Main handle 3. Dust extraction canister 4. Hook & loop base 5. Paper clamp 6. Variable speed control 7. Front handle 8. Handle lock 9. Hole punch 10. Dust extraction adaptor 11. Sandpaper (2 x 80G) 1 6 2 7 8 3 5 4 10 9 11 Unpacking Due to modern mass production techniques, it is unlikely that your GMC Power Tool is faulty or that a part is missing. If you find anything wrong, do not operate the tool until the parts have been replaced or the fault has been rectified. Failure to do so could result in serious personal injury. Switching on and off 1. Connect the plug to the power supply. 2. To turn the sander on press the “I” side of the on/off switch (1). To stop the sander press the “O” side of the on/off switch (1). Note. Do not switch on the tool when the sanding surface is on the work. Note. Always lift the sander from the work before switching off. Adjusting the speed The speed can be adjusted to suit the material being sanded. 1. To adjust the speed, move the variable speed control (6) until you are satisfied that the speed is what you need for the job in hand. Adjusting the front handle The sander has two handles: the main handle (2) with rubber grip and the front handle (7) which can be adjusted to suit the operator’s needs. 1. To adjust the front handle (7) loosen the handle lock (8) enough so that you can easily move the handle into the desired position. 2. Re-tighten the handle lock (8). Using the sander The sander is designed for sanding wood, metal, plastic and similar materials. It can be used for sanding back and finishing the surface. This sander is a handy size for medium jobs. Operation 1. Switch the sander before you place it on the workpiece and move it over the surface to be smoothed in a circular motion. 2. Grip the main handle in one hand and push down on the front of the handle with the other hand. 3. Take care to hold the sander parallel to the work, and use only moderate pressure. 4. 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. WARNING. Wear safety goggles, a dust mask and ear defenders. The whole sanding pad must rest on the work piece WARNING. Do not use the sander in wet or damp conditions. Selecting the right grade of sandpaper Different grades of sanding paper can be purchased from your local hardware store. Available grades are: Coarse, Medium and Fine. Use a coarse grit to sand down rough finishes, medium grit to smooth the work and fine grit to finish off. It is best to make a trial run on a scrap piece of material to determine the optimum grades of sandpaper for a particular job. Attaching a sanding sheet WARNING. Remove the plug from the socket before carrying out any adjustment, servicing or maintenance. WARNING. Never use the sander unless the entire base is fitted with sandpaper. 1. Select the required grade of sandpaper. Hook and loop sandpaper 2. Match the holes in a suitable sheet with the holes in the base (4) and press the sheet to the base to attach it. To remove the sheet, peel it away from the base. Ordinary sandpaper (non-hook & loop) 3. Release the paper clamp (5) from both sides of the sander. 4. Insert the end of the sandpaper under one clamp and pull the paper tight over the base (4) ensuring the holes align with those in the base and then clamp the other side. 5. The paper should be kept tightly clamped over the base, otherwise there could be excessive wear of the base material. WARNING. Do not continue to use the sander with a sanding sheet that is over worn or damaged. WARNING. Do not use the same sanding sheet for wood and metal. Metal particles become embedded in the sandpaper and will scour a wooden surface. WARNING.Take care to regularly clean out the build up of dust on the base underneath the sandpaper and not to let the sandpaper wear completely down before replacing it. Failure to observe these two precautionary measures can lead to damage to the hooks and loops on the base and the sandpaper will not attach properly. Using the hole punch If the sandpaper installed does not have holes it will be necessary to punch holes into the sandpaper using the hole punch (9) provided. 1. Place the hole punch on a level surface. 2. After fitting the sandpaper to the sander align the base of the sander with the hole punch and push down on the sander until the hole punch pierces the sandpaper. 3. Remove the sander from the hole punch. Dust extraction WARNING. Never use the sander unless the entire base is fitted with sandpaper. WARNING. Remove the plug from the socket before carrying out any adjustment, servicing or maintenance. Attach the dust extraction canister (3) to the sander by pushing and twisting the bayonet fitting. GRIT CHART GRIT TYPE 60 or less Very Coarse 80 – 100 Coarse 120 – 150 Medium 180 – 220 Fin...