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Safety Rules for Cordless Rotary Tools
Accessories must be rated for at least the speed
recommended on the tool warning label. Wheels
and other accessories running over rated speed can
fly apart and cause injury.
Hold tool by insulated gripping surfaces when per-
forming an operation where the cutting tool may
contact hidden wiring. Contact with a "live" wire will
make exposed metal parts of the tool "live" and shock
the operator. If cutting into existing walls or other
blind areas where electrical wiring may exist is
unavoidable, disconnect all fuses or circuit breakers
feeding this worksite.
Do not operate the flexible shaft with a sharp bend.
Over bending the shaft can generate excessive heat
on the jacket or hand piece. The recommended mini-
mum is 6" radius.
Disconnect battery pack from tool or place the
switch in the locked or off position before making
any assembly, adjustments or changing acces-
sories. Such preventive safety measures reduce the
risk of starting the tool accidentally.
Be aware of the switch location, when placing the
tool down or when picking the tool up. You may acci-
dentally activate the switch.
Always hold the hand piece firmly in your hands
during the start-up. The reaction torque of the motor,
as it accelerates to full speed, can cause the shaft to
twist.
Always wear safety goggles and dust mask. Use
only in well ventilated area. Using personal safety
devices and working in safe environment reduces risk
of injury.
After changing the bits or making any adjustments,
make sure the collet nut and any other adjustment
devices are securely tightened. Loose adjustment
device can unexpectedly shift, causing loss of control,
loose rotating components will be violently thrown.
Do not reach in the area of the spinning bit. The
proximity of the spinning bit to your hand may not
always be obvious.
Allow brushes to run at operating speed for at least
one minute before using wheel. During this time no
one is to stand in front or in line with the brush.
Loose bristles or wires will be discharged during the
run-in time.
Wire and bristle brushes must never be operated at
speeds greater than 15,000/min. Direct the dis-
charge of the spinning wire brush away from you.
Small particles and tiny wire fragments may be dis-
charged at high velocity during the “cleaning” action
with these brushes and may become imbedded in
your skin. Bristles or wires will be discharged from
the brush at high speeds.
Wear protective gloves and face shield with wire or
bristle brushes. Apply wire or bristle brushes light-
ly to the work as only the tips of the wire/bristles do
the work. “Heavy” pressure on bristles will cause the
wire or bristle to become overstressed, resulting in a
wiping action and will cause the bristles/wire to be
discharged.
Carefully handle both the tool and individual grind-
ing wheels to avoid chipping or cracking. Install a
new wheel if tool is dropped while grinding. Do not
use a wheel that may be damaged. Fragments from
a wheel that bursts during operation will fly away at
great velocity possibly striking you or bystanders.
Never use dull or damaged bits. Sharp bits must be
handled with care. Damaged bits can snap during
use. Dull bits require more force to push the tool,
possibly causing the bit to break.
Use clamps to support workpiece whenever practi-
cal. Never hold a small workpiece in one hand and
the tool in the other hand while in use. Allow for
sufficient space, at least 6", between your hand and
the spinning bit. Round material such as dowel rods,
pipes or tubing have a tendency to roll while being
cut, and may cause the bit to “bite” or jump toward
you. Clamping a small workpiece allows you to use
both hands to control the tool.
Inspect your workpiece before cutting. When cutting
irregularly shaped workpieces, plan your work so it
will not slip and pinch the bit and be torn from your
hand. For example, if carving wood, make sure there
are no nails or foreign objects in the workpiece. Nails
or foreign objects can cause the bit to jump.
Never start the tool when the bit is engaged in the
material. The bit cutting edge may grab the material
causing loss of control of the cutter.
Avoid bouncing and snagging the wheel, especially
when working corners, sharp edges etc. This can
cause loss of control and kick-back.
The direction of feed with the bit into the material
when carving, routing or cutting is very important.
Always feed the bit into the material in the same
direction as the cutting edge is exiting from the
material (which is the same direction as the chips
are thrown). Feeding the tool in the wrong direction,
causes the cutting edge of the bit to climb out of the
work and pull the tool in the direction of this feed.
If the workpiece or bit becomes jammed or bogged
down, turn the tool “OFF” by the switch. Wait for
all moving parts to stop and unplug the tool, then
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