Lincoln Electric 170I manual 1TROUBLESHOOTINGE-1, HOW to USE Troubleshooting Guide

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E-1TROUBLESHOOTINGE-1

HOW TO USE TROUBLESHOOTING GUIDE

WARNING

Service and Repair should only be performed by Liquid Arc Factory Trained Personnel. Unauthorized repairs performed on this equipment may result in danger to the technician and machine operator and will invalidate your factory warranty. For your safety and to avoid Electrical Shock, please observe all safety notes and precautions detailed throughout this manual.

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This Troubleshooting Guide is provided to help you locate and repair possible machine malfunctions. Simply follow the three-step procedure listed below.

Step 1. LOCATE PROBLEM (SYMPTOM). Look under the column labeled “PROBLEM (SYMPTOMS)”. This column describes pos- sible symptoms that the machine may exhibit. Find the listing that best describes the symptom that the machine is exhibiting.

Symptoms are grouped into three main cat- egories: output problems, function prob- lems, welding problems.

Step 2. PERFORM EXTERNAL TESTS. The second column labeled “POSSIBLE AREAS OF MISADJUSTMENT(S)” lists the obvious external possibilities that may con- tribute to the machine symptom. Perform these tests/checks in the order listed. In general, these tests can be conducted with- out removing the case wrap-around cover.

Step 3. PERFORM COMPONENT TESTS. If you have exhausted all of the recom-

mended tests in Step 2, Consult your Local Authorized Field Service Facility.

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the tests safely, contact your LOCAL AUTHORIZED LIQUID ARC FIELD SERVICE

FACILITY for assistance before you proceed.

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Handymig 170i

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Contents Handymig Safety For Engine powered equipmentElectric and Magnetic Fields may be dangerous Fumes and Gases can be dangerous Electric Shock can killARC Rays can burn IiiCylinder may explode if damaged Welding Sparks can cause fire or explosionInstructions for ELECTRO- Magnetic Compatibility Assessment of AreaPlease Examine Carton and Equipment For Damage Immediately Table of Contents Section E ViiiSection D Section FInstallation Technical Specifications HandymigSafety Precautions Identify and Locate ComponentsOutput Connections Work Clamp InstallationSelect Suitable Location StackingConnecting Gun Cable to the Handymig GUN InstallationWork Cable Installation GAS ConnectionInput Connections Figure A.5Electrical Input Connection For Rated Output Line Cord ConnectionOperation Design Features AdvantagesOperational Features and Controls General DescriptionLimitations Controls and SettingsWelding Capability Sequence of Operation Wire LoadingWelding Operations Wire Threading Figure B.4Making a Weld Cleaning Tip And NozzleProcess Guidelines Welding with Fcaw Innershield Changing Machine Over to Feed Other Wire SizesWelding with Gmaw MIG Shielding GasLearning to Weld Learning to WeldOverload Protection SELF-SHIELDED Fcaw Welding ARC Gmaw MIG Welding ARCJoint Types and Positions Process SelectionCommon Metals Fillet Welds Welding In The Vertical PositionPenetration Vertical-down Welding Machine SET UP for the SELF-SHIELDED Fcaw ProcessWelding Techniques for the SELF- Shielded Fcaw Process Correct Welding PositionCorrect Electrical Stickout ESO Correct Welding SpeedHelpful Hints PracticeMachine SET UP for the Gmaw MIG Process Welding Techniques for the Gmaw MIG ProcessFor the Handymig 170i, use the following To Correct Poor Penetration in order of impor- tance Troubleshooting WeldsTo Eliminate a Ropy Convex Bead To Eliminate Stubbing* in order of importanceProper Gun Handling Application Chart GUN and Cable Maintenance MaintenanceRoutine Maintenance Changing Drive Roll Component Replacement ProceduresChanging the Contact TIP Liner trim length Changing LinerGUN Handle Parts Ground Test Procedure 1TROUBLESHOOTINGE-1 HOW to USE Troubleshooting GuideProblems Possible Areas Symptoms Misadjustments TroubleshootingTroubleshooting Guide Recommended Course of ActionAuthorized Field Service Facility Contact your local Liquid ArcWelding Problems Wiring Diagrams Handymig 170i Wiring Diagram CodePrecaucion Warnung Copyright 2000 Lincoln Global Inc