18
WARNING!
The wire feeder has moving parts and has pinch points. Keep all guards in place during use or serious injury may occur. Make sure all drive
rolls are tight and the wire is properly tensioned. Over tensioning can create jamming and wrapping of the wire around the wire feeder. Keep
cover closed while feeding wire.
MIG Wire , Gun Connection, Power Source and Wire Feeder Information
1.
Install the MIG gun as instructed in
“
To install the MIG gun (torch)
”
on the previous page. Loosen the top idler roller tensioner, rotating the
black tensioner knob counter
-
clockwise.
2.
Flip the tensioner down, toward you, releasing the carrier arm that holds the top drive rolls. Loosen tension if necessary to release.
3.
Raise the drive roll arm up. Inspect the drive rolls to make sure that each roller
’
s groove size matches the wire diameter. (See previous page.)
Also make sure correct type of drive rollers are used. i.e. Flux
-
Core drive rolls use special serrated rolls. Notice:Top driven rollers do not
have grooves and are not to be removed.
4.
Raise the Spool Carrier cover and unscrew the plastic retaining cap from the spool carrier. (See Previous page for more information.) Make
sure the spool of wire is loaded correctly so that the wire unrolls from the bottom of the spool (counter
-
clockwise). Thread the wire into the
coiled guide and over the grooves in lower drive rolls. Thread the wire through until it threads into the gun section
4”
-
6”.
5.
Reverse the procedure. Begin by lowering the upper drive rolls into contact with the lower drive rolls, keeping the wire securely held down
so that it stays in the inner groove of the drive roll.
If needed, use a screwdriver with a fine blade or small pick to keep wire from moving out
of the grooves until step 6 is completed.
6.
Raise drive roll tensioner back into place. Tighten it slightly so the wire will be held and not slip out. Notice markings on tensioner for future
reference.
7.
Remove the contact tip from the torch. Hold the torch cable and gun as straight as possible, in direct line with the unit so feeding of the wire
through the gun liner is smooth and easy. Press the gun trigger to feed wire until the wire exits the end of the torch. Reinstall the contact tip
over the wire over the wire and tighten it.
8.
To prevent bird nesting or slipping of the wire, adjust the tensioner clockwise until the drive rolls will not slip when the wire comes into con-
tact with a hard surface. The wire will curl up on end while feeding under power. If you over
-
tension the wire, you will increase the chances of
bird nesting of the wire (balling up of the wire or curling of the wire around the drive rolls), so it is best to tighten just until wire stops slip-
ping and is able to curl up. Extra tension can deform the wire and prematurely wear the drive rolls. Slowing of the feeder may result as well.
Remember not to test on any metal attached to the work clamp to prevent the wire from arcing while performing this test.
Section 2 Setup Guide
4
5
4
5
4
1
2
2
3
3
8
Summary of Contents for Power i-MIG 353DPi
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