Bosch GSR 9,6 V PROFESSIONAL Operating Instructions Manual page 12

2 609 932 137.book Seite 3 Freitag, 1. April 2005 11:13 11
Gear Selection, Mechanical
Two speed ranges can be preselected with the
gear selector 3:
1st gear: Low rotational speed, high power.
2nd gear: High rotational speed, less power.
The gear setting can be changed while the ma-
chine is running, however, not while under load.
It is recommended to carry out the switching
while the machine is at a standstill. If the gear se-
lector 3 cannot be slid into the end position while
the machine is at a standstill, turn the chuck
somewhat or briefly press the On/Off switch 4.
Fully Automatic Spindle Locking
(Auto-Lock)
The drill spindle is locked when the On /Off
switch 4 is not pressed.
This makes quick and easy changing of the tool
in the drill chuck possible.
The locked drill chuck enables retightening of
projecting screws by using the switched-off ma-
chine as a screwdriver.
Setting the Torque
Carry out a practical test to determine with which
of the 15 settings of the torque setting ring 2 the
screws are driven flush into the material.
Low setting, e. g., small screws, soft
1
materials.
High setting, e. g., large screws, hard
15
materials.
With the correct setting, the clutch disengages as
soon as the screw is driven flush into the material
or the set torque is reached. Select a higher set-
ting when driving out screws, or set to the "Drill-
ing" symbol.
Drilling
Set the torque setting ring 2 to the "Drill-
ing" symbol.
Replacing the Drill Chuck
The locking screw 13 secures the drill chuck
against loosening from the drill spindle. Fully
open the drill chuck and completely unscrew the
locking screw 13 by turning in clockwise direction
(see figure E ).
12 • 2 609 932 137 • TMS • 18.03.05
Loosening the Drill Chuck
(see figure )
C
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 12 a sharp blow.
Tightening the Drill Chuck
(see figure )
D
The drill chuck is mounted in reverse order ( ).
The chuck must be tightened with a
torque of approx. 35 – 40 Nm.
Operating Instructions
Apply the power tool to the screw /nut only
when it is switched off.
Use only screwdriver bits that fit properly in the
head of the screw.
When driving in larger and/or longer screws in
hard material, it is advisable to drill a pilot hole
first.
For drilling in metal, use only perfectly sharp-
ened HSS drill bits. The appropriate quality is
guaranteed by the Bosch accessories pro-
gram.
Soft Grip
The gripping surface 9 (soft grip) reduces the
danger of slipping and thereby improves the grip
on the machine and the handling.
At the same time, the rubber coating achieves a
vibration-reducing effect.
Maintenance and Cleaning
For safe and proper working, always keep the
machine and its ventilation slots clean.
If the machine should fail despite the care taken
in manufacturing and testing procedures, repair
should be carried out by an authorized after-sales
service agent for Bosch power tools.
In all correspondence and spare parts orders,
please always include the 10-digit article number
given on the nameplate of the machine.
English - 3