Changing The Tool - Bosch GBH 2-26 DBR Professional Originalbetriebsanleitung

20 | English
Adjusting the Drilling Depth (see figure B)
The required drilling depth X can be set with the
depth stop 10.
– Press the button for the depth stop adjust-
ment 9 and insert the depth stop into the
auxiliary handle 11.
The knurled surface of the depth stop 10
must face downward.
– Insert the SDS-plus drilling tool to the stop
into the SDS-plus tool holder 1. Otherwise,
the movability of the SDS-plus drilling tool
can lead to incorrect adjustment of the drill-
ing depth.
– Pull out the depth stop until the distance be-
tween the tip of the drill bit and the tip of the
depth stop correspond with the desired drill-
ing depth X.
Selecting Drill Chucks and Tools
For hammer drilling and chiselling, SDS-plus
tools are required that are inserted in the SDS-
plus drill chuck.
For drilling without impact in wood, metal, ce-
ramic and plastic as well as for screwdriving,
tools without SDS-plus are used (e.g., drills
with cylindrical shank). For these tools, a key-
less chuck or a key type drill chuck are required.
Changing the Key Type Drill Chuck
(see figure C)
To work with tools without SDS-plus (e.g., drills
with cylindrical shank), a suitable drill chuck
must be mounted (key type drill chuck or key-
less chuck, accessories).
Mounting the Key Type Drill Chuck
– Screw the SDS-plus adapter shank 15 into a
key type drill chuck 14. Secure the key type
drill chuck 14 with the securing screw 13.
Please observe that the securing screw has
a left-hand thread.
X XXX XXX XXX | (8.9.10)
Inserting the Key Type Drill Chuck
– Clean the shank end of the adapter shank
and apply a light coat of grease.
– Insert the key type drill chuck with the adapt-
er shank into the tool holder with a turning
motion until it automatically locks.
– Check the locking effect by pulling the key
type drill chuck.
Removing the Key Type Drill Chuck
– Push the locking sleeve 3 toward the rear
and pull out the key type drill chuck 14.

Changing the Tool

The dust protection cap 2 largely prevents the
entry of drilling dust into the tool holder during
operation. When inserting the tool, take care
that the dust protection cap 2 is not damaged.
A damaged dust protection cap should be
changed immediately. We recommend hav-
ing this carried out by an after-sales serv-
ice.
Inserting SDS-plus Drilling Tools (see figure D)
The SDS-plus drill chuck allows for simple and
convenient changing of drilling tools without the
use of additional tools.
– Clean and lightly grease the shank end of the
tool.
– Insert the tool in a twisting manner into the
tool holder until it latches itself.
– Check the latching by pulling the tool.
As a requirement of the system, the SDS-plus
drilling tool can move freely. This causes a cer-
tain radial run-out at no-load, which has no ef-
fect on the accuracy of the drill hole, as the drill
bit centres itself upon drilling.
Removing SDS-plus Drilling Tools
(see figure E)
– Push back the locking sleeve 3 and remove
the tool.
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