Miller Electric D-74DX manual From Miller to You

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Miller is the first welding equipment manufacturer in the U.S.A. to be registered to the ISO 9001:2000 Quality System Standard.

From Miller to You

Thank you and congratulations on choosing Miller. Now you can get the job done and get it done right. We know you don’t have time to do it any other way.

That’s why when Niels Miller first started building arc welders in 1929, he made sure his products offered long-lasting value and superior quality. Like you, his customers couldn’t afford anything less. Miller products had to be more than the best they could be. They had to be the best you could buy.

Today, the people that build and sell Miller products continue the tradition. They’re just as committed to providing equipment and service that meets the high standards of quality and value established in 1929.

This Owner’s Manual is designed to help you get the most out of your Miller products. Please take time to read the Safety precautions. They will help you protect yourself against potential hazards on the worksite.

We’ve made installation and operation quick and easy. With Miller you can count on years of reliable service with proper maintenance. And if for some reason the unit needs repair, there’s a Troubleshooting section that will help you figure out what the problem is. The parts list will then help you to decide the exact part you may need to fix the problem. Warranty and service information for your particular model are also provided.

Miller Electric manufactures a full line

of welders and welding related equipment. For information on other quality Miller

products, contact your local Miller distributor to receive the latest full line catalog or individual specification sheets. To locate your nearest distributor or service agency call 1-800-4-A-Miller, or visit us at www.MillerWelds.com on the web.

Mil_Thank 2005−04

Working as hard as you do

−every power source from Miller is backed by the most hassle-free warranty in the business.

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Contents Description OM-1500-7 204 129HProcesses File MIG GmawFrom Miller to You Table of Contents Standards Decwire6/05Directives Electric Shock can kill Symbol UsageArc Welding Hazards HOT Parts can cause severe burnsWelding can cause fire or explosion Fumes and Gases can be hazardousARC Rays can burn eyes and skin Flying Metal or Dirt can injure eyesFalling Unit can cause injury Welding Wire can cause injuryFire or Explosion hazard Moving Parts can cause injuryEMF Information Principal Safety StandardsCalifornia Proposition 65 Warnings About Implanted Medical DevicesIndique des instructions spécifiques Symboles utilisésUNE Décharge Électrique peut entraîner la mort LE Soudage peut provoquer un in cendie ou une explosion DES Pièces Chaudes peuvent provoquer des brûlures gravesLES Fumées ET LES GAZ peuvent être dangereux Risque D’INCENDIE OU D’EXPLO- Sion LE Bruit peut endommager l’ouïeLES Bouteilles peuvent exploser si elles sont endommagées LA Chute DE L’APPAREIL peut blesserLE Soudage À L’ARC risque de provoquer des interférences Proposition californienne 65 AvertissementsLES Fils DE Soudage peuvent provoquer des blessures En ce qui concerne les implants médicaux Principales normes de sécuritéInformation EMF OM-1500-7 Keep your head out of the fumes Disconnect input plug or power before working on machineDrive rolls can injure fingers Rating Label For CE Products Symbols And DefinitionsSome symbols are found only on CE products Weee Label For Products Sold Within The EURating SpecificationsSite Selection Exceed 100 PSI 689 kPa Equipment Connection DiagramsShielding gas pressure not to Rear Panel Connections And Rotating Drive Assembly Pin Plug Information Wire Type, Size, And Feed Speed Capability TableMotor Speed Wire Type Wire Size Feed Speed Capability Gun Recommendation TableInstalling And Threading Welding Wire Ment above.Cut wire off. Close coverWhen DIP switch positions are changed, Setting Internal DIP SwitchesDIP Switch S1 DIP Switch S4 Not For Customer Use Position Settings And Results For DIP Switch S1Power Source Selection Menu Operational Terms Power SwitchLeft/Right Select Switch Jog/Purge Switch Time sec Wire SpeedFront Panel Controls Non-CE Models Program Push ButtonUpper Display CE ModelsSetup Push Button Lower DisplaySequence Push Button Adjust ControlTime Welding Sequence Diagram Sequence Push Button Setup Push ButtonAuxiliary Menus Upper DisplayTrigger Hold Setup Reset To Factory SettingsPower Source Selection Menu Wire Feed Speed UnitsCode Display HoldSoftware Revision Level For more information on Sequence Push Button see Section Optional Dual Schedule Switch DiagramsSequence Parameters In a Program LED3-Related Error Indications DiagnosticsError There is a two-position DIPMonths Diagnostics For User Defined OptionsRoutine Maintenance Trouble Remedy TroubleshootingDisconnect power before troubleshooting PullOM-1500-7 − Electrical Diagram 204 144-C − Parts List Part Description Quantity Control Box Harness Connectors/Receptacles PLG117 165See -1 For Drive Roll & Wire Guide Kits Hardware is common Not available unless listed21 . PC51,151 201 Roll Drive Drive Roll And Wire Guide Kits Fraction MetricKit Roll Wire Size Roll Drive KitSupport ServiceYour distributor also gives For assistance in filing or settling claims, contact To locate a Distributor or Service Agency visitMiller Electric Mfg. Co Your distributor and/or equipment manufacturer’s