Bosch 3814 Operating Instructions - Page 8

Maintenance Service ! WARNING Preventive maintenance performed by unauthorized personnel may result in misplacing of in- ternal wires and components which could cause serious hazard. We recommend that all tool service be performed by a Bosch Factory Service Center or Authorized Bosch Service Station. TOOL LUBRICATION Your Bosch tool has been properly lubricated and is ready to use. It is recommended that tools with gears be regreased with a special gear lubricant at every brush change. CARBON BRUSHES The brushes and commutator in your tool have been engineered for many hours of dependable service. To maintain peak efficiency of the motor, we recommend every two to six months the brushes be examined. Only genuine Bosch replacement brushes specially designed for your tool should be used. BEARINGS After about 300-400 hours of operation, or at every second brush change, the bearings should be replaced at a Bosch Factory Service Center or Authorized Bosch Service Station. Bearings which become noisy (due to heavy load or very abrasive material cutting) should be replaced at once to avoid overheating or motor failure. Cleaning ! WARNING To avoid accidents always disconnect the tool from the power supply before cleaning or per- forming any maintenance. The tool may be cleaned most effec- tively with compressed dry air. Always wear safety goggles when cleaning tools with compressed air. After each use disconnect the plug from the power source, remove the wheel and washers to wipe deposits of dust from housing and wheel guards. The lower wheel guard should be wiped occasionally with a clean cloth and mild soap to prevent deterioration from oil and grease. After cleaning check operation and condition of the lower wheel guard to make certain it is functional for next use. Ventilation openings and switch levers must be kept clean and free of foreign matter. Do not attempt to clean by inserting pointed objects through openings. ! CAUTION Certain cleaning agents and solvents damage plastic parts. Some of these are: gasoline, carbon tetrachloride, chlorinated cleaning solvents, ammonia and house- hold detergents that contain ammonia. RECOMMENDED CUTTING CAPACITY: ! WARNING Use of this tool beyond recommended capacities may lead to motor burn-out and possible electric shock. Applicable Wheel Dimensions 355 mm (14") outer diameter x less than 4.5 mm (3/16") thickness x 25.4 mm (1") hole diameter Workpiece Configuration (Cross-Section) Maximum Cutting Capacity (a) -8-