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The drive belt is a normal maintenance part
and should be inspected periodically for wear.
If the drive belt shows signs of drying out,
cracking or tearing, it should be replaced. If the
drive belt will not track properly or comes off
the pulleys, it should be replaced.
performed by unauthorized
personnel may result in misplacing of
internal wires and components which
recommend that all tool service be performed
by a Bosch Factory Service Center or Autho -
rized Bosch Service Station.
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.
Installing new drive belt: Loosen screw and
remove the drive belt cover (Fig. 11). Cut and
remove the worn drive belt. Before installing the
new drive belt, clean both pulleys thoroughly.
First place the new drive belt onto the drive
pulley then rotate clockwise while pushing the
belt onto the driven pulley (Fig. 12). Reinstall
the drive belt cover and securely tighten screw
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
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