Lincoln Electric IM687 manual Troubleshooting

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E-6

 

TROUBLESHOOTING

E-6

 

 

 

 

 

 

Observe all Safety Guidelines detailed throughout this manual

 

 

 

 

 

 

PROBLEMS

POSSIBLE AREAS OF

RECOMMENDED

 

 

(SYMPTOMS)

MISADJUSTMENTS

COURSE OF ACTION

 

 

 

 

 

 

TIG WELDING PROBLEMS

No high frequency. Machine is in

1.

If the machine location is in a

the TIG Mode and has normal out-

 

highly dirty environment with

put.

 

conductive contaminants, check

 

 

and clean the spark gap with a

 

 

low pressure air stream per the

 

 

maintenance instructions.

 

 

 

No gas flow when Amptrol is activat-

1.

Gas supply is empty or not

ed in the TIG Mode. Machine has

 

turned on.

output - fan runs. A “Click” can be

 

 

heard indicating that the gas sole-

2.

Flow regulator may be set too

noid valve is operating.

 

low.

 

3.

Gas hose may be pinched.

 

4.

Gas flow may be blocked with

 

 

dirt. Check filter screen inside

 

 

gas inlet fitting to solenoid valve.

 

 

Use filters to prevent reoccur-

 

 

rence.

 

5.

Consult your local welder/gas

 

 

distributor.

 

 

 

When AC TIG welding, the arc is

1.

Tungsten electrode may be too

erratic and there is a loss of “clean-

 

small for process. Use a larger

ing” of the work piece.

 

diameter tungsten or a pure

 

 

tungsten.

 

2.

If a helium blend is used as a

 

 

shielding gas, then reduce the

 

 

percentage of helium.

 

 

 

The end of the tungsten electrode

1.

The welding current is too high

melts away.

 

for the electrode type and/or

 

 

size. See the Table B.1 in the

 

 

Operation Section of this manu-

 

 

al.

 

 

 

Contact your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance.

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.

SQUARE WAVE TIG 175 PRO

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Contents Safety Depends on You Square Wave TIG 175 PROSafety Square Wave TIG 175 PROElectric Shock can kill Welding Sparks can cause fire or explosion IiiPrécautions DE Sûreté Sûreté Pour Soudage a L’ArcThank You Table of Contents Installation Technical Specifications Square Wave TIG 175 PR0 K1478-3Safety Precautions Select Suitable LocationInput Connections Output Connections Connections for TIG Gtaw WeldingTIG Torch Connection Work Cable ConnectionRemote Control Connection Connections for Stick Smaw WeldingStick Electrode Cable and Work Cable Connection Operation Product DescriptionIncluded Equipment Welding CapabilityControls and Settings Power Switch & Light Turns power on orWelding in TIG Mode Remote Control OperationOperating Steps Benefits of the Square Wave DesignWelding in Stick Mode Smaw ProcessGtaw Process Accessories Optional EquipmentMaintenance Safety PrecautionsRoutine and Periodic Maintenance FAN Motor or FAN Blade ReplacementTroubleshooting HOW to USE Troubleshooting GuideSymptoms Possible AreasCourse of Action Troubleshooting TIG Mode Problems Square Wave TIG 175 PRO APR96TIG Welding Problems Troubleshooting Stick Welding Problems Field Service Facility for technicalWiring Diagram Square Wave TIG 175 PRO 208/ 230/ 1 Wiring Diagram Wiring Diagram Square Wave TIG 175 PRO 460/575/1/60Square Wave TIG 175 PRO Basic Course $700.00Precaucion Aviso DE