Alfa IN aXe 250 PULSE Smart (AL)GAS, Instruction Manual, Page: 14 / 31

14/31
ALFA IN a.s. © www.alfain.eu
OVERVIEW OF ROLLS FOR WIRE FEED. To prevent problems with feeding
use wires with diameter 1,0 mm of AIMg3 or AlMg. Wire of alloy Al99, 5 or
AlSi5 are too soft and easily will cause problems with movement.
For the aluminum welding it is also necessary to provide the torch tefl. liner and
special current nipple. We do not recommend you to use the torch longer than
3 m. Great attention must be paid to adjust the contact power of rolls – it must
not be too high, otherwise there is a deformation of the wire.
As a protective atmosphere is necessary to use argon.
Fig. 5 – Customization of the feed for the aluminium wire
Pos. Description
G1 EURO connector
G2 Rolls
G3 Liner terminal for 4,0mm, 4,7mm outer diameter
G4 O-ring 3,5 x1, 5mm to prevent escape of gas
G5 Nut
G6 Liner tefl.
G7 Sustain pipe for teflon and plastic liner
INSERTING THE WIRE
1. Open the side cover of the wire feeder space.
2. Put the wire spool on the wire spool holder
D1 and fix it with the fixing nut
D2 . If a spool (size of 15 or 18 kg) is used, put on each side of the spool
adapter D3 . The hole in the back of the adapter must fit into the pin on
the wire spool holder!
3. Cut off the curved or damaged end of welding wire and lead it through
the inlet liner E3, and the roll into the liner inside the EURO torch
connector (about 5 cm). Make sure, that you use the suitable groove.
4. Put the pressure arm E2 down in that way, that the teeth or the gear fit
and fix it by setting the lever E1 into vertical position.
5. Adjust the pressure nut that way that it provides constant movement of
wire but it does not deform wire. By pressing the button A13 , placed in
the space of the wire feeder, turn on the motor of the feeder. The
adjusting screw is located under the plastic screws
E1 .
6. The spool brake is set by the manufacturer. If necessary, the brake can
be adjusted by a screw D1 so that while stopping the feed, spool will be
stopped on time (it will avoid excessive release of wire). However, too
tight brake needlessly strains the feeding mechanism and thus slippage