Carbon Brushes; Extension Cords - Bosch JS572E Operating/Safety Instructions Manual

BM 2609932920 10-13_BM 2609932920 09-13.qxp 10/9/13 9:35 AM Page 14

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
specially designed for your tool should be
used.
BEARINGS
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
W RNING
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
C UTION
and
plastic parts. Some of these are: gasoline,
carbon tetrachloride, chlorinated cleaning
solvents, ammonia and household detergents
that contain ammonia.
CLEANING BLADE HOLDER
Clean the saw blade holder regularly. For this,
remove the saw blade from the tool and lightly
tap footplate on a level surface.
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
heavier the cord.
solvents damage

Extension Cords

-14-
Regularly spray penetrating oil onto the saw
blade holder (Fig. 17).
Check the guide roller regularly. If worn, it
must be replaced through an authorized
Bosch Factory Service Center
Lubricate the guide roller occasionally with a
drop of oil (Fig. 18).
FIG. 18
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 50 100 150
3-6 18 16 16
6-8 18 16 14
8-10 18 16 14
10-12 16 16 14
12-16 14 12 —
FIG. 17
2
Wire Sizes in mm
Cord Length in Meters
15 30 60 120
14 0.75 0.75 1.5 2.5
12 0.75 1.0 2.5 4.0
12 0.75 1.0 2.5 4.0
12 1.0 2.5 4.0 —
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