5.1 The wire feed mechanism has two separate grooved drive rollers and
two separate pressure rollers. The pressure rollers are in separate
housings which are held in place and acted upon by a single, central
pressure adjustment knob as shown in fig.15 above. To access the
drive mechanmism pull the pressure adjustment knob forwards and
allow it to hinge downwards. As you do so the pressure roller housings
will spring upwards as shown in fig.16 below.
5.5
Straighten about 50-100mm of spool wire (
do not allow wire to uncoil
).
Ensure the wire is undistorted and clean cut with no burrs or sharp
points. (Note: Burrs or sharp points at wire tip may damage the torch
liner.) Gently push the wire through the flexible plastic guide and into
the brass wire inlet (fig.18). Guide the wire over the first roller
and through the central plastic guide block. Guide the wire over the
second roller and into the torch fitting wire guide by 50 to 100mm.
5.2
Each drive roller has two drive grooves, one for 0.8mm wire and one
for 1.0mm wire. When using a different thickness of wire it will be
necessary to reverse the position of each roller to ensure that the
correct drive groove is in line with the wire feed drive path.
5.3
You will see a number reference stamped on the face of each roller
e.g. 08 (referring to 0.8mm wire). The number refers to the groove
nearest the back of the roller which is in line with the wire feed path.
To reverse the position of the rollers firstly unscrew and remove the
knurled knobs that hold each roller in position (see A in fig.16).
fig.15
fig.18
fig.16
fig.19
MAKE SURE THAT THE WIRE FEED ROLLERS, THE WIRE GUIDE HOSE
AND THE CONTACT TIP OF THE TORCH MATCH THE DIAMETER AND
TYPE OF WIRE TO BE USED AND ARE FITTED CORRECTLY.
5. WIRE FEED - POWERMIGS 3500,4500
5.4 To set up the drive for 0.6mm wire pull the rollers from their drive axles
as shown in fig.17, reverse them and push them back onto the drive
axles. Rotate each roller on its axle until one of the 4 holes in the
roller drops over the alignment pin on the drive gear. Check that the
required groove dimension appears on the visible face of both rollers.
Fix rollers in position by screwing in the knurled knobs previously
removed.
fig.17
Original Language Version
POWERMIG2750.V2, POWERMIG3500.V2, POWERMIG4500.V2 Issue: 3 - 09/04/10
