Product Familiarisation; Intended Use; Unpacking Your Tool; Before Use - GMC GMC1152G Instrucciones Originales

e) 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.
f) The arbor size of wheels, flanges, backing pads or any other accessory must properly fit on the
spindle of your power tool. Accessories with arbor 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.
g) Do not use a damaged accessory. Before each use inspect the accessory such as abrasive
wheels for chips and cracks, backing pad for cracks, tear or excess wear, wire brush, wire,
wire brush for loose or cracked wires. If power tool or accessory is dropped, inspect for damage
or install an undamaged accessory. After inspecting and installing an accessory, position
yourself and bystanders away from the plane of the rotating accessory and run the power tool at
maximum no-load speed for one minute. Damaged accessories will normally break apart during this
test time.
h) Wear personal protective equipment. Depending on application, use faceshield, safety goggles
or safety glasses. As appropriate, wear dust mask, hearing protectors, gloves and workshop
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apron capable of stopping small abrasive or workpiece fragments. Eye protection must be capable
of stopping flying debris generated by various operations. The dust mask or respirator must be capable of
filtrating particles generated by your operation. Prolonged exposure to high intensity noise may cause
hearing loss.
i) Keep bystanders a safe distance away from the work area. Anyone entering the work area must
wear personal protective equipment. Fragments of workpiece or of a broken accessory may fly away
and cause injury beyond immediate area of operation.
j) Hold the power tool by insulated gripping surfaces only, when performing an operation where the
cutting accessory may contact hidden wiring or its own cord. Cutting accessory contacting a 'live'
wire may make exposed metal parts of the power tool 'live' and could give the operator an electric shock.
k) Position the cord clear of the spinning accessory. If you lose control, the cord may be cut or snagged
and your hand or arm may be pulled into the spinning accessory.
l) Never lay the power tool down until the accessory has come to a complete stop. The spinning
accessory may grab the surface and pull the power tool out of your control.
m) Do not run the power tool while carrying it to your side. Accidental contact with the spinning
accessory may snag clothing, pulling the accessory towards your body.
n) Regularly clean the power tool's vents. The motor's fan will draw the dust inside the housing and
excessive accumulation of powdered metal may cause electrical hazards.
o) Do not operate the power tool near flammable materials. Sparks could ignite these materials.
p) Do not use accessories that require liquid coolants. Using water or other liquid coolants may result in
electrocution or shock.
Kickback and Related Warnings
Kickback is a sudden reaction to a pinched or snagged rotating wheel, backing pad, brush or any other
accessory. Pinching or snagging causes rapid stalling of the rotating accessory which in turn causes the
uncontrolled power tool to be forced in the direction opposite of the accessory'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 towards 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.
Maintain a firm grip on the power tool and position your body an arm to allow you to resist
a)
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.
When wheel is binding or when interrupting a cut for any reason, switch off the power tool and
c)
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
Be aware that wire bristles are thrown by the brush even during ordinary operation. Do not
a)
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.
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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 tool 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 tool 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
tool with the disc or accessory fitted, but without load, for a reasonable time before attempting to cut/
grind. If excessive vibration occurs, stop the tool, investigate and correct the cause before use. Seek
professional guidance if you are in doubt about how to operate the tool 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 tool 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 tool
dimensions and capabilities. Make sure the tool 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 tool'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, tool 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 tool 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.
• Repeat the removal of the grinder from load intermittently to keep the tool cool during use.
If a grinder is slowing down on sticky material whilst under load:
1. Check the correct grinding wheel type is being used.
2. Make shallower passes across the material.

Product Familiarisation

1. Threaded Auxiliary Handle Hole
2. ON/OFF Switch
3. Main Handle
4. Motor Vents
5. Auxiliary Handle
6. Grinding Guard
7. Cutting Disc (not supplied)
8. Quick Release Guard Clamp
9. Directional Indicator
10. Spindle Lock Button
11. Spindle
12. Outer Flange
13. Inner Flange
14. Pin Spanner
15. Cutting Guard

Intended Use

Angle grinder suitable for light to medium duty grinding of metal and other materials with a fitted disc of the
correct type. Suitable for cutting various materials when fitted with the supplied cutting guard. Also suitable
for wire brushing and sanding applications with the use of compatible accessories

Unpacking Your Tool

• Carefully unpack and inspect your tool. Fully familiarise yourself with all its features and functions
• Ensure that all parts of the tool are present and in good condition. If any parts are missing or damaged,
have such parts replaced before attempting to use this tool

Before Use

WARNING: Ensure the tool is disconnected from the power supply before attaching or changing any
accessories, or making any adjustments.
WARNING: Never fit any attachment with a maximum speed lower than the no load speed of the tool.
Note: All discs and accessories must be subjected to a visual inspection prior to installation, to ensure they
are in good condition and within their expiry date. If in doubt, DO NOT USE AND DISCARD
Always check all parts and attachments are secure, and that rotating parts will not foul on guards or the tool
case
• Always hold the tool, using both hands, by the handles provided
• Be aware that the cast metal gear housing may get hot during use
• Hot air will be emitted from the ventilation holes
• Ensure that the ventilation holes are not obscured in any way
• Always wear appropriate personal protective equipment for the task. Use of this tool requires ear
defenders, eye protection, gloves, breathing protection, and, if appropriate, a hard hat
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