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Manuals
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Miller Manuals
Welding System
MigMatic 380
Owner's manual
Miller MigMatic 380 Owner's Manual
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Table of Contents
Declaration of Conformity
Section 1 − Safety Precautions - Read before Using
Symbol Usage
Arc Welding Hazards
Additional Symbols for Installation, Operation, and Maintenance
California Proposition 65 Warnings
Principal Safety Standards
EMF Information
Section 2 − Definitions
Additional Safety Symbols and Definitions
Miscellaneous Symbols and Definitions
Section 3 − Specifications
Serial Number and Rating Label Location
Specifications
Duty Cycle and Overheating
Volt-Ampere Curves
Environmental Specifications
Section 4 − Installation
Installing Gas Supply
Installing Wire Spool and Adjusting Hub Tension
Positioning Jumper Links (230/400V 3-Phase Models)
Electrical Service Guide
Connecting 3-Phase Input Power
Changing Drive Rolls and Wire Inlet Guide (Migmatic 380 Models)
Aligning Drive Rolls and Wire Guide
Threading Welding Wire and Adjusting Pressure Roll Tension
Section 5 − Operation
Controls for Migmatic 300
Controls for Migmatic 380
Selecting Parameters (Migmatic 300 and 380 Models)
Sequencer Controls Settings (Migmatic 300 and 380 Models)
Trigger Mode and Spot Time Selection (Migmatic 300 and 380 Models)
Welding Wire Loading Settings (Migmatic 300 and 380 Models)
Resetting Unit to Factory Default Settings (Migmatic 300 and 380 Models)
Controls for Migmatic 300DX
Controls for Migmatic 380DX
Burnback and Run-In Controls (DX Models Only)
Welding Power Source Input Line Voltage Adjustment (DX Models Only)
Welding Power Source Setup Menu (DX Models Only)
Trigger Mode Selection (DX Models Only)
Welding Wire Diameter Selection for Synergic MIG (DX Models Only)
Welding Wire Type Selection for Synergic MIG (DX Models Only)
Gas Selection for Synergic MIG (DX Models Only)
Selecting Manual MIG Welding (DX Models Only)
Selecting Synergic MIG Welding (DX Models Only)
Section 6 − Maintenance &Troubleshooting
Routine Maintenance
Welding Gun and Wire Drive Assembly
Unit Overload
Troubleshooting
Section 7 − Electrical Diagrams
Section 8 − Parts List
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Controls for Migmatic 300
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Controls for Migmatic 380
3
Selecting Parameters (Migmatic 300 and 380 Models)
4
Section 7 − Electrical Diagrams
5
Section 8 − Parts List
Download this manual
For product information,
Owner's Manual translations,
and more, visit
www.MillerWelds.com
MigMatic 300/380 And DX
OWNER'S MANUAL
OM-251958F
Processes
Description
Arc Welding Power Source
Wire Feeder
R
CE
2018-02
MIG (GMAW) Welding
Flux Cored (FCAW) Welding
File: MIG (GMAW)
Table of
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Table of Contents
Troubleshooting
SECTION 6 − MAINTENANCE &TROUBLESHOOTING
44
Troubleshooting
45
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