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FuRtHeR
sAFetY
InstRuctIOns
OPeRAtIOns
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.
a) 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.
b) never place your hand near the rotating
accessory. Accessory may kickback over your
hand.
c) 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.
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.
AddItIOnAL sAFetY InstRuctIOns FOR GRIndInG
OPeRAtIOns
Safety warnings specific for grinding operations:
a) 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 cannot be
adequately guarded and are unsafe.
b) the grinding surface of centre depressed
wheels must be mounted below the plane of
the guard lip. An improperly mounted wheel that
projects through the plane of the guard lip cannot
be adequately protected.
c) the guard must be securely attached to the
power tool and positioned for maximum safety,
FOR
ALL
so the least amount of wheel is exposed
towards the operator. The guard helps to protect
the operator from broken wheel fragments,
accidental contact with wheel and sparks that
could ignite clothing.
d) 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.
e) 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 different from
grinding wheel flanges.
f) do not use worn down wheels from larger
power tools. Wheel intended for larger power tool
is not suitable for the higher speed of a smaller tool
and may burst.
AnGLe GRIndeR sAFetY PRecAutIOns
a) Check that the speed marked on the grinding
wheel is equal to or greater than the rated speed
of the product.
b) Ensure that the dimensions of the grinding wheel
are compatible with the product and that the wheel
fits the spindle.
c) Grinding wheels must be stored in a dry place.
d) Do not store objects on top of the grinding wheels.
e) Grinding wheels must not be used for any operation
other than grinding.
f) Grinding wheels must be stored and handled
with care in accordance with the manufacturer's
instruction.
g) Inspect the grinding wheel before use to ensure
that it is not chipped or cracked. Chips or cracks
can cause the wheels to shatter, resulting in
possible serious injury.
h) Ensure that the wheel is fitted in accordance with
this manual.
i)
Ensure that the grinding wheel is correctly mounted
and tightened before use and run the product at
no-load speed for 30 seconds in a safe position.
Stop immediately if there is considerable vibration
or if other defects are detected. If this condition
occurs, check the product to determine the cause.
j)
Do not use separate reducing bushings or adapters
to adapt large hole grinding wheels.
k) Check that the workpiece is properly supported.
l)
Use only grinding wheels approved by RYOBI.
m) Ensure that sparks resulting from use do not
create a hazard, e.g., do not hit people, or ignite
flammable substances.
n) Always use protective safety glasses and ear
protectors.
3
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