Bosch 1191VSRK Manual de instruções de funcionamento/segurança - Página 11
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BM 160992A08A 01-13_BM 160992A08A 01-13.qxp 1/10/13 2:44 PM Page 11
SANDING AND POLISHING
Fine sanding and polishing require "touch".
Select the most efficient speed.
When using polishing bonnets, alway be sure
the excess string that secures the bonnet is
tucked well within the bonnet during operation.
RUNNING NUTS AND BOLTS
Variable speed control must be used with
caution for driving nuts and bolts with socket
set attachments. The technique is to start
slowly, increasing speed as the nut or bolt runs
down. Set the nut or bolt snugly by slowing the
drill to a stop. If this procedure is not followed,
the tool will have a tendency to torque or twist
in your hands when the nut or bolt seats.
WIRE BRUSHES
Work with brushes requires high speeds.
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
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.
Maintenance
Service
serious
hazard.
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.
CORRECT: Wire tips doing the work.
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.
Bearings which become noisy (due to heavy
load or very abrasive material cutting) should
be replaced at once to avoid overheating or
motor failure.
-11-
15°
BEARINGS