OPERATION
and these small pieces will eventually go down into the liner. This will cause clogging in the
liner and added friction that will lead to welding wire feed problems. A U groove wire can
also be used for flux core wire without the wire particles coming of the wire surface. However
it is considered that the knurled roller will give a more positive feed of flux core wire without
any deformation of the wire shape.
§4.3.3 Wire Installation and Set Up Guide
Again the importance of smooth consistent wire feeding during MIG welding cannot be
emphasized enough. The correct installation of the wire spool and the wire into the wire feed
unit is critical to achieving an even and consistent wire feed. A high percentage of faults with
mig welders emanate from poor set up of the wire into the wire feeder. The guide below will
assist in the correct setup of your wire feeder.
(1) Remove the spool retaining nut. (2) Note the tension spring adjuster and spool
locating pin.
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