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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 im-
mediately. We recommend having 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.
As a requirement of the system, the SDS-plus drilling 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 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 19 (see "Changing the Key
Type Drill Chuck", page 16).
– Open the key type drill chuck 19 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 19 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 19 with the drill
chuck key in anticlockwise direction 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 23 of the quick change
chuck. Open the tool holder by turning the front sleeve 22
until the tool can be inserted. Tightly hold the retaining ring
23 and firmly turn the front sleeve 22 in the direction of the
arrow until a distinct latching noise can be heard.
– Check the tight seating by pulling the tool.
Note: If the tool holder was opened to the stop, then the latch-
ing noise possibly may be heard while closing the tool holder
Bosch Power Tools
and the tool holder will not close.
In this case, turn the front sleeve 22 once in the opposite di-
rection of the arrow. Afterwards, the tool holder can be
closed (tightened) again.
– Turn the mode selector switch 11 to the "drilling" position.
Removing Drilling Tools without SDS-plus
(GBH 2-26 DFR) (see figure I)
– Firmly hold the retaining ring 23 of the quick change
chuck. Open the tool holder by turning the front sleeve 22
in the direction of the arrow until the tool can be removed.
Dust Extraction with the Dust Extraction Attach-
ment (Accessory)
Dusts from materials such as lead-containing coatings,
some wood types, minerals and metal can be harmful to
one's health. Touching or breathing-in the dusts can cause
allergic reactions and/or lead to respiratory infections of
the user or bystanders.
Certain dusts, such as oak or beech dust, are considered
as carcinogenic, especially in connection with wood-treat-
ment additives (chromate, wood preservative). Materials
containing asbestos may only be worked by specialists.
– As far as possible, use a dust extraction system suita-
ble for the material.
– Provide for good ventilation of the working place.
– It is recommended to wear a P2 filter-class respirator.
Observe the relevant regulations in your country for the
materials to be worked.
Prevent dust accumulation at the workplace. Dusts can
easily ignite.
Mounting the Dust Extraction Attachment (see figure J)
For dust extraction, the dust extraction attachment (accesso-
ry) is required. When drilling, the dust extraction attachment
retracts so that the attachment head is always close to the
surface at the drill hole.
– Press the button for depth stop adjustment 12 and remove
the depth stop 13. Press button 12 again and insert the
dust extraction attachment into the auxiliary handle 14
from the front.
– Connect an extraction hose (diameter 19 mm, accessory) to
the extraction sleeve 24 of the dust extraction attachment.
The vacuum cleaner must be suitable for the material being
worked.
When vacuuming dry dust that is especially detrimental to
health or carcinogenic, use a special vacuum cleaner.
Adjusting the Drilling Depth on the Dust Extraction At-
tachment (see figure K)
The required drilling depth X can also be adjusted when the
dust extraction attachment is mounted.
– Insert the SDS-plus drilling tool to the stop into the SDS-
plus tool holder 3. Otherwise, the movability of the SDS-
plus drilling tool can lead to incorrect adjustment of the
drilling depth.
– Loosen the wing bolt 28 on the dust extraction attachment.
– Without switching the power tool on, apply it firmly to the
drilling location. The SDS-plus drilling tool must face
against the surface.
English | 17
1 609 92A 03Z | (2.12.13)