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OBJ_BUCH-1383-001.book Page 6 Thursday, November 18, 2010 11:21 AM
6 | English
Replacing the Drill Chuck
For machines without spindle lock, the drill
chuck must be replaced through an authorized
after-sales service agent for Bosch power tools.
The drill chuck must be tightened with a
tightening torque of approx. 25–30 Nm.
Dust/Chip Extraction
Dusts from materials such as lead-containing
coatings, some wood types, minerals and
metal can be harmful to one's health. Touch-
ing or breathing-in the dusts can cause aller-
gic reactions and/or lead to respiratory infec-
tions of the user or bystanders.
Certain dusts, such as oak or beech dust, are
considered as carcinogenic, especially in
connection with wood-treatment additives
(chromate, wood preservative). Materials
containing asbestos may only be worked by
specialists.
– Provide for good ventilation of the work-
ing place.
– It is recommended to wear a P2 filter-
class respirator.
Observe the relevant regulations in your
country for the materials to be worked.
Prevent dust accumulation at the work-
place. Dusts can easily ignite.
Operation
Starting Operation
Observe correct mains voltage! The voltage
of the power source must agree with the
voltage specified on the nameplate of the
machine. Power tools marked with 230 V
can also be operated with 220 V.
1 619 P09 396 | (18.11.10)
Reversing the Rotational Direction
Actuate the rotational direction switch 4
only when the machine is at a standstill.
The rotational direction switch 4 is used to re-
verse the rotational direction of the machine.
However, this is not possible with the On/Off
switch 3 actuated.
Right Rotation: For drilling and driving in
screws, push the rotational direction switch 4
left to the stop.
Left Rotation: For loosening and unscrewing
screws and nuts, press the rotational direction
switch 4 through to the right stop.
Switching On and Off
To start the machine, press the On/Off switch 3
and keep it pressed.
To lock the pressed On/Off switch 3, press the
lock-on button 2.
To switch off the machine, release the On/Off
switch 3.
Adjusting the Speed
The speed of the switched on power tool can be
variably adjusted, depending on how far the
On/Off switch 3 is pressed.
Light pressure on the On/Off switch 3 results in
a low rotational speed. Further pressure on the
switch results in an increase in speed.
Working Advice
Apply the power tool to the screw/nut only
when it is switched off. Rotating tool inserts
can slip off.
Tips
After longer periods of working at low speed, al-
low the machine to cool down by running it for
approx. 3 minutes at maximum speed with no
load.
For drilling in metal, use only perfectly sharp-
ened HSS drill bits (HSS=high-speed steel). The
appropriate quality is guaranteed by the Bosch
accessories program.
Bosch Power Tools