[. . . ] Appliances used at many different locations including open air must be connected via a current surge preventing switch. Appliances used at many different locations including open air must be connected via a current surge preventing switch. [. . . ] It is recommended to wear gloves, sturdy non slipping shoes and apron. Always disconnect the plug from the socket before carrying out any work on the machine. Only use tools whose permitted speed is at least as high as the highest no-load speed of the machine. Immediately switch off the machine in case of considerable vibrations or if other malfunctions occur. Only use and store diamond cutting discs according to the manufacturer`s instructions. If the overload protection switches it off frequently, reduce the cutting pressure or depth of cut. Sharpen blunt diamond cutting blades (can be recognised by sparks flying while cutting) by making several cuts into calcareous sandstone or a special sharpening stone. MAINTENANCE The ventilation slots of the machine must be kept clear at all times. Should components need to be exchanged which have not been described, please contact one of our AEG service agents (see our list of guarantee/ service addresses). As well as the machine type printed on the label and order the drawing at your local service agents or directly at: AEG Elektrowerkzeuge, Max-Eyth-Straße 10, D-71364 Winnenden, Germany. [. . . ] As well as the machine type printed on the label and order the drawing at your local service agents or directly at: AEG Elektrowerkzeuge, Max-Eyth-Straße 10, D-71364 Winnenden, Germany. SYMBOLS Please read the instructions carefully before starting the machine. [. . . ]