Operating Guide

8
Maintenance
Service
Preventive maintenance
performed by unauth-
orized per so n nel may result in misplacing
of internal wires and components which
could cause serious hazard. We
recommend that all tool service be performed
by a Bosch Factory Service Center or Autho -
rized Bosch Service Station.
Cleaning
To avoid accidents
always dis connect the
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.
Certain cleaning agents
and sol vents damage
plastic parts. Some of these are: gasoline,
carbon tetrachlo ride, chlo rinated cleaning
solvents, ammonia and house hold
detergents that contain ammonia.
After removing the dust box from the dust
extraction attachment, follow these steps for
proper disposal:
A. Take the dust box 12 and put it inside a
plastic bag. Turn the dust box over to
empty out the contents. It is important
that the dust box is completely covered
inside the plastic bag to keep any
possible air-borne dust inside. Lightly
tap the dust box to assure all contents
have been removed. This light tapping
will also remove any large dust
particles that accumulated on the
surface of HEPA filter 13 (Fig. 8).
B. Remove the dust box from the plastic
bag and examine to assure the HEPA
filter 13 has been cleared of all
accumulated dust particles.
To prevent damage to
the HEPA filter, do not
use this dust extraction attachment when
drilling with liquids or into wet materials.
Replace the HEPA filter when collected
dust particles may not be removed from
the filter material. Damaged filter may
create a risk of exposure to crystalline silica
dust.
C. At the end of every day, or If upon
inspection there is still dust on the
HEPA filter 13, follow the steps below:
1. Remove the HEPA filter from the
d
ust box 12 by pressing both locking
tabs 14 inwards and pulling the
HEPA filter 13 out of the dust box
(Fig. 8).
2. Use vacuum cleaner equipped with
HEPA filter, to remove accumulated
dust from the HEPA filter being
cleaned. Using a vacuum cleaner
regularly to clean the HEPA filter will
extend filter life.
3. If vacuuming the HEPA filter 13
does not remove the accumulated
dust, replace the HEPA filter as this
indicates the life of the HEPA filter
has expired.
Do not clean the HEPA
filter with liquids and do
not use compressed air to blow it clean.
There is a risk of damage to the filter.
REPLACING the HEPA filter:
1. Place the new or cleaned HEPA filter 13
back in the dust box 12. Press the filter
until it is fully secured by the locking tabs
14. (Fig. 8)
2. Slide the dust box 12 into the dust
extraction attachment. The dust box is
secured when the locking tabs 5 snap into
the locking position (Fig. 7).
NOTE: You may have to apply extra force on
the bottom of the dust box for proper seating
into the dust extraction attachment. To
confirm proper placement, pull on the black
tabs, without pressing, to confirm that the
dust box is locked in place.
13 12
14
FIG. 8
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