Operation Manual

English | 21
Bosch Power Tools 2 609 004 637 | (4.8.10)
Setting the Speed/Impact Rate
The speed/impact rate of the switched on pow-
er tool can be variably adjusted, depending on
how far the On/Off switch 8 is pressed.
Light pressure on the On/Off switch 8 results in
low speed/impact rate. Further pressure on the
switch increases the speed/impact rate.
Run-on Brake
When the On/Off switch 8 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 8. By doing so, the head
of the screw does not penetrate into the materi-
al.
Battery Charge-control Indication
The battery charge-control indicator 9 consists
of three green LEDs, and indicates the charge
condition of the battery for a few seconds when
the On/Off switch 8 is pressed halfway or fully.
The 3 LEDs of the battery charge-control indica-
tor 9 and the Power Light 11 flash rapidly when
the battery temperature is not within the oper-
ating temperature range of –30 to +65°C.
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
65 °C is exceeded, the electronic control
switches off the power tool until the tempera-
ture is in the optimum temperature range again.
The 3 LEDs of the battery charge-control indica-
tor 9 and the “Power light” 11 flash rapidly
when the battery temperature is not within the
operating temperature range of –30 to +65°C
and/or when the overload protection has actuat-
ed.
Protection Against Deep Discharging
The lithium ion battery is protected against
deep discharging by the “Electronic Cell Protec-
tion (ECP)”. When the battery is empty, the ma-
chine is switched off by means of a protective
circuit: The inserted tool no longer rotates.
Working Advice
f Apply the power tool to the screw/nut only
when it is switched off. Rotating tool inserts
can slip off.
Maintenance and Service
Maintenance and Cleaning
f For safe and proper working, always keep
the machine and ventilation slots clean.
f Before any work on the machine (e. g.,
maintenance, tool change, etc.) as well as
during transport and storage, set the rota-
tional direction switch to the centre posi-
tion. Unintentional actuation of the On/Off
switch can lead to injuries.
f A damaged dust protection cap should be
changed immediately. We recommend hav-
ing this carried out by an after-sales serv-
ice.
When the battery is no longer operative, please
refer to an authorised after-sales service agent
for Bosch power tools.
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.
LED Capacity
Continuous lighting 3 x green ≥ 67%
Continuous lighting 2 x green 34—66%
Continuous lighting 1 x green 11—33%
Slow flashing 1 x green ≤ 10%
OBJ_BUCH-1190-001.book Page 21 Wednesday, August 4, 2010 10:35 AM