Makita 4131 Manual De Instrucciones página 6

Kickback is the result of tool 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
tool 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 tool to jump backwards, but kick-
back 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 tool motionless in the material until
the blade comes to a complete stop. Never
attempt to remove the tool from the work or
pull the tool 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 tool in the workpiece, cen-
tre 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 tool 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.
To avoid kickback, do support board or panel
near the cut.
Do not support board or panel away from the cut.
e. Do not use dull or damaged blades. Unsharp-
ened 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.
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10. Check lower guard for proper closing before
each use. Do not operate the tool if lower guard
does not move freely and close instantly. Never
clamp or tie the lower guard into the open posi-
tion. If tool is accidentally dropped, lower guard may
be bent. Raise the lower guard with the retracting
lever and make sure it moves freely and does not
touch the blade or any other part, in all angles and
depths of cut.
11. Check the operation of the lower guard spring. If
the guard and the spring are not operating prop-
erly, they must be serviced before use. Lower
guard may operate sluggishly due to damaged
parts, gummy deposits, or a build-up of debris.
12. Always observe that the lower guard is covering
the blade before placing tool down on bench or
floor. An unprotected, coasting blade will cause the
tool 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.
13. Do not stop the blades by lateral pressure on the
saw blade.
14. DANGER:
Don't attempt to remove cut material when blade
is moving.
CAUTION: Blades coast after turn off.
15. Place the wider portion of the saw base on that
part of the workpiece which is solidly supported,
not on the section that will fall off when the cut is
made.
As example, Fig. A illustrates the RIGHT way to
cut off the end of a board, and Fig. B the WRONG
way. If the workpiece is short or small, clamp it
down. DON'T TRY TO HOLD SHORT PIECES BY
HAND! (Fig. B)
Fig. A
Fig. B