Everlast POWER i-MIG 140E Operator's Manual page 19

Section 2
Side Panel:
1. Wire Spool Carrier Assembly. The wire spool
holder 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
movement. When installing an 8" roll, the wire
collar will serve as the carrier for the larger diame-
ter 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 ro-
tating clockwise. Feeding problems will be encoun-
tered 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 po-
larity 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 resistance is met. This will continue to wrap
the wire around the drive mechanism or jam wire
inside the gun liner until trigger is released. Con-
siderable effort is usually needed to clear a bird's
Setup Guide and component Identification
nest condition. 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 inju-
ry. Do not use cleaners or solvents. Felt wire lu-
bricators 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
not on the shoulder of the lower drive roll.
NOTE: The unit may continue to run for up to
5 seconds after it is shut off while the capaci-
tors discharge. This is normal and not a defect.
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