Bosch PROFESSIONAL GSR 9,6-2 Instrucciones De Servicio página 11

2 609 140 319.book Seite 3 Mittwoch, 1. März 2006 9:25 09
Starting Operation
Inserting the Battery
Use only original Bosch O-pack batteries with
the voltage given on the type plate of your ma-
chine.
Set the rotational direction switch 5 to the centre
position (lock-off). Insert the charged battery 7
into the handle until it can be felt to engage and
is seated flush on the machine.
Reversing the Rotational Direction
Operate the rotational
switch 5 only at a standstill.
The rotational direction
switch 5 is used to re-
verse the rotational direc-
tion of the machine. How-
ever, this is not possible
a
b
with the On/Off switch 4
pressed.
a
Right Rotation ( )
Turn the rotational direction switch through to the
left stop (normal operation: drilling, screwdriving,
etc.).
Left Rotation ( b )
Push the rotational direction switch right to the
stop (loosening or unscrewing screws).
Switching On and Off
To start the machine, press the On/Off switch 4
and keep it depressed.
The machine runs with variable
speed between 0 and maximum,
depending on the pressure applied
to the On/Off switch 4. Light pres-
sure results in a low rotational
speed thus allowing smooth, con-
trolled starts. Do not strain the machine so heav-
ily that it comes to a standstill.
To switch off the machine, release the On/Off
switch 4.
Gear Selection, Mechanical
Two speed ranges can be preselected with the
gear selector 1:
1st gear: Low rotational speed, high power.
2nd gear: High rotational speed, less power.
The speed settings may only be changed when
the machine is motionless. If the speed setting
has not quite notched in properly, briefly press
the On/Off switch 4.
11 • 2 609 140 319 • 06.03
Run-on Brake
When releasing the On/Off switch 4 the speed of
the drill chuck is reduced to a stop, thus prevent-
ing the run-on of the tool.
For screwdriving applications, wait until the screw
is flush with the material and then release the
On/Off switch 4. The screw head does not pene-
trate into the material then.
Setting the Torque
Carry out a practical test to determine with which
of the 25 settings of the torque setting ring 2 the
screws are driven flush into the material.
direction
Low setting, e. g., small screws, soft
1
materials.
High setting, e. g., large screws, hard
25
materials.
With the correct setting, the clutch disengages as
soon as the screw is driven flush into the material
or when the set torque is reached. Select a higher
setting when driving out screws, or set to the
"Drilling" symbol.
Drilling
Set the torque setting ring 2 to the "Drill-
ing" symbol.
Replacing the Drill Chuck
Before any work on the machine itself, remove
the battery.
The locking screw 12 secures the drill chuck
against loosening from the drill spindle. Fully
open the drill chuck and completely unscrew the
locking screw 12 by turning in clockwise direction
B
(see figure
Loosening the Drill Chuck
(see figure
Place the machine on a stable surface (e. g.
workbench). Hold the machine firmly and loosen
the chuck by turning to the left, as when unscrew-
ing a screw ( ). Loosen a tight chuck by giving
the long end of the Allen key 13 a sharp blow.
Tightening the Drill Chuck
(see figure
The drill chuck is mounted in reverse order ( ).
The chuck must be tightened with a
torque of approx. 35–40 Nm.
English - 3
).
)
C
)
D