Lincoln Electric manual TIG Mode Problems, Square Wave TIG 175 PRO APR96

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15

 

TROUBLESHOOTING

15

 

 

 

 

 

 

 

Observe all Safety Guidelines detailed throughout this manual

 

 

 

 

 

 

PROBLEMS

POSSIBLE AREAS OF

RECOMMENDED

 

(SYMPTOMS)

MISADJUSTMENTS(S)

COURSE OF ACTION

 

 

 

 

 

 

TIG MODE PROBLEMS

Machine output is intermittently lost.

1. Problem may be caused by high

Gas flow and high frequency are

 

frequency interference. Make

also interrupted.

 

sure that the machine is ground-

 

 

ed properly according to the

 

 

installation instructions. If there

 

 

are other high frequency

 

 

sources in the area, make cer-

 

 

tain that they are grounded

 

 

properly.

 

2.

Check Amptrol for proper opera-

 

 

tion and loose connections.

 

3.

Check for proper input voltage

 

 

and proper voltage reconnec-

 

 

tion.

 

 

 

Arc “Flutters” when TIG welding.

1.

Tungsten electrode may be too

 

 

large in diameter for the current

 

 

setting.

 

2.

Tungsten not “sharp” when

 

 

welding in DC - mode.

 

3.

Gas shielding may be insuffi-

 

 

cient. Increase gas flow; reduce

 

 

tungsten stickout beyond gas

 

 

cup.

 

4.

Check for contaminated gas or

 

 

leaks in the gas line, torch, or

 

 

connections

 

5.

If a helium blend is used as a

 

 

shielding gas, then reduce the

 

 

percentage of helium.

 

 

Arc “Pulsates” when AC TIG

Micro Switch mounted on Polarity

Switch is not opening in “AC” mode.

welding.

 

 

 

 

 

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

APR96

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Contents Safety Depends on You Square Wave TIG 175 PROSafety California Proposition 65 WarningsElectric Shock can kill Welding Sparks can cause fire or explosion IiiPrécautions DE Sûreté Sûreté Pour Soudage a L’ArcThank You Table of Contents Installation Square Wave TIG 175 PROLifting and Moving Select Suitable LocationStacking TiltingInput Reconnect Procedure Input Supply ConnectionsTIG Torch Connection Output ConnectionsConnections for TIG Gtaw Welding Work Cable ConnectionConnections for Stick Smaw Welding Remote Control ConnectionStick Electrode Cable and Work Cable Connection General Description Safety PrecautionsOperation Included EquipmentControls and Settings Power Switch & Light Turns power onOperating Steps Welding in TIG ModeRemote Control Operation Benefits of the Square Wave DesignSmaw Process Welding in Stick ModeGtaw Process Accessories Optional AccessoriesRoutine and Periodic Maintenance MaintenanceSafety Precautions FAN Motor or FAN Blade ReplacementTroubleshooting HOW to USE Troubleshooting GuidePossible Areas SymptomsCourse of Action Troubleshooting TIG Mode Problems Square Wave TIG 175 PRO APR96TIG Welding Problems Troubleshooting Symptoms Misadjustmentss Course of Action Field Service Facility for technicalSquare Wave TIG 175 PRO Wiring Diagram Wiring Diagram Square Wave TIG 175 PRO 240/380/415/1/50/60Square Wave TIG 175 PRO Basic Course $700.00Precaucion Aviso DE