Walter LT63006S Notice D'utilisation page 34

Causes and operator prevention of kickback:
- Kickback is a sudden reaction to a jammed, bound or incorrectly adjusted saw blade,
which causes the saw to lift uncontrollably out of the cut towards the operator.
- If the saw blade is caught or jammed in the cut, the blade stalls and the power of the
motor drives the unit rapidly back towards 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 caused by misuse or incorrect operation of the tool. Kickback can be
avoided by taking appropriate precautions, as described below:
a. Hold the saw firmly with both hands and position your arms so that you
can resist kickback forces. Always stand to one side of the saw blade, never
stand with your body in line with the saw blade. Kickback could cause the saw
to jump backwards, but kickback can be controlled by the operator, if proper
precautions are taken.
b. When blade is binding, or when 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 try to remove the saw blade from the cut or to pull
it backwards when the saw blade is still rotating or when kickback may occur.
Investigate and take corrective action to eliminate the cause of wheel binding.
c. When restarting a saw in a workpiece, centre the saw blade in the cut and
ensure that the saw blade teeth are not engaged in the wood. If the saw
teeth are engaged in the wood, the saw can be forced out of the cut or kickback
can occur when the saw is restarted.
d. Large boards should be supported in order to reduce the risk of kickback
caused by a jammed saw blade. Large boards tend to bend under their own
weight. Boards must be supported on both sides of the cut, both at the edges of
the board and in the area of the cut.
e. Never use blunt or damaged saw blades. Saw blades with blunt or improperly
set teeth produce a narrow cut which leads to excessive friction, blade jamming
and kickback.
f. Cutting depth and angle adjustment mechanisms must be tight and
secure before starting the cut. The saw blade can jam causing kickback if the
depth and angle adjustment mechanisms move during operation.
g. Use extra caution when making a "plunge cut" into existing walls or other
blind areas. The saw blade blade cut into hidden objects which cause kickback.
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