Machine Features; Compressed-Air Supply And Com- Missioning; Compressed Air Preparation; Switch On/Off - Festool LEX 3 77/2,5 Manual De Instrucciones Original

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.
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 consum-
ables invalidates the right to claim under warranty.
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!
LEX 3
GB
-1
7800 - 10500 min
-1
7000 - 9500 min
-1
7000 - 10000 min
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