8
Northern Industrial Welder
Operating Instructions and Parts Manual
MIG 130
unplug the power cord from the ac
power source before installing wire.
NOTE:
• Before installing, make sure that you
have removed any old wire from the
MIG gun Assembly. This will help to
prevent the possibility of the wire
jamming inside the gun Liner.
• Be very careful when removing the
welding nozzle. The contact tip on
this welder is live whenever the torch
trigger is pulled. Make certain
POWER is turned OFF.
4.2.1 Remove the nozzle and contact
tip from the end of the torch assembly.
See following images
4.2.2 Make sure the proper groove on
the drive roller is in place for the wire
installed. If not, change the drive
roller as described in sec. 3 above.
4.2.3 Remove all outer wrapping from
the spool wire and find the leading
end of the wire in a hole in the spool.
and is bent over the spool edge to.
DO NOT UNHOOK IT AT THIS TIME.
4.2.4 Place the spool on the spool
hub with the wire coming off the
bottom of the spool. The welding wire
should always come off the bottom of
the spool into the drive mechanism.
See following chart.
4.2.5 The welder can use both 4in
and 8in spool, see the illustration
below. The wing nut controls the
tension on the spool.
4.2.6. Setting the spool tension:
a) Turn the spool of wire with one
hand.
b) Tighten the wing nut while the
spool is turning until it slows down.
c) Stop tightening the wing nut when
drag or tension is felt on the spool.
NOTE
:
If TOO MUCH tension is applied to
the wire spool, the wire will slip on the
drive roller or will not be able to feed
at all. If TOO LITTLE tension is
applied, the spool of wire will want to
unspool itself. Readjust the drive
brake tension using the wing nut as
necessary to correct for either
problem.
4.2.7. With the welder disconnected
from the power source, remove the
leading end of the wire from the spool.
Hold on to it, if allowed to be loose it
will unspool and tangle resulting in
lose of wire and time.
4.2.8. Cut off any bent portion of the
wire using a wire cutter.
4.2.9. Loosen the tension adjusting
knob holding the drive tension arm in
place and lift the tension arm up off
the drive roller.
4.2.10. Insert the wire into the inlet
guide tube, feed it across the drive
roller and into the torch assembly
about six inches.
4” wire
spool
8” wire
spool
Adaptor
