Bosch PSR 14,4 LI-2 Manual Original página 21

OBJ_BUCH-191-003.book Page 21 Tuesday, July 3, 2007 11:19 AM
Adjusting the Speed
The speed of the switched on power tool can be
variably 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.
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 re-
lease the On/Off switch 12. By doing so, the head
of the screw does not penetrate into the materi-
al.
Battery Charge-control Indication
The battery charge-control indicator 10 consists
of three green LEDs, and indicates the charge
condition of the battery for a few seconds when
the On/Off switch 12 is pressed halfway or fully.
LED
Continuous lighting 3 x green
Continuous lighting 2 x green
Continuous lighting 1 x green
Slow flashing 1 x green
The 3 LEDs of the battery charge-control indica-
tor 10 and the Power Light 9 flash rapidly when
the battery temperature is not within the opert-
ing temperature range of –10 to +70°C.
Bosch Power Tools
Temperature Dependent Overload Protection
When using as intended for, the power tool can-
not be subject to overload. When the load is too
high or the allowable battery temperature of
70 °C is exceeded, the electronic control switch-
es off the power tool until the temperature is in
the optimum temperature range again.
The 3 LEDs of the battery charge-control indica-
tor 10 and the "Power light" 9 flash rapidly when
the battery temperature is not within the operat-
ing temperature range of –10 to +70°C and/or
when the overload protection has actuated.
Protection Against Deep Discharging
The Li-ion battery is protected against deep dis-
charging by the "Electronic Cell Protection
(ECP)". When the battery is empty, the machine
is switched off by means of a protective circuit:
The inserted tool no longer rotates.
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) 7 reduces the
danger of slipping and thereby improves the grip
on the machine and the handling.
At the same time, the rubber coating achieves a
vibration-reducing effect.
Capacity
Tips
≥ 71%
After longer periods of working at low speed, al-
35—70%
low the machine to cool down by running it for
11—34%
approx. 3 minutes at maximum speed with no
load.
≤ 10%
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
/ of the screw length.
3
English | 21
2 609 002 432 | (3.7.07)