Dremel 4200 Operating/Safety Instructions Manual page 3

DM 2610029872 01-13_DM 2610029872 01-13.qxp 1/7/13 10:43 AM Page 3
Disconnect the plug from the power source
and/or the battery pack from the power tool
before making any adjustments, changing
accessories, or storing power tools. Such
preventive safety measures reduce the risk of
starting the power tool accidentally.
Store idle power tools out of the reach of
children and do not allow persons unfamiliar
with the power tool or these instructions to
operate the power tool. Power tools are
dangerous in the hands of untrained users.
Maintain power tools. Check for misalignment
or binding of moving parts, breakage of
parts and any other condition that may
affect the power tool's operation. If damaged,
have the power tool repaired before use.
Many accidents are caused by poorly
maintained power tools.
Hold power tool by insulated gripping
surfaces, because the cutter may contact
its own cord. Cutting a "live" wire may make
exposed metal parts of the power tool "live"
and shock the operator.
Use clamps or another practical way to
secure and support the workpiece to a
stable platform. Holding the work by your
hand or against the body leaves it unstable
and may lead to loss of control.
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.
Safety Rules for Rotary Tools
3
Keep cutting tools sharp and clean. Properly
maintained cutting tools with sharp cutting
edges are less likely to bind and are easier to
control.
Use the power tool, accessories and tool
bits etc. in accordance with these instructions,
taking into account the working conditions
and the work to be performed. Use of the
power tool for operations different from those
intended could result in a hazardous situation.
Service
Have your power tool serviced by a qualified
repair person using only identical
replacement parts. This will ensure that the
safety of the power tool is maintained.
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.
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
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.
greater than