909 LS15CS Manual de instrucciones - Página 6
Navegue en línea o descargue pdf Manual de instrucciones para Sierra 909 LS15CS. 909 LS15CS 16 páginas. 15 amp dual laser circular saw with magnesium
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•
Check lower guard for proper closing before each use.
Do not operate the saw if the lower guard does not move
freely and close instantly. Never clamp or tie the lower
guard in the open position. If the saw is accidentally
dropped, the lower guard may be bent. Raise the lower
guard with the guard retraction lever and make sure it
moves freely and does not touch the blade or any other
part, in all angles and depths of cut.
•
Check the operation and condition of the lower guard
spring. If the guard and the spring are not operating
properly, they must be serviced before use. The lower
guard may operate sluggishly due to damaged parts,
gummy deposits, or a buildup of debris.
•
The lower guard should be retracted manually only for
special cuts such as "Pocket Cuts" and "Compound
Cuts". Raise the lower guard using the guard retraction
lever. As soon as the blade enters the material, the lower
guard must be released. For all other sawing tasks, the
lower guard should operate automatically.
•
Always check that the lower guard is covering the blade
before placing the saw down on a bench or the 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 the switch is
released.
•
NEVER
hold the piece being cut in your hands or across
your leg. It is important to support the work properly to
minimize body exposure, blade binding, or loss of control.
•
Hold the tool by the insulated gripping surfaces when
performing an operation where the cutting tool may
contact hidden wiring or its own cord. Contact with a "live"
wire will also make exposed metal parts of the tool "live"
and could cause an electric shock to the operator.
•
When ripping, always use a rip fence or straight edge
guide. This improves the accuracy of cut and reduces
the chance of the blade binding.
•
Always use blades of the correct size and shape
(diamond vs. round) arbour holes. Blades that do
not match the mounting hardware of the saw will run
eccentrically causing loss of control.
•
Never use damaged or incorrect blade washers or
bolts. The blade washers and bolt were specially
designed for your saw, for optimum performance
and safety of operation.
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.
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 operator.
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:
•
Maintain a firm grip with both hands on the saw and
position your body and arm to allow you to resist kickback
forces. Kickback forces can be controlled by the operator,
if proper precautions are taken.
•
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.
•
When restarting a saw in the workpiece, center the saw
blade in the kerf and check that the saw teeth are not
engaged into the material. If the saw blade is binding,
it may jump up or kick back from the workpiece as the
saw is restarted.
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