[. . . ] A wrench or a key left attached to a rotating part of the power tool may result in personal injury. This enables better control of the power tool in unexpected situations. If devices are provided for the connection of dust extraction and collection facilities, ensure these are connected and properly used. The correct power tool will do the job better and safer at the rate for which it was designed. [. . . ] The hook and loop design allows for quick change of sanding sheets and different pads. CIRCULAR SANDING ACTION The oscillating action of your sander produces very quick, small circular motion of the sanding pad. DUST COLLECTION BOX The dust collection box attaches to the sander and keeps dust to a minimum. Your sander has advanced electronic features, designed to assist you in getting the maximum use from your sander. By making proper speed selections, your sander can be adjusted to specific sanding needs. The variable speed control allows the sander to develop a no-load speed that can be adjusted from 6, 000 to 12, 000 min-1. The variable speed control selector is conveniently located on the front of the sander. The electronic feature of your sander introduces the flexibility of adjusting the motor speed to required job conditions. An electronic speed control module senses the load applied to the motor and increases or decreases motor voltage to compensate for and maintain desired RPM. Speed can be set according to the sanding purpose or the surface of the workpiece you will be using. Increase speed for rough surfaces or for quick removal of stock and decrease speed for smaller, delicate sanding applications. Aluminum oxide, silicon carbide, and other synthetic abrasives are best for power sanding. Natural abrasives, such as flint and garnet are too soft for economical use in power sanding. In general, coarse grit will remove the most material and finer grit will produce the best finish in all sanding operations. The condition of the surface to be sanded will determine which grit will do the job. If the surface is rough, start with a coarse grit and sand until the surface is uniform. Medium grit may then be used to remove scratches left by the coarser grit and finer grit used for finishing of the surface. Always continue sanding with each grit until surface is uniform. WARNING Do not use sander without sandpaper; doing so will damage the cushion. Sheet/pad recommended use 80-grit sanding sheet 120-grit sanding sheet 150-grit sanding sheet Coarse sanding Light sanding Light sanding ATTACHING HOOK AND LOOP SANDING DISCS See Figure 2. Align holes in hook and loop type sanding disc with holes in pad, then carefully press fuzzy side of sanding disc against pad as tightly as possible. NOTE: Hook and loop type sanding discs can be reused for the life of the sanding abrasive. It is recommended that you keep the sanding disc backing pad clean to provide for best adhesion. [. . . ] Disconnecting the tool will prevent accidental starting that could cause serious injury. WARNING Always remove scrubbing or sanding pad from sander before cleaning. Failure to do so could cause serious personal injury. WARNING When servicing use only identical Ryobi replacement parts. Most plastics are susceptible to various types of commercial solvents and may be damaged by their use. Use clean cloths to remove dirt, carbon dust, etc. SYMBOL Safety Alert V Hz W WARNING Do not at any time let brake fluids, gasoline, petroleumbased products, penetrating oils, etc. , come in contact with plastic parts. [. . . ]