6. The arbor size of wheels, flanges, backing pads
or any other accessory must properly fit the
spindle of the power tool. Accessories with arbor
holes that do not match the mounting hardware
of the power tool will run out of balance, vibrate
excessively and may cause loss of control.
7. Do not use a damaged accessory. Before each
use inspect the accessory such as abrasive
wheels for chips and cracks, backing pads for
cracks, tear or excessive wear. If the power
wool 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.
8. Wear personal protective equipment.
Depending on application, use face shield,
safety goggles or safety glasses. As appropriate,
wear dust mask, hearing protectors, gloves
and shop apron capable of stopping small
abrasive or work piece fragments. The eye
protection must be capable of stopping flying
debris generated by various operations. The
dust mask or respirator must be capable of
filtrating particles generated by your operation.
Prolonged exposure to high intensity noise may
cause hearing loss.
9. Keep bystanders a safe distance away from
work area. Anyone entering the work area must
wear personal protective equipment. Fragments
of the work piece or of a broken accessory may
fly away and cause injury beyond the immediate
area of operation. Contact with "live" wire will
also make exposed metal parts of the power
tool "live" and shock the operator.
10. Hold the power tool only by the insulated
gripping surfaces when performing an
operation where the tool may contact hidden
wiring or its own power cord. Contact with a
"live" wire will also make exposed metal parts
of the power tool "live" and shock the operator.
11. Position the cord clear of the spinning
accessory. If you lose control, the cord may be
cut or snagged and your hand or arm may be
pulled into the spinning accessory.
12. Never lay the power tool down until the
accessory has come to a complete stop. The
4
spinning 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
spinning accessory could snag your clothing,
pulling the accessory into your body.
14. Regularly clean the air vents of the
power tool. The fan of the motor will draw
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
coolants. Using water or other coolants may
result in electric cauterization or electric
shock.
ADDITIONAL SAFETY WARNING:
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 the 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.
1. Maintain a firm grip with your hands on the
power tool and position your body and arm to
allow you to resist kickback