Full Product Manual

17
MIG/FLUX-CORED WIRE, DRIVE ROLL AND GUN INFORMATION
For smooth wire feeding, free of jamming and slipping, the drive rolls must be sized correctly. You must select the proper type and size of drive roll for the size
and type of wire used. The size of the wire and the type of drive roll is marked on the side of each drive roll. On this welder, the groove on the same side of the
printed size is the groove that corresponds to the marked size. This means that when installed, the size of the groove will always be facing in. You may need to
remove the drive roller to verify the correct groove size is being used. Only the bottom drive rolls need to be changed. The top drive rolls hold pressure and are
flat. The top drive rolls are not removeable.
The type of wire dictates the groove type:
• Steel and Stainless (INOX) wire uses a V-shaped groove milled into the drive roll. This will be signied by a winged “V” stamped on the side of the drive roll,
next to the wire diameter marking.
• Aluminum wire uses a U-shaped groove milled into the drive roll. This will be signied by a U mark stamped on the side of the drive roll, next to the wire
diameter marking. This cushions the wire, and prevents scoring and damage for easy feeding when using a polymer type gun liner.
• Flux-Cored/Dual Shield wire uses a serrated groove milled into the drive roll. When viewed from the top, the appearance of the groove is similar to a closed
zipper, or saw blade. This also has a zig-zag marking on the side of the drive roll next to the wire diameter marking.
These drive rolls may be stamped in metric wire sizes, or in both metric and imperial sizes. To avoid confusion, use the following conversion to select the proper
drive roll for you wire diameter:
• .6mm=.023-.025”
• .8mm=.030”
• .9mm=.035”
• 1.0mm=.040”
• 1.2mm= .045”
• 1.6mm=.062”(1/16”)
To change or flip the drive rolls:
• Release the tensioner, by flipping the tensioner down and toward you. The upper drive roll arm should raise.
• Remove the slotted screws securing each lower drive roll.
• Pull each retaining spacer.
• Remove the outer ring of the drive roll and flip the drive roll over or replace it, making note of its size.
• The drive roll is actually made of two pieces. Hold the inner assembly of the drive roll on with one nger (to prevent it from slipping off the shaft), while
slipping the outer “rim” of the drive roll off with the other hand. Both inner and outer parts of the assembly have locating keys. The inner assembly does not
need to be removed.
To reinstall the drive rolls:
• Line up drive roll keyway with the locating key on the inner assembly.
• Reassemble in reverse order and tighten each roller.
Make sure both rollers are matched in size. Also make sure the locating keys are in place and have not pushed or slipped out of their grooves during assembly.
Lightly coat the inner mating surfaces with light machine oil if necessary to prevent future seizure. Do not lubricate the surfaces of the drive rolls or erratic feeding
may result.
Section 2 Setup Guide
General Product and Use Information
Grooves
Size/Type Stamp
Screw
Retaining Spacer
Tensioner
Upper Drive Roll Arm
Lower Drive Roll (x2)
Keyway