be replaced at a Bosch Factory Service Center.Maintenance and Service
Bearings which become noisy (due to heavy
load or very abrasive material cutting) should
be replaced at once to avoid overheating andWARNING! Preventive maintenance per-
motor failure.formed by unauthorized personnel may result
Cleaningin misplacing of internal wires and components
WARNING! To avoid accidents, alwayswhich could cause serious hazard. We recom-
disconnect the tool from the power supplymend that all tool service be performed at a
before cleaning or performing any maintenance.Bosch Factory Service Center.
The tool may be cleaned most effectively with
compressed air. Always wear safety gogglesTool Lubrication
when cleaning tools with compressed air.Your Bosch tool has been properly lubricated
and is ready for use. We recommend, that tools
Ventilation openings and switch levers must bewith gears be regreased with a special gear
kept clean and free of foreign matter. Do notlubricant every time the brushes are changed.
attempt to clean by inserting pointed objectsCarbon Brushes
through openings.The brushes and commutator in your Bosch
tool have been engineered for many hours of
CAUTION! Certain cleaning agents anddependable service. To maintain peak effi-
solvents damage plastic parts. Some of theseciency of the motor, we recommend that every
are: gasoline, carbon tetrachloride, chlorinatedtwo to six months the brushes be examined.
cleaning solvents, ammonia and householdOnly genuine Bosch replacement brushes spe-
detergents that contain ammonia.cially designed for your tool should be used.
Bearings
After about 300-400 hours of operation, or at
every second brush change, the bearings should
8
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ACEC
