Maintenance - Bosch 1803EVS - 5" Angle Grinder Operating/Safety Instructions Manual

BM 1609929J64 12-05
Wire brushes are intended to "clean"
structural steel, castings, sheet metal, stone
and concrete. They are used to remove rust,
scale and paint.
BRUSHING PRESSURE
1. Remember, the tips of a wire brush do the
work. Operate the brush with the lightest
pressure so only the tips of the wire come in
contact with the work.
2. If heavier pressures are used, the wires
will be overstressed, resulting in a wiping
CORRECT:
Wire tips doing
the work.
Preventive maintenance
! WARNING
performed by unauthorized
personnel 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.
12/12/05 4:07 PM
Wire Brush Operations

Maintenance

Service
serious hazard.
Page 12
Avoid bouncing and snagging
!
WARNING
the wire brush, especially
when working corners, sharp edges etc. This
can cause loss of control and kick-back.
action; and if this is continued, the life of the
brush will be shortened due to wire fatigue.
3. Apply the brush to the work in such a way
that as much of the brush face as possible is
in full contact with the work. Applying the side
or edge of the brush to the work will result in
wire breakage and shortened brush life.
INCORRECT:
Excessive
pressure can
cause wire
breakage.
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.
We
Only genuine Bosch replacement brushes
specially designed for your tool should be used.
After about 300-400 hours of operation, or at
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.
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BEARINGS