Worx HandyCut WX424.2, Safety And Operating Manual

Page: 4 / 24

Mini multi-function saw
4
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.
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) 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 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 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) Do not use dull or damaged blades.
Unsharpened or improperly set blades
produce narrow kerf causing excessive
friction, blade binding and kickback.
f) blade depth and bevel adjusting
locking levers must be tight and
secure before making cut.
If blade
adjustment shifts while cutting, it may
cause 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 PLUNGE
TYPE SAW
GUARD FUNCTION
a) Check guard for proper closing before
each use. Do not operate the saw
if guard does not move freely and
enclose the blade instantly. Never
clamp or tie the guard with the blade
exposed.
If saw is accidentally dropped,
guard may be bent. Check to make sure
that guard moves freely and does not touch
the blade or any other part, in all angles
and depths of cut.
b) Check the operation and condition of
the guard return spring. If the guard
and the spring are not operating
properly, they must be serviced
before use.
Guard may operate sluggishly
due to damaged parts, gummy deposits, or
a build-up of debris.
c) Assure that the base plate of the saw
will not shift while performing the
“plunge cut” when the blade bevel
setting is not at 90°.
Blade shifting
sideways will cause binding and likely kick
back.
d) Always observe that the guard is
covering the blade before placing saw
down on bench or floor.
An unprotected,
coasting blade will cause the saw to walk
backwards, cutting whatever is in its path.
Be aware of the time it takes for the blade
to stop after switch is released.
ADDITIONAL SAFETY RULES FOR
CIRCULAR SAW
1. Always wear a dust mask, hearing
protection and eye protection.
2. Only use saw blades recommended in the
specification.