Miller Gold Seal 440 Manuale d'uso - Pagina 31

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Miller Gold Seal 440 Manuale d'uso

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Table of Contents

Safety Information3

Specifications3

Welding Power Source3

Volt-Ampere Curves4

Welding Power Source Duty Cycle Chart4

Installing Work Clamp5

Installing The Running Gear5

Installing Gas Supply6

Connecting To Weld Output Receptacles6

Typical Regulator/Flowmeter Installation6

Installing Welding Gun7

Weld Output Connections7

Gun And Trigger Leads Connections7

Selecting A Location And Connecting Input Power8

Location And Input Power Connections8

Electrical Service Requirements8

Installing Wire Spool9

Threading Welding Wire10

Safety Equipment12

Shielding Gas12

Maintenance & Troubleshooting14

Sequence Of Operation For Hard And Flux Cored Wires14

Sequence Of Operation For Aluminum Welding14

Routine Mainteannce14

Overload Protection15

Circuit Breaker15

Fuse F1 Location15

Cleaning Or Repairing Drive Assembly16

Replacing Gun Contact Tip16

Cleaning Or Replacing Gun Liner17

Troubleshooting18

Welding Trouble18

Electrical Diagrams19

Welding Methods & Troubleshooting20

Conditions That Affect Weld Bead Shape21

Gun Movement During Welding21

Welding Troubleshooting22

Weld Bead Characteristics22

Excessive Spatter23

Incomplete Fusion23

Lack Of Penetration23

Excessive Penetration24

Parts For Main Assembly27

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