FURTHER SAFETY INSTRUCTIONS
Causes and operator prevention of 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:
1. 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;
2. 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
workpiece causing the blade to climb out of
the kerf and jump back towards 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.
a) Maintain a firm grip with both hands
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.
b) If the blades are binding, or when
interrupting a cut for any reason, release
the trigger and hold the saw motionless
in the material until the blades come to
a complete stop.
Never attempt to remove
the saw from the work or pull the saw
backward while the blades are in motion or
kickback may occur. Investigate and take
corrective actions to eliminate the cause of
blade binding.
c) When restarting a saw in the workpiece,
centre 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.
d) Support large panels to minimise the
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.
e) Blade depth and bevel adjusting locking
levers must be tight and secure before
making a cut.
If the blade adjustment
shifts while cutting it may cause binding and
kickback.
f) Do not use dull or damaged blades.
Unsharpened or improperly set blades
produce a narrow kerf causing excessive
friction, blade binding and kickback.
g) Use extra caution when making a
“plunge cut” into existing walls or other
blind areas. The protruding blade may cut
objects that can cause kickback.
Safety instructions for saws
a) Check lower guard for proper closing
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.
b) Check the operation of the lower guard
spring.
If the guard and the spring are not
operating properly, they must be serviced
before use. Lower guard may operate
sluggishly due to damaged parts, gummy
deposits, or a build-up of debris.
c) Lower guard may be retracted manually
only for special cuts such as “plunge cuts”
and “compound cuts.”
Raise lower guard
by retracting handle and as soon as blade
enters the material, the lower guard must
be released. For all other sawing, the lower
guard should operate automatically.
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