Lincoln Electric IM520-B manual Troubleshooting

Page 33

TROUBLESHOOTING

Observe Safety Guidelines

detailed in the beginning of this manual.

Troubleshooting Guide

 

 

 

 

 

 

 

 

PROBLEMS

 

 

POSSIBLE AREAS OF

 

 

(SYMPTOMS)

 

 

MISADJUSTMENT(S)

 

 

 

 

 

TIG WELDING PROBLEMS

 

 

No high frequency. Machine is in

 

 

1. In order for the high frequency

 

 

the TIG Mode and has normal

 

 

 

to operate, the machine must

 

 

output.

 

 

 

be either in the start only

 

 

 

 

 

 

Mode or the continuous high

 

 

 

 

 

 

frequency mode.

 

 

 

 

 

2.

The high frequency spark gap

 

 

 

 

 

 

may be too large or shorted.

 

 

 

 

 

 

Check gap as per

 

 

 

 

 

 

maintenance instructions.

 

 

 

 

 

 

 

 

 

No gas or water flow when arc start

 

 

1.

Gas supply is empty or not

 

 

switch or amptrol is activated in the

 

 

 

turned on.

 

 

TIG Mode. Machine has output -

 

 

 

 

 

 

fan runs. When toggling between

 

 

2.

Gas or water hose may be

 

 

the Stick and TIG Modes a “Click”

 

 

 

pinched.

 

 

can be heard indicating that the

 

 

 

 

 

 

solenoids are operating.

 

 

3.

Gas or water solenoid may be

 

 

 

 

 

 

blocked with dirt. Use filters

 

 

 

 

 

 

to prevent reoccurrence.

 

 

 

 

 

 

Consult your Local welder/gas

 

 

 

 

 

 

distributor.

 

 

 

 

 

 

 

 

 

Arc rectification when AC TIG

 

 

1.

Tungsten electrode may be

 

 

welding.

 

 

 

too small for process.

 

 

 

 

 

2.

Manual balance control may

 

 

 

 

 

 

be misadjusted. Readjust to

 

 

 

 

 

 

the negative direction.

 

 

 

 

 

3.

If helium gas is being used,

 

 

 

 

 

 

reduce percentage of helium.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RECOMMENDED COURSE OF ACTION

If all recommended possible areas of misadjustment have been checked and the problem persists,

Contact your local Lincoln Authorized Field Service Facility.

CAUTION

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

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Contents Square Wave TIG Safety Electric Shock can kill Welding Sparks can cause fire or explosion Sûreté Pour Soudage a L’Arc Précautions DE SûretéPlease Examine Carton and Equipment For Damage Immediately Table of Contents Installation Select Suitable Location Safety PrecautionsStacking TiltingRear Panel Input ConnectionsTIG Torch Connection Output ConnectionsStick Electrode Cable Connection Operation Safety InstructionsOperating Instructions General WarningsOperation Work Design Features and Advantages Operational Features and ControlsGeneral Description Recommended Processes EquipmentLimitations Welding CapabilityControl Panel Keys Controls and SettingsCase Front Controls DisplayRecommended Polarity Settings for TIG Welding Hand and Foot Amptrol Accessory OperationWelding Operation TIG WeldingTypical Current Ranges for Tungsten Electrodes TIG Welding Sequence of Operation 2-STEP ModeAdvanced TIG Welding Features TIG Welding Sequence of Operation 4-Step ModeAC Wave Balance and Auto Balance Stick Welding Auxiliary PowerOverload Protection ALL MachinesOptions / Accessories AccessoriesInstallation of Field Installed Options Undercarriage FunctionMaintenance MaintenanceRoutine and Periodic Maintenance General Assembly Exploded View How To Use Troubleshooting Guide TroubleshootingTroubleshooting Guide Problems Possible Areas Symptoms MisadjustmentsRecommended Course of Action Troubleshooting Function Problems TIG Mode Problems TIG Welding Problems Troubleshooting Stick Welding Problems Wiring Wiring Diagram Square Wave TIG 255 Code 10451, 10452 Wiring DiagramNew Lessons in Arc Welding How To Read Shop DrawingsNeed Welding Training? Basic CoursePrecaucion WarnungAtenção Warnung Limited Warranty