Bosch PSR 12-2 Instructions D'emploi page 16

OBJ_BUCH-213-001.book Page 16 Wednesday, October 11, 2006 8:37 AM
The indicator for right rotation 4 lights up when
the On/Off switch 12 is actuated and the motor
is running.
Left Rotation: For loosening or unscrewing screws,
push the rotational direction switch 11 right to the stop.
The indicator for left rotation 5 lights up when
the On/Off switch 12 is actuated and the motor
is running.
Setting the Torque
With the torque presetting ring 2 the required torque
setting can be preselected in 25 steps. With the cor-
rect setting, the insert tool is stopped as soon as the
screw is screwed flush into the material or when the
adjusted torque is reached. The safety clutch is deacti-
vated in the " " position, e. g. for drilling.
Select a higher setting or switch to the "
when unscrewing screws.
Gear Selection, Mechanical
Actuate the gear selector 3 only when the
machine is at a standstill.
Two speed ranges can be preselected with the gear
selector 3.
Gear I:
Low speed range; for screwdriving or working with
large drilling diameter.
Gear II:
High speed range; for working with small drilling diam-
eter.
If the gear selector 3 cannot be pushed through to the
stop, lightly turn the drill chuck with drill.
Switching On and Off
To start the machine, press the On/Off switch 12 and
keep it depressed.
The power light 10 lights up when the On/Off switch
12 is slightly depressed, and enables illumination of the
screwing location in unfavourable light conditions.
To switch off the machine, release the On/Off switch
12.
Adjusting the Speed
The speed of the switched on power tool can be varia-
bly adjusted, depending on how far the On/Off switch
12 is pressed.
Light pressure on the On/Off switch 12 results in a low
rotational speed. Further pressure on the switch results
in an increase in speed.
Fully automatic spindle locking (Auto-lock)
When the On/Off switch 12 is not pressed, the drill
spindle and thus the tool holder are locked.
This enables screws to be screwed in, even when the
battery is empty and allows for the machine to be used
as a screwdriver.
16 | English
Run-on Brake
When the On/Off switch 12 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 release the On/Off
switch 12. By doing so, the head of the screw does not
penetrate into the material.
Operating Instructions
Apply the power tool to the screw only when
it is switched off. Rotating tool inserts can slip off.
Soft Grip
The gripping surface (soft grip) 6 reduces the danger
of slipping and thereby improves the grip on the
" symbol
machine and the handling.
At the same time, the rubber coating achieves a vibra-
tion-reducing effect.
Tips
After longer periods of working at low speed, allow 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 sharpened HSS
drill bits (HSS=high-speed steel). The appropriate
quality is guaranteed by the Bosch accessories pro-
gram.
Before screwing larger, longer screws into hard mate-
rials, it is advisable to predrill a pilot hole with the core
diameter of the thread to approx.
length.
Maintenance and Service
Maintenance and Cleaning
Before any work on the machine (e. g., main-
tenance, tool change, etc.) as well as during
transport and storage, set the rotational
direction switch to the centre position. Unin-
tentional actuation of the On/Off switch can lead to
injuries.
For safe and proper working, always keep the
machine and ventilation slots clean.
If the machine should fail despite the care taken in man-
ufacturing 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.
2
/ of the screw
3
2 609 001 965 • 11.10.06