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ADDITIONAL SAFETY INSTRUCTIONS FOR CIRCULAR SAWS
7
DANGER! Keep hands away from cutting area and the blade. Keep
your second hand on auxiliary handle,
or motor housing. If both hands
are holding the saw, they cannot be cut by the blade.
a) Do not reach underneath the workpiece.
The guard cannot protect you from
the blade below the workpiece.
b) 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.
c) Never hold 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 minimize body exposure, blade binding, or loss of control.
d) Hold power tool by insulated gripping surfaces 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.
e) When ripping always use a rip fence or straight edge guide.
This improves
the accuracy of cut and reduces the chance of blade binding.
f)
Always use blades with correct size and shape (diamond versus round) of
arbour holes.
Blades that do not match the mounting hardware of the saw will
run eccentrically, causing loss of control.
g) Never use damaged or incorrect blade washers or bolt.
The blade washers
and bolt were specially designed for your saw, for optimum performance and
safety of operation.
Further safety instructions for all saws
Causes and operator prevention of kickback:
•
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 toward the operator;
•
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 toward the operator;
•
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 toward 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.
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, but
kickback forces can be controlled by the operator, if proper precautions are taken.
b) When 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.
Investigate 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 saw teeth are not engaged into the material.
If saw blade is
binding, it may walk up or kickback from the workpiece as the saw is restarted.
d) Support large panels to minimise the risk of blade pinching and kickback.
Large panels tend to sag under their own weight. Supports must be placed under
the panel on both sides, near the line of cut and near the edge of the panel.
