Bosch 3814 Operating Instructions - Page 3

! WARNING "READ ALL INSTRUCTIONS" Failure to follow the SAFETY RULES identified by BULLET (•) symbol listed BELOW and other safety precautions, may result in serious personal injury. Bench Top Abrasive Cut-Off Machine Safety Rules • Keep the lower wheel guard attached and working properly and the guard in the maximum wheel covering position over the workpiece in operation. Keep your body positioned to either side of the wheel, but not in line with the wheel. It is important to position your body and the guard to minimize body exposure from the possible fragments of a burst wheel. • Abrasive Cut Off Wheels must have a maximum safe operating speed greater than the "no load RPM" marked on the tool's nameplate. Wheels running over the rated speed can fly apart and cause injury. • Keep hands away from cutting area and wheel. NEVER place your hand behind the wheel. Do not attempt to remove cut material when wheel is moving. Contact with the spinning wheel may cause serious personal injury. • Wear proper apparel while using an abrasive cut off machine. Face shield or at least safety goggles, dust mask, leather gloves and shop apron capable of stopping small wheel or workpiece fragments. • Use only Type 1 abrasive cut off wheels with the correct size arbor hole. Never use damaged or incorrect wheel flanges or round nut. Other types of wheels are not intended to apply load on periphery and may shatter. Wheels with arbor holes that do not match the mounting hardware of the tool will run eccentrically, vibrate excessively and will cause loss of control. • Do not use a cut off wheel that is larger than the maximum recommended size for your tool, or worn down damaged wheels from larger abrasive cut off machines. Wheels intended for larger tools are not suitable for the higher speed of a smaller tool, these wheels may easily burst and the fragments strike you or bystanders. • Before each use inspect the cut off wheel for chips and cracks. Do not use a wheel that may be damaged. Install a new wheel if tool was dropped. When installing a new wheel carefully handle individual cut off wheels to avoid chipping or cracking. Run the tool at no load for one minute, holding the tool's cutting head down and in the direction away from people. Wheels with flaws will normally break apart during this time. Fragments from a wheel that bursts during operation will fly away at great velocity possibly striking you or bystanders. • Do not grind on the side of Type 1 abrasive cut off wheels. Side forces applied to these wheels may cause them to shatter. • Always use the vise to clamp the work and properly support the over-hanging portion or the workpiece level with the base of the machine. Proper support of workpiece is important to keep the cut off and over-hanging pieces from falling and striking the operator. • Do not "jam" the abrasive wheel into the work or apply excessive pressure while using this machine. Avoid bouncing and snagging the wheel, especially when working corners, sharp edges etc. If the wheel is damaged due to misuse it may develop cracks and eventually burst or shatter without warning. • Keep the depth stop properly adjusted. If the depth stop is improperly set it may cause the tool to flip over when releasing the cutting head too quickly or if the depth is set too deep the wheel may cut into the surface below the base. • This machine is not intended to be used with Wet Diamond Wheels. Using water or other liquid coolants with this machine may result in electrocution or shock. Use of Dry Diamond Wheels is acceptable. • Do not use this tool with "Woodcarving" blade or standard wood cutting toothed blades. These blades are not intended for this machine and can create loss of control during use. • This tool and abrasive wheel are not intended to cut wood or wood products. Abrasive wheels cut by grinding or fretting while in work piece with the embedded grit in the wheel, these grits may grab wood and cause loss of control or could cause the wood to burn due to friction heating. • Do not set or mount the tool on a flammable surface or use the abrasive cut off machine near flammable materials. During operation the wheel ejects sparks and hot chips from grinding on the workpiece, these sparks could ignite flammable materials. • Never cut or attempt to cut magnesium with this tool. The dust generated when cutting magnesium is highly flammable and may be explosive under certain conditions. • Avoid overloading the motor and prevent burn-out especially when cutting large cross sectional pieces, apply light pressure on the handle during cutting. If any sign of smoke is evident at the air vents, immediately discontinue the use of the tool. Electric shock is possible if motor is overloaded and burns out. • Regularly clean the tool's air vents by compressed air. Excessive accumulation of powdered metal inside the motor housing may cause electrical failures. ! WARNING Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to cause cancer, birth defects or other reproductive harm. Some examples of these chemicals are: • Lead from lead-based paints, • Crystalline silica from bricks and cement and other masonry products, and • Arsenic and chromium from chemically treated lumber. Your risk from these exposures varies, depending on how often you do this type of work. To reduce your exposure to these chemicals: work in a well ventilated area, and work with approved safety equipment, such as those dust masks that are specially designed to filter out microscopic particles. "SAVE THESE INSTRUCTIONS" -3-