Miller Electric OM-227 398D 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 4/05

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 XR Aluma-Pro From Miller to You Table of Contents Declaration of Conformity for European Community CE Products Symbol Usage Arc Welding HazardsEMF Information About Implanted Medical Devices+ + − DefinitionsWeee Label For Products Sold Within The EU Symbols And DefinitionsManufacturer’s Rating Label For CE Products Only Duty Cycle And Overheating Specifications− Introduction Torch OnlyXR Control Millermatic 350P − InstallationDo not use gas pressure above 50 psi 345 kPa XR-Water-Cooled Gun Connections Millermatic 350P Water Cooled Gun Connections For Aluminum Push−Pull welding Threading Welding Wire Through XR-Control Feeder Adjusting Tension At FeederPin Plug Information Opening Top Cover Of XR-Aluma-Pro GunThreading Welding Wire Through Gun For XR-Aluma-Pro GunGun Controls Gun Pressure Roll Tension Setting− Operation Shielding Gas Coolant Supply For Water-Cooled Models Only Gun Drive Assembly Maintenance For An XR-Aluma-Pro Gun Replacing Head Tube Liner In XR-Aluma-Pro Guns Changing Gun Contact TipReplacing The Gun Liner On XR-Aluma-Pro Guns Power Pin EndTurn Off welding power source and wire feeder Gun End− Maintenance & Troubleshooting Routine Maintenance For Aluminum Push/Pull GunsCleaning The Gun Liner On XR-Aluma-Pro Guns Gun End Turn Off welding power source and wire feederTrouble Remedy Troubleshooting TableDisconnect power before troubleshooting − Electrical Diagrams Circuit Diagram For XR-Aluma-Pro Gun− Parts List Exploded View Of XR-A Aluma-Pro GunPart Description Quantity 229 Water Head Tube Assembly Of Aluma-Pro Gun Air Head Tube Assembly Of Aluma-Pro Gun − Parts List Including Consumables NumberHeavy Duty FasTiptContact Tips SOCKET/WRENCH Selection Table Standard Metric Material Thickness Reference Chart Service SupportOwner’s Record