Bosch GBH Professional 36 V-LI Original Operating Instructions page 14

OBJ_BUCH-468-001.book Page 14 Wednesday, August 22, 2007 7:41 PM
14 | English
Reversing the Rotational Direction
(see figure M)
The rotational direction switch 7 is used to re-
verse the rotational direction of the machine.
However, this is not possible with the On/Off
switch 8 actuated.
Right rotation: Push the rotational direction
switch 7 left to the stop.
Left rotation: Push the rotational direction
switch 7 right to the stop.
Set the direction of rotation for hammer drilling,
drilling and chiseling always to right rotation.
Switching On and Off
To start the machine, press the On/Off switch 8.
When starting the machine for the first time, a
starting delay is possible, as the electronic sys-
tem of the power tool has to configure itself
first.
To switch off the machine, release the On/Off
switch 8.
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.
Overload Clutch
If the tool insert becomes caught or
jammed, the drive to the drill spindle is in-
terrupted. Because of the forces that occur,
always hold the power tool firmly with both
hands and provide for a secure stance.
If the power tool jams, switch the machine
off and loosen the tool insert. When switch-
ing the power tool on with the drilling tool
jammed, high reaction torques can occur.
1 619 929 779 | (22.8.07)
Temperature Control Indicator
The red LED of the temperature control indica-
tor 13 signals that the battery or the electronics
of the power tool (when the battery is inserted)
are not within the optimum temperature range.
In this case, the power tool will not operate at
full capacity.
Temperature control of the battery:
– The red LED 13 lights up continuously after
inserting the battery into the charger: The
battery is not within the charging tempera-
ture range between 0 °C and 45 °C and
cannot be charged.
– The red LED 13 flashes when pushing button
15 or pressing the On/Off switch 8 (when the
battery is inserted): The battery is not within
the temperature range for operation of
– 10 °C to +60 °C.
– The battery switches off at a temperature
above 70 °C until the optimum temperature
range is reached again.
Temperature control of the power tool elec-
tronics:
– The red LED 13 lights up continuously when
pressing the On/Off switch 8: The tempera-
ture of the power tool electronics is above
75 °C.
– At a temperature above 90 °C, the electron-
ics of the power tool switch off until the tem-
perature is within the allowable temperature
range again.
Working Instructions
Changing the Chiseling Position (Vario-Lock)
The chisel can be locked in 36 positions. In this
manner, the optimum working position can be
set for each application.
Insert the chisel into the tool holder.
Turn the mode selector switch 10 to the "Vario-
Lock" position (see "Setting the Operating
Mode", page 13).
Turn the tool holder to the requested chiseling
position.
Turn the mode selector switch 10 to the chisel-
ing position. The tool holder is now locked.
For chiseling, set the rotation direction to right
rotation.
Bosch Power Tools