User Manuals: Miller Electric Millermatic 90 Welding

Manuals and User Guides for Miller Electric Millermatic 90 Welding. We have 1 Miller Electric Millermatic 90 Welding manual available for free PDF download: Owner's Manual

Miller Electric Millermatic 90 Owner's Manual

Miller Electric Millermatic 90 Owner's Manual (41 pages)

CV/DC Welding Power Source/Wire Feeder

Brand: Miller Electric | Category: Welding System | Size: 1.78 MB

Table of Contents

Circuit Diagram
4
Wiring Diagram for Welding Power Source
5
Arc Welding Safety Precautions
9
Table of Contents
11
Safety Information
13
Specifications
13
Welding Power Source
13
Volt-Ampere Curves
14
Welding Gun
14
Duty Cycle
14
Installation
15
Installing Work Clamp
15
Gun Polarity for Wire Type
15
Installing Welding Gun
16
Selecting a Location and Connecting Input Power
16
Gun and Trigger Connections
16
Location and Input Power Connections
16
Threading Welding Wire
17
Installing Gas Supply
18
Typical Regulator/Flowmeter Installation
18
Operation
19
Safety Equipment
19
Work Clamp
19
Controls
20
Shielding Gas
20
Sequence of Operation for Hard and Flux Cored Wires
21
Sequence of Operation for Aluminum Welding
21
Suggested Welding Settings
21
Maintenance & Troubleshooting
22
Routine Maintenance
22
Overload Protection
22
Fuse F1 Location
22
Cleaning or Repairing Drive Assembly
23
Overheating
23
Short Circuit Shutdown
23
Removing Drive Roll, Drive Bearing, and Wire Inlet Guide
23
Replacing Gun Contact Tube
24
Cleaning or Replacing Gun Liner
24
Installing Wire Spool and Adjusting Hub Tension
25
Troubleshooting
26
Welding Trouble
26
Wire Drive/Gun Trouble
26
Electrical Diagrams
27
Circuit Diagram for Welding Power Source
27
Wiring Diagram
28
Welding Methods & Troubleshooting
29
Holding and Positioning Welding Gun
29
Conditions that Affect Weld Bead Shape
30
Gun Movement During Welding
30
Welding Troubleshooting
31
Porosity
31
Excessive Spatter
32
Incomplete Fusion
32
Lack of Penetration
32
Excessive Penetration
33
Burn-Through
33
Waviness of Bead
33
Distortion
33
Parts List
34
Main Assembly
35
Drive Assembly
37
GA-17C Gun Parts Diagram
38
Options and Accessories
40

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