Bosch GBH 2 S Instrucciones De Servicio página 13

Inserting
Clean and grease the shank end of the tool.
Insert the tool in a twisting manner into the tool
holder until it locks. Check if it has locked by pull-
ing the tool.
Removing
Push back the locking sleeve 2 of the tool holder
and remove the tool.
Initial Operation
Observe correct mains voltage: The voltage of
the power source must agree with the voltage
specified on the nameplate of the machine.
Equipment marked with 230 V can also be con-
nected to 220 V.
Switching On and Off
To start the machine, press the On/Off switch 4
and keep it depressed.
Lock the pushed On/Off switch 4 by pressing the
lock-on button 3.
To switch off the machine, release the On/Off
switch 4 or push and release it then.
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Stepless Speed Control
(GBH 2 SE / GBH 2 SR)
The machine runs with variable speed between 0
and maximum, depending on the pressure ap-
plied to the On/Off switch 4. Light pressure on
the On/Off switch 4 results in low rotational
speed, thus allowing drilling to begin in a smooth,
controlled manner. Further pressure on the
switch results in an increase in speed.
Reversing the Rotational Direction
(GBH 2 SR)
The direction of rotation of the machine can be
selected with the reversing switch 5.
For better loosening of completely screwed in
threaded connections, the speed in left rotation is
limited to 500 RPM.
For safety reasons in left rotation, the on/off
switch 4 cannot be locked with the locking but-
ton 3.
Speed Table
The values in the table are recommendations.
Area of
Application
Impact Drilling
- Stone/
Concrete
Drilling
- Wood/Steel
Screwdriving
English - 3
Impact Stop Speed control
Switch GBH 2 SE /
GBH 2 SR