Craftsman 10872 Operation Manual - Page 19

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KICKBACK..WHAT CAUSES IT AND WAYS TO HELP PREVENT IT (Figs. 5, 5a and 5b) cont. The Causes of Kickback cont. 1+Kickback Is a sudden reaction to a pinched, bound or mtsaligned saw blade, which causes an uncontrolled saw to lift up and out of the workplace and toward the operator_ 2. When the blade is pinched or bound tightlyby the kerr cioslng down, the blade stalls and the motor reaction ddves the unit rapidly back towards the operator_ 3. If the blade becomes twisted or misaltgned in the cut, the teeth at the back edge of the btade can dig intothe top surface of the wood+This causes the blade to climb out of the kerf and Jumpback towards the operator, 4. Sawingintoknots or nails in the workplace can cause Kickback, 5, Sawing intowet or warped lumber can cause Kickback. 6, Forcing a cut, or not supporting the workplace correctlycan cause Kickback (see Fig°5a). 7. Kickback Isa result of tool misuse and/or incorrectoperatingprocedures or conditions. It can be avoided by taking the proper precautions, as listed below. Ways to Help Prevent Kickback 1.ALWAYS maintain a firm gdp with both hands on the saw (see Figs.5, 5b) and position yourbody and armsto allowyou to resistKickbackforces. Kickbackforces can be controlledby the operator,if the properprecautionsare taken. 2+Ifthe bladeis binding,or whenyou are interruptinga cut for anyreason,ALWAYS release the triggerand hold the saw motionless In the material until the blade comesto 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.CHECK and take corrective action to eliminatethe cause of blade binding. 3. Inspectthe workplece for knots or nails before cuttlng°Never saw into a knot or nail. 4+DO NOT cut warped or wet lumber+ 5+ALWAYSsupport large panels to mlnlmize the risk of blade pinching and Kickback, Large panels tend to sag under theirown weight (see Fig. 5a)°SupportsMUST be placed under the panel, one near the line of cut and one near the edge of the panel (see Fig.5a)° Rg. 5a Support Large Panels H I , lJ "o,+U u ,o°Ju 19

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KICKBACK..WHAT
CAUSES IT AND WAYS TO HELP PREVENT
IT
(Figs. 5, 5a and 5b) cont.
The Causes of Kickback cont.
1+Kickback Is a sudden reaction to a pinched, bound or mtsaligned
saw
blade,
which
causes an uncontrolled saw to lift up and out
of
the workplace and toward the operator_
2. When the blade
is
pinched or bound
tightly
by the kerr cioslng down, the blade stalls
and the motor reaction ddves the unit rapidly back towards the operator_
3. If the blade becomes twisted or misaltgned in the cut, the teeth at the back edge of the
btade can dig
into
the top surface of the wood+This causes the blade to climb out of
the kerf and Jumpback towards the
operator,
4.
Sawinginto
knots or nails
in
the workplace can
cause
Kickback,
5,
Sawing
into
wet or warped lumber can cause Kickback.
6, Forcing a cut, or not supporting the workplace
correctly
can cause Kickback
(see
Fig°5a).
7. Kickback
Is
a result of tool misuse and/or
incorrectoperating
procedures or conditions.
It can be avoided by taking the proper precautions, as listed below.
Ways to Help Prevent Kickback
1.
ALWAYS
maintain a firm gdp
with
both hands
on
the saw (see Figs.5, 5b)
andposition
your
body and
armsto allow
you
to resistKickback
forces.
Kickback
forces
can be
controlled
by
the operator,iftheproperprecautionsaretaken.
2+Ifthe bladeisbinding,or whenyou
are
interruptingacut
for
anyreason,ALWAYS
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.
CHECK
and take
corrective action to
eliminate
the cause of blade binding.
3.
Inspect
the workplece for knots or nails before cuttlng° Never saw into a knot or nail.
4+
DO
NOT cut warped or wet lumber+
5+
ALWAYS
support large panels to mlnlmize the risk of blade pinching and Kickback,
Large panels tend to sag under
their
own weight (see Fig. 5a)°
SupportsMUST
be
placed under the panel, one near the line of cut and one near the
edge
of the
panel (see
Fig.5a)°
Rg. 5a
Support Large Panels
I
,
H
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u
,o°Ju
19