Lincoln Electric 550, 350 manual IM990

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MAGNUM™PRO 350 and 550 FUME GUNS

TYPE: K2649-1, K2650-1

Safety Depends on You

Lincoln arc welding and cutting equipment is designed and built with safety in mind. However, your overall safety can be increased by proper installation ... and thoughtful opera- tion on your part. DO NOT INSTALL, OPERATE OR REPAIR THIS EQUIPMENT WITHOUT READING THIS MANUAL AND THE SAFETY PRECAUTIONS CONTAINED THROUGHOUT. And, most importantly, think before you act and be careful.

IM990

October, 2008

OPERATORʼS MANUAL

Copyright © Lincoln Global Inc.

• World's Leader in Welding and Cutting Products •

• Sales and Service through Subsidiaries and Distributors Worldwide •

Cleveland, Ohio 44117-1199 U.S.A. TEL: 216.481.8100 FAX: 216.486.1751 WEB SITE: www.lincolnelectric.com

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Contents IM990 California Proposition 65 Warnings SafetyElectric Shock can kill Iii Welding and Cutting Sparks can Cause fire or explosionSûreté Pour Soudage a LʼArc Précautions DE SûretéThank You Table of Contents Technical Specifications Magnum PRO Fume Guns InstallationMagnum PRO 350 and 550 Fume Guns Feeder END Figure A.2, Items 1 thru Unpacking the Fume GUNFeeder END Figure A.4, Items 1 thru Compatibility of Welding Machines and Wire Feeders Safety PrecautionsPrepare the Welding Machine and Wire Feeder as follows Preparing the Fume GUN for WeldingKit No. for Gun Model Select and Install a Wire Feeder Connection K KITWire Diameter 350 amp 550 amp Select and Install GUN Consumable PartsKP Nos. for Gun Model Removing the Fume Tube Assembly See figure A.7 Connect the GUN to the Wire FeederConnect the GUN to the Fume Collection System Product Description OperationTrigger Position See Figure B.1 Selecting or ChangingWelding Also See Installation Section Load Specified Wire Into the GUNPrepare the Fume GUN for Make the WeldAccessories or Options AccessoriesRoutine Cleaning Inspections MaintenanceGAS Diffuser Replacement Liner Assembly Cleaning or ReplacementGun Handle, See Figure D.1 Trigger and Accessory Switch Lead RoutingsTrigger Assembly Replacement GUN Tube ReplacementGUN Cable Assembly Replacement Assembly Cleaning or ReplacementMaintenance HOW to USE Troubleshooting Guide TroubleshootingProblems Path Unkinked wire emerges Poor fume extraction Possible Areas Recommended Symptoms Possible Recommended Symptoms Cause Course of Action Magnum PRO 350 and 550 Fume Guns Magnum PRO 350 and 550 Fume Guns Precaucion Aviso DE

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