Maintenance And Service - Bosch PSB 650 RE Originalbetriebsanleitung

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.
When not using the power tool, switch it off in order to save
energy.
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/
impact rate. Further pressure on the switch increases the
speed/impact rate.
Preselecting the Speed/Impact Frequency
(PSB 650 RE/PSB 6500 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 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.
Bosch Power Tools
For working with low speed.
For working with maximum speed.
Working Advice
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 machine should fail despite the care taken in manufac-
turing and testing procedures, repair should be carried out by
an after-sales service centre for Bosch power tools.
In all correspondence and spare parts order, please always in-
clude the 10-digit article number given on the type plate of
the machine.
After-sales Service and Customer Assistance
Our after-sales service responds to your questions concern-
ing maintenance and repair of your product as well as spare
parts. Exploded views and information on spare parts can al-
so be found under:
www.bosch-pt.com
Our customer service representatives can answer your ques-
tions concerning possible applications and adjustment of
products and accessories.
Great Britain
Robert Bosch Ltd. (B.S.C.)
P.O. Box 98
Broadwater Park
North Orbital Road
Denham
Uxbridge
UB 9 5HJ
Tel. Service: +44 (0844) 736 0109
Fax: +44 (0844) 736 0146
E-Mail: boschservicecentre@bosch.com
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2 609 005 110 | (21.6.12)