Additional Safety Rules For Mitre Saws - DeWalt DWS771 Original Instructions Manual

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spinning saw blade while cutting. There should be no nails or foreign
objects in the workpiece.
h ) Do not use the saw until the table is clear of all tools, wood
scraps, etc., except for the workpiece. Small debris or loose pieces
of wood or other objects that contact the revolving blade can be
thrown with high speed.
i ) Cut only one workpiece at a time. Stacked multiple workpieces
cannot be adequately clamped or braced and may bind on the blade
or shift during cutting.
j ) Ensure the mitre saw is mounted or placed on a level, firm work
surface before use. A level and firm work surface reduces the risk of
the mitre saw becoming unstable.
k ) Plan your work. Every time you change the bevel or 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.
l ) 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 mitre saw 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.
m ) 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.
n ) 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.
o ) 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.
p ) Let the blade reach full speed before contacting the workpiece.
This will reduce the risk of the workpiece being thrown.
q ) If the workpiece or blade becomes jammed, turn the mitre
saw 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
mitre saw.
r ) 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.
s ) 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.

Additional Safety Rules for Mitre Saws


WARNING: Do not connect to the mains power supply into the unit
until complete instructions are read and understood.
DO NOT OPERATE THIS MACHINE until it is completely assembled and
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installed according to the instructions. A machine incorrectly assembled
can cause serious injury.
• OBTAIN ADVICE from your supervisor, instructor, or another qualified
person if you are not thoroughly familiar with the operation of this
machine. Knowledge is safety.
• MAKE CERTAIN the blade rotates in the correct direction. The teeth on the
blade should point in the direction of rotation as marked on the saw.
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• TIGHTEN ALL CLAMP HANDLES, knobs and levers prior to operation.
Loose clamps can cause parts or the workpiece to be thrown at
high speeds.
BE SURE all blade and blade clamps are clean, recessed sides of blade
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clamps are against blade and arbour screw is tightened securely. Loose or
improper blade clamping may result in damage to the saw and possible
personal injury.
• DO NOT OPERATE ON ANYTHING OTHER THAN THE DESIGNATED
VOLTAGE for the saw. Overheating, damage to the tool and personal
injury may occur.
• DO NOT WEDGE ANYTHING AGAINST THE FAN to hold the motor
shaft. Damage to tool and possible personal injury may occur.
• NEVER HAVE ANY PART OF YOUR BODY IN LINE WITH THE PATH
OF THE SAW BLADE. Personal injury will occur.
• NEVER APPLY BLADE LUBRICANT TO A RUNNING BLADE. Applying
lubricant could cause your hand to move into the blade resulting in
serious injury.
• DO NOT place either hand in the blade area when the saw is connected to
the power source. Inadvertent blade activation may result in serious injury.
• NEVER REACH AROUND OR BEHIND THE SAW BLADE. A blade can
cause serious injury.
• DO NOT REACH UNDERNEATH THE SAW unless it is unplugged and
turned off. Contact with saw blade may cause personal injury.
• SECURE THE MACHINE TO A STABLE SUPPORTING SURFACE.
Vibration can possibly cause the machine to slide, walk, or tip over, causing
serious injury.
• USE ONLY CROSSCUT SAW BLADES recommended for mitre saws.
For best results, do not use carbide tipped blades with hook angles in
excess of 7 degrees. Do not use blades with deep gullets. These can deflect
and contact the guard, and can cause damage to the machine and/or
serious injury.
• USE ONLY BLADES OF THE CORRECT SIZE AND TYPE specified for this
tool to prevent damage to the machine and/or serious injury (complying
with EN847-1).
• INSPECT BLADE FOR CRACKS or other damage prior to operation. A
cracked or damaged blade can come apart and pieces can be thrown at
high speeds, causing serious injury. Replace cracked or damaged blades
immediately. Observe the maximum speed marked on the saw blade.
CLEAN THE BLADE AND BLADE CLAMPS prior to operation. Cleaning
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the blade and blade clamps allows you to check for any damage to the
blade or blade clamps. A cracked or damaged blade or blade clamp
can come apart and pieces can be thrown at high speeds, causing
serious injury.
THE MAXIMUM SPEED OF THE SAW BLADE shall always be greater
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than or at least equal to the speed marked on the rating plate of the tool.
THE SAW BLADE DIAMETER must be in accordance with the markings
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on the rating plate of the tool.
• DO NOT USE WARPED BLADES. Check to see if the blade runs true and
is free from vibration. A vibrating blade can cause damage to the machine
and/or serious injury.
• DO NOT use lubricants or cleaners (particularly spray or aerosol) in the
vicinity of the plastic guard. The polycarbonate material used in the guard
is subject to attack by certain chemicals.
KEEP GUARD IN PLACE and in working order.
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• ALWAYS USE THE KERF PLATE AND REPLACE THIS PLATE WHEN
DAMAGED. Small chip accumulation under the saw may interfere with
the saw blade or may cause instability of workpiece when cutting.
USE ONLY BLADE CLAMPS SPECIFIED FOR THIS TOOL to prevent
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damage to the machine and/or serious injury.
• MAKE SURE to use the correct saw blade for the material to be cut.
CLEAN THE MOTOR AIR SLOTS of chips and sawdust. Clogged motor
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air slots can cause the machine to overheat, damaging the machine and
possibly causing a short which could cause serious injury.