SAFETY GUIDELINES
SAFETY GUIDELINES
For the riving knife and anti-kickback device to work, they must be engaged in the
workpiece.
The riving knife and anti-kickback device are ineffective when cutting
workpieces that are too short to be engaged with the riving knife and anti-kickback
device. Under these conditions a kickback cannot be prevented by the riving knife and
anti-kickback device.
Use the appropriate saw blade for the riving knife.
For the riving knife to function
properly, the saw blade diameter must match the appropriate riving knife and the
body of the saw blade must be thinner than the thickness of the riving knife and the
cutting width of the saw blade must be wider than the thickness of the riving knife.
DANGER: Never place your fingers or hands in the vicinity or in line with the saw
blade.
A moment of inattention or a slip could direct your hand towards the saw blade
and result in serious personal injury.
Feed the workpiece into the saw blade or cutter only against the direction of rotation.
Feeding the workpiece in the same direction that the saw blade is rotating above the
table may result in the workpiece, and your hand, being pulled into the saw blade.
Never use the mitre gauge to feed the workpiece when ripping and do not use the rip
fence as a length stop when cross cutting with the mitre gauge.
Guiding the workpiece
with rip fence and the mitre guage at the same time increases the likelihood of saw
blade binding and kickback.
When ripping, always apply the workpiece feeding force between the fence and the
saw blade. Use a push stick when the distance between the fence and the saw blade is
less than 6" (15 cm), and use a push block when this distance is less than 2" (5 cm).
“Work helping” devices will keep your hand at a safe distance from the saw blade.
Use only the push stick provided by the manufacturer or constructed in accordance
with the instructions.
This push stick provides sufficient distance of the hand from the
saw blade.
Never use a damaged or cut push stick.
A damaged push stick may break causing your
hand to slip into the saw blade.
Do not perform any operation “freehand”. Always use either the rip fence or the mitre
gauge to position and guide the workpiece.
“Freehand” means using your hands to
support or guide the workpiece, in lieu of a rip fence or mitre gauge. Freehand sawing
leads to misalignment, binding and kickback.
Never reach around or over a rotating saw blade.
Reaching for a workpiece may lead
to accidental contact with the moving saw blade.
Provide auxiliary workpiece support to the rear and/or sides of the saw table for long
and/or wide workpieces to keep them level.
A long and/or wide workpiece has a
tendency to pivot on the table’s edge causing loss of control, saw blade binding and
kickback.
Feed workpiece at an even pace.
Do not bend or twist the workpiece. If jamming
occurs, turn the tool off immediately, unplug the tool then clear the jam. Jamming the
saw blade by the workpiece can cause kickback or stall the motor.
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Do not remove pieces of cut-off material while the saw is running.
The material may
become trapped between the fence or inside the saw blade guard and the saw blade
pulling your fingers into the saw blade. Turn the saw off and wait until the saw blade
stops before removing material.
Use an auxiliary fence in contact with the table top when ripping workpieces less than
1/16" (2 mm) thick.
A thin workpiece may wedge under the rip fence and create a
kickback.
Never stand directly in line with the saw blade. Always position your body on the same
side of the saw blade as the fence.
Kickback may propel the workpiece at high velocity
towards anyone standing in front and in line with the saw blade.
Never reach over or in back of the saw blade to pull or support the workpiece.
Accidental contact with the saw blade may occur or kickback may drag your fingers
into the saw blade.
Never hold and press the workpiece that is being cut off against the rotating saw
blade.
Pressing the workpiece being cut off against the saw blade will create a binding
condition and kickback.
Align the fence to be parallel with the saw blade.
A misaligned fence will pinch the
workpiece against the saw blade and create kickback.
Use a featherboard to guide the workpiece against the table and fence when making
non-through cuts such as rabbeting, dadoing or resawing cuts.
A featherboard helps
to control the workpiece in the event of a kickback.
Use extra caution when making a cut into blind areas of assembled workpieces.
The
protruding saw blade may cut objects that can cause kickback.
Support large panels to minimise the risk of saw blade pinching and kickback.
Large
panels tend to sag under their own weight. Support(s) must be placed under all
portions of the panel overhanging the table top.
Use extra caution when cutting a workpiece that is twisted, knotted, warped or does
not have a straight edge to guide it with a mitre gauge or along the fence.
A warped,
knotted, or twisted workpiece is unstable and causes misalignment of the kerf with the
saw blade, binding and kickback.
Never cut more than one workpiece, stacked vertically or horizontally.
The saw blade
could pick up one or more pieces and cause kickback.
When restarting the saw with the saw blade in the workpiece, centre the saw blade in
the kerf so that the saw teeth are not engaged in the material.
If the saw blade binds,
it may lift up the workpiece and cause kickback when the saw is restarted.
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2) Cutting procedures warnings
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3) Kickback causes and related warnings
Kickback is a sudden reaction of the workpiece due to a pinched, jammed saw blade or
misaligned line of cut in the workpiece with respect to the saw blade or when a part of
the workpiece binds between the saw blade and the rip fence or other fixed object.
Most frequently during kickback, the workpiece is lifted from the table by the rear
portion of the saw blade and is propelled towards the operator.
Kickback is the result of saw misuse and/or incorrect operating procedures or conditions
and can be avoided by taking proper precautions as given below.
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