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RZ 2610917368 9-05
Preventive maintenance
WARNING
!
performed by u nauthorized
personnel may result in misplacing of
internal wires and components which
could cause serious hazard.
recommend that all tool service be performed
by a Bosch Factory Service Center or Autho-
rized Bosch Service Station.
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.
CHUCK LUBRICATION
The wrenchless chuck has been properly
lubricated and is ready to use. If the chuck's
jaws b egin t o s tick d uring u se, t he c huck
requires lubrication. To lubricate the chuck,
first remove debris from the inside of the
chuck with compressed air. Apply a pea-
sized amount of general-purpose grease to
the sides of the jaws, and adjust the chuck
through its full range of motion to distribute
the grease.
CARBON BRUSHES
The bru shes and commuta tor in your too l
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.
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
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
9/1/05
1:08 PM
Maintenance
Service
Extension Cords
Wire Sizes in mm
Cord Length in Meters
100 150
15
30
60
120
16
14
0.75 0.75 1.5
14
12
0.75 1.0 2.5
14
12
0.75 1.0 2.5
14
12
1.0 2.5 4.0
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Page 14
Only genuine Bosch replacement brushes
specially designed fo r your tool should be
used.
After about 300-400 hours of operation, or at
We
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.
WARNING
!
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
!
plastic parts. Some of these are: gasoline,
carbon tetrachloride, chlorinated cleaning
solvents,
ammonia
detergents that contain ammonia.
overheating. Grounded tools must use 3-
wire extension cords that have 3-prong plugs
and receptacles.
NOTE: The s maller t he g auge n umber, t he
heavier the cord.
RECOMMENDED SIZES OF EXTENSION CORDS
120 VOLT ALTERNATING CURRENT TOOLS
(Model RZ25 only)
2
Cord Size in A.W.G.
Tool's
Ampere
Cord Length in Feet
Rating
2.5
3-6
4.0
6-8
4.0
8-10
—
10-12
—
12-16
-14-
BEARINGS
Cleaning
To avoid accidents always
disconnect the tool from
Certain cleaning agents
and solvents damage
and household
Wire Sizes in mm
Cord Length in Meters
50
100
30
60
16
14
1.5 2.5
14
12
2.5 4.0
14
12
2.5 4.0
14
12
4.0
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