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OBJ_BUCH-759-003.book Page 9 Thursday, January 29, 2009 11:46 AM
Starting Operation
Observe the mains voltage! The voltage of
the power source must correspond with the
data on the type plate of the machine.
Switching On and Off
To start the machine, press the On/Off switch 2.
To lock the On/Off switch, keep it pressed and
additionally push the lock-on button 3.
To switch off the machine, release the On/Off
switch 2. When the On/Off switch 2 is locked,
press it first and then release it.
Regulating the Air flow
Adjust the required air volume by turning the
thumbwheel 4:
Turning in clockwise direction: Increases the air
volume.
Turning in anticlockwise direction: Reduces the
air volume.
Working Advice
During "blowing" operation, take care that no de-
bris/impurities can be drawn into the air intake 9.
Never vacuum without a dust bag.
Do not vacuum sharp-edged or hot materials,
such as glass splinters, hot ash or metal chips.
When vacuuming, empty the dust bag regularly.
Observe the environmental regulations when dis-
posing waste.
Maintenance and Service
Maintenance and Cleaning
Before any work on the machine itself, pull
the mains plug.
For safe and proper working, always keep
the machine and ventilation slots clean.
If the machine should fail despite the care taken
in manufacturing and testing procedures, repair
should be carried out by an after-sales service
centre for Bosch power tools.
If the replacement of the supply cord is neces-
sary, this has to be done by Bosch or an author-
ized Bosch service agent in order to avoid a safe-
ty hazard.
In all correspondence and spare parts order,
please always include the 10-digit article number
given on the type plate of the machine.
Replacing the Carbon Brushes (see figure C)
Check the length of the carbon brushes approx.
every 2 – 3 months and replace the carbon brush-
es if required.
Never replace only a single carbon brush!
Criteria for replacement of the carbon brushes: A
dotted or broken line is visible on one of the large
side surfaces of each carbon brush. When either
of both carbon brushes is used up to this line,
then both carbon brushes should be replaced im-
mediately in order to protect the armature
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