Tweco 181i Thermal Arc Fabricator - Manual (Page 60)

Fabricator 181i
BASIC WELDING GUIDE 4-2 Manual 0-5191
Position of MIG Gun
The angle of MIG Gun to the weld has an effect on the width of the weld.
Push Vertical Drag/Pull
Art # A-07185_AB
Figure 4-3
The welding Gun should be held at an angle to the weld joint. (See Secondary Adjustment Variables below)
Hold the MIG Gun so that the welding seam is viewed at all times. Always wear the welding helmet with proper
filter lenses and use the proper safety equipment.
CAUTION
Do not pull the welding MIG Gun back when the arc is established. This will create excessive wire
extension (stick-out) and make a very poor weld.
The electrode wire is not energized until the MIG Gun trigger switch is depressed. The wire may therefore be placed
on the seam or joint prior to lowering the helmet.
Butt & Horizontal Welds
Direction of
Travel
5° to 15°
Longitudinal
Angle
90°
Transverse
Angle
Art # A-08993
Figure 4-4
Horizontal Fillet Weld
Direction of
Travel
5° to 15°
Longitudinal Angle
30° to 60°
Transverse Angle
Art # A-08994
Figure 4-5
Vertical Fillet Welds Art # A-08995
30° to 60°
Transverse
Angle
30° to 60°
Transverse
Angle
Direction of Travel
10°
Longitudinal Angle
10° to 20° Longitudinal
Angle
Figure 4-6
Overhead Weld
Art # A-08996
30° to 60°
Transverse Angle
Direction of Travel
5° to 15°
Longitudinal
Angle
Figure 4-7