Changing The Tool - BOS GBH Professional 2-26 E Manual Original

OBJ_BUCH-279-002.book Page 22 Wednesday, November 14, 2007 12:41 PM
22 | English
Removing the Key Type Drill Chuck
Push the locking sleeve 5 toward the rear and
pull out the key type drill chuck 18.
Removing/Inserting the Quick Change
Chuck (GBH 2-26 DFR)
Removing the Quick Change Chuck
(see figure D)
Pull the lock ring for the quick change chuck 6
toward the rear, hold it in this position and pull
off the SDS-plus quick change chuck 2 or the
quick change keyless chuck 1 toward the front.
After removing, protect the replacement chuck
against contamination.
Inserting the Quick Change Chuck
(see figure E)
Before inserting, clean the quick change chuck
and apply a light coat of grease to the shank end.
Grasp the SDS-plus quick change chuck 2 or the
quick change keyless chuck 1 completely with
your hand. Slide the quick change chuck with a
turning motion onto the drill chuck mounting 20
until a distinct latching noise is heard.
The quick change chuck is automatically locked.
Check the locking effect by pulling the quick
change chuck.

Changing the Tool

The dust protection cap 4 largely prevents the
entry of drilling dust into the tool holder during
operation. When inserting the tool, take care
that the dust protection cap 4 is not damaged.
A damaged dust protection cap should be
changed immediately. We recommend hav-
ing this carried out by an after-sales service.
Inserting SDS-plus Drilling Tools (see figure F)
The SDS-plus drill chuck allows for simple and
convenient changing of drilling tools without the
use of additional tools.
GBH 2-26 DFR: Insert the SDS-plus quick change
chuck 2.
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.
1 619 929 726 | (14.11.07)
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 G)
Push back the locking sleeve 5 and remove the
tool.
Inserting Drilling Tools without SDS-plus
(GBH 2-26 E/RE/DE/DRE)
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 18 (see "Changing
the Key Type Drill Chuck", page 21).
Open the key type drill chuck 18 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 18 and clamp
the tool uniformly.
GBH 2-26 E/RE: Set the selector switch 16 to
the "Drilling" symbol.
GBH 2-26 DE/DRE: Turn the mode selector
switch 11 to the "drilling" position.
Removing Drilling Tools without SDS-plus
(GBH 2-26 E/RE/DE/DRE)
Turn the sleeve of the key type drill chuck 18
with the drill chuck key in anticlockwise direc-
tion until the drilling tool can be removed.
Inserting Drilling Tools without SDS-plus
(GBH 2-26 DFR) (see figure H)
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 the quick change keyless chuck 1.
Firmly hold the retaining ring 22 of the quick
change chuck. Open the tool holder by turning
the front sleeve 21 until the tool can be inserted.
Tightly hold the retaining ring 22 and firmly turn
the front sleeve 21 in the direction of the arrow
until a distinct latching noise can be heard.
Check the tight seating by pulling the tool.
Bosch Power Tools