OBJ_BUCH-911-010.book Page 19 Thursday, June 30, 2016 10:08 AM
Replacing the Drill Chuck
(PSB 650 RE/PSB 680 RE/PSB 6500 RE/PSB 6
200 RE/PSB 650 RA)
Removing the Drill Chuck (see figure L)
Clamp the short end of a hex key 26 into the keyless chuck 2.
Place the machine on a firm surface, e. g. a workbench. Hold
the machine firmly, press the spindle lock button 25 and loos-
en the keyless chuck 2 by turning the Hex key 26 in rotation
direction . Loosen a tight keyless chuck by giving the long
end of the Hex key 26 a light blow. Remove the Hex key from
the keyless chuck and completely unscrew the keyless chuck.
Mounting the Drill Chuck (see figure M)
The keyless chuck is mounted in reverse order.
The drill chuck must be tightened with a tightening
torque of approx. 25–35 Nm.
Operation
Starting Operation
Observe correct mains voltage! The voltage of the pow-
er 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 N–O)
The rotational direction switch 7 is used to reverse the rota-
tional direction of the machine. However, this is not possible
with the On/Off switch 8 actuated.
Right Rotation: For drilling and driving in screws, push the
rotational direction switch 7 left to the stop.
Left Rotation: For loosening and unscrewing screws and
nuts, press the rotational direction switch 7 through to the
right stop.
Setting the operating mode
Drilling and Screwdriving
Set the selector switch 4 to the "Drilling" symbol.
Impact Drilling
Set the selector switch 4 to the "Impact drilling"
symbol.
The selector switch 4 engages noticeably and can also be ac-
tuated with the machine running.
Switching On and Off
To start the machine, press the On/Off switch 8 and keep it
pressed.
To lock the pressed On/Off switch 8, press the lock-on button
6.
To switch off the machine, release the On/Off switch 8 or
when it is locked with the lock-on button 6, briefly press the
On/Off switch 8 and then release it.
To save energy, only switch the power tool on when using it.
Bosch Power Tools
Adjusting the Speed/Impact Rate
The speed/impact rate of the switched on power tool can be
variably adjusted, depending on how far the On/Off switch 8
is pressed.
Light pressure on the On/Off switch 8 results in low speed/im-
pact rate. Further pressure on the switch increases the
speed/impact rate.
Preselecting the Speed/Impact Rate (PSB 650 RE/
PSB 680 RE/PSB 6500 RE/PSB 6200 RE/PSB 650 RA)
With the thumbwheel for speed preselection 14, the required
speed/impact rate can be preselected even during operation.
The required speed/impact rate depends on the material and
the working conditions, and can be determined through prac-
tical testing.
Electronic Speed Preselection
(PSB 750 RCE/PSB 7500 RCE/PSB 750 RCA)
With the thumbwheel for electronic speed preselection 5, the
required speed/impact frequency can be selected even if the
machine is running.
The required speed/impact rate depends on the material and
the working conditions, and can be determined through prac-
tical testing.
For working with low speed.
For working with maximum speed.
Working Advice
Before any work on the machine itself, pull the mains
plug.
Apply the power tool to the screw/nut only when it is
switched off. Rotating tool inserts can slip off.
After longer periods of working at low speed, allow the ma-
chine to cool down by running it for approx. 3 minutes at max-
imum speed with no load.
Maintenance and Service
Maintenance and Cleaning
Before any work on the machine itself, pull the mains
plug.
For safe and proper working, always keep the machine
and ventilation slots clean.
If the replacement of the supply cord is necessary, this has to
be done by Bosch or an authorized Bosch service agent in or-
der to avoid a safety hazard.
English | 19
1 609 92A 1NU | (30.6.16)