Kickback And Related Warnings - DeWalt DW872-QS Instructions Manual

EngLIsh
work surface reduces the risk of the Metal Cutting Chopsaw
becoming unstable.
Plan your work. Every time you change the mitre angle
•
setting, make sure the adjustable fence is set correctly
to support the workpiece and will not interfere with the
blade or the guarding system. Without turning the tool
"ON" and with no workpiece on the table, move the saw blade
through a complete simulated cut to assure there will be no
interference or danger of cutting the fence.
Provide adequate support such as table extensions, saw
•
horses, etc. for a workpiece that is wider or longer than
the table top. Workpieces longer or wider than the Metal
Cutting Chopsaw table can tip if not securely supported. If the
cut-off piece or workpiece tips, it can lift the lower guard or be
thrown by the spinning blade.
Do not use another person as a substitute for a table
•
extension or as additional support. Unstable support for
the workpiece can cause the blade to bind or the workpiece to
shift during the cutting operation pulling you and the helper
into the spinning blade.
The cut‑off piece must not be jammed or pressed by any
•
means against the spinning saw blade. If confined, i.e.
using length stops, the cut-off piece could get wedged against
the blade and thrown violently.
Always use a clamp or a fixture designed to properly
•
support round material such as rods or tubing. Rods have
a tendency to roll while being cut, causing the blade to "bite"
and pull the work with your hand into the blade.
Let the blade reach full speed before contacting the
•
workpiece. This will reduce the risk of the workpiece being
thrown.
If the workpiece or blade becomes jammed, turn the
•
Metal Cutting Chopsaw off. Wait for all moving parts to
stop and disconnect the plug from the power source and/
or remove the battery pack. Then work to free the jammed
material. Continued sawing with a jammed workpiece
could cause loss of control or damage to the Metal Cutting
Chopsaw.
After finishing the cut, release the switch, hold the
•
saw head down and wait for the blade to stop before
removing the cut‑off piece. Reaching with your hand near
the coasting blade is dangerous.
Hold the handle firmly when making an incomplete
•
cut or when releasing the switch before the saw head
is completely in the down position. The braking action
of the saw may cause the saw head to be suddenly pulled
downward, causing a risk of injury.
Position yourself and bystanders away from the plane
•
of the rotating saw blade. The guard helps to protect the
operator from broken saw blade fragments and accidental
contact with saw blade.
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.
28
Always use undamaged saw blade flanges that are of
•
correct diameter for your selected saw blade. Proper
saw blade flanges support the saw blade thus reducing the
possibility of saw blade breakage.
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.
The arbour size of saw blades and flanges must properly
•
fit the spindle of the power tool. Saw blades and flanges
with arbour 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.
Do not use damaged saw blades. Before each use,
•
inspect the saw blades for chips and cracks. If the power
tool or saw blade is dropped, inspect for damage or
install an undamaged saw blade. After inspecting
and installing the saw blade, position yourself and
bystanders away from the plane of the rotating saw
blade and run the power tool at maximum no load
speed for one minute. Damaged saw blades will normally
break apart during this test time.
Wear personal protective equipment. Depending on
•
application, use face shield, safety goggles or safety
glasses. As appropriate, wear a dust mask, hearing
protectors, gloves and shop apron capable of stopping
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
filtrating particles generated by your operation. Prolonged
exposure to high intensity noise may cause hearing loss.
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 saw blade may fly away and cause injury beyond
immediate area of operation.
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 saw blade.
Regularly clean the power tool's air vents. The
•
motor's fan can draw the dust inside the housing and
excessive accumulation of powdered metal may cause
electrical hazards.
Do not operate the power tool near flammable
•
materials. Do not operate the power tool while placed
on a combustible surface such as wood. Sparks could
ignite these materials.
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
saw blade. Pinching orsnagging causes rapid stalling of the
rotating saw blade which in turn causes the uncontrolled cutting
unit to be forced upwards toward the operator.