OBJ_BUCH-137-002.book Page 14 Wednesday, November 7, 2007 3:04 PM
14 | English
Adjusting the Speed
The speed of the switched on power tool can be
variably adjusted, depending on how far the
On/Off switch 7 is pressed.
Light pressure on the On/Off switch 7 results in
a low rotational speed. Further pressure on the
switch results in an increase in speed.
Adjusting the Screw-in Depth (see figure B)
With the adjustment sleeve 3, the screw-in depth
of the screw head into the workpiece can be pre-
set in 8 locking steps per full turn. Each step cor-
responds with a 0.25 mm change of the screw-in
depth.
Turning the adjustment sleeve 3 in clockwise di-
rection results in a greater screw-in depth; turn-
ing in anticlockwise direction reduces the screw-
in depth.
The required setting is best determined by test-
ing.
Working Advice
Apply the power tool to the screw only when
it is switched off. Rotating tool inserts can
slip off.
Guide the screw toward the screwdriving bit 1.
The screw is held in place by the magnet pull of
the universal bit holder 9. Firmly push the tip of
the screw into the material to be screwed until
the screwing-depth stop 4 faces against the
workpiece.
Switch the machine on. The screw is screwed in-
to the material until the adjusted screw-in depth
is reached. The drive is disengaged and the tool
holder no longer rotates. Check the screw-in
depth and readjust, if required.
For unscrewing screws, set the rotational direc-
tion switch 8 to left rotation and pull off the
screwing-depth stop 4 toward the front without
turning the adjustment sleeve.
Working with the screwing-depth stop 4 is also
possible when adapting the screw-in depth.
Belt Clip
With the belt clip 5, the machine can be hung on-
to a belt. The user has both hands free and the
machine is always at hand.
1 609 929 M77 | (7.11.07)
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.
In all correspondence and spare parts order,
please always include the 10-digit article number
given on the type plate of the machine.
WARNING! Important instructions for connect-
ing a new 3-pin plug to the 2-wire cable.
The wires in the cable are coloured according to
the following code:
Do not connect the blue or brown wire to the
earth terminal of the plug.
Important: If for any reason the moulded plug is
removed from the cable of this power tool, it
must be disposed of safely.
Bosch Power Tools