Bosch GBH 2-24 RE Professional Original Instructions Manual page 9

– Turn the lower gripping end of the auxiliary handle (14)
anticlockwise and swivel the auxiliary handle (14) into
the required position. Then turn the lower gripping end of
the auxiliary handle (14) clockwise to retighten it.
Make sure that the retaining strap of the auxiliary handle
slots into the corresponding groove of the housing.
Setting the drilling depth (see figure B)
You can use the depth stop (13) to set the required drilling
depth X.
– Press the button for depth stop adjustment (12) and in-
sert the depth stop into the auxiliary handle (14).
The fluting on the depth stop (13) must face downwards.
– Push the SDS-plus application tool into the SDS-plus tool
holder (3) as far as it will go. Otherwise, the movability of
the SDS-plus drilling tool can lead to incorrect adjustment
of the drilling depth.
– Pull the depth stop far enough out that the distance
between the drill bit tip and the edge of the depth stop
corresponds to the required drilling depth X.
Selecting Drill Chucks and Tools
For hammer drilling and chiselling, you will need SDS-plus
tools, which insert into the SDS-plus drill chuck.
For drilling without impact in wood, metal, ceramic and
plastic as well as for screwdriving, tools without SDS‑plus
are used (e.g. cylindrical shank drill bits). For these tools, a
keyless chuck or a keyed chuck are required.
GBH 2-24 DFR: The SDS-plus quick-change chuck (2) can
easily be swapped with the keyless quick-change chuck (1)
supplied.
Changing the keyed chuck (GBH 2-24 RE, GBH
2-24 DRE)
You must use a suitable drill chuck (keyed or keyless chuck,
accessories) to work with tools that do not have SDS-plus
(e.g. cylindrical shank drill bits).
Fitting the keyed chuck (see figure C)
– Screw the SDS-plus shank (20) into a keyed chuck (19).
Secure the keyed chuck (19) using the securing screw
(18). Note that the securing screw has a left-hand
thread.
Inserting the keyed chuck (see figure C)
– Clean and lightly grease the insertion end of the shank.
– Insert the keyed chuck with the adapter shank into the
tool holder with a turning motion until it automatically
locks.
– Check that it is locked by pulling the keyed chuck.
Removing the keyed chuck
– Push the locking sleeve (5) back and remove the keyed
chuck (19).
Bosch Power Tools
Removing/inserting the quick-change chuck
(GBH 2-24 DFR)
Removing the quick-change chuck (see figure D)
– Pull back on the quick-change chuck locking ring (6), hold
it in this position and pull the SDS-plus quick-change
chuck (2) or the keyless quick-change chuck (1) out from
the front.
– Once the quick-change chuck is removed, protect it from
dirt.
Inserting the quick-change chuck (see figure E)
– Before insertion, clean the quick-change chuck and lightly
grease the shank.
– Wrap your whole hand around the SDS-plus quick-change
chuck (2) or the keyless quick-change chuck (1). Use a
turning motion to push the quick-change chuck into the
drill chuck holder (21) until you hear it click into place.
– The quick-change chuck is automatically locked. Check
that it is locked by pulling on the quick-change chuck.
Changing the Tool
The dust protection cap (4) largely prevents drilling dust
from entering the tool holder during operation. When insert-
ing the tool, make sure that the dust protection cap (4) does
not become damaged.
Replace a damaged dust protection cap immediately.
u
It is recommended that you have use an after-sales
service for this.
Inserting the SDS-plus application tool (see figure F)
The SDS-plus drill chuck enables you to change the applica-
tion tool easily and conveniently without needing to use ad-
ditional tools.
– GBH 2-24 DFR: Insert the SDS-plus quick-change chuck
(2).
– Clean and lightly grease the shank of the application tool.
– Insert the application tool into the tool holder while turn-
ing it until it locks automatically.
– Check that it is locked by pulling on the tool.
As a requirement of the system, the SDS-plus application
tool can move freely. This causes a certain radial run-out at
no-load, which has no effect on the accuracy of the drill hole,
as the drill bit centres itself upon drilling.
Removing the SDS-plus application tool (see figure G)
– Push the locking sleeve (5) back and remove the applica-
tion tool.
Inserting application tools without SDS-plus (GBH 2-24
RE, GBH 2-24 DRE)
Note: Application tools that do not have SDS-plus must not
be used for hammer drilling or chiselling. Tools without SDS-
plus and their drill chucks are damaged by hammer drilling
or chiselling.
– Insert a keyed chuck (19).
– Open the keyed chuck (19) by turning it until the tool can
be inserted. Insert the tool.
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