Dexter 20VMPS2-85.1 Manual Del Usuario página 119

d) Always observe that the guard is covering the blade before placing the 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 the switch
is released.
KICKBACK AND RELATED WARNINGS FOR ABRASIVE CUTTING-OFF OPERATIONS
Kickback is a sudden reaction to a pinched or snagged rotating wheel. Pinching or snagging causes rapid stalling of the rotating wheel which in turn
causes the uncontrolled power tool to be forced in the direction opposite of the wheel's rotation at the point of the binding.
For example, if an abrasive wheel is snagged or pinched by the workpiece, the edge of the wheel that is entering into the pinch point can dig into
the surface of the material causing the wheel to climb out or kick out. The wheel may either jump toward or away from the operator, depending on
direction of the wheel's movement at the point of pinching. Abrasive wheels may also break under these conditions.
Kickback is the result of power 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 on the power tool and position your body and arm to allow you to resist kickback forces. Always use auxiliary
handle, if provided, for maximum control over kickback or torque reaction during start-up. The operator can control torque reactions or
kickback forces, if proper precautions are taken.
b) Never place your hand near the rotating accessory. Accessory may kickback over your hand.
c) Do not position your body in line with the rotating wheel. Kickback will propel the tool in direction opposite to the wheel's movement at the
point of snagging.
d) Use special care when working corners, sharp edges etc. Avoid bouncing and snagging the accessory. Corners, sharp edges or bouncing
have a tendency to snag the rotating accessory and cause loss of control or kickback.
e) Do not attach a saw chain, woodcarving blade, segmented diamond wheel with a peripheral gap greater than 10 mm or toothed
saw blade. Such blades create frequent kickback and loss of control.
f) Do not "jam" the wheel or apply excessive pressure. Do not attempt to make an excessive depth of cut. Overstressing the wheel
increases the loading and susceptibility to twisting or binding of the wheel in the cut and the possibility of kickback or wheel breakage.
until the wheel comes to a complete stop. Never attempt to remove the wheel from the cut while the wheel is in motion otherwise
kickback may occur. Investigate and take corrective action to eliminate the cause of wheel binding.
h) Do not restart the cutting operation in the workpiece. Let the wheel reach full speed and carefully re-enter the cut. The wheel may
bind, walk up or kickback if the power tool is restarted in the workpiece.
i) Support panels or any oversized workpiece to minimize the risk of wheel pinching and kickback. Large workpieces tend to sag under their
own weight. Supports must be placed under the workpiece near the line of cut and near the edge of the workpiece on both sides of the
wheel.
j) Use extra caution when making a "pocket cut" into existing walls or other blind areas. The protruding wheel may cut gas or water pipes,
electrical wiring or objects that can cause kickback.
3. ADDITIONAL SAFETY WARNINGS
CUT-OFF MACHINE SAFETY WARNINGS
a) The guard provided with the tool must be securely attached to the power tool and positioned for maximum safety, so
the least amount of wheel is exposed towards the operator. Position yourself and bystanders away from the plane of the
rotating wheel. The guard helps to protect operator from broken wheel fragments and accidental contact with wheel.
b) Use only bonded reinforced or diamond cut-
power tool, it does not assure safe operation.
c) The rated speed of the accessory must be at least equal to the maximum speed marked on the power tool. Accessories running
faster than their rated speed can break and fly apart.
d) Wheels must be used only for recommended applications. For example: do not grind with the side of cut-
cut-o wheels are intended for peripheral grinding, side forces applied to these wheels may cause them to shatter.
e) Always use undamaged wheel flanges that are of correct diameter for your selected wheel. Proper wheel flanges support the
wheel thus reducing the possibility of wheel breakage.
g) The outside diameter and the thickness of your accessory must be within the capacity rating of your power tool. Incorrectly
sized accessories cannot be adequately guarded or controlled.
h) The arbour size of wheels and flanges must properly fit the spindle of the power tool. Wheels and flanges with arbour holes that
do not match the mounting hardware of the power tool will run out of balance, vibrate excessively and may cause loss of control.
i) Do not use damaged wheels. Before each use, inspect the wheels for chips and cracks. If power tool or wheel is dropped,
inspect for damage or install an undamaged wheel. After inspecting and installing the wheel, position yourself and
bystanders away from the plane of the rotating wheel and run the power tool at maximum no load speed for one minute.
Damaged wheels will normally break apart during this test time.
j) Wear personal protective equipment. Depending on application, use face shield, safety goggles or safety glasses. As
appropriate, wear dust mask, hearing protectors, gloves and shop apron capable of stopping small abrasive or workpiece
for your power tool. Just because an accessory can be attached to your
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l. Abrasive