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Circular Saws - Additional Safety Rules 6.2
Additional Safety Rules
Circular Saws
a) Keep hands away from cutting area and
blade. Keep your second hand on the auxiliary
handle, or motor housing. If both hands are
holding the saw, they cannot be cut by the blade.
b) Do not reach underneath the workpiece.
The guard cannot protect you from the blade
below the workpiece.
c) Adjust the cutting depth to the thickness of
the workpiece. Less than a full tooth of the
blade teeth should be visible below the
workpiece.
d) Never hold the piece being cut in your hands
or across your leg. Secure the workpiece to a
stable platform. It is important to support the
work properly to minimise body exposure, blade
binding, or loss of control.
e) Hold the power tool by the insulated grip
when performing an operation where the cutting
tool may contact hidden wiring or its own cord.
Contact with a “live” wire will also make exposed
metal parts of the power tool “live” and shock the
operator.
f) When ripping, always use a rip fence or
straight edge guide. This improves the accuracy
of cut and reduces the chance of the blade
binding.
g) Always use blades with the correct size and
shape (diamond versus round) or arbour holes.
Blades that do not match the mounting hardware
of the saw will run eccentrically, causing loss of
control.
h) Never use damaged or incorrect blade
washers or bolt. The blade washers and bolt
were specifically designed for your saw, for
optimum performance and safety of operation
I) Wear goggles, ear protection and breathing
mask for better protection yourself against
personal Injury.
Causes and operator prevention of kickback
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Kickback is a sudden reaction to a pinched,
bound or misaligned saw blade, causing an
uncontrolled saw to lift up and out of the
workpiece towards the operator.
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When the blade is pinched or bound tightly
by the kerf closing down, the blade stalls and
the motor reaction drives the unit rapidly
back towards the operator.
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If the blade becomes twisted or misaligned in
the cut, the teeth at the back edge of the
blade can dig into the top surface of the
wood causing the blade to climb out of the
kerf and jump back towards operator.
Kickback is the result of 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 with both hands on the
saw and position your arms to resist kickback
forces. Position your body to either side of the
blade, but not in line with the blade. Kickback
could cause the saw to jump backwards – you
will be able to control its force by standing on the
side.
b) When the blade is binding, or when
interrupting a cut for any reason, release the
trigger and hold the saw motionless in the
material until the blade comes to a complete
stop. Never attempt to remove the saw from the
work or pull the saw backward while the blade is
in motion or kickback may occur. Check the
situation and take corrective actions to eliminate
the cause of blade binding.
c) When restarting a saw in the workpiece,
centre the saw blade in the kerf and check that
the saw teeth are not engaged into the material.
If saw blade is binding, it may kick back from the
workpiece as the saw is restarted.
d) Support large workpieces to minimize the
risk of blade pinching and kickback. Large
workpieces tend to sag under their own weight.
Supports must be placed under the panel on
both sides, near the line or cut and near the
edge of the piece.
e) Do not use dull or damaged blades.
Unsharpened or improperly set blades produce
a narrow kerf causing excessive friction, blade
binding and kickback.
f) Blade depth and bevel adjusting locking
levers must be tight and secure before making a
cut. If blade adjustment shifts while cutting, it
may cause binding and kickback.
g) Use extra caution when making a “plunge
cut” into existing walls or other blind areas. The
protruding blade may cut objects that can cause
kickback.
Circular Saws - Additional Safety Rules 6.2
Safety instructions regarding lower guard
a) Check lower guard for proper closing before
each use. Do not operate the saw if the lower
guard does not move freely and close instantly.
Never clamp or tie the lower guard in the open
position. If the saw is accidentally dropped,
lower guard may be bent. Raise the lower guard
with the blade guard lever and make sure it
moves freely and does not touch the blade or
any other part, in all angles and depths of cut.
b) Check the operation of the lower guard
spring. If the guard and the spring are not
operating properly, they must be serviced before
use. Lower guard may operate sluggishly due to
damaged parts, gummy deposits, or a build-up
of debris.
c) Lower guard should be retracted manually
only for special cuts such as “plunge cuts” and
“compound cuts”. Raise lower guard by blade
guard lever. As soon as blade enters the
material, the lower guard must be released. For
all other sawing tasks, the lower guard should
operate automatically.
d) Always ensure that the lower guard is
covering the blade before placing the saw down
on bench or floor. An unprotected, coasting
blade will cause the saw to move backward,
cutting whatever is in its path. Be aware of the
time it takes for the blade to stop after the switch
is released.
WARNING!
(POWERhandle) from the tool before making
any adjustments or maintenance, including
changing the blade.
Always remove the battery pack