Setting The Wire Feed Pressure - ESAB 0700300989 Instruction Manual

5 OPERATION
Welding with aluminium wire
In order to weld aluminium using the standard supplied MXL™ 270 MIG torch, refer to MIG
torch instruction manual for replacing standard steel conduit liner with Teflon conduit liner.
Order the following accessories: 'U' groove drive roll 1.0 mm / 1.2 mm (0.040 in. / 0.045 in.)
and Teflon conduit liner (PTFE liner), 3 m (10 ft). See WEAR PARTS chapter in this manual
and WEAR PARTS chapter in Instruction manual for the MXL™ 270 for ordering number.
5.5

Setting the wire feed pressure

Illustration A
Start by making sure that the wire moves smoothly through the wire guide. Then set the
pressure of the wire feeder's pressure rollers. It is important that the pressure is not too
high.
To check that the feed pressure is set correctly, you can feed out the wire against an
insulated object, e.g. a piece of wood.
When you hold the welding torch approximately 6 mm (¼ in.) from the piece of wood
(illustration A), the feed rollers should slip.
If you hold the welding torch approximately 50 mm (2 in.) from the piece of wood, the wire
should be fed out and bend (Illustration B).
0463 486 001
Illustration B
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