Kickback And Related Warnings - Dremel Ultra-Saw US20V Operating/Safety Instructions Manual

KICKBACK and related
warnings
KICKbACK is a sudden reaction to a pinched
or snagged rotating wheel. Pinching or
snagging causes rapid stalling of the
rotating wheel which in turn causes the
uncontrolled power tool to be forced in the
direction opposite of the wheel's rotation at
the point of the binding.
For example, if an abrasive wheel is
snagged or pinched by the workpiece, the
edge of the wheel that is entering into the
pinch point can dig into the surface of the
material causing the wheel to climb out or
kick out. The wheel may either jump toward
or away from the operator, depending on
direction of the wheel's movement at the
point of pinching. Abrasive wheels may also
break under these conditions.
KICKbACK is the result of power tool
misuse and/or
procedures or conditions and can be
avoided by taking proper precautions as
given below.
a. Maintain a firm grip on the power tool
and position your body and arm to allow
you to resist KICKBACK forces. Always
use auxiliary handle, if provided, for
maximum control over KICKBACK or
torque reaction during start-up. The
operator can control torque reactions or
KICKbACK forces, if proper precautions
are taken.
b. Never place your hand near the rotating
accessory. Accessory may KICKbACK over
your hand.
c. Do not position your body in line with
the rotating wheel. KICKbACK will propel
the tool in direction opposite to the
wheel's movement at the point of
snagging.
d. Use special care when working corners,
sharp edges etc. Avoid bouncing and
snagging the accessory. Corners, sharp
edges or bouncing have a tendency to
snag the rotating accessory and cause
loss of control or KICKbACK.
e. Do not attach a saw chain, woodcarving
blade, segmented diamond wheel with a
peripheral gap greater than 10 mm or
toothed saw blade. Such blades create
frequent KICKbACK and loss of control.
Cut-Off Machine Safety Warnings
incorrect operating
f. Do not "jam" the wheel or apply
excessive pressure. Do not attempt to
make an excessive depth of cut.
Overstressing the wheel increases the
loading and susceptibility to twisting or
binding of the wheel in the cut and the
possibility of KICKbACK or wheel
breakage.
g. When wheel is binding or when
interrupting a cut for any reason, switch
off the power tool and hold the power
tool motionless until the wheel comes to
a complete stop. Never attempt to
remove the wheel from the cut while the
wheel is in motion otherwise KICKBACK
may occur. Investigate and take
corrective action to eliminate the cause of
wheel binding.
h. Do not restart the cutting operation in
the workpiece. Let the wheel reach full
speed and carefully re-enter the cut. The
wheel may bind, walk up or KICKbACK if
the power tool is restarted in the
workpiece.
i. Support panels or any oversized
workpiece to minimize the risk of wheel
pinching
workpieces tend to sag under their own
weight. Supports must be placed under
the workpiece near the line of cut and
near the edge of the workpiece on both
sides of the wheel.
j. Use extra caution when making a
"pocket cut" into existing walls or other
blind areas. The protruding wheel may
cut gas or water pipes, electrical wiring or
objects that can cause KICKbACK.
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and KICKBACK. Large