Festool LEX 3 77-2-5 - Manual (Page 16)

16
LEX 3 GB
cleans and lubricates the compressed air and
keeps it free of condensation. Here, the lubricator
should be set so that a drop is applied to the com-
pressed air approx. every 15 minutes.
Damage that occurs as a result of incorrect
compressed air processing is excluded from
warranty claims.
We recommend a service unit with a 3/8" connector,
when up to two Festool compressed air tools are
used.
A compressor that supplies at least 350 l/min at an
operating pressure of 6 bar should be used to sup-
ply compressed air.
The diameter of the piping system must be suffi-
ciently large (at least 9 mm).
6.2 Connection for IAS hose system [2]
The IAS hose system combines several functions in
one hose depending on the version:
– Compressed air supply [3-1]
– Exhaust air extraction [3-2]
– Dust extraction [3-3]
6.3 Switch on/off
Switching-on: Press [1-1] switch.
Switching off: Release [1-1] switch.
7 Settings
7.1 Setting and adjusting the speed
Can be adjusted at the control lever [1-4] between
This enables you to optimise the material removal
capacity to suit the respective material or applica-
tion.
7.2 Replacing the sanding pad [4]
An optimal work result can only be achieved
using original accessories and consumables.
The use of non-original accessories or con-
sumables invalidates the right to claim under war-
ranty.
Health risk: Fitting sanding pads of incorrect
size causes excessive vibration of the ma-
chine.
Tuned to the surface being processed, the machine
can be equipped with three sanding pads of differ-
ent hardnesses.
Hard: Coarse and fine sanding on surfaces. Sand-
ing edges.
Soft: Universal for coarse and fine sanding, for flat
and convex surfaces.
Extra-soft: Fine sanding of moulded parts, arches,
radii. Do not use on edges.
7.3 Attaching sanding accessories using
StickFix [4b]
The suitable StickFix sandpaper and StickFix sand-
ing cloth can be attached quickly and simply to the
StickFix sanding pad.
 Press the self-adhesive sanding accessory onto
the sanding pad [1-5].
7.4 Dust extraction
 For use of a Festool mobile dust extractor with
flow sensor: Adjust hose diameter of mobile
dust extractor to Ø 27 mm.
To guarantee optimal dust extraction, we recom-
mend using Festool extractors with automatic
switch-on/switch-off device for compressed air
machines.
In order to prevent damage to the pneumatic
motor, dust extraction must not be carried
out on the pneumatic tool when it is at stand-
still.
8 Working with the machine
Please observe all mentioned safety infor-
mations and the following rules when work-
ing:
– Always secure the workpiece in such a manner
that it cannot move while being processed.
For work that generates dust, wear a dust
mask.
CAUTION
Risk of injury
 The machine should always be disconnected
from the compressed air supply before any work
is carried out on the machine.
LEX 3 77/2,5 7.800 - 10.500 min
-1
LEX 3 125/3, 125/5 7.000 - 9.500 min
-1
LEX 3 150/3, 150/5, 150/7 7.000 - 10.000 min
-1
WARNING
Dust hazard
 Always work with a dust extractor.
 Always observe country-specific regulations.