10.3 Wire feeder
Part
Check point
Remarks
Pressing handle
Is the pressing handle
adjusted to an
appropriate pressure-
applied indicator line?
(Special attention : it is
strictly prohibited to damage
the welding wire under
1.2mm)
It will cause unstable wire
feeding and arc.
Wire-guide tube
1.
is the cut powder
and scrap
accumulated in the
end of the wire-guide
tube and the rim of
wire-feeding reel?
Clean the cut powder and
scrap. Check the reason and
correct the problem
thoroughly.
2.
Does the diameter of
the welding wire
match the inner
diameter of the wire-
guide tube?
The mismatch would cause
unstable arc, or the cut
powder and scrap.
3.
Check if the end
center of the wire-
guide tube is aligned
with the groove
center of the wire-
feeding reel (visual
inspection).
The misalignment would
cause the cut powder and
unstable arc.
Wire-feeding reel
1.
Does the diameter of
the welding wire
match the nominal
diameter of the wire-
feeding reel?
2.
Check if the groove of
the wire- feeding reel
is blocked.
1.
It would cause the
welding wire to
produce the cut
powder, the wire-
feeding hose to be
blocked, and the arc
to be unstable.
2.
Replace it with a new
one if any
abnormality occurs.
Pressing wheel
Check the running stability.
Check if the pressure-
applied side of the welding
wire is worn away and the
contact side is narrowed.
It would cause poor wire
feeding and unstable arc.