17
How Do I Change Polarity For Flux
-
Cored?
machine. Failure to change polarity will result in erratic operation, bird
’
s
nesting of the wire, poor fusion and excess spatter. Use illustrations
below as a guide. Do not confuse Gasless Flux
-
Cored (FCAW) opera-
tion with a different welding process known as Flux
-
Cored with Shield-
ing Gas (FCAW
-
G). Flux
-
Cored with Shielding Gas (also known com-
monly as dual
-
shielded welding) welds with the same positive (+)
polarity as solid wire MIG (GMAW).
Setup Guide
Getting Started
The on screen programming will remind you what polarity to use, but
in case you forget, refer to the illustrations below.
SELECT THE CORRECT MIG AND FLUX-CORED POLARITY.
Even though similar in concept, MIG/MAG (GMAW) and Gas
-
less
Flux
-
Cored (FCAW) welding require a polarity change when transi-
tioning between the two. The unit will remind you with an on
-
screen
prompt to change polarity when you change between the processes,
but this is an often over
-
looked issue, even when reminded by the
How Do I Change Polarity For MIG?
Work Clamp
The MIG gun must also be correct in polarity. Drop open the cover on the
left side of the MIG to access the wire spool and feeder. Just above the
feeder, the are two terminal lugs. The lower is positive, and the upper is
negative. If there are no positive (+) or negative (
-
) symbols, there may also
be a label that says
“
Gas MIG
”
and
“
Gasless
”
or something similar. Regard-
less, the lower terminal is positive and the upper terminal is negative. For
MIG, the wire feeder cable should be connected to the lower positive (+)
terminal via the provided screw. See below.
Work
Torch
MIG/MAG
Position
Work Clamp
When welding most all gasless flux
-
cored wires, polarity will be negative.
There are a small number of exceptions. However, if the manufacturer
doesn
’
t state the polarity, assume it is negative. Drop open the cover on the
left side of the MIG to access the wire spool and feeder. Just above the
feeder, the are two terminal lugs. The lower terminal is positive, and the
upper is negative. If there are no positive (+) or negative (
-
) symbols, there
may also be a label that says
“
Gas MIG
”
and
“
Gasless
”
or something similar.
Connect the wire feeder cable to the upper terminal lug via the provided
screw.
Flux
-
Cored
Work
DINSE 35/50
Adapter
Torch
Euro
-
Quick
Connector
MIG/MAG
DINSE 35/50
Adapter
Euro
-
Quick
Connector
