Maintenance And Service - Bosch GBH 11 DE Professional Originalbetriebsanleitung

Overload Clutch
If the tool insert becomes caught or jammed,
the drive to the drill spindle is interrupted.
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.
Changing the Chiselling Position (Vario-Lock)
The chisel can be locked in 12 positions. In this
manner, the optimum working position can be
set for each application.
Insert the chisel into the tool holder.
Press and hold the unlocking button 3 and turn
the mode selector switch 4 to "Changing the
chiselling position (Vario-lock)".
Turn the tool holder to the desired chiselling po-
sition.
Press and hold the unlocking button 3 and turn
the mode selector switch 4 to the "Chiselling"
position. The tool holder is locked in this posi-
tion.
The mode selector switch 4 must always be
locked in the "Chiselling" position when
chiselling.

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.
A damaged dust protection cap should be
changed immediately. We recommend hav-
ing this carried out by an after-sales service.
Bosch Power Tools
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Service Indicator 7
When the carbon brushes are worn out, the ma-
chine switches itself off. This is indicated approx.
8 hours beforehand by the lighting or blinking of
the service indicator 7. The machine must then
be sent to an after-sales service agent. Addresses
are listed in the Section "After-sales service and
customer assistance".
If the machine should fail despite the care taken
in manufacturing 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 include the 10-digit article number
given on the type plate of the machine.
WARNING! Important instructions for connect-
ing a new 3-pin plug to the 2-wire cable.
The wires in the cable are coloured according to
the following code:
Do not connect the blue or brown wire to the
earth terminal of the plug.
Important: If for any reason the moulded plug is
removed from the cable of this power tool, it
must be disposed of safely.
After-sales service and customer assist-
ance
Our after-sales service responds to your ques-
tions concerning maintenance and repair of your
product as well as spare parts. Exploded views
and information on spare parts can also be found
under:
www.bosch-pt.com
Our customer consultants answer your questions
concerning best buy, application and adjustment
of products and accessories.
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