Causes And Operator Prevention Of Kickback - Evolution EVOSAW185 Instructions D'origine

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g) Always use blades with correct size and
shape (diamond versus round) of arbor
holes. Blades that do not match the mounting
hardware of the saw will run eccentrically,
causing loss of control.
h) Never use damaged or incorrect blade
washers or bolt. The blade washers and
bolt were specially designed for your saw,
for optimum performance and safety of
operation.
i) Do not use High Speed Steel (HSS) saw
blades.
j) Inspect the machine and the blade before
each use. Do not use deformed, cracked,
worn, or otherwise damaged blades.
k) Never use the saw without the original
guard protection system. Do not lock the
moving guard in the open position. Ensure
that the guard operates freely without
jamming.
l) Only use blades that comply with the
characteristics specified in this manual.
Before using accessories, always compare the
maximum allowed RPM of the accessory with
the RPM of the machine.
CAUSES AND OPERATOR
(3.2)
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
during the cut, 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
(3.3)
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 blade is 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 blade is 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 in the
material. If the blade is binding, it may walk
up or kickback from the workpiece as the saw
is restarted.
d) Support large panels to minimize 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.
h) 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.
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