Safety Warnings Specific For Grinding And Abrasive Cutting-Off Operations; Additional Safety Warnings Specific For Abrasive Cutting-Off Operations - Silverline Manual De Instrucciones

GB
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 an 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 the area where power tool will move if kickback occurs.
Kickback will propel the tool in the 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 or toothed saw blade. Such blades create
frequent kickback and loss of control.
Safety Warnings Specific for Grinding and Abrasive
Cutting-Off Operations
a) Use only wheel types that are recommended for your power tool and the specific guard
designed for the selected wheel. Wheels for which the power tool was not designed cannot be
adequately guarded and are unsafe.
b) The guard must be securely attached to the power tool and positioned for maximum
safety, so the least amount of wheel is exposed towards the operator. The guard helps to
protect the operator from broken wheel fragments, accidental contact with wheel, and sparks that
could ignite clothing.
c) Wheels must be used only for recommended applications. For example: do not grind with
the side of the cut-off wheel. Abrasive cut-off wheels are intended for peripheral grinding; side
forces applied to these wheels may cause them to shatter.
d) Always use undamaged wheel flanges that are of correct size and shape for your selected
wheel. Proper wheel flanges support the wheel, thus reducing the possibility of wheel breakage.
Flanges for cut-off wheels may be different from grinding wheel flanges.
e) Do not use worn down wheels from larger power tools. Wheels intended for larger power
tools are not suitable for the higher speed of a smaller tool and may burst.
Additional Safety Warnings Specific for Abrasive
Cutting-Off Operations
a) Do not 'jam' the cut-off 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.
b) Do not position your body in line with and behind the rotating wheel. When the wheel,
at the point of operation, is moving away from your body, the possible kickback may propel the
spinning wheel and the power tool directly at you.
c) When wheel is binding or when interrupting a cut for any reason, switch off the power
tool and hold the power tool motionless until the wheel comes to a complete stop. Never
attempt to remove the cut-off 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.
d) 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.
e) Support panels or any oversized workpiece to minimise 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
f) 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.
Safety Warnings Specific for Sanding Operations
a) Do not use excessively oversized sanding disc paper. Follow manufacturer's
recommendations, when selecting sanding paper. Larger sanding paper extending beyond
the sanding pad presents a laceration hazard and may cause snagging, tearing of the disc, or
kickback.
Safety Warnings Specific for Wire Brushing
Operations
a) Be aware that wire bristles are thrown by the brush even during ordinary operation. Do
not overstress the wires by applying excessive load to the brush. The wire bristles can easily
penetrate light clothing and/or skin.
b) If the use of the guard is recommended for wire brushing, do not allow any interference
of the wire wheel or brush with the guard. Wire wheel or brush may expand in diameter due
to work load and centrifugal forces.
6
Additional grinder safety
WARNING: When using straight and depressed centre cutting-off wheels (type 41 and
42) plus grinding wheels that grind on the edge only (type 1), a cutting guard or cut-off
guard must be fitted.
WARNING: DO NOT operate a grinder without the appropriate guards in place. Reset the
guard if the work angle or the position of the person operating the machine changes.
WARNING: Always check for an expiry date of the grinding or cutting disc before use
(remove from tool if necessary). This will be either printed on the label or stamped on the inner
steel ring of the disc. DO NOT use an expired disc as it may shatter in use.
• The grinding surface of the centre depressed wheels must be mounted below the plane of the
guard lip. An improperly mounted wheel that projects through the plane of the guard lip cannot
be adequately protected
• Do not touch grinding or cutting discs after use until they have cooled down
• Reset the on/off switch of the tool to the 'off' position whenever the power is interrupted
• The machine can be subject to overload if too much application force is exerted. Overload can
lead to overheating and damage of the power tool. After use, continue to run the tool at no-load
for several minutes in order to cool it down by using the fan of the motor
• When operating the grinder, it is an essential safety requirement that the correct type of guard
is installed for each application to prevent injury. For example, a cutting guard must be installed
when using a cutting or diamond disc, and a grinding guard must be used with grinding discs
• Grinding tool accessories must be mounted, used and stored in compliance with the
manufacturer's recommendations
• Use the correct type of cutting or grinding disc for the task and material. Check the label on the
disc or accessory to find out if it is appropriate to use on the workpiece
• If discs are supplied with blotters they must be fitted and used correctly. Not fitting blotters may
cause the disc to shatter in use and be a safety risk
• Ensure the cutting/grinding disc or accessory is fitted correctly and securely before use. Run
the machine with the disc or accessory fitted, but without load, for a reasonable time before
attempting to cut/grind. If excessive vibration occurs, stop the machine, investigate and correct
the cause before use. Seek professional guidance if you are in doubt about how to operate the
machine safely
• Do not allow discs to become wet or contaminated with oil. If you suspect a disc has degraded in
storage, or if you are unsure whether its expiry date has passed, DO NOT USE AND DISCARD
• Do not attempt to cut or grind magnesium or any alloy that has high magnesium content
• Hold the machine appropriately to ensure that debris produced does not land on skin or clothing
• Do not touch the spindle lock button while the tool is operating
• A grinding disc will gradually wear down during use, reducing its size. If a disc becomes too
small to work with easily, stop using it and replace it with a new disc
Additional safety for super abrasives
• Superabrasives are generally inflexible and could shatter, so must be handled with the
utmost care. Damaged or improperly mounted superabrasives are dangerous and can cause
SEVERE injury to the user and other people in the vicinity
• Types of superabrasive wheels include diamond cutting discs, welded metal discs, CBN
discs etc. Choose your superabrasive tool carefully, taking into consideration the workpiece
material, the machine dimensions and capabilities. Make sure the machine does not exceed the
maximum operating speed of the superabrasive disc
• NEVER use superabrasive cutting discs for side grinding, as this might lead to the disc
shattering
• Superabrasive wheels have to be carefully inspected and tested before mounting. Metal
wheels should be subjected to a sound test: hold the wheel on a mandrel or with a finger inserted
through the bore, then tap it with a non-metallic object at several points and listen each time
to the sound produced. An intact wheel will produce a clear 'bell like' metallic sound. Damaged
wheels will give a dull, chattering sound. If in doubt, DO NOT USE, MARK AS DAMAGED AND
DISCARD
• Make sure the machine's mounting flange is compatible with the superabrasive wheel.
Refer to the manufacturer's mounting instructions
• ALWAYS conduct a test run after mounting, with no load for at least 30 seconds, to
determine if the wheel runs balanced and does not produce excessive vibration. If it does,
switch off IMMEDIATELY, remove the disc, inspect, re-mount and re-test if no damage is detected
• If planning on using the superabrasive wheel with a coolant, liquid dust suppressant or
lubricant, first check if the wheel, machine and workpiece are compatible with wet cutting
and with the compound to be used. Always apply liquid to an already running wheel, never
to a non-moving tool, as the unbalance could lead to the rupture of the wheel. When switching
off, remove the liquid supply first and let the machine run at no-load, until centrifugal forces
have drained all liquid from the wheel. Dry off the wheel after use, and prevent liquid from being
absorbed into the wheel
Avoiding angle grinder burnout
Note: grinders are designed to work under load. Provided the motor is cooled quickly, minimal wear
or damage will occur.
• DO NOT over work the angle grinder.
• If the grinder emits a burning smell, DO NOT stop the grinder; instead, remove from load and
allow to spin freely for approximately 5-10 seconds at high speed to cool the motor before
continuing work.