English | 23
Bosch Power Tools 1 609 929 T17 | (20.10.09)
– Provide for good ventilation of the work-
ing place.
– It is recommended to wear a P2 filter-
class respirator.
Observe the relevant regulations in your
country for the materials to be worked.
Operation
Starting Operation
f 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 figures G–H) (GSB 20-2 RE/
GSB 20-2 RCE/GSB 20-2 RET)
f Actuate the rotational direction switch 5
only when the machine is at a standstill.
The rotational direction switch 5 is used to re-
verse the rotational direction of the machine.
However, this is not possible with the On/Off
switch 6 actuated.
Right rotation: For drilling and driving in
screws, push the rotational direction switch 5
downward on the left side and at the same time
upward on the right side.
Left rotation: For loosening and unscrewing
screws and nuts, push the rotational direction
switch 5 upward on the left side and at the same
time downward on the right side.
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
f The gear selector 9 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 9.
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.
If the gear selector 9 cannot be fully engaged,
lightly rotate the drive spindle with the drill bit
by twisting the drill chuck.
Switching On and Off
To start the machine, press the On/Off switch 6
and keep it pressed.
To lock the pressed On/Off switch 6, press the
lock-on button 8.
To switch off the machine, release the On/Off
switch 6 or when it is locked with the lock-on
button 8, briefly press the On/Off switch 6 and
then release it.
Safety Clutch
To limit dangerous reaction
torque, the machine is
equipped with a safety clutch
(anti-rotation).
f 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.
f 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.
OBJ_BUCH-115-003.book Page 23 Tuesday, October 20, 2009 8:47 AM
Ofrecido por www.electromanuales.com
To Next Page
Loading...
