19
Side Panel:
1.
Wire Spool Carrier Assembly.
The wire spool hold-
er is designed to accommodate
4”
and
8”
wire
spools. To install the wire, remove the thumb nut
and the pressure spring from the outer collar and
remove the collar. Note that the outer collar has
two possible ways to be installed. The hub on the
outer collar has a shallow and a deep side. The
deep side should be facing out when installing
8”
rolls. When installing
4”
rolls, the shallow side
should be turned out. When installing
4”
rolls, the
outer collar will serve to sandwich the smaller spool
on the steel shaft preventing side to side move-
ment. When installing an
8”
roll, the wire collar
will serve as the carrier for the larger diameter roll.
When the outer hub is correctly inserted into the
8”
roll, the retaining lip on the collar will be snug
against the roll when the spring and thumb nut are
installed If there is a gap between the retaining lip
on the collar and the wire roll, then it is installed
correctly. Flip the collar over. Tension the wire roll
with the thumb screw and spring so that it does not
continue to spool wire when quickly turned. It
should turn easily, but continue to de
-
spool the
wire more than a 1/4 turn when spun quickly by
hand. NOTE: Make sure the wire roll is installed
with the wire rolling off the bottom of the spool and
the spool is rotating clockwise. Feeding problems
will be encountered if the wire is fed off the top of
the roll.
2.
Polarity.
Note the
“+”
and
“
-
”
symbols located on
the inside of the unit above the wire feed mecha-
nism. To change the polarity of the MIG torch,
simply loosen the screws and remove the cable and
install it on the other terminal.
Standard polarity
for MIG is (+) positive (DCEP) with the work
clamp serving as the (
-
) negative output terminal.
(Also known as reverse polarity). For flux core use
see the wire manufacturer
’
s direction for polarity
recommendation.
3.
Wire Feed Assembly.
Note the numbers on the
side of the tensioner. These numbers are a refer-
ence point to help properly tension the wire so that
the drive roller will not slip. Do not over
-
tension the
wire because it can create a condition known as
birds nesting, where the wire will tangle around the
feeder or jam in the gun. It may not slip if wire
burns back into tip, stuck fast in weld or other re-
sistance is met. This will continue to wrap the wire
around the drive mechanism or jam wire inside the
gun liner until trigger is released. Considerable
effort is usually needed to clear a bird
’
s nest condi-
tion. Too little tension will result in wire slippage
and fast wear on the drive components. Test the
tension of the wire and inspect for proper feeding
before beginning a weld. Occasional cleaning of
the feeder mechanism is necessary to prevent wear
and damage to the feeder and to the MIG gun liner.
Regularly monitor any metal flaking and dirt build
up that may occur around the feeder. Clean it away
gently with compressed air as necessary. Use
proper safety attire while doing this, i.e. glasses,
gloves etc. to prevent injury. Do not use cleaners
or solvents. Felt wire lubricators may be bought
and used to keep feeding cleanly while using steel
or stainless wire.
You may purchase additional
drive rolls from Everlast for flux core use.
NOTE:
If erratic feeding is experienced, check
wire feed tensioner, spool tension (rolling re-
sistance) and for correct size groove. Also
make sure the wire is riding in the groove and
NOTE:
The unit may continue to run for up to 5
seconds after it is shut off while the capacitors
discharge. This is normal and not a defect.
Setup Guide and Component Identification
Section 2
