Operation; Maintenance; Switching On And Off - GMC GMC1152G Original Instructions Manual

900w 115mm
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  • ENGLISH, page 1
Note: If using depressed centre discs, ensure that the depression is positioned towards the Inner Flange.
3. Screw the Outer Flange (15) onto the Spindle. The raised centre of the Outer Flange should face towards
the disc when installing a grinding disc, and away when installing a cutting disc
4. Depress the Spindle Lock Button (12) and rotate the Spindle until you feel the lock engage
5. You can now use the supplied Pin Spanner (17) to fully tighten the Outer Flange. When tight, release the
Spindle Lock Button. The grinder is now ready for use
6.
To remove a disc, depress the Spindle Lock Button, rotate the Spindle until you feel the lock engage, and
use the Pin Spanner to remove the Outer Flange
Fitting a wire cup brush
Note: When using the angle grinder with wire cup brushes, it may be beneficial to fit the grinding guard and
rotate beneath the Auxiliary Handle (7) purely for the benefit of protecting the operator's hand. This will depend
on the design of the wire cup brush and the operation being performed.
1. Remove Outer Flange (15), Disc (9) (if installed) and Inner Flange (16) from the Spindle (14)
2. Screw the wire cup brush directly onto Spindle
3. Depress the Spindle Lock Button (12) and rotate the Spindle until you feel the lock engage
4. Tighten the wire cup brush with a suitable spanner. Release the Spindle Lock Button. The machine is now
ready for use (Image D)
5. To remove a wire cup brush, depress the Spindle Lock Button, rotate the Spindle until you feel the lock
engage, then use a suitable spanner to remove the wire cup brush

Operation

Switching on and off

Note: Do not switch the machine on/off when the disc is in contact with the workpiece. Always allow the
motor to reach full speed before applying the load, and to stop completely before placing the grinder down.
Always hold the machine securely, using both hands, on the handles provided
WARNING: Switching off the angle grinder under load will significantly reduce the service life of the On/Off
Slider Switch (5).
1. To start the machine, grip the Main Handle (5) and Auxiliary Handle (7) firmly.
2. Push the On/Off Switch (4) forward and slightly downward until it locks in the '1' position
Note: As a safety feature, the sliding safety switch is spring-loaded so that it can return the switch to the off
position upon touch or impact.
3. Stop the machine by slightly pushing down on the bottom part of the slider switch. This will unlock the
mechanism and return the switch into the '0' position
Grinding
Use only discs specifically manufactured for grinding operations. Stone and metal grinding discs are not
interchangeable; use the correct disc for the application
When grinding, keep the tool at approximately 15-30° to the workpiece surface (Image E)
Note: Do not apply too much pressure to the machine whilst grinding. Excessive pressure does not result in
more effective removal of material, but will in fact cause premature wear of the grinding disc and increase
wear and tear on the machine.
Cutting
WARNING: Always ensure the correct guard (optional accessory) for use with cutting discs or superabrasive
wheels is installed.
Note: This machine is not designed for wet cutting.
Only use discs specifically manufactured for cutting operations. Stone and metal cutting discs are not
interchangeable, use the correct disc for your application
Never use cutting discs for grinding operations. The disc might shatter and produce projectiles that could
injure the operator and bystanders
When cutting, always keep the angle of the disc constant. Do not apply any sideways force to cutting
discs, as this might lead to the disc becoming jammed in the cut and shattering
WARNING: Do not apply too much pressure to the machine whilst cutting. Excessive pressure does not result
in more effective or faster cutting, but will in fact cause premature wear of the cutting disc and increase wear
and tear on the machine.
Note: The cutting disc will wear during use, and the disc diameter will gradually reduce in size. The smaller
the disc becomes, the more strain will be placed on the motor. To avoid damage to the machine, only use
cutting discs that are at least 75% of the original size.
Using a wire cup brush or wire wheel
Warning: Loose bristles within the wire cup brush can become projectiles when in motion. ALWAYS wear
suitable eye protection, adequate respiratory and hearing protection, as well as suitable gloves, when working
with this tool.
Always check that the no-load speed of the grinder does not exceed the maximum speed of the wire cup
brush or wire wheel
Ensure that no part of the wire cup brush or wire wheel can come into contact with the machine housing
Run the grinder, with wire cup brush or wire wheel attached, for at least 30 seconds before use to check
that the wire cup brush or wire wheel is secure, and properly balanced
When using a wire cup brush or wire wheel, avoid applying excess pressure. Using greater force will not
make the wire cup brush or wire wheel more effective, but will bend the wires out of shape and damage
the brush
Accessories
A wide range of compatible accessories, including the cutting wheel guard, grinding, cutting and flap
discs, diamond wheels, wire cups and more, is available from your GMC stockist . Spare parts can be
purchased from your GMC dealer or online at www.toolsparesonline.com

Maintenance

WARNING: Always remove the plug from the mains power supply before carrying out any maintenance/
cleaning.
This tool is manufactured using class leading components and makes use of the latest in intelligent
circuitry that protects the tool and its components. In normal use it should provide a long working life
Inspect the supply cord of the tool, prior to each use, for damage or wear. This advice also applies to
extension cords used with this tool
if the replacement of the supply cord is necessary, this has to be done by the manufacturer or his agent in
order to avoid a safety hazard
Cleaning
Keep the machine clean at all times. Dirt and dust will cause internal parts to wear quickly and will
shorten the machine's service life. Clean the body of your machine with a soft brush or dry cloth. If
available, use clean, dry, compressed air to blow through the ventilation holes
Brushes
Over time the carbon brushes inside the motor may become worn
Excessively worn brushes may cause loss of power, intermittent failure, or visible sparking
If you suspect that the brushes may be worn, have them replaced at an authorised GMC service centre
Storage
Store this tool and its accessories after use in its case, in a dry, secure place out of the reach of children
Disposal
Always adhere to national regulations when disposing of power tools that are no longer functional and are
not viable for repair.
Do not dispose of power tools, or other waste electrical and electronic equipment (WEEE), with household
waste
Contact your local waste disposal authority for information on the correct way to dispose of power tools
11
GB

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