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24. Causes and operator prevention of “kickback”: Kickback is a sudden reaction
to a pinched, bound, or misaligned Saw Blade, causing an uncontrolled Circular
Saw to lift up and out from the workpiece toward the operator. When the Saw
Blade is pinched or bound tightly by the kerf closing down, the Saw Blade stalls
and the motor reaction drives the Circular Saw rapidly back toward the operator.
If the Saw Blade becomes twisted or misaligned in the cut, the teeth at the front
edge of the Saw Blade can raise the Circular Saw (walk up) toward the operator.
Kickback is a result of tool misuse and/or incorrect operating procedures or
conditions and can be avoided by taking proper precautions as given below:
* Maintain control of the Circular Saw at all times. Never allow the moving
Saw Blade to rest on the workpiece without holding on to the Saw with both
hands.
* When the Saw Blade is binding, or when interrupting a cut for any reason,
turn off the Circular Saw and hold the Saw motionless until the Saw Blade
comes to a complete stop. Never attempt to remove the Saw Blade from the
workpiece or pull the Saw backward while the Saw Blade is in motion or kick-
back may occur. Investigate and take corrective actions to eliminate the cause
of Saw Blade binding.
* When restarting the Circular Saw on a workpiece, center the Saw Blade
in the pre-cut kerf and check that the Saw Teeth are not engaged into the
workpiece. If the Saw Blade is binding, the Circular Saw may walk up or
kickback as the Saw is restarted.
* Support large panels to minimize the risk of Saw Blade pinching and
kickback. Large panels tend to sag under their own weight. Supports must be
placed under the panel and near the outer edge of the panel.
* Do not use a dull or damaged Saw Blade. Unsharpened or improperly set
Saw Blades produce a narrow kerf causing excessive friction, Saw Blade
binding and kickback.
* Push the Saw Blade past the workpiece prior to release.
* Make sure to check the Blade Guard for proper operation. Never disable
the Guard. Do not use the Circular Saw if the Guard assembly does not oper-
ate properly. Before each use, make sure the Blade Guard does not touch the
Saw Blade.
KICKBACK PRECAUTIONS
23. Make sure the workpiece is free from nails, metal rebar, and any other
foreign objects that could damage the Saw Blade or cause “kickback”.
SKU 95004 For technical questions, please call 1-800-444-3353 PAGE 7