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manual abstract
All grease packed hammers require a short ELECTRONIC FEEDBACK CIRCUITRY period of time to warm up. Depending on the (EFC) room temperature, this time may vary from The internal electronic feedback system approximately 15 seconds (90°F) to 2 provides a "soft start", which will reduce the minutes (32°F). A new hammer requires a stresses that occur from a high torque start. break-in period before full performance is The system also helps to keep the pre-realized. This period may require up to 5 selected impact rate and rotating speed hours of operation. virtually constant between no-load and load An electric hammer is likely to be the mostconditions. expensive portable tool at the construction job. The long wear and efficient operation of INSTALLING ACCESSORIES the BOSCH hammers will more than justify Clean the insert shank end of the accessory the cost for tools of this type. As earlier to remove any debris, then lightly grease pointed out, sharp accessories as well as with a light oil or lubricant. If work is to be clean air vents are necessary for efficient done where the accessories are changed operation. Establish and follow a set frequently and laid in dirt, sand or concrete maintenance program. -7 BM 1619929511 3/03 3/10/03 12:09 PM Page 8 Maintenance Service Preventive maintenance performed by unauth ! WARNING orized personnel may result in misplacing of internal 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. SERVICE REMINDER LIGHT When the service reminder light lights up or blinks, this will indicate that the cut-out carbon brushes will switch off the tool in approximately 8 hours. After that period, the light will go off and the tool will stop running. The tool must then be sent to a service center for service. 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 Every second brush change, the bearings should be replaced at 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 performing any maintenance. The tool may be cleaned most effectively with compressed dry air. Always wear safety goggles when cleaning tools with compressed air. 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 household detergents that contain ammonia. Accessories ! WARNING If an extension cord is necessary, a cord with adequate size conductors that is capable of carrying the current necessary for your tool must be used. This will prevent excessive voltage drop, loss of power or overheating. Grounded tools must use 3wire extension cords that have 3-prong plugs and receptacles. NOTE: The smaller the gauge number, the heavier the cord. RECOMMENDED SIZES OF EXTENSION CORDS 120 VOLT ALTERNATING CURRENT TOOLS Tool’s Ampere Cord Size in A.W.G. Wire Sizes in mm2 Rating Cord Length in Feet Cord Length in Meters 25 50 100 150 15 30 60 120 3-6 18 16 16 14 .75 .75 1.5 2.5 6-8 18 16 14 12 .75 1.0 2.5 4.0 8-10 18 16 14 12 .75 1.0 2.5 4.0 10-12 16 16 14 12 1.0 2.5 4.0 — 12-16 14 12 — — — — — — * Auxiliary Handle * Carrying case (*= standard equipment) (**= optional accessories) -8 BM 1619929511 3/03 3/10/03 12:09 PM Page 9 Regles de Securite Generales AVERTISSEMENT! Vous devez lire et comprendre toutes les instructions. Lenon-respect, meme partiel, des instructions ci-apres entraine un risque de choc eletrique, d'incendie et/ou de blessures graves. CONSERVEZ CES INSTRUCTIONS Aire de travail Lorsque vous utilisez un outil electrique a l'exterieur, Veillez a ce que l'aire de travail soit propre et bien employez un prolongateur pour l'exterieur marque « eclairee. Le desordre et le manque de lumiere W-A » ou « W ». Ces cordons sont faits pour etre favorisent les accidents. utilises a l'exterieur et reduisent le risque de choc electrique. Reportez-vous aux « Dimensions N'utilisez pas d'outils electriques dans une recommandees des cordons de rallonge » dans la atmosphere explosive, par exemple enpresence de section Accessoires de ce manuel. liquides, d...