Miller Millermatic 190 Owner's Manual page 37

9-3. Holding And Positioning Welding Gun
.
Welding wire is energized when gun trigger is pressed. Before lowering helmet and pressing trigger, be sure wire is no more than 1/2 in. (13 mm)
past end of nozzle, and tip of wire is positioned correctly on seam.
5
° °
90 90
End View of Work Angle
GROOVE WELDS
9-4. Conditions That Affect Weld Bead Shape
.
Weld bead shape depends on gun angle, direction of travel, electrode extension (stickout), travel speed, thickness of base metal, wire feed speed
(weld current), and voltage.
10
Short
ELECTRODE EXTENSIONS (STICKOUT)
1
2
4
° °
0 -15
Side View of Gun Angle
°
Push
GUN ANGLES AND WELD BEAD PROFILES
Normal Long
Slow
GUN TRAVEL SPEED
3
°
45
°
45
End View of Work Angle
Perpendicular
Short
FILLET WELD ELECTODE EXTENSIONS (STICKOUT)
Normal Fast
1 Hold Gun and Control Gun
Trigger
2 Workpiece
3 Work Clamp
4 Electrode Extension (Stickout)
Solid Wire − 3/8 to 1/2 in.
(9 to 13 mm)
5 Cradle Gun and Rest Hand on
Workpiece
° °
0 -15
Side View of Gun Angle
FILLET WELDS
S-0421-A
°
10
Drag
Normal Long
OM-264761 Page 33
S-0634