Bosch GSB 162-2 RE Professional Notice Originale page 20

OBJ_BUCH-1294-001.book Page 20 Friday, August 13, 2010 11:41 AM
20 | English
Operation
Starting Operation
Observe correct mains voltage! The voltage
of the power source must agree with the
voltage specified on the nameplate of the
machine. Power tools marked with 230 V
can also be operated with 220 V.
Reversing the Rotational Direction
(see figure F–G)
The rotational direction switch 3 is used to re-
verse the rotational direction of the machine.
However, this is not possible with the On/Off
switch 5 actuated.
Right rotation: For drilling and screwing in
screws, push the rotational direction switch 3
toward the left.
Left rotation: For loosening and unscrewing
screws and nuts, push the rotational direction
switch 3 toward the right.
Setting the Operating Mode
Drilling and Screwdriving
Set the selector switch 2 to the "Drill-
ing" symbol.
Impact Drilling
Set the selector switch 2 to the "Im-
pact drilling" symbol.
The selector switch 2 engages noticeably and
can also be actuated with the machine running.
Gear Selection, Mechanical
The gear selector 8 can be actuated at
standstill or when the machine is running.
However, this should not be done while op-
erating at full load or maximum speed.
Two speed ranges can be preselected with the
gear selector 8.
Gear I:
Low speed range; for working with
large drilling diameter or for driv-
ing in screws.
Gear II:
High speed range; for working with
small drilling diameter.
2 609 932 747 | (13.8.10)
Switching On and Off
To start the machine, press the On/Off switch 5
and keep it pressed.
To lock the pressed On/Off switch 5, press the
lock-on button 4.
To switch off the machine, release the On/Off
switch 5 or when it is locked with the lock-on
button 4, briefly press the On/Off switch 5 and
then release it.
Safety Clutch
To limit high reaction torque,
the power tool is equipped
with a safety clutch (Anti-Ro-
tation).
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 machine on with the drilling tool
jammed, high reaction torques can occur.
Adjusting the Speed/Impact Frequency
The speed/impact rate of the switched on pow-
er tool can be variably adjusted, depending on
how far the On/Off switch 5 is pressed.
Light pressure on the On/Off switch 5 results in
low speed/impact rate. Further pressure on the
switch increases the speed/impact rate.
Preselecting the Speed/Impact Frequency
With the thumbwheel for speed preselection 6,
the required speed/impact frequency can be
preselected even during operation.
The required speed/impact frequency depends
on the material and the working conditions, and
can be determined through practical testing.
Bosch Power Tools