English | 11
Bosch Power Tools 1 609 929 M81 | (3.12.07)
Gear Selection, Mechanical
f Actuate the gear selection lever 5 only when
the machine is at a complete standstill.
Two speed ranges can be preselected with the
gear selection lever 5.
Gear I:
Low speed range; for screwdriving or working
with large drilling diameter.
Gear II:
High speed range; for working with small drilling
diameter.
If the gear selector 5 cannot be pushed through
to the stop, lightly turn the drill chuck.
Switching On and Off
To start the power tool, press the On/Off switch
10 and keep it pressed.
To switch off the power tool, release the On/Off
switch 10.
Adjusting the Speed
The speed of the switched on power tool can be
variably adjusted, depending on how far the
On/Off switch 10 is pressed.
Light pressure on the On/Off switch 10 results in
a low rotational speed. Further pressure on the
switch results in an increase in speed.
Run-on Brake
When the On/Off switch 10 is released, the
chuck brakes to a stop, thus preventing the run-
on of the tool.
When driving in screws, wait until the screw is
screwed in flush with the material and then re-
lease the On/Off switch 10. By doing so, the head
of the screw does not penetrate into the materi-
al.
Working Instructions
f Apply the power tool to the screw 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.
Before screwing larger, longer screws into hard
materials, it is advisable to predrill a pilot hole
with the core diameter of the thread to approx.
2
/
3
of the screw length.
Maintenance and Service
Maintenance and Cleaning
f Before any work on the power tool (e. g.,
maintenance, tool change, etc.) as well as
during transport and storage, set the rota-
tional direction switch to the center posi-
tion. Unintentional actuation of the On/Off
switch can lead to injuries.
f For safe and proper working, always keep
the power tool and the ventilation slots
clean.
If the power tool should fail despite the care tak-
en in manufacturing and testing procedures, re-
pair should be carried out by an after-sales ser-
vice center for Bosch power tools.
In all correspondence and spare parts orders,
please always include the 10-digit article number
given on the type plate of the power tool.
OBJ_BUCH-593-001.book Page 11 Monday, December 3, 2007 3:49 PM
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