Page
21
/
41
9- Keep bystanders at a safe distance away from the working 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.
10- Hold the power tool only by the insulated gripping surfaces when performing an
operation where the cutting accessory may contact hidden wiring or its own cord. The contact
with a “live” wire may energise metal parts of the power tool and create a shock hazard to the
operator.
11- Always position the power cord clear of the moving accessory. Should you lose control of
the tool, the cord may be cut or snagged and your hand or arm may be pulled into the spinning
accessory.
12- Never lay down the power tool down until the accessory has come to a complete stop. The
accessory may grab the surface and pull the power tool out of your control.
13- Do not run the power tool while carrying it at your side. Accidental contact with the
accessory could snag your clothing, pulling the accessory into your body.
14- 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.
15- Do not operate the power tool near flammable materials. Sparks could ignite these
materials.
16- Do not use accessories that require liquid coolants. Using water or other liquid coolants may
result in electrocution or electric shock.
3.4- Kickback and related warnings
Kickback is a sudden reaction to a pinched or snagged rotating disk, 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 firm grip on the power tool and position your body and arms 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. The accessory may kickback over your
hand.
c- Do not position your body in the area where the power tool will move if kickback occurs.
Kickback will propel the tool in the 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 over the power tool.