Troubleshooting; Maintenance - Rockwell RD4719 Quick Start Manual

2200w angle grinder
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2200W ANGLE GRINDER
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.
NOTE: Brushes should be replaced in pairs. If any
query, contact the Helpline.
WORKING HINTS FOR YOUR
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.

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.
EN
11

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