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SKU 95004
Causes and Operator prevention of
9.
Kickback:
Kickback is a sudden reaction to a
•
pinched, bound or misaligned saw
blade, causing an uncontrolled saw to
lift up and out of the workpiece toward
the operator;
When the blade is pinched or bound
•
tightly by the kerf closing down, the
blade stalls and the motor reaction
drives the unit rapidly back toward the
operator;
If the blade becomes twisted or
•
misaligned in the cut, the teeth at the
back edge of the blade can dig into the
top surface of the wood causing the
blade to climb out of the kerf and jump
back toward the operator.
Kickback is the result of saw misuse
and/or incorrect operating procedures or
conditions and can be avoided by taking
proper precautions as given below:
Maintain a firm grip with both hands
a.
on the saw and position your arms
to resist kickback forces. position
your body to either side of the
blade, but not in line with the blade.
Kickback could cause the saw to jump
backwards, but kickback forces can
be controlled by the operator, if proper
precautions are taken.
When blade is binding, or when
b.
interrupting a cut for any reason,
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.
Investigate and take corrective actions
to eliminate the cause of blade binding.
When restarting a saw in the
c.
workpiece, center the saw blade in
the kerf and check that saw teeth
are not engaged into the material.
If
saw blade is binding, it may walk up or
kickback from the workpiece as the saw
is restarted.
Support large panels to minimize the
d.
risk of blade 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.
do not use dull or damaged blades.
e.
Unsharpened or improperly set blades
produce narrow kerf causing excessive
friction, blade binding and kickback.
Blade depth and bevel adjusting
f.
locking levers must be tight and
secure before making cut.
If blade
adjustment shifts while cutting, it may
cause binding and kickback.
Use extra caution when making a
g.
″plunge cut″ into existing walls or
other blind areas.
The protruding
blade may cut objects that can cause
kickback.
Check lower guard for proper closing
10.
before each use. do not operate the
saw if lower guard does not move
freely and close instantly. never
clamp or tie the lower guard into the
open position.
If saw is accidentally
dropped, lower guard may be bent.
Raise the lower guard with the retracting
handle and make sure it moves freely
and does not touch the blade or any
other part, in all angles and depths of
cut.
Check the operation of the lower
11.
guard spring. If the guard and the
spring are not operating properly,
they must be serviced before use.
Lower guard may operate sluggishly due
