Maintenance And Service; Maintenance And Cleaning - Bosch GDE 28 D Professional Manual Original

10 | English
Fitting the Dust Cap and Extension (see figure E)
You will need to change the dust cap (3)/(2) depending on
the drilling diameter:
– Dust cap (3) for a drilling diameter of 4−16 mm
– Dust cap (2) for a drilling diameter of 16−28 mm
In addition, you must change the dust cap if its wall contact
surface shows clear signs of wear and is causing dust to es-
cape through the extraction brush during extraction.
Removing the dust cap:
– Press the release button (14) and pull the dust cap up-
wards out of the holder.
Fitting the dust cap:
– Insert the new dust cap into the holder from above until
the release button (14) audibly engages.
The extension (1) is required if you use drill bits with a total
length of 165−265 mm.
– Mount and remove the extension (1) according to the as-
sembly/removal of the dust cap.
Mechanical filter cleaning
The dust extraction attachment is equipped with mechanical
filter cleaning, which removes dust adhering to the HEPA
filter (16). Carry out mechanical filter cleaning regularly.
This will lead to the HEPA filter being tapped out, ensuring a
constant air volume flow and therefore constant extraction
power.
– Turn the mechanical filter cleaning hand wheel (10)
clockwise until you have heard at least three clicking
sounds.
Emptying the Dust Box (see figures F1−F5)
Note: Wear a dust mask when performing maintenance and
cleaning on the dust box.
Empty the dust box (9) regularly as well as after completing
your work, in order to ensure that the dust extraction attach-
ment continues to perform optimally. The viewing window
enables you to check how full the dust box is.
– Hold the power tool with the dust extraction attachment
horizontally and switch on the power tool for a few
seconds.
This will cause residual dust to be sucked out of the ex-
traction channel into the dust box (9).
– Press the release button (7) and swivel the dust box (9)
out of the dust extraction attachment.
– Open the dust box flap (15) until it covers the filter (16).
– Empty the dust box (9) over a suitable waste bin.
– If necessary, take the HEPA filter (16) out of the dust box
and carefully tap it out or brush down the filter flaps with
a soft brush.
Put the HEPA filter back in the dust box.
Note: Do not clean the HEPA filter by blowing it with com-
pressed air.
– Then close the dust box flap (15).
1 609 92A 5Y8 | (19.10.2021)
– Position the dust box on the dust extraction attachment
at the hinge and swivel the dust box until the release but-
ton (7) audibly engages.
– Carry out mechanical filter cleaning.

Maintenance and Service

Maintenance and Cleaning

Remove the battery from the power tool before carry-
u
ing out work on the power tool (e.g. maintenance,
changing tool, etc.). The battery should also be re-
moved for transport and storage. There is risk of injury
from unintentionally pressing the on/off switch.
Pull the plug out of the socket before carrying out any
u
work on the power tool.
To ensure safe and efficient operation, always keep
u
the power tool and the ventilation slots clean.
If the battery is no longer working, please contact an author-
ised after-sales service agent for Bosch power tools.
In order to avoid safety hazards, if the power supply cord
needs to be replaced, this must be done by Bosch or by an
after-sales service centre that is authorised to repair Bosch
power tools.
– Clean the dust extraction attachment using a dry, soft
cloth.
After-Sales Service and Application Service
Our after-sales service responds to your questions concern-
ing maintenance and repair of your product as well as spare
parts. You can find explosion drawings and information on
spare parts at: www.bosch-pt.com
The Bosch product use advice team will be happy to help you
with any questions about our products and their accessor-
ies.
In all correspondence and spare parts orders, please always
include the 10‑digit article number given on the nameplate
of the product.
Great Britain
Robert Bosch Ltd. (B.S.C.)
P.O. Box 98
Broadwater Park
North Orbital Road
Denham Uxbridge
UB 9 5HJ
At www.bosch-pt.co.uk you can order spare parts or arrange
the collection of a product in need of servicing or repair.
Tel. Service: (0344) 7360109
E-Mail: [email protected]
You can find further service addresses at:
www.bosch-pt.com/serviceaddresses
Disposal
Dust extraction attachments, batteries, accessories and
packaging should be sorted for environmentally friendly re-
cycling.
Bosch Power Tools