Safety Rules For Rotary Tools - Dremel Lite 7760 Operating/Safety Instructions Manual

1600A01A91.qxp_7760 3/4/19 1:54 PM Page 4
▶ Safety warnings common for
grinding, sanding, wire
brushing, polishing, carving
or abrasive cutting-off
operations:
This power tool is intended to function as
a grinder, sander, wire brush, polisher,
carving or cut-off tool. Read all safety
warnings, instructions, illustrations and
specifications provided with this power
tool. Failure to follow all instructions listed
below may result in electric shock, fire
and/or serious injury.
Do not use accessories which are not
specifically designed and recommended by
the tool manufacturer. Just because the
accessory can be attached to your power
tool, it does not assure safe operation.
The RATED SPEED of the accessories must
be at least equal to the operating speed
setting marked on the power tool.
Accessories running faster than their RATED
SPEED can break and fly apart.
The outside diameter and the thickness of
your accessory must be within the
capacity rating of your power tool.
Incorrectly sized accessories cannot be
adequately controlled.
The arbor size of wheels, sanding drums or
any other accessory must properly fit the
spindle or collet of the power tool.
Accessories that do not match the mounting
hardware of the power tool will run out of
balance, vibrate excessively and may cause
loss of control.
Mandrel mounted wheels, sanding drums,
cutters or other accessories must be fully
inserted into the collet or chuck. If the
mandrel is insufficiently held and/or the
overhang of the wheel is too long, the
mounted wheel may become loose and be
ejected at high velocity.
Do not use a damaged accessory. Before
each use inspect the accessory such as
abrasive wheels for chips and cracks,
sanding drum for cracks, tear or excess
wear, wire brush for loose or cracked
wires. If power tool or accessory is
dropped, inspect for damage or install an
undamaged accessory. After inspecting
and installing an accessory, position
yourself and bystanders away from the
plane of the rotating accessory and run the
power tool at maximum no-load speed for
one minute. Damaged accessories will

Safety Rules for Rotary Tools

normally break apart during this test time.
Wear personal protective equipment.
Depending on application, use face shield,
safety goggles or safety glasses. As
appropriate, wear dust mask, hearing
protectors, gloves and workshop apron
capable of stopping small abrasive or
workpiece fragments. The eye protection
must be capable of stopping flying debris
generated by various operations. The dust
mask or respirator must be capable of
filtrating particles generated by your
operation. Prolonged exposure to high
intensity noise may cause hearing loss.
Keep bystanders a safe distance away
from work area. Anyone entering the work
area must wear personal protective
equipment. Fragments of workpiece or of a
broken accessory may fly away and cause
injury beyond immediate area of operation.
Hold power tool by insulated gripping
surfaces only, when performing an
operation where the cutting accessory may
contact hidden wiring. Cutting accessory
contacting a "live" wire may make exposed
metal parts of the power tool "live" and
could give the operator an electric shock.
Always hold the tool firmly in your hand(s)
during the start-up. The reaction torque of
the motor, as it accelerates to full speed,
can cause the tool to twist.
Use clamps to support workpiece
whenever practical. Never hold a small
workpiece in one hand and the tool in the
other hand while in use. Clamping a small
workpiece allows you to use your hand(s) to
control the tool. Round material such as
dowel rods, pipes or tubing have a tendency
to roll while being cut, and may cause the
bit to bind or jump toward you.
Position the cord clear of the spinning
accessory. If you lose control, the cord may
be cut or snagged and your hand or arm
may be pulled into the spinning accessory.
Never lay the power tool down until the
accessory has come to a complete stop.
The spinning accessory may grab the
surface and pull the power tool out of your
control.
After changing the bits or making any
adjustments, make sure the collet nut,
chuck or any other adjustment devices are
securely tightened. Loose adjustment
devices can unexpectedly shift, causing loss
of control, loose rotating components will
be violently thrown.
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