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5. NEVER hold piece being cut in your hands
or across your leg. It is important to support
the work properly to minimize body exposure,
wheel binding, or loss of control.
6. Hold 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 tool
“live” and shock the operator.
7. When ripping always use a rip fence or
straight edge guide. This improves the
accuracy of cut and reduces the chance for
wheel binding.
8. Always use wheels with correct size and
shape (diamond vs. round) arbor holes.
Wheels that do not match the mounting hard-
ware of the tool will run eccentrically, causing
loss of control.
9. Never use damaged or incorrect wheel
washers or bolts. The wheel washers and
bolt were specially designed for your tool, for
optimum performance and safety of opera-
tion.
10. Causes and Operator Prevention of Kick-
back:
Kickback is a sudden reaction to a pinched,
bound, or misaligned wheel, causing an
uncontrolled tool to lift up and out of the work-
piece toward the operator.
When the wheel is pinched or bound tightly
by the kerf closing down, the wheel stalls and
the motor reaction drives the unit rapidly back
toward the operator.
If the wheel becomes twisted or misaligned in
the cut, the teeth at the back edge of the
wheel can dig into the top surface of the
material being cut causing the wheel to climb
out of the kerf and jump back toward the
operator.
Kickback is the result of tool misuse and/or
incorrect operating procedures or conditions
and can be avoided by taking proper precau-
tions as given below:
Maintain a firm grip on the tool and posi-
tion your body and arm to allow you to
resist KICKBACK forces. KICKBACK forces
can be controlled by the operator, if proper
precautions are taken.
When wheel is binding, or when interrupt-
ing a cut for any reason, release the trig-
ger and hold the tool motionless in the
material until the wheel comes to a com-
plete stop. Never attempt to remove the
tool from the work or pull the tool back-
ward while the wheel is in motion or KICK-
BACK may occur. Investigate and take
corrective actions to eliminate the cause of
wheel binding.
When restarting a tool in the workpiece,
center the wheel in the kerf and check that
teeth are not engaged into the material. If
wheel is binding, it may walk up or KICK-
BACK from the workpiece as the tool is
restarted.
Support large panels to minimize the risk
of wheel 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.
To minimize the risk of wheel pinching and
kickback. When cutting operation requires
the resting of the tool on the workpiece, the
tool shall be rested on the larger portion and
the smaller piece cut off.
Do not use dull or damaged wheel.
Unsharpened or improperly set wheels pro-
duce narrow kerf causing excessive friction,
wheel binding and KICKBACK.
Wheel depth and bevel adjusting locking
levers must be tight and secure before
making cut. If wheel adjustment shifts while
cutting, it may cause binding and KICKBACK.
Use extra caution when making a “Pocket
Cut” into existing walls or other blind
areas. The protruding wheel may cut objects
that can cause KICKBACK.
NEVER place your hand or fingers behind
the tool. If kickback occurs, the tool could
easily jump backwards over your hand, lead-
ing to serious personal injury.