GMC GBS850 Manual De Uso página 8

Operation
WARNING: ALWAYS wear eye protection, adequate respiratory and hearing protection,
as well as suitable gloves, when working with this tool.
Switching on and off
• To start the tool, squeeze the On/Off Trigger (9). To stop the tool, release the On/Off
Trigger
• For extended continuous use, the On/Off Trigger can be locked in the 'on' position:
1. Squeeze the On/Off Trigger and depress the Lock On Button (3); the machine will continue
to run when the On/Off Trigger is released
2. To stop the machine, squeeze and release the On/Off Trigger
GB
Sanding
Note: Always clean the tool THOROUGHLY when switching from sanding wood to sanding
metal and vice versa.
• Before sanding, ensure the workpiece is adequately secured. Use clamps as necessary
and always keep both hands on the machine
• To achieve a high quality finish efficiently, start with a coarse grade of sanding belt and
work through to finer grades until the desired finish is achieved
• Before connecting the machine to the power supply, check the On/Off Trigger (9) is in the
off position, and the sanding belt is properly fitted
1. Connect the sander to the power supply
2. Raise the sander off the work surface and switch on. Squeeze the On/Off Trigger and
allow the sander to reach its full operating speed
3. Keeping a secure hold of the machine, lower the sander onto the work surface. Avoid
unnecessary damage to the work surface by keeping the movement direction of the
sanding belt parallel with the natural grain of the wood
4. Move the sander slowly across the surface of the workpiece until the desired amount of
material has been removed
• Always lift the sander away from the surface of the workpiece before stopping the motor
• Ensure the motor has come to a complete stop before placing the machine down
• Always disconnect the machine from the power supply before leaving it unattended
Bench-mounted use
• The sander can be inverted for bench-mounted use when combined with the Inversion
Adaptor (16) and Inversion Clamps (15)
1. Place the sander on a secure flat surface, such as a workbench
2. Centre the Inversion Adaptor on the Front Handle (2), and turn the sander upside down so
it is resting on the Inversion Adaptor (Image A)
3. Clamp the sander to the work surface by locating the Inversion Clamps in the fastening
holes of the sander, whilst positioning the plastic grips beneath the table surface (Image B)
4. Fasten the wing nuts on the Inversion Clamps to fix the sander securely to the surface
Emptying the dust bag
WARNING: Always switch off and disconnect from the power supply before detaching the
dust extraction system.
1. Remove the Dust Bag by gripping the neck and pulling the bag away from the Dust
Extraction Port (6)
2. Open the bag, empty and refit (see 'Connecting the dust extraction system')
Note: If the sanding dust contains harmful substances, such as particles from old paint,
varnish, surface coatings etc, always dispose of according to laws and regulations.
WARNING: For optimum dust removal, empty the dust bag when it is no more than two-thirds
full.
Accessories
• A range of accessories and consumables, including sanding belts, sanding belt cleaning
blocks and dust masks is available from your GMC stockist. Spare parts can be obtained
from toolsparesonline.com
Maintenance
WARNING: ALWAYS disconnect from the power supply before carrying out any
inspection, maintenance or cleaning.
General inspection
• Regularly check that all the fixing screws are tight
• Inspect the supply cord of the tool, prior to each use, for damage or wear. Repairs should
be carried out by an authorised GMC service centre. This advice also applies to extension
cords used with this tool
Cleaning
• Keep your tool clean at all times. Dirt and dust will cause internal parts to wear quickly, and
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
• Clean the tool casing with a soft damp cloth using a mild detergent. Do not use alcohol,
petrol or strong cleaning agents
• Never use caustic agents to clean plastic parts
Lubrication
• Slightly lubricate all moving parts at regular intervals with a suitable spray lubricant
• 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 carefully in a secure, dry 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
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