Specific Safety Instructions; Causes And Operator Prevention Of Kickback - NUTOOL MP185 Manual Del Usuario

GB

2 SPECIFIC SAFETY INSTRUCTIONS

Warning!
TWO HANDED OPERATION REQUIRED!
This machine requires the use of two hands to ensure safe
operation and should not be used when working from
ladders and step ladders.
If the machine is to be used when working at height a
suitable, stable platform or scaffold tower with hand rails
and kick boards should be used.
Caution!
Some wood and wood type products especially MDF
(Medium Density Fibreboard) can produce dust that can be
hazardous to your health. We recommend the use of an
approved face mask with replaceable filters when using this
machine in addition to using the dust extraction facility.
DANGER
a) Keep hands away from cutting area and blade. Keep
your second hand on auxiliary handle, or motor housing.
If both hands are holding the saw, they cannot be cut by
the blade.
b) Do not reach underneath the workpiece. The guard cannot
protect you from the blade below the workpiece.
c) Adjust the cutting depth to the thickness of the workpiece.
Less than a full tooth of the blade teeth should be visible
below the workpiece.
d) Never hold the piece being cut in your hands or across
your leg. Secure the workpiece to a stable platform. It
is important to support the work properly to minimize
body exposure, blade binding, or loss of control.
e) Hold the power tool by 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 power tool "live" and
shock the operator.
f) 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.
g) Always use blades with correct size and shape (diamond
versus round) of arbour 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.
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
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 the saw teeth are not
engaged into the material. if saw blade is binding, it may
walk up or kick back 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 a narrow kerf causing
excessive friction, blade binding and kickback.
f) Blade depth and bevel adjusting locking levers must be
tight and secure before making a 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 REGARDING LOWER
GUARD
a) 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, lower guard may be bent. Raise the lower
guard with the blade guard lever and make sure it moves
freely and does not touch the blade or any other part, in
all angles and depths of cut.
b) Check the operation of the lower guard spring. If the
guard and the spring are not operating properly, they
must be serviced before use. Lower guard may operate
sluggishly due to damaged parts, gummy deposits, or a
build-up of debris.
c) Lower guard should be retracted manually only for
special cuts such as "plunge cuts" and "compound cuts".
Raise
As soon as blade enters the material, the lower guard
must be released. For all other sawing tasks, the lower
guard should operate automatically.
d) Always observe that the lower guard is covering the
blade before placing the saw down on bench or floor.
An unprotected, coasting blade will cause the saw to
walk backward, cutting whatever is in its path.
Warning!
Be aware of the time it takes for the blade to stop
after the switch is released.
as given below.
16
lower guard by blade guard lever.