Selecting Drill Chucks And Tools; Changing The Tool - Bosch Professional GBH 2-23 REA Manual Original

OBJ_BUCH-351-003.book Page 22 Wednesday, October 20, 2010 1:39 PM
22 | English

Selecting Drill Chucks and Tools

For hammer drilling and chiselling (chiselling
only with MV 200 accessory), 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
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
(see figure B)
– Screw the SDS-plus adapter shank 21 into a
key type drill chuck 20. Secure the key type
drill chuck 20 with the securing screw 19.
Please observe that the securing screw has
a left-hand thread.
Inserting the Key Type Drill Chuck
(see figure C)
– 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 20.
1 619 P07 078 | (20.10.10)

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.
Inserting Drilling Tools without SDS-plus
Note: Do not use tools without SDS-plus for
hammer drilling or chiselling! Tools without
SDS-plus and their drill chucks are damaged by
hammer drilling or chiselling.
– Insert a key type drill chuck 20 (see "Chang-
ing the Key Type Drill Chuck", page 22).
– Open the key type drill chuck 20 by turning
until the tool can be inserted. Insert the tool.
– Insert the chuck key into the corresponding
holes of the key type drill chuck 20 and clamp
the tool uniformly.
– Set the selector switch 4 to the "Drilling"
symbol.
Bosch Power Tools