Starting Operation - Bosch PBH 220 RE Originalbetriebsanleitung

24 | 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.
Setting the Operating Mode
The operating mode of the power tool is select-
ed with the mode selector switch 12.
Note: Change the operating mode only when the
machine is switched off! Otherwise, the ma-
chine can be damaged.
– To change the operating mode, push the re-
lease button 13 and turn the mode selector
switch 12 to the requested position until it
can be heard to latch.
Settings for the Application Ranges also see
page 25.
Reversing the Rotational Direction
The rotational direction switch 14 is used to re-
verse the rotational direction of the machine.
However, this is not possible with the On/Off
switch 16 actuated.
Right rotation: Push the rota-
tional direction switch 14 right-
ward to the stop.
Left rotation: Push the rotational
direction switch 14 leftward to
the stop.
Set the direction of rotation for hammer drilling,
drilling and chiselling always to right rotation.
1 619 929 804 | (16.10.07)
Switching On and Off
To start the machine, press the On/Off switch
16.
To lock the On/Off switch, keep it pressed and
additionally push the lock-on button 17.
To switch off the machine, release the On/Off
switch 16. When the On/Off switch 16 is locked,
press it first and then release it.
Setting the Speed/Impact Rate
The speed/impact rate of the switched on pow-
er tool can be variably adjusted, depending on
how far the On/Off switch 16 is pressed.
Light pressure on the On/Off switch 16 results
in low speed/impact rate. Further pressure on
the switch increases the speed/impact rate.
A reduced machine speed allows for easier
starting of the drill bit (e. g., on smooth surfaces
such as tiles), prevents the drill bit from slipping
off while starting, or prevents the drill hole from
chipping out.
Preselecting the Speed/Impact Frequency
A maximum speed/impact frequency can be set
with the thumbwheel 15.
As a result of this limitation, the On/Off switch
16 can only be pressed to the preset maximum
speed.
The speed/impact frequency must be selected
depending on the operating mode, the material
being worked and the respective drilling diame-
ter.
Settings for the Application Ranges also see
page 25.
Safety Clutch
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.
Bosch Power Tools