ESAB fabricator 141i User Manual

ESAB FABRICATOR 141i
BASIC WELDING GUIDE 4-6 Manual 0-5420
Solving Problems Beyond the Welding Terminals - Inconsistent Wire Feed
Wire feeding problems can be reduced by checking the following points.
FAULT CAUSE
1
Feed roller driven by motor in the
cabinet slipped
Wire spool brake is too tight or drive roll tension not
tight enough.
2
Wire spool unwinds and tangles Wire spool brake is too loose.
3
Wire slipping
A
Worn or incorrect feed roller size. Use a feed roller
matched to the size you are welding.
B
Replace feed roller if worn.
4
Wire rubbed against the mis-aligned
guides and reduced wire feedability.
Mis-alignment of inlet/outlet guides
5
Liner blocked with debris
A
Increased amounts of debris are produced by the
wire passing through the feed roller when excessive
pressure is applied to the pressure roller adjuster.
B
Debris can also be produced by the wire passing
through an incorrect feed roller groove shape or size.
C
Debris is fed into the conduit liner where it
accumulates thus reducing wire feedability.
6
Incorrect or worn contact tip
A
The contact tip transfers the weld current to the
electrode wire. If the hole in the contact tip is too
large then arcing may occur inside the contact tip
resulting in the wire jamming in the contact tip.
B
When using soft wire such as aluminum it may
become jammed in the contact tip due to expansion of
the wire when heated. A Velocity contact tip designed
for soft wires should be used.
7
Poor work lead contact to work piece If the work lead has a poor electrical contact to the
work piece then the connection point will heat up and
result in a reduction of power at the arc.
8
Bent liner This will cause friction between the wire and the liner
thus reducing wire feedability
Table 4-3: Wire Feeding Problems

ESAB fabricator 141i Specifications

General

Brand	ESAB
Model	fabricator 141i
Category	Welding System
Language	English