Bosch GTR Professional 55-225 Notice Originale page 19

Cause Corrective measure
ting 6 and, in extreme cases,
reduce the speed.
The grit of the abrasive is too Use a sanding sheet with a
coarse. finer grit.
The surface quality is not optimal.
The grit of the abrasive is too Use a sanding sheet with a
coarse. finer grit.
The drying times for the Refer to the technical inform-
bodyfiller material have not ation sheets and manufac-
been observed. turer's recommendations.
The suction effect is too Reduce the suction power.
strong.
The bodyfiller material has a Use a sanding sheet with a
high proportion of filler or is finer grit.
very soft.
The running power tool has Position the power tool be-
been positioned on the sur- fore switching it on.
face (scoring).
Work on the surface and al-
ways work with the remov-
able brush segment.
There are sanding marks on the surface.
The hard sanding pad has Use a soft sanding pad with
been positioned at an angle an intermediate pad.
on the surface.
In the case of very soft body- Use a soft sanding pad with
filler material, the sanding an intermediate pad.
pad is too hard or the grit of
Choose a finer abrasive grit.
the abrasive is too coarse.
The suction effect is insufficient.
The suction power on the Increase the suction power
dust extractor is too low. on the dust extractor.
The drywall sander's speed is Reduce the speed.
too high.
The internal dust extraction Reduce the suction power or
on the drywall sander is too switch to external dust ex-
low. traction.
The bodyfiller material has a Switch on the external dust
high proportion of filler or is extraction, set the suction
very soft. power thumbwheel to setting
6 and, in extreme cases, re-
duce the speed.
The main filter on the dust Clean the filter element regu-
extractor is blocked/ larly:
jammed. – Option 1: Set the suction
Bosch Power Tools
Cause
A fleece dust bag is being
used.
The extraction hose is
blocked or twisted.
The dust extractor's dust
container is full.
Maintenance and Service
Maintenance and Cleaning
u
u
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.
Changing the Connection Hose (see figure I)
To remove the connection hose (18), loosen the screw on
the hose clamp (25) with a screwdriver and lift the hose
clamp (25) off with the connection hose (18). Remove the
hose clamp (25). Pull out the inner housing (26) of the hose
mount (27) at the other end of the connection hose (18).
Hold the inner housing (26) in place and unscrew the con-
nection hose (18).
To insert a new connection hose (18), hold the inner hous-
ing (26) in place and screw in the new connection hose (18)
all the way. Fit the hose clamp (25) on the other side of the
connection hose (18). Position the screw head so that you
can tighten the hose clamp (25) effortlessly on the sanding
head (10) with a screwdriver with a torque of around 2 Nm.
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
power regulation to the
with any questions about our products and their accessor-
maximum suction power.
ies.
Seal the nozzle, extraction
hose or intake port on the In all correspondence and spare parts orders, please always
dust extractor with the include the 10‑digit article number given on the nameplate
palm of your hand for of the product.
10 seconds until the auto-
matic cleaning starts.
Corrective measure
– Option 2: Clean the filter
element mechanically (ex-
traction).
– Option 3: Check the filter
element for damage and
blockages. Insert a new
filter element regularly.
Use a waste disposal dust
bag.
Remove the blockage or un-
twist the hose.
Empty the dust extractor's
dust container.
Pull the plug out of the socket before carrying out any
work on the power tool.
To ensure safe and efficient operation, always keep
the power tool and the ventilation slots clean.
1 609 92A 8PB | (07.03.2023)
English | 19