35
d)
The rated speed of the accessory must be at least equal to the maximum speed marked on the
power tool.
Accessories running faster than their rated speed can break and fly apart.
e)
The outside diameter and the thickness of your accessory must be within the capacity rating of
your power tool.
Incorrectly sized accessories cannot be adequately guarded or controlled.
f)
Threaded mounting of accessories must match the grinder spindle thread. For accessories
mounted by flanges, the arbour hole of the accessory must fit the locating diameter of the flange.
Accessories that do not match the mounting hardware of the power tool will run out of balance,
vibrate excessively and may cause loss of control.
g)
Do not use a damaged accessory. Before each use inspect the accessories such as abrasive wheels
for chips and cracks, backing pads for cracks, tear or excess wear, wire brushes for loose or cracked
wires. If power tool or accessory is dropped, inspect for damage or install an undamaged
accessory. After inspecting and installing an accessory, position yourself and bystanders away from
the plane of the rotating accessory and run the power tool at maximum no-load speed for one
minute.
Damaged accessories will normally break apart during this test time.
h)
Wear personal protective equipment. Depending on the application, use face shield, safety goggles
or safety glasses. As appropriate, wear a dust mask, hearing protectors, gloves and a workshop
apron capable of stop-ping small abrasive or workpiece fragments.
The eye protection must be
capable of stopping flying debris generated by various operations. The dust mask or respirator must
be capable of filtering particles generated by your operation. Prolonged exposure to high intensity
noise may cause hearing loss.
i)
Keep bystanders a safe distance away from work 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.
j)
Hold the 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.
k)
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.
l)
Never lay the power tool down until the accessory has come to a complete stop.
The spinning
accessory may catch the surface and pull the power tool out of your control.
m)
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.
n)
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.
o)
Do not operate the power tool near flammable materials.
Sparks could ignite these materials.
p)
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
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 arm to allow you to resist
kickback forces. Always use an auxiliary handle, if provided, for maximum control over kickback or
torque reaction during start-up.
The operator can control torque reactions or kick-back forces, if
proper precautions are taken.
Summary of Contents for AUB18-115
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