Festool DTSC 400 Li, Original Operating Manual, Page: 17 / 19

ETSC 125 Li
17
GB
Dust extraction with Festool's mobile dust ex-
tractor
To prevent having to frequently empty the dust bag
when carrying out sanding work for a long period of
time, you can connect Festool's mobile dust ex-
tractor (with an extraction hose diameter of 27 mm)
to the extractor connection piece
[1-4] .

The start-up mode switches the mobile dust ex-
tractor on as soon as you switch the orbital
sander on. The start-up mode only works in
conjunction with the mains adapter.
Recommendation: Use an antistatic suction hose.
This helps reduce the electric charge.
7.5 Edge protector [6]
The edge protector [1-7] reduces contact of the
sanding pad circumference with a surface (e.g.
when sanding along a wall or a window), thus pre-
venting back-kick of the machine, or machine dam-
age.
Push the edge protector into the groove on the
machine.
Slot the two ends of the edge protector into
place until they click.
Loosen both ends of the edge protector.
Remove the edge protector by pulling it for-
wards.
8 Working with the machine
Observe the following instructions:
– Do not overload the machine by pressing with ex-
cessive force! The best sanding results are
achieved with moderate application pressure.
The sanding capacity and quality are mainly de-
pendent on the selection of the correct abrasive.
– Hold the machine with one hand on the handle
[1-8] .
8.1 Warning signal
The machine shuts down and makes a sound:

Switch off the machine.
Battery pack is empty.

Change the battery pack.
The machine shuts down and does not make a
sound:
Machine is overheated or has been overloaded.

Switch off the machine for 30 seconds.

Reduce the machine load.
If the machine's final speed is then not reached, al-
low the machine to cool down.
9 Service and maintenance
Customer service and repair only
through manufacturer or service
workshops: Please find the nearest
address at: www.festool.com/service
Only use original Festool spare parts!
Order No. at: www.festool.com/service
To ensure constant air circulation, always keep the
cooling air openings in the motor housing clean and
free of any obstruction.
In the event of a slowdown in performance or in-
creased vibrations, blow and clean cooling air
openings.
 Keep the contacts on the machine, charger and
battery pack clean.
For service, maintenance, disposal and
transport of the battery pack, note enclosed
instructions of the battery pack!
10 Accessories
Use only original Festool sanding pads. Low-quality
sanding and polishing pads may cause serious ma-
chine imbalances that decrease the quality of the
work results and increase wear on the power tool.
The order numbers of the accessories and tools can
be found in the Festool catalogue or on the Internet
under "www.festool.com".
WARNING
Risk of injury

Always secure the workpiece in such a manner
that it cannot move while being machined.
WARNING
Risk of injury, electric shock

When carrying out servicing and maintenance
work, always remove the batteries or the mains
adapter from the power tool first.

All maintenance and repair work which requires
the motor housing to be opened should always
be carried out by an authorised service work-
shop.
EKAT
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