Starting Operation - Bosch WEU 650 RE Originalbetriebsanleitung

Screwdriver Tools
When working with screwdriver bits 24, a universal bit holder
23 should always be used. Use only screwdriver bits that fit
the screw head.
For driving screws, always position the "Drilling/Impact Drill-
ing" selector switch 4 to the "Drilling" symbol.
Replacing the Drill Chuck
(PSB 750 RCE/PSB 7500 RCE/PSB 750 RCA)
Removing the Drill Chuck (see figure J)
Clamp the short end of a hex key 26 into the keyless chuck 2.
Place the machine on a stable surface, e. g. a workbench.
Hold the machine firmly and loosen the keyless chuck 2 by
turning the Hex key 26 in rotation direction . Loosen a tight
seated 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 K)
The keyless chuck is mounted in reverse order.
The drill chuck must be tightened with a tightening
torque of approx. 25–35 Nm.
Replacing the Drill Chuck
(PSB 650 RE/PSB 680 RE/PSB 6500 RE/
PSB 6200 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.
Bosch Power Tools
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.
Adjusting the Speed/Impact Frequency
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 Frequency (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 frequency can be preselected even during op-
eration.
The required speed/impact frequency depends on the mate-
rial and the working conditions, and can be determined
through practical 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 frequency depends on the mate-
rial and the working conditions, and can be determined
through practical testing.
For working with low speed.
For working with maximum speed.
English | 19
1 609 92A 0TN | (30.10.14)