Miller Electric Millermatic 180 User Manual
Page 4

TABLE OF CONTENTS
SECTION 6 − MAINTENANCE &TROUBLESHOOTING
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Drive Motor Protection And Tip Saver/Short Circuit Protection
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Changing Drive Roll Or Wire Inlet Guide
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cleaning Or Replacing Gun Liner
Replacing Switch And/Or Head Tube
SECTION 7 − ELECTRICAL DIAGRAM
SECTION 8 − MIG WELDING (GMAW) GUIDELINES
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Typical MIG Process Connections
Typical MIG Process Control Settings
Holding And Positioning Welding Gun
Conditions That Affect Weld Bead Shape
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Poor Weld Bead Characteristics
Good Weld Bead Characteristics
Troubleshooting − Excessive Spatter
8-10. Troubleshooting − Excessive Penetration
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8-11. Troubleshooting − Lack Of Penetration
8-12. Troubleshooting − Incomplete Fusion
8-13. Troubleshooting − Burn-Through
8-14. Troubleshooting − Waviness Of Bead
8-15. Troubleshooting − Distortion
8-16. Common MIG Shielding Gases
WARRANTY