BM 1619929470 2-05
Preventive maintenance
!
WARNING
performed by unauth-
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
If an extension cord is
!
WARNING
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 3-wire
extension cords that have 3-prong plugs and
receptacles.
NOTE: The smaller the gauge number, the
heavier the cord.
Auxiliary Handle*
Carrying case*
2/18/05
12:02 AM
Maintenance
Service
Accessories
Page 9
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
To avoid accidents always
!
WARNING
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
plastic parts. Some of these are: gasoline,
carbon tetrachloride, chlorinated cleaning
solvents,
ammonia
detergents that contain ammonia.
RECOMMENDED SIZES OF EXTENSION CORDS
120 VOLT ALTERNATING CURRENT TOOLS
Cord Size in A.W.G.
Tool's
Ampere
Cord Length in Feet
Rating
25
50
3-6
18
16
6-8
18
16
8-10
18
16
10-12
16
16
12-16
14
12
(*= standard equipment)
(**= optional accessories)
-9-
solvents
damage
and
household
Wire Sizes in mm
Cord Length in Meters
100 150
15
30
60
120
16
14
0.75 0.75 1.5
2.5
14
12
0.75 1.0 2.5
4.0
14
12
0.75 1.0 2.5
4.0
14
12
1.0 2.5 4.0
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