Maintenance - Bosch GWS13-52TG Operating/Safety Instructions Manual

ized personnel may result in misplacing of
internal wires and components which
could cause serious hazard. We recom-
mend that all tool service be performed by a
Bosch Factory Service Center or Authorized
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 de-
pendable service. To maintain peak efficiency
of the motor, we recommend every two to six
months the brushes be examined. Only genu-
ine Bosch replacement brushes specially de-
signed for your tool should be used.
Bearings
After about 300-400 hours of operation, or
at every second brush change, the bearings
should be replaced at Bosch Factory Service
adequate size conductors that is capable
of carrying the current necessary for your
tool must be used. This will prevent exces-
sive voltage drop, loss of power or overheat-
Tool's
25
Ampere
Rating
3-6 18
6-8 18
8-10 18
10-12 16
12-16 14
Service
Preventive maintenance
performed by unauthor-
If an extension cord is
necessary, a cord with
Recommended Sizes of Extension Cords
120 Volt Alternating Current Tools
Cord Length in Feet
50 100
Cord Size in A.W.G.
16 16
16 14
16 14
16 14
12 —

Maintenance

Center or Authorized 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.
tool from the power supply before cleaning
or performing any maintenance.
Ventilation openings and switch levers must
be kept clean and free of foreign matter. Do
not attempt to clean by inserting pointed ob-
jects through openings.
plastic parts. Some of these are: gasoline,
carbon tetrachloride, chlorinated cleaning sol-
vents, ammonia and household detergents
that contain ammonia.
Service Minder™ Brushes
Eliminates quess work, stops the tool when
preventive maintenance is required.
Accessories
ing. Grounded tools must use 3-wire extension
cords that have 3-prong plugs and recepta-
cles.
NOTE: The smaller the gauge number, the
heav ier the cord.
150
14
12
12
12
—
13
Cleaning
To avoid accidents, al-
ways
Certain cleaning agents
and solvents damage
Cord Length in Meters
15 30
Wire Sizes in mm
.75 .75
.75 1.0
.75 1.0
1.0 2.5
— —
disconnect the
60 120
2
1.5 2.5
2.5 4.0
2.5 4.0
4.0 —
— —