Maintenance And Service; Maintenance And Cleaning - Bosch GDB 2500 WE PROFESSIONAL Instructions D'emploi

OBJ_BUCH-114-001.book Page 14 Thursday, September 28, 2006 12:42 PM
Operating Instructions
For drilling, release the lock of the feed handle 5 (see
operating instructions of the drill stand).
Start the drilling procedure at half speed (On/Off
switch in the 1/2 position) until the core bit rotates
vibration-free in the material. Then continue drilling at
full speed (On/Off switch in the I position).
While drilling, adapt the feed pressure to the material
being drilled. Drill with uniform pressure. Lightly pull the
core bit out of the bore from time to time so that the
drilling sludge is removed from the core bit segments.
Do not overload the machine. The control indicator 12
flashes in case of overload (see "Control Indicator").
Overload Clutch
If the core bit becomes caught or jammed, the drive to
the drill spindle is interrupted. In this case, switch the
machine off and free the core bit.
Control Indicator
The control indicator 12 flashes:
The power tool is operating in the
overload range.
Reduce the feed pressure. If
required, switch the machine off
and sharpen the core bit.
When the feed pressure is not
reduced, the electronic control
will reduce the speed, even to a complete stop, if
required. After the load is freed, the machine automati-
cally restarts again.
The control indicator 12 lights
up continuously:
The carbon brushes must be
replaced.
A Bosch after-sales service sta-
tion will handle this maintenance
task quickly and reliably.
14 | English
Removing the Core
After drilling, continue to run the water for a short
period in order to flush out the drilling sludge between
the core bit and the core.
If the drilling core is stuck in the core bit, then apply
light blows onto the core bit with a piece of soft wood
or plastic in order to loosen the core. If required, pry the
drilling core out of the core bit using an appropriate
hand tool (slotted screwdriver or similar).
Note: Do not hammer or apply blows onto the core bit
with hard objects (danger of deformation)!

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.
Clean the drilling spindle 9 after finishing work. Occa-
sionally spray an anti-corrosion agent onto the drilling
spindle and the core bit 7.
If the machine should fail despite the care taken in man-
ufacturing and testing procedures, repair should be car-
ried 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.
3 609 929 A54 • 28.9.06