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b) For threaded abrasive cones and plugs use only undamaged
wheel mandrels with an unrelieved shoulder flange that
are of correct size and length.
Proper mandrels will reduce the
possibility of breakage.
c) Do not “jam” a cut-off 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
snagging of the wheel in the cut and the possibility of kickback or
wheel breakage.
d) Do not position your hand in line with and behind the
rotating wheel.
When the wheel, at the point of operation, is
moving away from your hand, the possible kickback may propel the
spinning wheel and the power tool directly at you.
e) When wheel is pinched, snagged 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 cut-off 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 pinching or snagging.
f) 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.
g) Support panels or any oversized workpiece to minimize the
risk of wheel pinching and kickback.
Large 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.
h)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.