Technical Data; Dust/Chip Extraction - Bosch GTR Professional 550 Notice Originale

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Technical Data

Dry wall sander
Article number
Speed preselection
Constant electronic control
Soft start
No-load speed n₀
Sanding pad diameter
Sanding sheet diameter
Dust extraction diameter
Short version length (without
extension tube)
Standard version length
A)
(with one extension tube)
Long version length (with
two extension tubes)
Weight according to EPTA-Procedure 01:2014
– Short version
– Standard version
Protection class
A) Standard scope of delivery
The specifications apply to a rated voltage [U] of 230 V. These spe-
cifications may vary at different voltages and in country-specific mod-
els.
Assembly
Pull the plug out of the socket before carrying out any
u
work on the power tool.
Changing the sanding sheet (see figure A)
To remove the sanding sheet (14), lift it from the side and
pull it from the sanding pad (16).
Remove dirt and dust from the sanding pad (16), e.g. with a
paintbrush, before attaching a new sanding sheet.
The surface of the sanding pad (16) is fitted with a hook-
and-loop fastening, allowing sanding sheets with a hook-
and-loop backing to be secured quickly and easily.
Press the sanding sheet (14) firmly onto the underside of
the sanding pad (16).
To ensure optimum dust extraction, make sure that the
punched holes in the sanding sheet (14) are aligned with the
drilled holes in the sanding pad (16).
Selection of the Sanding Plate
Perfect for finer corners and contours
Set of soft
A)
sanding pads
The sanding pad set comprises:
– The sanding pad
– An intermediate plate and
– A support plate.
1 609 92A 6A8 | (08.05.2021)
Hard sanding
pad
GTR 550
GTR 55-225
3 601 GD4 0..
●
●
●
A) Standard scope of delivery
−1
min 340−910
Changing the sanding pad (see figure B)
mm 215
Note: Replace damaged sanding pads (16) immediately.
mm 225
Pull off the sanding sheet. Unscrew the screw (15) com-
mm 45/35
pletely and remove the sanding pad (16). Attach the new
m 1.1
sanding pad (16) and retighten the screw.
Note: When attaching the sanding pad, make sure that the
m 1.7
teeth of the catch mate with the recesses in the sanding pad.
Note: Damaged sanding pads must only be replaced by an
m 2.3
after-sales service centre authorised to work with Bosch
power tools.

Dust/chip extraction

kg 4.1
Dust from materials can be harmful to health. Touching or
kg 4.8
breathing in this dust can trigger allergic reactions and/or
/I
cause respiratory illnesses in the user or in people in the
near vicinity.
Certain dusts are classified as carcinogenic.
– Use a dust extraction system that is suitable for the ma-
terial wherever possible.
– Provide good ventilation at the workplace.
– It is advisable to wear a P2 filter class breathing mask.
External dust extraction
Connect the dust extraction hose (5) to an extractor (ac-
cessory).
The dust extractor must be suitable for the material being
worked.
When extracting dry dust that is especially detrimental to
health or carcinogenic, use a special dust extractor.
For large surfaces, use the GAS 35 L/M AFC or GAS 55 L/
M AFC dust extractor since these models guarantee the con-
tinuous suction power required.
When working on vertical surfaces, hold the power tool with
the dust extraction hose facing downwards.
Removing/Inserting the Extension Tube
(see figure C)
If the extension tube (10) is not necessary for the sanding
work, it can be removed. This significantly reduces the effort
required for the sanding.
Lift the clamping levers (9) on both sides of the extension
tube (10) and swivel the safety hook (8) downwards.
Loosen the eccentric screw (20) and remove the extension
tube (10) from the sanding head (11) and from the handle
section (7). Push the handle section (7) onto the sanding
High material removal rate, ideal for flat
surfaces and ideal for removing old wall
paints
For universal use on flat and curved sur-
faces
Optimal dust extraction support facilit-
ates work for users.
Bosch Power Tools