Operation; Accessories; Maintenance; Storage - GMC GOMT12 Manual Del Usuario

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6. Select the required sanding sheet for your intended task (see 'Selecting the right
grade of sanding sheet' below)
7. The Sanding Pad and sanding sheets use a hook and loop system for attachment. To
mount the sheet carefully line up one corner of the sheet with a corner of the Sanding
Pad and gradually push the rest of the sheet on to the pad, checking alignment as
you do so, until the sheet is fitted correctly (see Fig. D)
Selecting the right grade of sanding sheet
Sanding sheets are available in a variety of different grades: coarse (60 grit), medium
(120 grit) and fine (240 grit)
Use a coarse grit to sand down rough finishes, medium grit to smooth the work, and fine
grit to finish off
Always use good quality sanding sheets to maximise the quality of the finished task
It is advisable to do a trial run on a scrap piece of material to determine the optimum
grades of sandpaper for a particular job. If there are still marks on your work after
sanding, try either going back to a coarser grade and sanding the marks out before
recommencing with the original choice of grit, or try using a new piece of sandpaper to
eliminate the unwanted marks before going on to a finer grit and finishing the job

Operation

WARNING: ALWAYS wear adequate personal protection equipment, including eye, hearing
and respiratory protection, when working with this tool.
WARNING: Anti-vibration gloves should be worn when operating this tool, to protect users
from the effects of vibration produced by the tool.
WARNING: DO NOT inhale dust. Wear adequate breathing protection. Some dusts may be
toxic especially from man-made composite materials.
Switching on and off
1. Hold the tool firmly by the Hand Grip (5), with the thumb over the On/Off Switch (3)
2. Slide the On/Off Switch forward until it locks, to switch the tool on
3. Slide the On/Off Switch back, to switch the tool off
WARNING: Allow the tool to reach the required speed before making contact with the
workpiece.
WARNING: Motor vents allow heat generated from the motor to escape the body of the
tool and must not become blocked. Dust, wood chippings and swarf can block the motor
vents and cause the tool to shut down. Swarf, created when cutting metal, can also cause
permanent damage if it enters the tool. Do not allow dust, wood chippings and swarf to build
up. Use a vacuum cleaner to keep the work space clean, especially in confined areas, and
when working with harmful substances.
WARNING: If the power tool gets excessively hot in use, stop using the tool immediately and
allow to cool before continuing work. The cooling period can be reduced by operating the
Multi-Tool at maximum speed with no load. Always make sure the Motor Vents (8) are not
blocked and do not allow dust to enter the body of the tool through the Motor Vents; dust,
especially metallic dust, may damage or destroy the tool.
Adjusting the tool speed
The oscillating speed of this multi-tool can be adjusted over the Variable Speed Dial (4)
1. Turn the Variable Speed Dial to a higher setting, to increase tool speed
2. Turn the Variable Speed Dial to a lower setting, to decrease tool speed
Note: Adjust tool speed to best suit the work carried out, and to adapt to material
requirements. Also refer to the accessory manufacturer's instructions, with regards to tool
speed selection.
Sawing
Ensure the saw blade is sharp and in good condition
Do not use saw blades that are damaged or deformed in any way
When sawing light building materials, follow the recommendations of the material
suppliers
Apply plunge cuts to soft materials ONLY, for example wood, plasterboard etc.
If using saw blades not designed for cutting metal, ensure there are no nails or screws
embedded in the workpiece. If necessary, remove embedded objects or use metal cutting
saw blades instead
Sanding
The removal rate and the sanding pattern are determined by the type of sanding sheet,
the preset oscillation rate and the applied pressure
Pay particular attention to applying uniform sanding pressure; this increases the working
life of the sanding sheets
Intensifying the sanding pressure will not lead to an increase of the sanding capacity, but
to increased wear of the machine and premature wear of the sanding sheet
For precise on-the-spot sanding of edges, corners and hard-to-reach areas, it is also
possible to work only with the tip or an edge of the sanding plate
A sanding sheet that has been used for sanding metal should not be used for sanding
other materials
Regularly brush down or vacuum the surface being sanded to ensure the sanding sheet is
in direct contact with the surface
Scraping
For scraping, select a high speed setting
On soft surfaces (e.g. wood), work at a flat angle and apply only light pressure so that the
scraper does not cut into the surface

Accessories

A full range of oscillating multi-tool accessories, including different saw blades, scrapers,
grinding and sanding accessories is available from your GMC stockist

Maintenance

WARNING: ALWAYS disconnect from the mains power supply, before carrying out
any maintenance/cleaning of the charger. Remove the battery before carrying out any
maintenance/cleaning of the Multi-Tool.
Note: Both the Oscillating Multi-Tool and the charger contain no user-serviceable parts. If the
device does not perform as outlined in this manual, return it to an authorised GMC service
centre for repair.
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

Storage

Store this tool carefully in a secure, dry place out of the reach of children
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