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BM 160992A032 10-13_DH712 10/9/13 9:13 AM Page 10
Service
Preventive maintenance
W RNING
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 Autho rized 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 (Fig. 6).
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 brush es be examined. Only genuine Bosch
replace ment 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
If an extension cord is
W RNING
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
heav i er the cord.
Auxiliary Handle*
Carrying case*
All manuals and user guides at all-guides.com
Maintenance
should be replaced at Bosch Factory Service
Center or Au thorized Bosch Service Station.
Bearings which become noisy (due to heavy
load or very abrasive material cut ting) should
be replaced at once to avoid overheating or
motor failure.
Your tool is designed to provide a qualified
service technician optimal access to replace
the carbon brushes and the cord. This provides
the service technician the ability to replace
these components without the need of
disassembling the entire tool housing.
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 at -
tempt to clean by inserting pointed objects
through openings.
parts. Some of these are: gasoline, carbon
tetrachlo ride, chlo rinated cleaning solvents,
ammonia and house hold detergents that
contain ammonia.
Extension Cords
RECOMMENDED SIZES OF ExTENSION CORDS
Tool's
Ampere
Rating
Accessories
(*= standard equipment)
(**= optional accessories)
-10-
REPLACEMENT OF CORD AND
CARbON bRUSHES
Cleaning
To avoid accidents always
W RNING
disconnect the tool from
Certain cleaning agents and
C UTION
solvents damage plastic
120 VOLT ALTERNATING CURRENT TOOLS
Cord Size in A.W.G.
Cord Length in Feet
25
50
100 150
3-6
18
16
16
14
6-8
18
16
14
12
8-10
18
16
14
12
10-12
16
16
14
12
12-16
14
12
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2
Wire Sizes in mm
Cord Length in Meters
15
30
60
120
0.75 0.75 1.5
2.5
0.75 1.0 2.5
4.0
0.75 1.0 2.5
4.0
1.0 2.5 4.0
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