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2610047986_GBH2-28L 10/2/17 1:47 PM Page 12
rized per so n nel may result in misplacing
of internal wires and components which
could
cause
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.
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
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
higher the cord capacity.
* 360° Auxiliary Handle
* Depth Gauge
* Carrying Case
** 3-Jaw Chuck
** Straight Chuck SDS Adaptor
Maintenance
Service
Preventive maintenance
performed by unautho-
serious
hazard.
Extension Cords
If an extension cord is
necessary, a cord with
Accessories
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.
We
tool from the power supply before
cleaning or performing any main tenance.
The tool may be cleaned most effectively
with compressed dry air. Always wear
safety gog gles 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.
plastic parts. Some of these are: gasoline,
carbon tetrachlo ride, chlo rinated 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)
-12-
Cleaning
To
avoid
accidents
always dis connect the
Certain cleaning agents
and sol vents damage
and
house hold
Wire Sizes in mm
Cord Length in Meters
100
150
15
30
60
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
–
–
–
–
–
2
120
2.5
4.0
4.0
–
–
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