Dremel 4000 Battery Charger User Manual


 
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Hold tool by insulated gripping surfaces
when performing an operation where the
cutting tool may contact hidden wiring or
its own cord. Contact with a "live" wire will
make exposed metal parts of the tool "live"
and shock the operator.
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.
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 minimum is 5"
radius.
Always disconnect the power cord from
the power source before making any
adjustments or attaching any accessories.
You may unexpectedly cause the tool to start
leading to serious personal injury.
Be aware of the switch location, when
placing the tool down or when picking the
tool up. You may accidentally 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 opera ting 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 discharge of the
spinning wire brush away from you. Small
particles and tiny wire fragments may be
discharged 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 lightly 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 grinding 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 practical. 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.
Safety Rules for Rotary Tools
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