Fein MShy_664_1 User Manual
Page 20

20
en
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.
Position the cord clear of the spinning accessory. If you 
lose control of the power tool, 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.
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.
Regularly clean the power tool’s air vents. The motor’s fan 
will draw the dust inside the housing and excessive accu-
mulation of powdered metal may cause electrical haz-
ards.
Do not operate the power tool near flammable materials. 
Sparks could ignite these materials.
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 acces-
sory. 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 mate-
rial 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 incor-
rect operating procedures or conditions and can be 
avoided by taking proper precautions as given below.
Maintain a firm 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.
Never place your hand near the rotating accessory. Acces-
sory may kickback over your hand.
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.
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.
Do not attach a saw chain woodcarving blade or toothed 
saw blade. Such blades create frequent kickback and loss 
of control over the power tool.
Additional safety instructions for grinding and 
cutting off operations
Use only wheel types that are recommended for your power 
tool and the specific guard designed for the selected wheel. 
Wheels for which the power tool was not designed can-
not be adequately guarded and are unsafe.
Wheels must be used only for recommended applications. For 
example: do not grind with the side of cut-off wheel. Abrasive 
cut-off wheels are intended for peripheral grinding, side 
forces applied to these wheels may cause them to shatter.
Always use undamaged wheel flanges that are of correct 
size and shape for your selected wheel. Proper wheel 
flanges support the wheel thus reducing the possibility of 
wheel breakage. Flanges for cut-off wheels may be differ-
ent from grinding wheel flanges.
Do not use worn down wheels from larger power tools. 
Wheels intended for larger power tools are not suitable 
for the higher speed of a smaller tool and may burst.
Additional safety warnings
Use elastic spacers/liners when these are provided with the 
grinding/sanding accessory.
Make sure that the application tools are mounted in accord-
ance with the manufacturers instructions. The mounted 
application tools must be able to rotate freely. Incorrectly 
mounted application tools can become loose during 
operation and be thrown from the machine.
Handle accessories carefully and store them according to 
the manufacturer’s instructions. Damaged accessories can 
form cracks and break off during operation.
When using application tools with a threaded insert, take 
care that the thread in the application tool is long enough 
to hold the spindle length of the power tool. The thread in 
the application tool must match the thread on the spindle. 
Incorrectly mounted application tools can loosen during 
operation and cause injuries.
Beware of any concealed electric cables, gas or water con-
duits; check the working area with a metal detector, for 
example, before commencing work.
Use a stationary extraction system, blow out ventilation 
slots frequently and connect a residual current device 
(RCD) on the line side. When working metal under 
extreme operating conditions, it is possible for conduc-
tive dust to settle in the interior of the power tool. The 
total insulation of the power tool can be impaired.
Do not rivet or screw any name-plates or signs onto the 
power tool. If the insulation is damaged, protection against 
an electric shock will be ineffective. Adhesive labels are 
recommended.
Before putting into operation, check the mains connection 
and the mains plug for damage.
This machine is also intended to be powered by a.c. gen-
erators with sufficient power output that correspond 
with ISO 8528, design class G2. Compliance with this 
Standard in particular is not given when the so-called dis-
tortion factor exceeds 10%. When in doubt, inform 
yourself about the generator in use.
Hand/arm vibrations
The vibration emission level given in this information 
sheet has been measured in accordance with a standard-
ised test given in EN 60745 and may be used to compare 
one tool with another. It may be used for a preliminary 
assessment of exposure.
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