Festool LEX 3 77/2,5 Notice D'utilisation D'origine page 15

LEX 3
GB
5 Machine features
[1-1] On/Off switch
[1-2] Button for loosening the IAS connection
[1-3] IAS connection adapter
[1-4] Speed control
[1-5] Sanding pad
The specified illustrations appear at the beginning
of the Operating Instructions.
Accessories shown or described are sometimes not
included in the scope of delivery.
6 Compressed-air supply and com-
missioning
CAUTION
Risk of injury

Make sure that the pneumatic tool is switched off
when you connect the compressed-air supply.
6.1 Compressed air preparation
The machine is designed for lubricated operation
and must be operated with the Festool service unit.
Comprising a filter, controller, condensate outlet
and oiler, it ensures clean, oiled compressed air
free of condensation. The oiler must be adjusted so
that approx. every 15 minutes a drop of oil is added
to the compressed air. The correct setting depends
on the daily usage time.
Damage occurring from inadequate com-
pressed air preparation is excluded from the
warranty.
If using up to two Festool air tools we recommend
the service unit with a 3/8" connection.
For the compressed air supply a compressor which
delivers at least 350 l/min at an operating pressure
of 6 bar must be selected.
The line system must have a sufficiently big diame-
ter (min. 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.
16
Switching off: Release [1-1] switch.
7 Settings
CAUTION
Risk of injury

The machine should always be disconnected
from the compressed air supply before any work
is carried out on the machine.
7.1 Setting and adjusting the speed
Can be adjusted at the control lever [1-4] between
LEX 3 77/2,5
LEX 3 125/3, 125/5
LEX 3 150/3, 150/5, 150/7
This enables you to optimise the material removal ca-
pacity to suit the respective material or application.
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].
In the case of a weakening adhesive effect of
the StickFix surface, the sanding pad acces-
sories, in particular those which are not yet touch-
ing the workpiece, may come loose from the sand-
ing pad and cause injuries. Replace the sanding
pad!
-1
7.800 - 10.500 min
-1
7.000 - 9.500 min
-1
7.000 - 10.000 min