and
allow to cool at no load speed for 2-3 minutes.
7. Always ensure the workpiece is firmly held or
clamped to prevent movement.
MAINTENANCE
Remove the plug from the socket before
carrying out any adjustment, servicing or
maintenance.
There are no user serviceable parts in your
power tool. Never use water or chemical
cleaners to clean your power tool. Wipe clean
with a dry cloth. Always store your power tool
in a dry place. Keep the motor ventilation slots
clean. Keep all working controls free of dust.
Occasionally you may see sparks through the
ventilation slots. This is normal and will not
damage your power tool.
If the supply cord is damaged, it must be
replaced by the manufacturer, its service agent
or similarly qualified persons in order to avoid a
hazard.
TO REPLACE THE BRUSHES (See G)
Remove the screw securing the motor brush
cover. Remove the cover, gently lift out, and
pull the spade connector free. Hold back the
coil spring and slide the worn brush out of the
housing, carefully release the spring. Locate the
replacement brush, (in the same orientation)
whilst again holding back the coil spring. Ensure
the brush is located and free to move, release
the spring; it should now sit within the groove on
the brush. Re-attach the spade connector to the
terminal, replace the cover and secure.
G
TROUBLESHOOTING
Although your new angle grinder is really very
simple to operate, if you do experience problems,
please check the following:
1. If your grinder will not operate check the power
at the main plug.
2. If your grinder wheel wobbles or vibrates,
check that outer flange is tight, check that the
wheel is correctly located on the flange plate.
3. If there is any evidence that the wheel is
damaged do not use as the damaged wheel may
disintegrate, remove it and replace with a new
wheel. Dispose of old wheels sensibly.
4. If working on aluminum or a similar soft alloy,
the wheel will soon become clogged and will not
grind effectively.
ENVIRONMENTAL
PROTECTION
Waste electrical products must not be
disposed of with household waste. Please
recycle where facilities exist. Check with
your local authorities or retailer for recycling
advice.