Bosch GTR Professional 550 Manual Original página 15

Dry wall sander
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.
Noise/Vibration Information
Noise emission values determined according
to EN 62841-2-4.
Typically, the A-weighted noise level of the power tool is:
Sound pressure level 84 dB(A); sound power
level 95 dB(A). Uncertainty K = 3 dB.
Wear hearing protection!
Vibration total values a (triax vector sum) and uncertainty K
h
determined according to EN 62841-2-4:
2 2
a < 2.5 m/s , K = 1.5 m/s ,
h
The vibration level and noise emission value given in these
instructions have been measured in accordance with a
standardised measuring procedure and may be used to com-
pare power tools. They may also be used for a preliminary
estimation of vibration and noise emissions.
The stated vibration level and noise emission value repres-
ent the main applications of the power tool. However, if the
power tool is used for other applications, with different ap-
plication tools or is poorly maintained, the vibration level
and noise emission value may differ. This may significantly
increase the vibration and noise emissions over the total
working period.
To estimate vibration and noise emissions accurately, the
times when the tool is switched off or when it is running but
not actually being used should also be taken into account.
This may significantly reduce vibration and noise emissions
over the total working period.
Implement additional safety measures to protect the oper-
ator from the effects of vibration, such as servicing the
power tool and application tools, keeping their hands warm,
and organising workflows correctly.
Assembly
Pull the plug out of the socket before carrying out any
u
work on the power tool.
Bosch Power Tools
Changing the sanding sheet (see figure A)
GTR 550
GTR 55-225
To remove the sanding sheet (14), lift it from the side and
pull it from the sanding pad (16).
mm 45/35
Remove dirt and dust from the sanding pad (16), e.g. with a
m 1.1
paintbrush, before attaching a new sanding sheet.
The surface of the sanding pad (16) is fitted with a hook-
m 1.7
and-loop fastening, allowing sanding sheets with a hook-
and-loop backing to be secured quickly and easily.
m 2.3
Press the sanding sheet (14) firmly onto the underside of
the sanding pad (16).
To ensure optimum dust extraction, make sure that the
kg 4.1
punched holes in the sanding sheet (14) are aligned with the
drilled holes in the sanding pad (16).
kg 4.8
/I
Selection of the Sanding Plate
Set of soft
sanding pads
Hard sanding
pad
A) Standard scope of delivery
Changing the sanding pad (see figure B)
Note: Replace damaged sanding pads (16) immediately.
Pull off the sanding sheet. Unscrew the screw (15) com-
pletely and remove the sanding pad (16). Attach the new
sanding pad (16) and retighten the screw.
Note: When attaching the sanding pad, make sure that the
teeth of the catch mate with the recesses in the sanding pad.
Note: Damaged sanding pads must only be replaced by an
after-sales service centre authorised to work with Bosch
power tools.
Dust/chip extraction
Dust from materials can be harmful to health. Touching or
breathing in this dust can trigger allergic reactions and/or
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).
Perfect for finer corners and contours
A)
The sanding pad set comprises:
– The sanding pad
– An intermediate plate and
– A support plate.
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.
1 609 92A 6MX | (16.08.2021)
English | 15