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g) Always use blades with correct size and shape (diamond versus round) of
arbor 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 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, center 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 minimize 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.
e) Do not use dull or damaged blades. Unsharpened or improperly set blades
produce narrow kerf causing excessive friction, blade binding and kickback.
f) Blade depth and bevel adjusting locking levers must be tight and secure
before making cut. If blade adjustment shifts while cutting, it may cause
binding and kickback.
g) Use extra caution when sawing into existing walls or other blind areas. The
protruding blade may cut objects that can cause kickback.
LOWER GUARD SAFETY INSTRUCTIONS
a) Check lower guard for proper closing before each use. Do not operate the
saw if lower guard does not move freely and close instantly. Never clamp
or tie the lower guard into the open position. If saw is accidentally dropped,
lower guard may be bent. Raise the lower guard with the retracting handle 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 retracting
handle and as soon as blade enters the material, the lower guard must be
released. For all other sawing, the lower guard should operate automatically.
d) Always observe that the lower guard is covering the blade before placing
saw down on bench or floor. An unprotected, coasting blade will cause the
saw to walk backwards, cutting whatever is in its path. Be aware of the time it
takes for the blade to stop after switch is released.
NOTE: Although the above information references wood, this saw is only to be used
to cut metal. Kickback can occur when cutting metal.
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