Bosch 1775E Operating Instructions - Page 4

BM 3609929818 3/03 3/10/03 8:42 AM Page 4 intensity noise can cause hearing loss. Vibration caused by grinding action may be harmful to your hands and arms. Use only Type 1 abrasive wheels with the correct rated diameter and 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 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. Position the cord clear of the spinning wheel. Do not wrap the cord around your arm or wrist. If you lose control and have the cord wrapped around your arm or wrist, it may entrap you and cause injury. Keep your body positioned to either side of the wheel, but not in line with the wheel. It is important to support the tool properly and to position your body such as to minimize body exposure from the possible wheel binding and the kickback of the tool. Keep hands away from cutting area and wheel. Keep your second hand on auxiliary handle. Hold the machine firmly to prevent loss of control. NEVER place your hand behind the wheel since the machine may kickback over your hand. Do not attempt to remove cut material when wheel is moving. If both hands are holding the machine, the wheel cannot cut them. Abrasive 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. Before each use inspect the 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 wheels to avoid chipping or cracking. Run the tool at no load for one minute, holding the tool 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 wheels. Type 1 wheels use the periphery of the wheel for the cutting action. Side forces applied to these wheels may cause them to shatter or cause the tool to kickback. 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. Do not "jam" the abrasive wheel into the work, apply excessive pressure or attempt to use large depths of cut while using this machine. Let the rotating wheel do the work, Abrasive Machines are intended to "cut" the material in a series of shallow depth of cuts. See the instructions for depth of cut later in this manual. Avoid bouncing and snagging the wheel, especially when working corners, sharp edges etc. This can cause loss of control and machine's kickback. When making cuts into blind areas check for live electrical wiring, gas lines or water lines before starting your job. Contact with any of these can lead to serious personal injury and/or property damage. Check with local utility company to shut off and drain these sources before work begins. Do not run the machine while carrying it at your side. Accidental contact with the spinning wheel could result in serious personal injury. Never lay the tool down until the motor has come to a complete standstill. The spinning wheel can grab the surface and pull the tool out of your control. Do not use an abrasive machine near flammable materials. Sparks from the wheel could ignite these materials. Regularly clean the tool's air vents by compressed air. Excessive accumulation of powdered metal inside the motor housing may cause electrical failures. -4-