Product Familiarisation; Intended Use; Unpacking Your Tool; Before Use - GMC OS187CF Original Instructions Manual

g. The dust produced when sanding lead-based paints is particularly hazardous to children,
pregnant women, and people with high blood pressure. DO NOT allow these people near
to the work area, even if wearing appropriate personal protective equipment
h. Whenever possible, use a vacuum dust extraction system to control dust and waste
i. Be especially careful when using a machine for both wood and metal sanding. Sparks from
metal can easily ignite wood dust. ALWAYS clean your machine thoroughly to reduce the
risk of fire
j. Empty the dust bag or container (where applicable) frequently during use, before taking
breaks and after completion of sanding. Dust may be an explosion hazard. DO NOT throw
sanding dust into an open fire. Spontaneous combustion may occur when oil or water
particles come into contact with dust particles. Dispose of waste materials carefully and in
accordance with local laws and regulations.
k. Work surfaces and sandpaper can become very hot during use. If there is evidence of
burning (smoke or ash), from the work surface, stop and allow the material to cool. DO
NOT touch work surface or sandpaper until they have had time to cool
l. DO NOT touch the moving sandpaper
m. ALWAYS switch off before you put the sander down
n. DO NOT use for wet sanding. Liquids entering the motor housing can cause severe electric
shocks
o. ALWAYS unplug the sander from the mains power supply before changing or replacing
sandpaper
p. Even when this tool is used as prescribed it is not possible to eliminate all residual risk
factors. If you are in any doubt as to safe use of this tool, do not use it

Product Familiarisation

1. Front Handle
2. Removable Side Clips (x 2) (for carbon brush access)
3. On/Off Switch
4. Main Handle
5. Power Indicator
6. Dust Canister
7. Dust Extraction Port
8. Sanding Base
9. Sanding Sheet Clamp
10. Sanding Sheet Hole Punch
11. Dust Extraction Adaptor piece
12. Dust Bag
Accessories (not shown):
• 1 x Spare carbon brushes
• Miscellaneous sanding sheets

Intended Use

• Mains-powered orbital sander using both hook and loop and conventional 1/3 sheet (93
x 190mm) sanding sheets, suitable for medium-duty sanding tasks on wood, plastic and
painted surfaces.

Unpacking Your Tool

• Carefully unpack and inspect your new tool. 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

.
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
Fitting a sanding sheet
WARNING: Always ensure that the tool is switched off and the plug is removed from the
power point before fitting or removing sanding sheets.
Note: Do not continue to use worn, torn or heavily clogged sanding sheets. Ensure foreign
objects, such as nails and screws, are removed from the workpiece before starting to sand.
WARNING: Do not use a sanding sheet on wood that has previously been used on metal.
This may cause scouring on the wooden surface.
• This sander can be used with both hook and loop and conventional 1/3 sheet (93 x
190mm) sanding sheets
Fitting a hook and loop sanding sheet
1. Remove any dust or debris from the Sanding Base (8), before fitting a sanding sheet
2. Match the holes in a suitable sheet with the holes in the base
3. Simply press the sheet to the base to attach it (Image A)
4. To remove the sheet, peel it away from the base (Image A)
Note: To maximise the life of the Sanding Base, peel the sanding sheet off slowly rather than
rapidly removing it to avoid damage to the hook and loop system.
WARNING: Take care to regularly clean out the build-up of dust on the Sanding Base
underneath the sanding sheet and not to let the sheet wear completely down before replacing
it. Failure to observe these two precautionary measures can lead to damage to the hooks and
loops on the Sanding Base, and the sanding sheet will not attach properly.
Fitting conventional sanding sheets
1. Release the Sanding Sheet Clamp (9) from both sides of the sander
2. Insert the end of the sandpaper under one clamp, pull the sheet over the Sanding Base (8)
tightly, ensuring the holes align with those in the base, and close the Sanding Sheet Clamp
3. Repeat with the Sanding Sheet Clamp on the other side
Note: To avoid premature wear of the sanding sheet, it must be clamped over the base tightly.
• This sander is supplied with a Sanding Sheet Hole Punch (10), which must be used to
punch dust extraction holes into conventional sanding sheets that are not pre-punched
(see 'Using the hole punch')
WARNING: The dust extraction system will not function when a sanding sheet with no holes
is used.
WARNING: Never use the sander unless the entire base is covered by the sanding sheet.
Using the hole punch
• The dust extraction system cannot function without holes in the sanding sheet. Sheets
without pre-punched holes need to be punched using the Sanding Sheet Hole Punch (10)
provided
9
GB