User manual RYOBI G1250C

[. . . ] Never touch the blade, drill bit, grinding wheel or other moving parts during use. Never start a tool when its rotating component is in contact with the work piece. Never lay a tool down before its moving parts have come to a complete stop. ACCESSORIES: The use of accessories or attachments other than those recommended in this manual might present a hazard. [. . . ] Check that the speed marked on the grinding wheel is equal to or greater than the rated speed of the tool. Ensure that the dimensions of the grinding wheel are compatible with the tool and that the wheel fits the spindle. Grinding wheels must be stored in a dry place. Grinding wheels must not be used for any operation other than grinding. Grinding wheels must be stored and handled with care in accordance with the manufacturer's instruction. Inspect the grinding wheel before use to ensure that it is not chipped or cracked. Chips or cracks can cause the wheels to shatter, resulting in possible serious injury. When using new grinding wheels, a sound inspection must be carried out before they are mounted on the tool: A. Using the hammer, lightly tap all around the wheels, carefully listening to the resulting sounds. Any places with chips or cracks will result in a different sort of sound. The key to efficient operating is controlling the pressure and surface contact between the disc and work piece. Flat surfaces are ground at an acute angle, usually 10 to 20 degrees with the work piece. Allow the disc to reach full speed before starting to grind. Too great angle causes concentration of pressure on a small area which may gouge or burn work surface. Noise (sound pressure level) in the workplace can exceed 85 dB (A). In this case, sound insulation and hearing protection measures must be taken by the operator. This tool is started and stopped by sliding and releasing the switch (5). For the convenience for continuous operation, slide the switch along then press the front end down to lock it (action A). To release the lock, press the rear end of the switch (action B). After use, check the tool to make sure that it is in top condition. [. . . ] To release the lock, press the rear end of the switch (action B). After use, check the tool to make sure that it is in top condition. It is recommended that you take this tool to a Ryobi Authorized Service Center for a thorough cleaning and lubrication at least once a year. To ensure safety and reliability, all repairs should be performed by an authorized service or other qualified service organization. [. . . ]