Lincoln Electric IM756-A manual Contact your local Lincoln Authorized Field Service, Facility

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E-3

 

 

TROUBLESHOOTING

 

 

 

E-3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Observe all Safety Guidelines detailed throughout this manual

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PROBLEMS

RECOMMENDED

 

 

 

 

 

 

 

POSSIBLE

 

 

 

 

 

(SYMPTOMS)

 

 

CAUSE

 

 

COURSE OF ACTION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FEEDING PROBLEMS

 

 

 

 

 

 

 

 

No wire feed when gun trigger is

 

 

1. The thermostat may be tripped

 

 

 

 

 

 

 

 

pulled.

 

 

due to overheating. Let machine

 

 

 

 

 

 

 

 

 

 

 

 

cool. Weld within the duty cycle

 

 

 

 

 

 

 

 

 

 

 

 

or remove any air obstruction to

 

 

If all recommended possible areas

 

 

 

 

 

 

 

 

 

 

 

 

 

the machine.

 

 

of misadjustment have been

 

 

 

 

 

 

 

 

 

 

 

checked and the problem persists,

 

 

 

 

 

 

 

 

2. Gun trigger may be faulty.

 

 

Contact your local

Lincoln

 

 

 

 

 

 

 

 

 

 

 

Authorized Field

Service

 

 

 

 

 

 

 

 

3. Drive Roll tension is set too high.

 

 

Facility.

 

 

 

 

 

 

 

 

 

4. Wire may be kinked or jammed.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Inspect Drive Roll and Guide

 

 

 

 

 

 

 

 

 

 

 

 

Tubes.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.

HANDY MIG

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Contents Handy MIG California Proposition 65 Warnings SafetyElectric Shock can kill Iii Welding Sparks can cause fire or explosionSûreté Pour Soudage a L’Arc Précautions DE SûretéThank You Master Table of Contents for ALL Sections Handy MIG InstallationTechnical Specifications Handy MIG Electric Shock can kill Safety PrecautionsIdentify and Locate Components Input Connections Select Suitable LocationStacking Changing PolarityExtension Cord Usage Shielding GAS ConnectionCode Requirements for ELECTRI- CAL Input Connections Requirements for Maximum OutputGeneral Description Operational Features and ControlsDesign Features and Advantages OperationWelding Operations Controls and SettingsWelding Capability LimitationsContact Tip To Work Distance Ctwd Contact TIP Wire Electrode3OPERATIONB-3 Shielding GASTable B.1 Handy MIG 4OPERATIONB-4Making a Weld Thermal Protection Cleaning TIP and GAS NozzleChanging Machine Over to Feed Other Wire Sizes Overload ProtectionMIG Welding Wire AccessoriesAccessories Innershield Welding WireRoutine and Periodic Maintenance MaintenanceMaintenance Safety Precautions Items Requiring No MaintenanceChanging the Contact TIP Cleaning the GUN LinerCleaning Components AS Required Component Replacement ProceduresWork Cable Installation GUN Assembly RemovalHOW to USE Troubleshooting Guide TroubleshootingRecommended Course of Action Problems Possible Symptoms CauseFacility Contact your local Lincoln Authorized Field ServiceWelding Problems Handy DiagramsWiring Diagram for Code Hinge Door Assembly for Code 10919 only Handy MIG Handy MIG Precaucion Warnung