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WIRE WELDING

Drive rolls

The drive rolls in the wire feed system must be selected according to wire size and type, see table. Each drive roll has two grooves in different siz es. UWW-161 is delivered with the V-groove 160003.

Smooth V-groove

Knurled V-groove

Smooth V-groove

Wire Loading

Release the spring loaded pressure arm (1) and swing the roll arm (2) up from the wire feed drive roll (3).

Ensure that the groove size in the feeding position on the drive roll matches the wire type and size.

Place the wire spool in place on the wire spool spindle (4). Make sure that the stud (5) engages in the corresponding hole in the wire spool.

Check the Friction Brake Adjustment, a bolt inside the spindle (6). When properly adjusted, the brake should provide only enough drag to prevent overrun of the spool and excess slack in the wire. Too much drag may result in wire feeding problems.

Replace the cap (7).

Carefully detach the end of the wire from the spool, cut the bent portion of wire off and straighten the first 10cm. Thread the wire through the ingoing guide tube (8), over the drive roll (3), and into the outgoing guide tube.

Close the idle roll arm (2) and latch the spring loaded pressure arm (1) in place. The roll pressure on the wire is adjusted with the screw on the pressure arm nut above the spring. It should be sufficient to ensure smooth feeding of the wire. Rotate the spool counterclockwise if required to take up extra slack in the wire.

1

2

6

5 4

4.03

8 S

3

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