Safety Instructions For All Operations - Dremel 300 Series Original Instructions Manual

SAFETY INSTRUCTIONS FOR
ALL OPERATIONS
SAFETY WARNINGS THAT ARE COMMON
FOR GRINDING, SANDING, WIRE
BRUSHING,POLISHING AND ABRASIVE
CUTTING OFF OPERATIONS
a. This power tool is intended to function as a grinder, sander,
wire brush, polisher or cut-off tool. Read all safety warnings,
instructions, illustrations and specifi cations provided with
this power tool. Failure to follow all instructions listed below
may result in electric shock, fire and/or serious injury.
b. Do not use accessories which are not specifi cally designed
and recommended by the tool manufacturer. Just because
the accessory can be attached to your power tool, it does
not assure safe operation.
c. The rated speed of the accessory must be at least equal to
the maximum speed marked on the power tool. Accessories
running faster than their rated speed can fly apart.
d. 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 guarded
or controlled.
e. The arbour size of wheels, fl anges, backing pads or any
other accessory must properly fi t the spindle of the power
tool. Accessories with arbour holes that do not match the
mounting hardware of the power tool will run out of balance,
vibrate excessively and may cause loss of control.
f. Do not use a damaged accessory. Before each use inspect
the accessory such as abrasive wheels for chips and
cracks, backing pad 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
normally break apart during this test time.
g. Wear personal protective equipment. Depending on
application, use face shield, safety goggles or safety glasses.
As appropriate, wear dust mask, hearing protectors, gloves
and shop 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.
h. 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.
i. Hold power tool by insulated gripping surfaces only, when
performing an operation where the cutting accessory may
contact hidden wiring or its own cord. Cutting accessory
contacting a "live" wire may make exposed metal parts of
the power tool "live" and shock the operator.
8448 manual Dremel 300S Cen-Nor.9 9 8448 manual Dremel 300S Cen-Nor.9 9
j. 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.
k. 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.
l. Do not run the power tool while carrying it at your side.
Accidental contact with the spinning accessory could snag
your clothing, pulling the accessory into your body.
m. Regularly clean the power tool's air vents. The motor's
fan will draw the dust inside the housing and excessive
accumulation of powdered metal may cause electrical
hazards.
n. Do not operate the power tool near fl ammable materials.
Sparks could ignite these materials.
o. Do not use accessories that require liquid coolants. Using
water or other liquid coolants may result in electrocution or
shock.
KICKBACK AND RELATED WARNINGS
Kickback is a sudden reaction to a pinched or snagged rotating
wheel, backing pad, brush or any other accessory. Pinching or
snagging causes rapid stalling of the rotating accessory which
in turn causes the uncontrolled power tool to be forced in the
direction opposite of the accessory's rotation at the point of the
binding. For example, if an abrasive wheel is snagged or pinched
by the workpiece, the edge of the wheel that is entering into
the pinch point can dig into the surface of the material causing
the wheel to climb out or kick out. The wheel may either jump
toward or away from the operator, depending on direction of
the wheel's movement at the point of pinching. Abrasive wheels
may also break under these conditions. Kickback is the result
of power tool misuse and/or incorrect operating procedures or
conditions and can be avoided by taking proper precautions as
given below.
a. Maintain a fi rm grip on the power tool and position your
body and arm to allow you to resist kickback forces. Always
use auxiliary handle, if provided, for maximum control over
kickback or torque reaction during start-up. The operator
can control torque reactions or kickback forces, if proper
precautions are taken.
b. Never place your hand near the rotating accessory. Accessory
may kickback over your hand.
c. Do not position your body in the area where power tool will
move if kickback occurs. Kickback will propel the tool in
direction opposite to the wheel's movement at the point of
snagging.
d. Use special care when working corners, sharp edges etc.
Avoid bouncing and snagging the accessory. Corners, sharp
edges or bouncing have a tendency to snag the rotating
accessory and cause loss of control or kickback.
e. Do not attach a saw chain woodcarving blade or toothed
saw blade. Such blades create frequent kickback and loss of
control.
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