Bosch Power Tools 1677MD Maintenance, Tool Lubrication, Carbon Brushes, Bearings, Care of Blades

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Maintenance

Service

Preventive maintenance performed by unauthorized 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.

TOOL LUBRICATION

Your Bosch tool has been properly lubricated and is ready to use. However it is recommended that the gears be relubricated only with Bosch lubricant: WD7LUB or Skil 80111.

Always check the oil level before using the saw. To check and add oil: Remove plug from power source and

place the saw’s foot on a horizontal surface. Remove oil plug using the same wrench used to remove the saw blade. The oil level should never be below bottom threads in the housing. When adding oil, fill until oil starts to run out of oil hole at arrow on housing and replace oil plug.

NOTE: If oil is extra dirty or thick, replace the plug and run the saw for one minute to warm up the oil. Then remove oil plug and turn saw upside down, to remove all oil. Fill housing with kerosene. Replace plug and run for one minute to flush out the gear housing. Drain out the kerosene and add fresh Bosch lubricant. With a new saw, change the oil after the first ten hours of use.

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. The brushes should be free from dust and dirt. Brushes should be replaced when they have worn down to 3/16" in length. The brushes should slide freely in and out of the holders without sticking.

To check brushes: Disconnect plug from power source. Unscrew the brush caps on the motor housing and lift out the brushes; note

which way they face, so that the brushes can be returned to their original position. Clean the brush holder openings with compressed air or a clean cloth and replace the brushes and caps.

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 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

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.

Certain cleaning agents ! CAUTION and solvents damage plastic parts. Some of these are: gasoline,

carbon tetrachloride, chlorinated cleaning solvents, ammonia and household detergents that contain ammonia.

CARE OF BLADES

Blades become dull even from cutting regular lumber. If you find yourself forcing the saw forward to cut instead of just guiding it through the cut, chances are the blade is dull or coated with wood pitch.

When cleaning gum and wood pitch from blade, unplug the saw and remove the blade. Remember, blades are designed to cut, so handle carefully. Wipe the blade with kerosene or similar solvent to remove the gum and pitch. Unless you are experienced in sharpening blades, we recommend you do not try.

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Contents 2610917132 Work Area Power Tool Safety RulesTool Use and Care Safety Rules for Circular SawsCauses and Operator Prevention Kickback Or Kickback from the workpiece as the saw is restarted Symbols Circular Saw Functional Description and SpecificationsVARI-TORQUE Clutch AssemblyFIG. a Installing Power CordBevel Adjustment Depth AdjustmentOperating Instructions Cutting Angle CheckGeneral Cuts SwitchCutting MASONRY/METAL Pocket CutsRIP Cuts Cutting Large SheetsRIP Board Guide Tool Lubrication MaintenanceCarbon Brushes BearingsTool’s AccessoriesAire de travail Règles de Sécurité GénéralesSécurité des personnes Sécurité électrique Conservez CES InstructionsUtilisation et entretien des outils Consignes de sécurité pour scies circulairesRéparation La réparation des outils électriques doit être confiéeCauses ET PRÉVENTION, PAR Lopérateur DU Rebond Le plomb provenant des peintures à base de plomb NOM SymbolesScie circulaire Description fonctionnelle et spécificationsEmbrayage « VARI-TORQUE » AssemblageLE Système DE Raccord Installation du cordon dalimentationRéglage DE LA Profondeur DE Coupe Consignes de fonctionnementVérification DE L’ANGLE DE Coupe Réglage DE LA Coupe EN BiseauCoupes Régulierès InterrupteurMouvement de la garde inférieure Sciage DES Matériaux DE Maçonnerie ET DES MétauxCoupes DE Refente Coupe DE Grandes FeuillesUtilisation D’UNE Planche Comme Guide DE Refente Entretien ServiceRaccord « TWIST-TO-LOCK » Pour Modèle 1677MDT Uniquement Accessoires20 AMP., 125 Volts Area de trabajo Normas de seguridad para herramientas mecánicasSeguridad eléctrica Seguridad personalServicio Normas de seguridad para sierras circularesEmbrague DE PAR Motor Variable Causas DEL Retroceso Y SU Prevencion POR EL OperadorBM 2610917132 10-03 10/28/03 1107 AM De Ni-Cd SímbolosSierra circulare Descripción funcional y especificacionesCapacidades máximas Embrague DE PAR Motor Variable EnsamblajeEL Sistema DE Conexión Instalación del cordón energíaAjuste DE Profundidad Instrucciones de funcionamientoAjuste DE Inclinación Guía DE LíneaCortes Generales Guía DE InterruptorMovimiento libre del protector inferior Corte DE Mamposteria Y MetalCortes AL Hilo Corte DE Planchas GrandesTABLERO-GUIA Para Cortar AL Hilo Limpieza MantenimientoCapacidad AccesoriosBM 2610917132 10-03 10/28/03 1107 AM Remarques Notas Limited Warranty of Bosch Portable and Benchtop Power Tools